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Add files via upload

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.env ADDED
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+ OPENAI_API_KEY=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
PROJECT_REVIEW.md ADDED
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1
+ # Project Review - AutoExamGen
2
+
3
+ ## Overview
4
+ This is a comprehensive **Exam Question Generator** system built with Python and Flask. The system automatically generates exam questions (MCQ, Short Answer, Long Answer) from input text using NLP techniques.
5
+
6
+ ## Project Structure
7
+
8
+ ### Core Modules
9
+
10
+ 1. **`app.py`** - Flask web application (main entry point)
11
+ - Handles file uploads (PDF, DOCX, TXT)
12
+ - Multi-step form flow (Input → Configuration → Results)
13
+ - Session management
14
+ - Question paper generation and download
15
+
16
+ 2. **`exam_question_system.py`** - Main orchestration module
17
+ - Coordinates all components
18
+ - Handles question generation pipeline
19
+ - Supports syllabus-based generation
20
+
21
+ 3. **`question_generator.py`** - Question generation engine
22
+ - Rule-based question generation (default)
23
+ - Optional transformer-based generation (T5 model)
24
+ - Multiple question generation strategies
25
+
26
+ 4. **`keyword_extractor.py`** - Keyword and concept extraction
27
+ - RAKE algorithm for keyword extraction
28
+ - Named entity recognition
29
+ - Important sentence identification
30
+
31
+ 5. **`text_processor.py`** - Text preprocessing
32
+ - Text cleaning and normalization
33
+ - Sentence and word tokenization
34
+ - Stopword removal and lemmatization
35
+
36
+ 6. **`option_generator.py`** - MCQ option generation
37
+ - Distractor generation using WordNet
38
+ - Synonym-based options
39
+ - Answer extraction from context
40
+
41
+ 7. **`syllabus_processor.py`** - Syllabus-based question generation
42
+ - Parses syllabus structure
43
+ - Topic-based question generation
44
+ - Unit and topic extraction
45
+
46
+ 8. **`local_question_generator.py`** - Alternative transformer-based generator
47
+ - Uses T5-base model for question generation
48
+
49
+ ## Issues Found and Fixed
50
+
51
+ ### ✅ Fixed Issues
52
+
53
+ 1. **`app.py` - Line 27: Duplicate Variable Assignment**
54
+ - **Issue**: `system_loading = False` was declared twice
55
+ - **Fix**: Removed duplicate assignment
56
+
57
+ 2. **`app.py` - Lines 382-529: Unreachable Code**
58
+ - **Issue**: Dead code after return statement (lines 374, 380)
59
+ - **Fix**: Removed all unreachable code block
60
+ - **Impact**: Cleaned up ~150 lines of dead code
61
+
62
+ 3. **`option_generator.py` - Lines 175-184: Unreachable Code**
63
+ - **Issue**: Code after return statement on line 174
64
+ - **Fix**: Removed unreachable exception handling block
65
+
66
+ 4. **`exam_question_system.py` - Line 172: Syntax Error**
67
+ - **Issue**: Missing proper indentation in multi-line print statement
68
+ - **Fix**: Fixed indentation for string continuation
69
+
70
+ ## Code Quality Assessment
71
+
72
+ ### Strengths ✅
73
+
74
+ 1. **Well-Structured Architecture**
75
+ - Clear separation of concerns
76
+ - Modular design with single responsibility
77
+ - Good use of classes and methods
78
+
79
+ 2. **Error Handling**
80
+ - Try-except blocks throughout
81
+ - Graceful fallbacks (rule-based when transformers fail)
82
+ - User-friendly error messages
83
+
84
+ 3. **Documentation**
85
+ - Docstrings for classes and methods
86
+ - Type hints in some modules
87
+ - README with usage instructions
88
+
89
+ 4. **Feature Completeness**
90
+ - Multiple question types (MCQ, Short, Long)
91
+ - File upload support (PDF, DOCX, TXT)
92
+ - Web interface with multi-step flow
93
+ - Session management
94
+ - Download functionality
95
+
96
+ 5. **NLP Integration**
97
+ - Multiple NLTK components
98
+ - RAKE for keyword extraction
99
+ - WordNet for synonyms/distractors
100
+ - Optional transformer models
101
+
102
+ ### Areas for Improvement 🔧
103
+
104
+ 1. **Code Duplication**
105
+ - Some repeated patterns in question formatting
106
+ - Similar error handling in multiple places
107
+ - **Recommendation**: Extract common functions
108
+
109
+ 2. **Configuration Management**
110
+ - Hardcoded values scattered throughout
111
+ - Secret key in code (`app.secret_key`)
112
+ - **Recommendation**: Use config file or environment variables
113
+
114
+ 3. **Testing**
115
+ - No visible test files for core functionality
116
+ - **Recommendation**: Add unit tests for each module
117
+
118
+ 4. **Type Hints**
119
+ - Inconsistent use of type hints
120
+ - **Recommendation**: Add type hints throughout
121
+
122
+ 5. **Logging**
123
+ - Mix of `print()` and `logging`
124
+ - **Recommendation**: Standardize on logging module
125
+
126
+ 6. **Error Messages**
127
+ - Some generic error messages
128
+ - **Recommendation**: More specific error handling
129
+
130
+ 7. **Session Management**
131
+ - Large content stored in session
132
+ - **Recommendation**: Consider database for production
133
+
134
+ 8. **Security**
135
+ - Secret key should be in environment variable
136
+ - File upload validation could be stricter
137
+ - **Recommendation**: Add file type validation, size limits
138
+
139
+ ## Dependencies Review
140
+
141
+ ### Current Dependencies (`requirements.txt`)
142
+ - ✅ Well-maintained packages
143
+ - ✅ Appropriate versions
144
+ - ✅ Good coverage of NLP needs
145
+
146
+ ### Recommendations
147
+ - Consider pinning exact versions for production
148
+ - Add `python-dotenv` for environment variable management
149
+ - Consider adding `gunicorn` or `waitress` for production deployment
150
+
151
+ ## Functionality Review
152
+
153
+ ### Working Features ✅
154
+ 1. Text preprocessing and cleaning
155
+ 2. Keyword extraction (RAKE)
156
+ 3. Question generation (rule-based)
157
+ 4. MCQ option generation
158
+ 5. Web interface with file upload
159
+ 6. Session management
160
+ 7. Question paper download
161
+
162
+ ### Potential Issues ⚠️
163
+
164
+ 1. **Transformer Models**
165
+ - Optional transformer loading may fail silently
166
+ - Large model downloads on first use
167
+ - **Recommendation**: Add model download progress indicator
168
+
169
+ 2. **File Processing**
170
+ - PDF extraction may have issues with complex layouts
171
+ - DOCX parsing is basic
172
+ - **Recommendation**: Add better error handling for file parsing
173
+
174
+ 3. **Question Quality**
175
+ - Rule-based questions may be simplistic
176
+ - **Recommendation**: Add question quality scoring
177
+
178
+ 4. **Performance**
179
+ - Synchronous processing may timeout on large files
180
+ - **Recommendation**: Consider async processing or background jobs
181
+
182
+ ## Recommendations for Production
183
+
184
+ 1. **Environment Configuration**
185
+ ```python
186
+ # Use environment variables
187
+ app.secret_key = os.environ.get('SECRET_KEY', 'dev-secret-key')
188
+ ```
189
+
190
+ 2. **Database Integration**
191
+ - Store generated questions in database
192
+ - User session management
193
+ - Question history
194
+
195
+ 3. **Caching**
196
+ - Cache NLTK data downloads
197
+ - Cache processed text
198
+ - Cache generated questions
199
+
200
+ 4. **API Rate Limiting**
201
+ - Add rate limiting for API endpoints
202
+ - Prevent abuse
203
+
204
+ 5. **Monitoring**
205
+ - Add logging to file
206
+ - Error tracking (e.g., Sentry)
207
+ - Performance monitoring
208
+
209
+ 6. **Testing**
210
+ - Unit tests for each module
211
+ - Integration tests for web flow
212
+ - Test file uploads
213
+
214
+ 7. **Documentation**
215
+ - API documentation
216
+ - Deployment guide
217
+ - Configuration guide
218
+
219
+ ## Overall Assessment
220
+
221
+ **Grade: B+**
222
+
223
+ The project is well-structured and functional. The codebase shows good understanding of NLP concepts and Flask web development. The main issues were code cleanup (unreachable code) and minor syntax errors, which have been fixed.
224
+
225
+ ### Key Strengths
226
+ - Comprehensive feature set
227
+ - Good architecture
228
+ - Error handling
229
+ - User-friendly interface
230
+
231
+ ### Key Weaknesses
232
+ - Some code duplication
233
+ - Missing tests
234
+ - Configuration management
235
+ - Production readiness concerns
236
+
237
+ ## Next Steps
238
+
239
+ 1. ✅ **Completed**: Fixed code issues
240
+ 2. 🔄 **Recommended**: Add unit tests
241
+ 3. 🔄 **Recommended**: Improve configuration management
242
+ 4. 🔄 **Recommended**: Add logging standardization
243
+ 5. 🔄 **Recommended**: Security improvements
244
+ 6. 🔄 **Recommended**: Performance optimization
245
+
246
+ ---
247
+
248
+ **Review Date**: February 5, 2026
249
+ **Reviewed By**: AI Code Reviewer
250
+ **Status**: Issues Fixed ✅
README.md CHANGED
@@ -1,2 +1,50 @@
1
- # AutoExamGen
2
- AutoExamGen is an AI-powered system that automatically generates exam questions from text using NLP
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Exam Question Generator
2
+
3
+ An intelligent Python-based system that automatically generates exam questions from input text using NLP techniques.
4
+
5
+ ## Features
6
+
7
+ - **Text Preprocessing**: Cleans and preprocesses input text using NLTK
8
+ - **Keyword Extraction**: Identifies important concepts using RAKE algorithm
9
+ - **Question Generation**: Uses HuggingFace T5 model to generate questions
10
+ - **Option Generation**: Creates multiple-choice options with distractors
11
+ - **Multiple Interfaces**: CLI and Web interface (Flask) support
12
+ - **JSON Output**: Structured output format for easy integration
13
+
14
+ ## Installation
15
+
16
+ 1. Clone or download this project
17
+ 2. Install dependencies:
18
+ ```bash
19
+ pip install -r requirements.txt
20
+ ```
21
+
22
+ 3. Download required NLTK data:
23
+ ```python
24
+ python -c "import nltk; nltk.download('punkt'); nltk.download('stopwords'); nltk.download('wordnet')"
25
+ ```
26
+
27
+ ## Usage
28
+
29
+ ### Web Interface
30
+ ```bash
31
+ python app.py
32
+ ```
33
+ Then open http://localhost:5000 in your browser.
34
+
35
+ ### Python API
36
+ ```python
37
+ from question_generator import QuestionGenerator
38
+
39
+ generator = QuestionGenerator()
40
+ questions = generator.generate_questions("Your input text here")
41
+ ```
42
+
43
+ ## Project Structure
44
+
45
+ - `question_generator.py` - Core question generation logic
46
+ - `text_processor.py` - Text cleaning and preprocessing
47
+ - `keyword_extractor.py` - Keyword and important sentence extraction
48
+ - `option_generator.py` - Multiple choice option generation
49
+ - `app.py` - Flask web application
50
+ - `
app.py ADDED
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1
+ from flask import Flask, render_template, request, jsonify, send_file, session, redirect, url_for, flash
2
+ import os
3
+ import json
4
+ import tempfile
5
+ from werkzeug.utils import secure_filename
6
+ from exam_question_system import ExamQuestionSystem
7
+ from datetime import datetime
8
+ import uuid
9
+ import threading
10
+ import time
11
+ from docx import Document
12
+ import PyPDF2
13
+ app = Flask(__name__)
14
+ app.config['MAX_CONTENT_LENGTH'] = 16 * 1024 * 1024 # 16MB max file size
15
+ app.config['UPLOAD_FOLDER'] = 'uploads'
16
+ app.config['TEMP_INPUT_FOLDER'] = os.path.join(tempfile.gettempdir(), 'eqg_inputs')
17
+ app.config['SEND_FILE_MAX_AGE_DEFAULT'] = 0 # Disable caching for development
18
+ app.secret_key = 'your-secret-key-change-this-in-production'
19
+
20
+ # Create necessary directories if they don't exist
21
+ os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
22
+ os.makedirs(app.config['TEMP_INPUT_FOLDER'], exist_ok=True)
23
+
24
+ # Global variables for question system
25
+ question_system = None
26
+ system_loading = False
27
+ system_load_error = None
28
+
29
+ def read_file_content(filepath):
30
+ """Read content from a file based on its extension."""
31
+ ext = os.path.splitext(filepath)[1].lower()
32
+
33
+ try:
34
+ if ext == '.pdf':
35
+ text = ""
36
+ with open(filepath, 'rb') as f:
37
+ reader = PyPDF2.PdfReader(f)
38
+ for page in reader.pages:
39
+ text += page.extract_text() + "\n"
40
+ return text
41
+
42
+ elif ext == '.docx':
43
+ doc = Document(filepath)
44
+ return "\n".join([paragraph.text for paragraph in doc.paragraphs])
45
+
46
+ else:
47
+ # Default to text file
48
+ with open(filepath, 'r', encoding='utf-8', errors='replace') as f:
49
+ return f.read()
50
+
51
+ except Exception as e:
52
+ raise Exception(f"Error reading {ext} file: {str(e)}")
53
+
54
+ def get_question_system():
55
+ """Get or initialize the question generation system."""
56
+ global question_system, system_loading, system_load_error
57
+
58
+ if question_system is None and not system_loading:
59
+ if system_load_error:
60
+ raise Exception(f"System failed to load: {system_load_error}")
61
+
62
+ system_loading = True
63
+ try:
64
+ print("Initializing question generation system...")
65
+ question_system = ExamQuestionSystem()
66
+ print("Question generation system loaded successfully!")
67
+ except Exception as e:
68
+ system_load_error = str(e)
69
+ system_loading = False
70
+ raise e
71
+ finally:
72
+ system_loading = False
73
+
74
+ if system_loading:
75
+ raise Exception("System is still loading, please wait...")
76
+
77
+ return question_system
78
+
79
+ # Utility: parse human-readable duration text into minutes when possible
80
+ def parse_duration_to_minutes(duration_text):
81
+ try:
82
+ if not duration_text:
83
+ return None
84
+ text = duration_text.strip().lower()
85
+ # Normalize
86
+ text = text.replace('hrs', 'h').replace('hr', 'h').replace('hours', 'h').replace('hour', 'h')
87
+ text = text.replace('minutes', 'm').replace('minute', 'm').replace('mins', 'm').replace('min', 'm')
88
+ # Patterns like '2h 30m'
89
+ import re
90
+ hours = 0
91
+ minutes = 0
92
+ # Match hours
93
+ h_match = re.search(r"(\d+)\s*h", text)
94
+ if h_match:
95
+ hours = int(h_match.group(1))
96
+ # Match minutes
97
+ m_match = re.search(r"(\d+)\s*m", text)
98
+ if m_match:
99
+ minutes = int(m_match.group(1))
100
+ if h_match or m_match:
101
+ return hours * 60 + minutes
102
+ # If only a number, treat as minutes
103
+ just_num = re.fullmatch(r"\s*(\d+)\s*", duration_text)
104
+ if just_num:
105
+ return int(just_num.group(1))
106
+ # If something like '3 hour' without m, captured above; if unparseable, return None
107
+ return None
108
+ except Exception:
109
+ return None
110
+
111
+ @app.route('/')
112
+ def index():
113
+ """Welcome page before the step flow."""
114
+ # Clear any existing session data
115
+ session.clear()
116
+ return render_template('welcome.html', project_name='AutoExamGen')
117
+
118
+ @app.route('/step1', methods=['GET'])
119
+ def step1_input():
120
+ """Step 1: Syllabus input page."""
121
+ return render_template('step1_input.html')
122
+
123
+ @app.route('/step2', methods=['GET', 'POST'])
124
+ def step2_configuration():
125
+ """Step 2: Question configuration page."""
126
+ if request.method == 'GET':
127
+ # If user tries to access /step2 directly, redirect to step1
128
+ return redirect(url_for('step1_input'))
129
+
130
+ # Handle POST request (form submission from step1)
131
+ content = None
132
+
133
+ try:
134
+ # Get text input (from textarea)
135
+ text_input = request.form.get('text_input', '').strip()
136
+
137
+ # Check if file was uploaded
138
+ if 'file' in request.files:
139
+ file = request.files['file']
140
+ if file and file.filename != '':
141
+ try:
142
+ # Save the uploaded file
143
+ filename = secure_filename(file.filename)
144
+ if not os.path.exists(app.config['UPLOAD_FOLDER']):
145
+ os.makedirs(app.config['UPLOAD_FOLDER'])
146
+ filepath = os.path.join(app.config['UPLOAD_FOLDER'], filename)
147
+ file.save(filepath)
148
+
149
+ # Store file path in session
150
+ session['content_file'] = filepath
151
+ session.pop('content_text', None) # Clear any text content if it exists
152
+
153
+ # Read the file content for processing
154
+ content = read_file_content(filepath)
155
+ print(f"File uploaded successfully: {filename}, Content length: {len(content)}")
156
+
157
+ except Exception as e:
158
+ error_msg = f'Error processing file: {str(e)}'
159
+ print(error_msg)
160
+ flash(error_msg, 'error')
161
+ return redirect(url_for('step1_input'))
162
+
163
+ # If no file but text content is provided
164
+ if not content and text_input:
165
+ # For small text content, store directly in session
166
+ if len(text_input) < 2000:
167
+ session['content_text'] = text_input
168
+ content = text_input
169
+ else:
170
+ # For large content, save to a temporary file
171
+ temp_file = os.path.join(app.config['UPLOAD_FOLDER'], f'temp_{int(time.time())}.txt')
172
+ with open(temp_file, 'w', encoding='utf-8') as f:
173
+ f.write(text_input)
174
+ session['content_file'] = temp_file
175
+ content = text_input
176
+ print(f"Text input processed, Content length: {len(content)}")
177
+
178
+ # Validate that we have content
179
+ if not content or not content.strip():
180
+ flash('Please provide either a file or paste content', 'error')
181
+ return redirect(url_for('step1_input'))
182
+
183
+ # Process the content for question generation
184
+ try:
185
+ # Initialize question system if not already done
186
+ print("Initializing question system...")
187
+ question_system = get_question_system()
188
+ print("Question system initialized successfully")
189
+
190
+ # Store word count for progress display
191
+ word_count = len(content.split())
192
+ session['word_count'] = word_count
193
+ print(f"Content processed: {word_count} words")
194
+
195
+ # Render the configuration page
196
+ return render_template('step2_config.html',
197
+ word_count=word_count,
198
+ has_syllabus=bool(session.get('syllabus_text', '')))
199
+
200
+ except Exception as e:
201
+ error_msg = f'Error initializing question system: {str(e)}'
202
+ print(error_msg)
203
+ import traceback
204
+ traceback.print_exc()
205
+ flash(error_msg, 'error')
206
+ return redirect(url_for('step1_input'))
207
+
208
+ except Exception as e:
209
+ error_msg = f'An error occurred: {str(e)}'
210
+ print(error_msg)
211
+ import traceback
212
+ traceback.print_exc()
213
+ flash(error_msg, 'error')
214
+ return redirect(url_for('step1_input'))
215
+
216
+ @app.route('/generate', methods=['POST'])
217
+ def step3_generate():
218
+ """Step 3: Generate and display question paper."""
219
+ try:
220
+ # Get form data
221
+ num_questions = int(request.form.get('num_questions', 5))
222
+ question_types = request.form.getlist('question_types')
223
+
224
+ # Get content from session or uploaded file
225
+ content = None
226
+
227
+ # Check for uploaded file first
228
+ if 'content_file' in session and os.path.exists(session['content_file']):
229
+ try:
230
+ content = read_file_content(session['content_file'])
231
+ except Exception as e:
232
+ flash(f'Error reading uploaded file: {str(e)}', 'error')
233
+ return redirect(url_for('step1_input'))
234
+ # Check for direct text content
235
+ elif 'content_text' in session and session['content_text']:
236
+ content = session['content_text']
237
+
238
+ # If no content found, redirect to step 1
239
+ if not content:
240
+ flash('No content found. Please provide content first.', 'error')
241
+ return redirect(url_for('step1_input'))
242
+
243
+ # Initialize question system
244
+ try:
245
+ question_system = get_question_system()
246
+
247
+ # Helper function to safely get integer values from form
248
+ def get_int(form, key, default=0):
249
+ try:
250
+ return int(form.get(key, default))
251
+ except (ValueError, TypeError):
252
+ return default
253
+
254
+ # Store configuration in session with all required fields and safe defaults
255
+ config = {
256
+ 'exam_name': request.form.get('exam_name', 'Sample Exam'),
257
+ 'subject_name': request.form.get('subject_name', 'Subject'),
258
+ 'duration': get_int(request.form, 'duration', 60),
259
+ 'short_questions': get_int(request.form, 'short_questions', 2),
260
+ 'short_marks': get_int(request.form, 'short_marks', 2),
261
+ 'long_questions': get_int(request.form, 'long_questions', 1),
262
+ 'long_marks': get_int(request.form, 'long_marks', 5),
263
+ 'long_attempt': get_int(request.form, 'long_attempt', 1),
264
+ 'mcq_questions': get_int(request.form, 'mcq_questions', 2),
265
+ 'timestamp': datetime.now().strftime('%Y-%m-%d %H:%M:%S')
266
+ }
267
+ session['exam_config'] = config
268
+
269
+ # Get the syllabus/content text
270
+ content = ""
271
+ if 'content_text' in session:
272
+ content = session['content_text']
273
+ elif 'content_file' in session and os.path.exists(session['content_file']):
274
+ content = read_file_content(session['content_file'])
275
+
276
+ if not content.strip():
277
+ raise ValueError("No content available for question generation.")
278
+
279
+ # Generate questions based on content and configuration
280
+ print("Generating questions from content...")
281
+
282
+ # Get number of questions for each type
283
+ num_mcq = config['mcq_questions']
284
+ num_short = config['short_questions']
285
+ num_long = config['long_questions']
286
+
287
+ # Generate questions using the question system
288
+ # We request enough questions for all sections, but without auto-MCQ generation
289
+ # so we can handle categorization manually
290
+ total_questions_needed = num_mcq + num_short + num_long
291
+
292
+ results = question_system.generate_exam_questions(
293
+ input_text=content,
294
+ max_questions=total_questions_needed,
295
+ include_mcq=False, # We'll generate options manually for specific questions
296
+ syllabus_text=content
297
+ )
298
+
299
+ all_questions = results.get('questions', [])
300
+
301
+ # Initialize categories
302
+ generated_questions = {
303
+ 'mcq_questions': [],
304
+ 'short_questions': [],
305
+ 'long_questions': []
306
+ }
307
+
308
+ # Distribute questions
309
+ # We prioritize Short and Long questions first to ensure they get content,
310
+ # as MCQs are easier to fallback/generate
311
+
312
+ # Filter out questions that are too simple for Long answers
313
+ long_candidates = [q for q in all_questions if len(q.get('context', '').split()) > 10]
314
+ short_candidates = [q for q in all_questions if q not in long_candidates]
315
+
316
+ # If we don't have enough long candidates, take from short
317
+ if len(long_candidates) < num_long:
318
+ needed = num_long - len(long_candidates)
319
+ long_candidates.extend(short_candidates[:needed])
320
+ short_candidates = short_candidates[needed:]
321
+
322
+ # 3. Process Long Questions (Prioritize these)
323
+ for _ in range(num_long):
324
+ if long_candidates:
325
+ q = long_candidates.pop(0)
326
+ q['type'] = 'long_answer'
327
+ generated_questions['long_questions'].append(q)
328
+ # Remove from all_questions so we don't reuse
329
+ if q in all_questions:
330
+ all_questions.remove(q)
331
+
332
+ # 2. Process Short Questions
333
+ for _ in range(num_short):
334
+ if short_candidates:
335
+ q = short_candidates.pop(0)
336
+ q['type'] = 'short_answer'
337
+ generated_questions['short_questions'].append(q)
338
+ if q in all_questions:
339
+ all_questions.remove(q)
340
+ elif all_questions: # Fallback to any remaining
341
+ q = all_questions.pop(0)
342
+ q['type'] = 'short_answer'
343
+ generated_questions['short_questions'].append(q)
344
+
345
+ # 1. Process MCQs (Use remaining questions)
346
+ # Extract global keywords for distractors
347
+ global_keywords = [k[1] for k in results.get('keywords', [])]
348
+
349
+ for _ in range(num_mcq):
350
+ if all_questions:
351
+ q = all_questions.pop(0)
352
+ # Generate options for this question
353
+ try:
354
+ mcq_data = question_system.option_generator.create_mcq_options(
355
+ q['question'],
356
+ q['context'],
357
+ correct_answer=q.get('correct_answer'),
358
+ global_keywords=global_keywords
359
+ )
360
+ if mcq_data and 'options' in mcq_data:
361
+ q.update(mcq_data)
362
+ q['type'] = 'mcq'
363
+ generated_questions['mcq_questions'].append(q)
364
+ else:
365
+ # Fallback if option generation fails
366
+ q['type'] = 'short_answer'
367
+ generated_questions['short_questions'].append(q)
368
+ except Exception as e:
369
+ print(f"Error generating options: {e}")
370
+ q['type'] = 'short_answer'
371
+ generated_questions['short_questions'].append(q)
372
+
373
+ # Store the generated questions
374
+ session['generated_questions'] = generated_questions
375
+
376
+ # Calculate and store total marks
377
+ total_marks = (
378
+ (len(session['generated_questions']['short_questions']) * config['short_marks']) +
379
+ (len(session['generated_questions']['long_questions']) * config['long_marks']) +
380
+ len(session['generated_questions']['mcq_questions']) # 1 mark per MCQ
381
+ )
382
+ session['total_marks'] = total_marks
383
+
384
+ # Redirect to results page
385
+ return redirect(url_for('show_results'))
386
+
387
+ except Exception as e:
388
+ error_msg = f'Error generating questions: {str(e)}'
389
+ print(error_msg)
390
+ flash(error_msg, 'error')
391
+ return redirect(url_for('step1_input'))
392
+
393
+ except Exception as e:
394
+ error_msg = f'An error occurred: {str(e)}'
395
+ print(error_msg)
396
+ flash(error_msg, 'error')
397
+ return redirect(url_for('step1_input'))
398
+
399
+ @app.route('/download')
400
+ def download_paper():
401
+ """Download the generated question paper as HTML."""
402
+ try:
403
+ if 'question_paper' not in session:
404
+ return redirect(url_for('index'))
405
+
406
+ # Generate a unique filename
407
+ filename = f"question_paper_{uuid.uuid4().hex[:8]}.html"
408
+
409
+ # Render the printable version
410
+ # Determine display duration similarly to step3
411
+ cfg = session['config']
412
+ display_duration = cfg.get('exam_duration') if cfg.get('exam_duration') else int(round(session['total_marks'] * 1.5))
413
+
414
+ html_content = render_template('printable_paper.html',
415
+ question_paper=session['question_paper'],
416
+ config=cfg,
417
+ total_marks=session['total_marks'],
418
+ exam_date=session['exam_date'],
419
+ display_duration=display_duration)
420
+
421
+ # Create a temporary file
422
+ temp_file = os.path.join(tempfile.gettempdir(), filename)
423
+ with open(temp_file, 'w', encoding='utf-8') as f:
424
+ f.write(html_content)
425
+
426
+ return send_file(temp_file, as_attachment=True, download_name=filename)
427
+
428
+ except Exception as e:
429
+ return jsonify({'error': f'Error downloading paper: {str(e)}'}), 500
430
+
431
+ @app.route('/results')
432
+ def show_results():
433
+ """Display the generated questions."""
434
+ if 'generated_questions' not in session or 'exam_config' not in session:
435
+ flash('No questions generated yet. Please start from the beginning.', 'error')
436
+ return redirect(url_for('step1_input'))
437
+
438
+ # Get config with defaults
439
+ config = session.get('exam_config', {})
440
+ questions = session.get('generated_questions', {})
441
+
442
+ # Ensure all required question types exist in the questions dictionary
443
+ for qtype in ['mcq_questions', 'short_questions', 'long_questions']:
444
+ if qtype not in questions:
445
+ questions[qtype] = []
446
+
447
+ # Calculate total marks
448
+ total_marks = 0
449
+ if 'mcq_questions' in questions:
450
+ total_marks += len(questions['mcq_questions'])
451
+ if 'short_questions' in questions:
452
+ total_marks += len(questions['short_questions']) * 2 # 2 marks per short question
453
+ if 'long_questions' in questions:
454
+ total_marks += len(questions['long_questions']) * 5 # 5 marks per long question
455
+
456
+ # Get exam date from config or use current date
457
+ exam_date = config.get('timestamp', datetime.now().strftime('%Y-%m-%d %H:%M:%S'))
458
+
459
+ return render_template('step3_result.html',
460
+ question_paper=questions, # Changed from questions to question_paper
461
+ config=config,
462
+ total_marks=total_marks,
463
+ exam_date=datetime.strptime(exam_date, '%Y-%m-%d %H:%M:%S').strftime('%B %d, %Y'),
464
+ display_duration=config.get('duration', 60)) # Use configured duration or default to 60 minutes
465
+
466
+ @app.route('/api/health')
467
+ def health_check():
468
+ """Health check endpoint."""
469
+ return jsonify({'status': 'healthy', 'service': 'Exam Question Generator'})
470
+
471
+ @app.route('/api/warmup')
472
+ def warmup():
473
+ """Warmup endpoint to initialize the system."""
474
+ try:
475
+ system = get_question_system()
476
+ return jsonify({
477
+ 'status': 'ready',
478
+ 'message': 'Question generation system is ready',
479
+ 'uses_transformers': system.question_generator.use_transformers
480
+ })
481
+ except Exception as e:
482
+ return jsonify({
483
+ 'status': 'loading' if 'still loading' in str(e) else 'error',
484
+ 'message': str(e)
485
+ }), 202 if 'still loading' in str(e) else 500
486
+
487
+ if __name__ == '__main__':
488
+ print("🌐 Starting Flask Web Application...")
489
+ print("📝 Exam Question Generator Web Interface")
490
+ print("🔗 Access the application at: http://localhost:5000")
491
+ print("💡 Using rule-based question generation for faster startup")
492
+ print("⚡ System will initialize on first use")
493
+
494
+ # Configure Flask for better timeout handling
495
+ app.config['PERMANENT_SESSION_LIFETIME'] = 1800 # 30 minutes
496
+
497
+ app.run(debug=True, host='0.0.0.0', port=5000, threaded=True)
download_nltk_data.py ADDED
@@ -0,0 +1,29 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import nltk
2
+
3
+ def download_nltk_data():
4
+ """Download all required NLTK data packages."""
5
+ print("Downloading NLTK data packages...")
6
+
7
+ # List of NLTK data packages to download
8
+ packages = [
9
+ 'punkt',
10
+ 'averaged_perceptron_tagger',
11
+ 'wordnet',
12
+ 'stopwords',
13
+ 'universal_tagset',
14
+ 'tagsets',
15
+ 'omw-1.4', # Open Multilingual WordNet
16
+ ]
17
+
18
+ for package in packages:
19
+ try:
20
+ print(f"Downloading {package}...")
21
+ nltk.download(package, quiet=False)
22
+ print(f"Successfully downloaded {package}")
23
+ except Exception as e:
24
+ print(f"Error downloading {package}: {str(e)}")
25
+
26
+ print("\nNLTK data download complete!")
27
+
28
+ if __name__ == "__main__":
29
+ download_nltk_data()
exam_question_system.py ADDED
@@ -0,0 +1,376 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import json
2
+ import os
3
+ from datetime import datetime
4
+ from text_processor import TextProcessor
5
+ from keyword_extractor import KeywordExtractor
6
+ from question_generator import QuestionGenerator
7
+ from option_generator import OptionGenerator
8
+ from syllabus_processor import SyllabusProcessor
9
+
10
+ class ExamQuestionSystem:
11
+ def __init__(self, use_transformers=True):
12
+ """Initialize the complete exam question generation system.
13
+
14
+ Args:
15
+ use_transformers: Whether to use transformer models for question generation
16
+ """
17
+ print("Initializing Exam Question Generation System...")
18
+ self.text_processor = TextProcessor()
19
+ self.keyword_extractor = KeywordExtractor()
20
+ # Use rule-based generation by default for faster web deployment
21
+ self.question_generator = QuestionGenerator(use_transformers=use_transformers)
22
+ self.option_generator = OptionGenerator()
23
+ self.syllabus_processor = SyllabusProcessor()
24
+ print("System initialized successfully!")
25
+
26
+ def process_text_file(self, file_path):
27
+ """
28
+ Process a text file and return its content.
29
+
30
+ Args:
31
+ file_path (str): Path to the text file
32
+
33
+ Returns:
34
+ str: File content
35
+ """
36
+ try:
37
+ with open(file_path, 'r', encoding='utf-8') as file:
38
+ return file.read()
39
+ except Exception as e:
40
+ raise Exception(f"Error reading file {file_path}: {e}")
41
+
42
+ def generate_exam_questions(self, input_text, max_questions=5, include_mcq=True, syllabus_text=None):
43
+ """
44
+ Complete pipeline to generate exam questions from input text.
45
+
46
+ Args:
47
+ input_text (str): Input text to generate questions from
48
+ max_questions (int): Maximum number of questions to generate
49
+ include_mcq (bool): Whether to include multiple choice options
50
+ syllabus_text (str, optional): Syllabus text for topic-based question generation
51
+
52
+ Returns:
53
+ dict: Generated questions and metadata
54
+ """
55
+ print("Starting question generation pipeline...")
56
+
57
+ try:
58
+ if not input_text or not input_text.strip():
59
+ raise ValueError("Input text cannot be empty")
60
+
61
+ # If syllabus text is provided, try syllabus-based generation
62
+ if syllabus_text and syllabus_text.strip():
63
+ syllabus_results = self._generate_syllabus_based_questions(input_text, syllabus_text, max_questions, include_mcq)
64
+ if syllabus_results and syllabus_results.get('questions'):
65
+ return syllabus_results
66
+ print("Warning: Syllabus-based generation produced no questions. Falling back to standard generation.")
67
+
68
+ # Otherwise use the standard generation approach
69
+ if not input_text or not input_text.strip():
70
+ raise ValueError("Input text is empty or contains only whitespace")
71
+
72
+ print(f"Input text length: {len(input_text)} characters")
73
+
74
+ # Step 1: Text preprocessing
75
+ print("1. Processing and cleaning text...")
76
+ processed_data = self.text_processor.preprocess_text(input_text)
77
+
78
+ if not processed_data or 'sentences' not in processed_data or not processed_data['sentences']:
79
+ raise ValueError("Failed to process input text into sentences")
80
+
81
+ print(f"Extracted {len(processed_data['sentences'])} sentences from input")
82
+
83
+ # Step 2: Extract keywords and important sentences
84
+ print("2. Extracting keywords and important sentences...")
85
+ key_concepts = self.keyword_extractor.extract_key_concepts(
86
+ processed_data['cleaned_text'],
87
+ processed_data['sentences'],
88
+ top_n_sentences=max(10, max_questions)
89
+ )
90
+
91
+ if not key_concepts or 'important_sentences' not in key_concepts or not key_concepts['important_sentences']:
92
+ # If no important sentences found, use the first few sentences
93
+ print("Warning: No important sentences found, using first few sentences")
94
+ key_concepts['important_sentences'] = processed_data['sentences'][:max_questions]
95
+
96
+ print(f"Found {len(key_concepts.get('important_sentences', []))} important sentences")
97
+
98
+ # Prepare sentences and keywords for generation
99
+ generation_inputs = []
100
+ if key_concepts and 'important_sentences' in key_concepts:
101
+ for item in key_concepts['important_sentences']:
102
+ if isinstance(item, tuple) and len(item) >= 2:
103
+ # item is (score, sentence, keyword) or (score, sentence)
104
+ sentence = item[1]
105
+ keyword = item[2] if len(item) > 2 else None
106
+ generation_inputs.append({'context': sentence, 'answer': keyword})
107
+ elif isinstance(item, str):
108
+ generation_inputs.append({'context': item, 'answer': None})
109
+
110
+ # Step 3: Generate questions
111
+ print("3. Generating questions...")
112
+ questions = []
113
+
114
+ # Generate more questions than requested to ensure we have enough valid ones
115
+ # and to cover all sections (MCQ, Short, Long)
116
+ generation_target = max(max_questions * 2, 10)
117
+
118
+ try:
119
+ questions = self.question_generator.generate_multiple_questions(
120
+ generation_inputs,
121
+ generation_target
122
+ )
123
+
124
+ # Ensure we have a list of questions
125
+ if not questions:
126
+ raise ValueError("No questions were generated")
127
+
128
+ # Convert string questions to proper format
129
+ formatted_questions = []
130
+ for i, q in enumerate(questions):
131
+ if isinstance(q, str):
132
+ formatted_q = {
133
+ 'question': q,
134
+ 'context': 'Generated from input text',
135
+ 'score': 1.0,
136
+ 'type': 'short_answer',
137
+ 'id': f'q_{i+1}'
138
+ }
139
+ formatted_questions.append(formatted_q)
140
+ elif isinstance(q, dict):
141
+ # Ensure required fields exist
142
+ q['question'] = q.get('question', f'Question {i+1}')
143
+ q['context'] = q.get('context', 'No context provided')
144
+ q['score'] = q.get('score', 1.0)
145
+ q['type'] = q.get('type', 'short_answer')
146
+ q['id'] = q.get('id', f'q_{i+1}')
147
+ formatted_questions.append(q)
148
+
149
+ questions = formatted_questions
150
+
151
+ # Step 4: Generate MCQ options if requested and we have enough questions
152
+ if include_mcq and questions:
153
+ print("4. Generating multiple choice options...")
154
+ # Extract global keywords for distractors
155
+ global_keywords = [k[1] for k in key_concepts.get('keywords', [])]
156
+
157
+ for question_data in questions[:max_questions]: # Limit to max_questions
158
+ try:
159
+ mcq_data = self.option_generator.create_mcq_options(
160
+ question_data['question'],
161
+ question_data['context'],
162
+ correct_answer=question_data.get('correct_answer'),
163
+ global_keywords=global_keywords
164
+ )
165
+ if mcq_data and 'options' in mcq_data and len(mcq_data['options']) >= 2:
166
+ question_data.update(mcq_data)
167
+ question_data['type'] = 'mcq'
168
+ print(f"Generated {len(mcq_data['options'])} options for question")
169
+ else:
170
+ print("Not enough options generated, keeping as short answer")
171
+ except Exception as e:
172
+ print(f"Error generating MCQ options: {str(e)}"
173
+ " (continuing with short answer)")
174
+
175
+ except Exception as e:
176
+ import traceback
177
+ print(f"Error in question generation: {str(e)}\n{traceback.format_exc()}")
178
+ # Create fallback questions
179
+ questions = [{
180
+ 'question': f"Sample question {i+1} (error: {str(e)[:50]}...)",
181
+ 'context': 'Error occurred during question generation',
182
+ 'score': 0.0,
183
+ 'type': 'error',
184
+ 'id': f'error_{i}'
185
+ } for i in range(min(3, max_questions))]
186
+
187
+ # Compile results
188
+ results = {
189
+ 'metadata': {
190
+ 'input_word_count': processed_data.get('word_count', 0),
191
+ 'input_sentence_count': len(processed_data.get('sentences', [])),
192
+ 'questions_generated': len(questions),
193
+ 'keywords_extracted': len(key_concepts.get('keywords', [])),
194
+ 'named_entities': len(key_concepts.get('named_entities', []))
195
+ },
196
+ 'keywords': key_concepts.get('keywords', [])[:10],
197
+ 'named_entities': key_concepts.get('named_entities', [])[:10],
198
+ 'questions': questions[:max_questions] # Ensure we don't return more than requested
199
+ }
200
+
201
+ print(f"Successfully generated {len(results['questions'])} questions")
202
+ return results
203
+
204
+ except Exception as e:
205
+ import traceback
206
+ error_msg = f"Error in generate_exam_questions: {str(e)}\n{traceback.format_exc()}"
207
+ print(error_msg)
208
+
209
+ # Return a minimal response with error information
210
+ return {
211
+ 'metadata': {
212
+ 'error': str(e),
213
+ 'input_length': len(input_text) if input_text else 0,
214
+ 'questions_generated': 0
215
+ },
216
+ 'keywords': [],
217
+ 'named_entities': [],
218
+ 'questions': [{
219
+ 'question': f"Error generating questions: {str(e)[:100]}",
220
+ 'context': 'An error occurred during question generation',
221
+ 'score': 0.0,
222
+ 'type': 'error',
223
+ 'id': 'error_0'
224
+ }]
225
+ }
226
+
227
+ print(f"✅ Generated {len(questions)} questions successfully!")
228
+ return results
229
+
230
+ def save_questions_to_json(self, questions_data, output_file):
231
+ """
232
+ Save generated questions to a JSON file.
233
+
234
+ Args:
235
+ questions_data (dict): Generated questions data
236
+ output_file (str): Output file path
237
+ """
238
+ try:
239
+ with open(output_file, 'w', encoding='utf-8') as file:
240
+ json.dump(questions_data, file, indent=2, ensure_ascii=False)
241
+ print(f"✅ Questions saved to {output_file}")
242
+ except Exception as e:
243
+ print(f"❌ Error saving to file: {e}")
244
+
245
+ def display_questions_console(self, questions_data):
246
+ """
247
+ Display generated questions in a formatted console output.
248
+
249
+ Args:
250
+ questions_data (dict): Generated questions data
251
+ """
252
+ print("\n" + "="*80)
253
+ print("GENERATED EXAM QUESTIONS")
254
+ print("="*80)
255
+
256
+ # Display metadata
257
+ metadata = questions_data['metadata']
258
+ print(f"\n📊 STATISTICS:")
259
+ print(f" • Input text: {metadata['input_word_count']} words, {metadata['input_sentence_count']} sentences")
260
+ print(f" • Keywords extracted: {metadata['keywords_extracted']}")
261
+ print(f" • Named entities found: {metadata['named_entities']}")
262
+ print(f" • Questions generated: {metadata['questions_generated']}")
263
+
264
+ # Display top keywords
265
+ print(f"\n🔑 TOP KEYWORDS:")
266
+ for score, keyword in questions_data['keywords'][:5]:
267
+ print(f" • {keyword} (score: {score:.2f})")
268
+
269
+ # Display questions
270
+ print(f"\n❓ QUESTIONS:")
271
+ for i, q in enumerate(questions_data['questions'], 1):
272
+ print(f"\n{i}. {q['question']}")
273
+
274
+ if 'options' in q:
275
+ print(" Options:")
276
+ for j, option in enumerate(q['options'], 1):
277
+ marker = "✓" if j-1 == q['correct_index'] else " "
278
+ print(f" {marker} {chr(64+j)}. {option}")
279
+
280
+ print(f" Context: {q['context'][:100]}...")
281
+ print(f" Confidence: {q['score']:.2f}")
282
+
283
+ print("\n" + "="*80)
284
+
285
+ def _generate_syllabus_based_questions(self, content_text, syllabus_text, max_questions=10, include_mcq=True):
286
+ """
287
+ Generate questions based on syllabus topics.
288
+
289
+ Args:
290
+ content_text (str): The content text to generate questions from
291
+ syllabus_text (str): The syllabus text with units and topics
292
+ max_questions (int): Maximum number of questions to generate
293
+ include_mcq (bool): Whether to include multiple choice options
294
+
295
+ Returns:
296
+ dict: Generated questions and metadata
297
+ """
298
+ print("Generating syllabus-based questions...")
299
+
300
+ try:
301
+ # Generate questions by topic
302
+ questions_by_topic = self.syllabus_processor.generate_topic_based_questions(
303
+ syllabus_text=syllabus_text,
304
+ content_text=content_text,
305
+ questions_per_topic=3 # Will be adjusted based on max_questions
306
+ )
307
+
308
+ # Flatten questions from all topics
309
+ all_questions = []
310
+ for topic, questions in questions_by_topic.items():
311
+ for q in questions:
312
+ q['topic'] = topic
313
+ all_questions.append(q)
314
+
315
+ # Limit to max_questions
316
+ all_questions = all_questions[:max_questions]
317
+
318
+ # Generate options for MCQs if needed
319
+ if include_mcq:
320
+ for question in all_questions:
321
+ if 'options' not in question and 'context' in question:
322
+ try:
323
+ mcq_data = self.option_generator.create_mcq_options(
324
+ question['question'],
325
+ question['context'],
326
+ num_options=4
327
+ )
328
+ if mcq_data and 'options' in mcq_data and len(mcq_data['options']) >= 2:
329
+ question.update(mcq_data)
330
+ except Exception as e:
331
+ print(f"Error generating options: {e}")
332
+
333
+ # Prepare results
334
+ results = {
335
+ 'metadata': {
336
+ 'total_questions': len(all_questions),
337
+ 'topics_covered': list(questions_by_topic.keys()),
338
+ 'generated_at': str(datetime.now())
339
+ },
340
+ 'questions': all_questions
341
+ }
342
+
343
+ return results
344
+
345
+ except Exception as e:
346
+ print(f"Error in syllabus-based question generation: {e}")
347
+ raise
348
+
349
+ # Example usage and testing
350
+ if __name__ == "__main__":
351
+ # Sample text for testing
352
+ sample_text = """
353
+ Artificial Intelligence (AI) is a branch of computer science that aims to create intelligent machines
354
+ that work and react like humans. Machine learning is a subset of AI that provides systems the ability
355
+ to automatically learn and improve from experience without being explicitly programmed. Deep learning
356
+ is a subset of machine learning that uses neural networks with three or more layers. These neural
357
+ networks attempt to simulate the behavior of the human brain to learn from large amounts of data.
358
+ Python is one of the most popular programming languages for AI development due to its simplicity
359
+ and extensive libraries like TensorFlow and PyTorch.
360
+ """
361
+
362
+ try:
363
+ # Initialize system
364
+ system = ExamQuestionSystem()
365
+
366
+ # Generate questions
367
+ results = system.generate_exam_questions(sample_text, max_questions=3)
368
+
369
+ # Display results
370
+ system.display_questions_console(results)
371
+
372
+ # Save to JSON
373
+ system.save_questions_to_json(results, "sample_questions.json")
374
+
375
+ except Exception as e:
376
+ print(f"❌ Error: {e}")
generated_questions.json ADDED
@@ -0,0 +1,22 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "metadata": {
3
+ "input_word_count": 1,
4
+ "input_sentence_count": 0,
5
+ "questions_generated": 0,
6
+ "keywords_extracted": 1,
7
+ "named_entities": 1
8
+ },
9
+ "keywords": [
10
+ [
11
+ 1.0,
12
+ "text"
13
+ ]
14
+ ],
15
+ "named_entities": [
16
+ [
17
+ "Your",
18
+ 1
19
+ ]
20
+ ],
21
+ "questions": []
22
+ }
keyword_extractor.py ADDED
@@ -0,0 +1,138 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import nltk
2
+ from rake_nltk import Rake
3
+ from collections import Counter
4
+ import re
5
+
6
+ class KeywordExtractor:
7
+ def __init__(self):
8
+ """Initialize the keyword extractor."""
9
+ self.rake = Rake()
10
+
11
+ def extract_keywords_rake(self, text, max_keywords=10):
12
+ """
13
+ Extract keywords using RAKE algorithm.
14
+
15
+ Args:
16
+ text (str): Input text
17
+ max_keywords (int): Maximum number of keywords to extract
18
+
19
+ Returns:
20
+ list: List of keywords with scores
21
+ """
22
+ self.rake.extract_keywords_from_text(text)
23
+ keywords_with_scores = self.rake.get_ranked_phrases_with_scores()
24
+
25
+ # Filter keywords
26
+ clean_keywords = []
27
+ seen_keywords = set()
28
+
29
+ for score, keyword in keywords_with_scores:
30
+ # Remove keywords with digits or special chars
31
+ if re.search(r'\d', keyword) or len(keyword) < 4:
32
+ continue
33
+
34
+ # Remove very short single words that are lowercase (likely noise)
35
+ if ' ' not in keyword and keyword[0].islower() and len(keyword) < 5:
36
+ continue
37
+
38
+ # Remove duplicates
39
+ if keyword.lower() in seen_keywords:
40
+ continue
41
+
42
+ clean_keywords.append((score, keyword))
43
+ seen_keywords.add(keyword.lower())
44
+
45
+ if len(clean_keywords) >= max_keywords:
46
+ break
47
+
48
+ return clean_keywords
49
+
50
+ def extract_named_entities(self, text):
51
+ """
52
+ Extract named entities (simple approach using capitalization patterns).
53
+
54
+ Args:
55
+ text (str): Input text
56
+
57
+ Returns:
58
+ list: List of potential named entities
59
+ """
60
+ # Simple named entity extraction based on capitalization
61
+ words = text.split()
62
+ entities = []
63
+
64
+ for word in words:
65
+ # Look for capitalized words that aren't at sentence start
66
+ if word[0].isupper() and len(word) > 2:
67
+ # Remove punctuation
68
+ clean_word = re.sub(r'[^\w]', '', word)
69
+ if clean_word and clean_word not in ['The', 'This', 'That', 'These', 'Those']:
70
+ entities.append(clean_word)
71
+
72
+ # Count occurrences and return most frequent
73
+ entity_counts = Counter(entities)
74
+ return entity_counts.most_common(10)
75
+
76
+ def identify_important_sentences(self, sentences, keywords, top_n=5):
77
+ """
78
+ Identify important sentences based on keyword density.
79
+
80
+ Args:
81
+ sentences (list): List of sentences
82
+ keywords (list): List of important keywords
83
+ top_n (int): Number of top sentences to return
84
+
85
+ Returns:
86
+ list: List of important sentences with scores
87
+ """
88
+ keyword_phrases = [kw[1] for kw in keywords] # Extract phrases from (score, phrase) tuples
89
+ sentence_scores = []
90
+
91
+ for sentence in sentences:
92
+ score = 0
93
+ sentence_lower = sentence.lower()
94
+ best_keyword = ""
95
+
96
+ # Score based on keyword presence
97
+ for keyword in keyword_phrases:
98
+ if keyword.lower() in sentence_lower:
99
+ score += 1
100
+ if not best_keyword or len(keyword) > len(best_keyword):
101
+ best_keyword = keyword
102
+
103
+ # Bonus for sentence length (not too short, not too long)
104
+ word_count = len(sentence.split())
105
+ if 8 <= word_count <= 25:
106
+ score += 0.5
107
+
108
+ # Bonus for sentences with numbers or specific terms
109
+ if re.search(r'\d+', sentence):
110
+ score += 0.3
111
+
112
+ if score > 0:
113
+ sentence_scores.append((score, sentence, best_keyword))
114
+
115
+ # Sort by score and return top sentences
116
+ sentence_scores.sort(key=lambda x: x[0], reverse=True)
117
+ return sentence_scores[:top_n]
118
+
119
+ def extract_key_concepts(self, text, sentences, top_n_sentences=5):
120
+ """
121
+ Complete keyword and concept extraction pipeline.
122
+
123
+ Args:
124
+ text (str): Input text
125
+ sentences (list): List of sentences
126
+
127
+ Returns:
128
+ dict: Extracted keywords, entities, and important sentences
129
+ """
130
+ keywords = self.extract_keywords_rake(text)
131
+ entities = self.extract_named_entities(text)
132
+ important_sentences = self.identify_important_sentences(sentences, keywords, top_n=top_n_sentences)
133
+
134
+ return {
135
+ 'keywords': keywords,
136
+ 'named_entities': entities,
137
+ 'important_sentences': important_sentences
138
+ }
local_question_generator.py ADDED
@@ -0,0 +1,69 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ from transformers import pipeline, AutoTokenizer, AutoModelForSeq2SeqLM
2
+ import torch
3
+
4
+ class LocalQuestionGenerator:
5
+ def __init__(self):
6
+ print("Loading local question generation model...")
7
+ self.device = 0 if torch.cuda.is_available() else -1 # Use GPU if available
8
+
9
+ # Load the model and tokenizer
10
+ model_name = "valhalla/t5-base-qa-qg-hl"
11
+ self.tokenizer = AutoTokenizer.from_pretrained(model_name)
12
+ self.model = AutoModelForSeq2SeqLM.from_pretrained(model_name)
13
+
14
+ # Initialize the pipeline
15
+ self.generator = pipeline(
16
+ "text2text-generation",
17
+ model=self.model,
18
+ tokenizer=self.tokenizer,
19
+ device=self.device
20
+ )
21
+ print("Model loaded successfully!")
22
+
23
+ def generate_questions(self, text, num_questions=5, max_length=64):
24
+ """Generate questions from the given text."""
25
+ if not text.strip():
26
+ return []
27
+
28
+ try:
29
+ # Prepare the input text
30
+ input_text = f"generate questions: {text}"
31
+
32
+ # Generate questions
33
+ results = self.generator(
34
+ input_text,
35
+ max_length=max_length,
36
+ num_return_sequences=num_questions,
37
+ num_beams=5,
38
+ early_stopping=True
39
+ )
40
+
41
+ # Extract and clean the generated questions
42
+ questions = [result['generated_text'].strip() for result in results]
43
+ return questions
44
+
45
+ except Exception as e:
46
+ print(f"Error generating questions: {str(e)}")
47
+ return []
48
+
49
+ # Example usage
50
+ if __name__ == "__main__":
51
+ # Initialize the generator
52
+ qg = LocalQuestionGenerator()
53
+
54
+ # Sample text
55
+ sample_text = """
56
+ Machine learning is a branch of artificial intelligence that focuses on building systems
57
+ that learn from data. These systems can improve their performance over time without being
58
+ explicitly programmed. There are three main types of machine learning: supervised learning,
59
+ unsupervised learning, and reinforcement learning.
60
+ """
61
+
62
+ # Generate questions
63
+ print("\nGenerating questions...")
64
+ questions = qg.generate_questions(sample_text, num_questions=3)
65
+
66
+ # Print the results
67
+ print("\nGenerated Questions:")
68
+ for i, q in enumerate(questions, 1):
69
+ print(f"{i}. {q}")
nltk_install.py ADDED
@@ -0,0 +1,69 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import os
2
+ import nltk
3
+ import sys
4
+
5
+ def setup_nltk():
6
+ # Set NLTK data directory
7
+ nltk_dir = os.path.join(os.path.expanduser('~'), 'nltk_data')
8
+ os.makedirs(nltk_dir, exist_ok=True)
9
+ nltk.data.path.append(nltk_dir)
10
+
11
+ print(f"NLTK data directory: {nltk_dir}")
12
+
13
+ # List of required NLTK packages
14
+ packages = [
15
+ 'punkt',
16
+ 'stopwords',
17
+ 'averaged_perceptron_tagger',
18
+ 'wordnet',
19
+ 'omw-1.4'
20
+ ]
21
+
22
+ # Download each package
23
+ for package in packages:
24
+ print(f"\nDownloading {package}...")
25
+ try:
26
+ nltk.download(package, download_dir=nltk_dir, quiet=False)
27
+ print(f"✓ {package} downloaded successfully")
28
+ except Exception as e:
29
+ print(f"✗ Error downloading {package}: {str(e)}")
30
+
31
+ # Verify installation
32
+ print("\n=== Verifying NLTK Installation ===")
33
+ try:
34
+ from nltk.tokenize import word_tokenize, sent_tokenize
35
+ from nltk import pos_tag
36
+ from nltk.corpus import stopwords
37
+
38
+ test_text = "NLTK is working correctly if you can read this."
39
+
40
+ # Test tokenization
41
+ print("Testing tokenization...")
42
+ words = word_tokenize(test_text)
43
+ print(f"Word tokens: {words}")
44
+
45
+ # Test sentence tokenization
46
+ sentences = sent_tokenize(test_text)
47
+ print(f"Sentences: {sentences}")
48
+
49
+ # Test POS tagging
50
+ print("\nTesting POS tagging...")
51
+ tags = pos_tag(words)
52
+ print(f"POS tags: {tags}")
53
+
54
+ # Test stopwords
55
+ print("\nTesting stopwords...")
56
+ stop_words = stopwords.words('english')
57
+ print(f"Sample stopwords: {stop_words[:5]}...")
58
+
59
+ print("\n✅ NLTK is working correctly!")
60
+
61
+ except Exception as e:
62
+ print(f"\n❌ Error verifying NLTK: {str(e)}")
63
+ print("\nPlease try running these commands manually:")
64
+ print("import nltk")
65
+ for package in packages:
66
+ print(f"nltk.download('{package}')")
67
+
68
+ if __name__ == "__main__":
69
+ setup_nltk()
nltk_setup.py ADDED
@@ -0,0 +1,56 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import nltk
2
+ import os
3
+
4
+ def setup_nltk():
5
+ try:
6
+ # Set NLTK data path to a local directory
7
+ nltk_data = os.path.join(os.getcwd(), 'nltk_data')
8
+ os.makedirs(nltk_data, exist_ok=True)
9
+ nltk.data.path.append(nltk_data)
10
+
11
+ # List of NLTK packages to download
12
+ packages = [
13
+ ('punkt', 'tokenizers/punkt'),
14
+ ('stopwords', 'corpora/stopwords'),
15
+ ('averaged_perceptron_tagger', 'taggers/averaged_perceptron_tagger'),
16
+ ('averaged_perceptron_tagger_eng', 'taggers/averaged_perceptron_tagger_eng'),
17
+ ('wordnet', 'corpora/wordnet'),
18
+ ('omw-1.4', 'corpora/omw-1.4')
19
+ ]
20
+
21
+ print("\n=== Setting up NLTK data ===")
22
+
23
+ # Download each package
24
+ for package, path in packages:
25
+ try:
26
+ nltk.data.find(path)
27
+ print(f"✓ {package} is already available")
28
+ except LookupError:
29
+ print(f"Downloading {package}...")
30
+ nltk.download(package, download_dir=nltk_data)
31
+ print(f"✓ Downloaded {package}")
32
+
33
+ # Test NLTK components
34
+ print("\n=== Testing NLTK Components ===")
35
+ from nltk.tokenize import sent_tokenize, word_tokenize
36
+ from nltk.tag import pos_tag
37
+ from nltk.corpus import stopwords
38
+
39
+ sent_tokenize("This is a test.")
40
+ word_tokenize("This is a test.")
41
+ pos_tag(["test", "this", "is", "a", "sentence"])
42
+ stopwords.words('english')
43
+
44
+ print("\n=== NLTK Setup Completed Successfully ===\n")
45
+ return True
46
+
47
+ except Exception as e:
48
+ print(f"\n⚠ Error during NLTK setup: {str(e)}")
49
+ print("\nPlease try running these commands manually in a Python shell:")
50
+ print("import nltk")
51
+ for package, _ in packages:
52
+ print(f"nltk.download('{package}')")
53
+ return False
54
+
55
+ if __name__ == "__main__":
56
+ setup_nltk()
option_generator.py ADDED
@@ -0,0 +1,272 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import random
2
+ import nltk
3
+ from nltk.corpus import wordnet
4
+ from nltk.tokenize import word_tokenize
5
+ from nltk.tag import pos_tag
6
+
7
+ class OptionGenerator:
8
+ def __init__(self):
9
+ """Initialize the option generator with NLTK resources."""
10
+ try:
11
+ # Download required NLTK data with explicit resource names
12
+ nltk.download('punkt', quiet=True)
13
+ nltk.download('averaged_perceptron_tagger', quiet=True)
14
+ nltk.download('wordnet', quiet=True)
15
+ nltk.download('stopwords', quiet=True)
16
+ nltk.download('universal_tagset', quiet=True)
17
+ nltk.download('tagsets', quiet=True)
18
+
19
+ self.stop_words = set(nltk.corpus.stopwords.words('english'))
20
+ self.word_net_lemmatizer = nltk.WordNetLemmatizer()
21
+
22
+ # POS tag mapping for WordNet
23
+ self.pos_mapping = {
24
+ 'NN': 'n', 'NNS': 'n', 'NNP': 'n', 'NNPS': 'n',
25
+ 'VB': 'v', 'VBD': 'v', 'VBG': 'v', 'VBN': 'v', 'VBP': 'v', 'VBZ': 'v',
26
+ 'JJ': 'a', 'JJR': 'a', 'JJS': 'a',
27
+ 'RB': 'r', 'RBR': 'r', 'RBS': 'r'
28
+ }
29
+
30
+ except Exception as e:
31
+ print(f"Error initializing OptionGenerator: {str(e)}")
32
+ raise
33
+
34
+ def _get_synonyms(self, word, pos=None):
35
+ """Get synonyms for a word using WordNet."""
36
+ synonyms = set()
37
+
38
+ # Skip if word is too short or a stop word
39
+ if len(word) < 3 or word.lower() in self.stop_words:
40
+ return []
41
+
42
+ try:
43
+ wordnet_pos = self.pos_mapping.get(pos, None) if pos else None
44
+
45
+ # Try with the provided POS tag first
46
+ if wordnet_pos:
47
+ for syn in wordnet.synsets(word, pos=wordnet_pos):
48
+ for lemma in syn.lemmas():
49
+ synonym = lemma.name().replace('_', ' ').lower()
50
+ if synonym != word and len(synonym.split()) == 1:
51
+ synonyms.add(synonym)
52
+
53
+ # If no synonyms found, try without POS tag
54
+ if not synonyms:
55
+ for syn in wordnet.synsets(word):
56
+ for lemma in syn.lemmas():
57
+ synonym = lemma.name().replace('_', ' ').lower()
58
+ if synonym != word and len(synonym.split()) == 1:
59
+ synonyms.add(synonym)
60
+
61
+ # If still no synonyms, try with lemmatization
62
+ if not synonyms and pos and pos.startswith('VB'):
63
+ lemma = self.word_net_lemmatizer.lemmatize(word, pos='v')
64
+ if lemma != word:
65
+ for syn in wordnet.synsets(lemma, pos='v'):
66
+ for l in syn.lemmas():
67
+ synonym = l.name().replace('_', ' ').lower()
68
+ if synonym != word and len(synonym.split()) == 1:
69
+ synonyms.add(synonym)
70
+
71
+ except Exception as e:
72
+ print(f"Error getting synonyms for '{word}': {str(e)}")
73
+
74
+ return list(synonyms)[:10] # Return at most 10 synonyms
75
+
76
+ def _get_distractors(self, word, pos=None, num=3):
77
+ """Generate distractors for a given word."""
78
+ distractors = set()
79
+
80
+ try:
81
+ # Get synonyms first
82
+ synonyms = self._get_synonyms(word, pos)
83
+ distractors.update(synonyms[:num])
84
+
85
+ # If not enough synonyms, add similar words
86
+ if len(distractors) < num:
87
+ wordnet_pos = self.pos_mapping.get(pos, None) if pos else None
88
+ similar_words = []
89
+
90
+ for syn in wordnet.synsets(word, pos=wordnet_pos):
91
+ for lemma in syn.lemmas():
92
+ if lemma.name() != word:
93
+ similar_words.append(lemma.name().replace('_', ' ').lower())
94
+
95
+ # Add similar words that aren't already in distractors
96
+ for w in similar_words:
97
+ if w not in distractors and w != word:
98
+ distractors.add(w)
99
+ if len(distractors) >= num:
100
+ break
101
+ except Exception as e:
102
+ print(f"Error generating distractors for '{word}': {str(e)}")
103
+
104
+ return list(distractors)[:num]
105
+
106
+ def extract_answer_from_context(self, question, context):
107
+ """
108
+ Extract the most likely answer from the context based on the question.
109
+ This version uses simple string matching instead of POS tagging.
110
+
111
+ Args:
112
+ question (str): Generated question
113
+ context (str): Source sentence/context
114
+
115
+ Returns:
116
+ str: Extracted answer
117
+ """
118
+ try:
119
+ q_lower = question.lower()
120
+ context_lower = context.lower()
121
+
122
+ # Common patterns for answers
123
+ patterns = [
124
+ ('what is', 'is'),
125
+ ('what are', 'are'),
126
+ ('what was', 'was'),
127
+ ('what were', 'were'),
128
+ ('who is', 'is'),
129
+ ('who are', 'are'),
130
+ ('who was', 'was'),
131
+ ('who were', 'were'),
132
+ ('where is', 'is'),
133
+ ('where are', 'are'),
134
+ ('when is', 'is'),
135
+ ('when was', 'was')
136
+ ]
137
+
138
+ # Try to find a direct answer using common patterns
139
+ for q_pattern, verb in patterns:
140
+ if q_lower.startswith(q_pattern):
141
+ # Look for the pattern "[verb] [answer]" in the context
142
+ verb_pos = context_lower.find(verb)
143
+ if verb_pos != -1:
144
+ # Get the text after the verb
145
+ answer_part = context[verb_pos + len(verb):].strip(' ,.?!')
146
+ # Return the first word or phrase
147
+ return answer_part.split(',')[0].split('.')[0].strip()
148
+
149
+ # Fallback: return the first proper noun or capitalized word not in the question
150
+ words = context.split()
151
+ for word in words:
152
+ # Skip short words and words that are in the question
153
+ if (len(word) > 2 and word[0].isupper() and
154
+ word.lower() not in q_lower and
155
+ word.lower() not in self.stop_words):
156
+ return word.strip(',.!?;:')
157
+
158
+ # Last resort: return the first noun-like word
159
+ for word in words:
160
+ if len(word) > 3 and word.lower() not in q_lower and word.lower() not in self.stop_words:
161
+ return word.strip(',.!?;:')
162
+
163
+ # If all else fails, return the first word that's not a stop word
164
+ for word in words:
165
+ if word.lower() not in self.stop_words and len(word) > 2:
166
+ return word.strip(',.!?;:')
167
+
168
+ # Final fallback
169
+ return context.split()[0] if context else "Unknown"
170
+
171
+ except Exception as e:
172
+ print(f"Error extracting answer: {str(e)}")
173
+ # Return the first word as fallback
174
+ return context.split()[0] if context else "Unknown"
175
+
176
+ def create_mcq_options(self, question, context, num_options=4, correct_answer=None, global_keywords=None):
177
+ """
178
+ Create multiple choice options for a given question and context.
179
+
180
+ Args:
181
+ question (str): The question text
182
+ context (str): The context from which the question was generated
183
+ num_options (int): Number of options to generate (including correct answer)
184
+ correct_answer (str, optional): The correct answer if known
185
+ global_keywords (list, optional): List of keywords from the entire document to use as distractors
186
+
187
+ Returns:
188
+ dict: Dictionary containing options and correct index
189
+ """
190
+ try:
191
+ # Extract the correct answer from context if not provided
192
+ if not correct_answer:
193
+ correct_answer = self.extract_answer_from_context(question, context)
194
+
195
+ # If we couldn't extract a good answer, use a fallback
196
+ if not correct_answer or correct_answer == "Unknown":
197
+ return {
198
+ 'options': ['Option A', 'Option B', 'Option C', 'Option D'],
199
+ 'correct_index': 0,
200
+ 'correct_answer': 'Option A'
201
+ }
202
+
203
+ # Generate distractors
204
+ distractors = self._get_distractors(
205
+ correct_answer,
206
+ num=min(10, num_options * 2) # Generate more than needed to filter
207
+ )
208
+
209
+ # Ensure we have unique distractors
210
+ distractors = list(set(d for d in distractors if d.lower() != correct_answer.lower()))
211
+
212
+ # If we don't have enough distractors, try using global keywords
213
+ if len(distractors) < num_options - 1 and global_keywords:
214
+ # Filter keywords to ensure they are not the correct answer
215
+ potential_distractors = [k for k in global_keywords if k.lower() != correct_answer.lower()]
216
+ # Shuffle to get random ones
217
+ random.shuffle(potential_distractors)
218
+
219
+ for kw in potential_distractors:
220
+ if kw not in distractors:
221
+ distractors.append(kw)
222
+ if len(distractors) >= num_options + 2: # Get a few extra
223
+ break
224
+
225
+ # If we still don't have enough distractors, add some generic ones
226
+ generic_distractors = [
227
+ 'True', 'False', 'Yes', 'No', 'Maybe', 'Always', 'Never',
228
+ 'Sometimes', 'Often', 'Rarely', 'All of the above', 'None of the above'
229
+ ]
230
+
231
+ while len(distractors) < num_options - 1 and generic_distractors:
232
+ distractor = generic_distractors.pop(0)
233
+ if distractor.lower() != correct_answer.lower() and distractor not in distractors:
234
+ distractors.append(distractor)
235
+
236
+ # Select the final set of options
237
+ options = [correct_answer] + distractors[:(num_options-1)]
238
+ random.shuffle(options)
239
+
240
+ # Find the index of the correct answer
241
+ correct_index = options.index(correct_answer) if correct_answer in options else 0
242
+
243
+ return {
244
+ 'options': options,
245
+ 'correct_index': correct_index,
246
+ 'correct_answer': correct_answer
247
+ }
248
+
249
+ except Exception as e:
250
+ print(f"Error generating options: {str(e)}")
251
+ # Fallback options
252
+ return {
253
+ 'options': ['Option A', 'Option B', 'Option C', 'Option D'],
254
+ 'correct_index': 0,
255
+ 'correct_answer': 'Option A'
256
+ }
257
+
258
+ # Example usage
259
+ if __name__ == "__main__":
260
+ og = OptionGenerator()
261
+
262
+ test_question = "What is the capital of France?"
263
+ test_context = "Paris is the capital of France, known for its art, fashion, and culture."
264
+
265
+ print(f"Question: {test_question}")
266
+ print(f"Context: {test_context}")
267
+
268
+ mcq = og.create_mcq_options(test_question, test_context)
269
+ print("\nOptions:")
270
+ for i, option in enumerate(mcq['options']):
271
+ marker = "✓" if i == mcq['correct_index'] else " "
272
+ print(f"{marker} {chr(65+i)}. {option}")
question_generator.py ADDED
@@ -0,0 +1,392 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import re
2
+ import nltk
3
+ import logging
4
+ from nltk.tokenize import sent_tokenize, word_tokenize
5
+ from nltk.corpus import stopwords
6
+ from nltk.tag import pos_tag
7
+ import torch
8
+ from transformers import pipeline
9
+
10
+ # Configure logging
11
+ logging.basicConfig(level=logging.INFO)
12
+ logger = logging.getLogger(__name__)
13
+
14
+ # NLTK data setup
15
+ def setup_nltk():
16
+ """Download required NLTK data."""
17
+ try:
18
+ nltk.data.find('tokenizers/punkt')
19
+ nltk.data.find('corpora/stopwords')
20
+ nltk.data.find('taggers/averaged_perceptron_tagger')
21
+ nltk.data.find('corpora/wordnet')
22
+ nltk.data.find('corpora/omw-1.4')
23
+ logger.info("NLTK data is already set up.")
24
+ return True
25
+ except LookupError:
26
+ logger.info("Downloading required NLTK data...")
27
+ try:
28
+ nltk.download('punkt', quiet=True)
29
+ nltk.download('stopwords', quiet=True)
30
+ nltk.download('averaged_perceptron_tagger', quiet=True)
31
+ nltk.download('wordnet', quiet=True)
32
+ nltk.download('omw-1.4', quiet=True)
33
+ logger.info("NLTK data downloaded successfully.")
34
+ return True
35
+ except Exception as e:
36
+ logger.error(f"Error downloading NLTK data: {str(e)}")
37
+ return False
38
+
39
+ # Initialize NLTK
40
+ if not setup_nltk():
41
+ logger.warning("NLTK data not available. Some features may not work properly.")
42
+
43
+ class QuestionGenerator:
44
+ def __init__(self, model_name="valhalla/t5-small-qa-qg-hl", use_transformers=False):
45
+ """Initialize the question generator with enhanced capabilities."""
46
+ self.use_transformers = use_transformers
47
+ self.stop_words = set(stopwords.words('english'))
48
+ self.device = 'cuda' if torch.cuda.is_available() else 'cpu'
49
+
50
+ # Initialize rule-based system
51
+ self._init_rule_based_system()
52
+
53
+ # Initialize transformer model if requested
54
+ if use_transformers:
55
+ try:
56
+ logger.info("Loading transformer model...")
57
+ self.qg_model = pipeline(
58
+ "text2text-generation",
59
+ model=model_name,
60
+ device=0 if self.device == 'cuda' else -1
61
+ )
62
+ logger.info("Transformer model loaded successfully.")
63
+ except Exception as e:
64
+ logger.error(f"Error loading transformer model: {str(e)}")
65
+ self.use_transformers = False
66
+ logger.info("Falling back to rule-based generation.")
67
+
68
+ def _init_rule_based_system(self):
69
+ """Initialize the rule-based question generation system."""
70
+ self.wh_words = ['what', 'when', 'where', 'who', 'whom', 'whose', 'which', 'why', 'how']
71
+ self.aux_verbs = ['is', 'are', 'was', 'were', 'do', 'does', 'did', 'have', 'has', 'had',
72
+ 'can', 'could', 'will', 'would', 'shall', 'should', 'may', 'might', 'must']
73
+ self.common_nouns = {'time', 'year', 'people', 'way', 'day', 'man', 'thing', 'woman', 'life', 'child',
74
+ 'world', 'school', 'state', 'family', 'student', 'group', 'country', 'problem'}
75
+
76
+ def _is_good_sentence(self, sentence):
77
+ """Check if a sentence is suitable for question generation."""
78
+ try:
79
+ if not sentence or not isinstance(sentence, str):
80
+ return False
81
+
82
+ # Basic length checks
83
+ words = word_tokenize(sentence)
84
+ if len(words) < 4: # At least 4 words
85
+ return False
86
+
87
+ # Check for question mark
88
+ if '?' in sentence:
89
+ return False
90
+
91
+ # Check for proper sentence ending
92
+ if not sentence.strip().endswith(('.', '!', ';', ':')):
93
+ return False
94
+
95
+ # Check for at least one noun and one verb
96
+ pos_tags = pos_tag(words)
97
+ has_noun = any(tag.startswith('NN') for word, tag in pos_tags)
98
+ has_verb = any(tag.startswith('VB') for word, tag in pos_tags)
99
+
100
+ return has_noun and has_verb
101
+
102
+ except Exception as e:
103
+ logger.error(f"Error in _is_good_sentence: {str(e)}")
104
+ return False
105
+
106
+ def _generate_question_what_is(self, words, pos_tags):
107
+ """Generate 'What is...?' questions."""
108
+ for i, (word, tag) in enumerate(pos_tags):
109
+ if tag.startswith('NN'):
110
+ return f"What is {word}?"
111
+ return ""
112
+
113
+ def _generate_question_verb_subject(self, words, pos_tags):
114
+ """Generate questions by inverting subject and verb."""
115
+ for i, (word, tag) in enumerate(pos_tags):
116
+ if tag.startswith('VB') and i > 0:
117
+ subject = ' '.join(words[:i])
118
+ verb = word
119
+ rest = ' '.join(words[i+1:])
120
+ return f"{verb.capitalize()} {subject} {rest}?"
121
+ return ""
122
+
123
+ def _generate_question_wh_word(self, words, pos_tags):
124
+ """Generate questions using WH-words."""
125
+ for i, (word, tag) in enumerate(pos_tags):
126
+ if tag.startswith('VB') and i > 0:
127
+ wh_word = "What"
128
+ if i > 0 and pos_tags[i-1][1].startswith('NNP'):
129
+ wh_word = "Who"
130
+ return f"{wh_word} {word} {' '.join(words[:i])}?"
131
+ return ""
132
+
133
+ def _generate_question_from_statement(self, sentence):
134
+ """Generate a question from a statement using multiple strategies."""
135
+ try:
136
+ if not sentence or not isinstance(sentence, str):
137
+ return ""
138
+
139
+ # Clean the sentence
140
+ sentence = sentence.strip()
141
+ if sentence.endswith('.'):
142
+ sentence = sentence[:-1].strip()
143
+
144
+ words = word_tokenize(sentence)
145
+ if len(words) < 4: # Too short for a good question
146
+ return ""
147
+
148
+ pos_tags = pos_tag(words)
149
+
150
+ # Try different question generation strategies
151
+ strategies = [
152
+ self._generate_question_what_is,
153
+ self._generate_question_verb_subject,
154
+ self._generate_question_wh_word
155
+ ]
156
+
157
+ for strategy in strategies:
158
+ question = strategy(words, pos_tags)
159
+ if question:
160
+ return question
161
+
162
+ # Fallback: ask about the whole sentence
163
+ return f"Can you explain: {sentence[:100]}...?"
164
+
165
+ except Exception as e:
166
+ logger.error(f"Error in _generate_question_from_statement: {str(e)}")
167
+ return ""
168
+
169
+ def generate_question_from_sentence(self, sentence):
170
+ """Generate a question from a given sentence."""
171
+ if not self._is_good_sentence(sentence):
172
+ return ""
173
+
174
+ try:
175
+ # Use transformer model if available
176
+ if self.use_transformers and hasattr(self, 'qg_model'):
177
+ try:
178
+ # Prepare input for e2e model
179
+ input_text = f"generate questions: {sentence}"
180
+ outputs = self.qg_model(input_text)
181
+ if outputs and len(outputs) > 0:
182
+ generated_text = outputs[0]['generated_text']
183
+ # The model might generate multiple questions separated by <sep>
184
+ questions = generated_text.split('<sep>')
185
+ if questions:
186
+ return questions[0].strip()
187
+ except Exception as e:
188
+ logger.error(f"Transformer generation failed: {e}")
189
+ # Fallback to rule-based
190
+
191
+ # First try rule-based generation
192
+ question = self._generate_question_from_statement(sentence)
193
+ if question:
194
+ return question
195
+
196
+ # Fallback to simple question generation
197
+ words = word_tokenize(sentence)
198
+ if len(words) < 4:
199
+ return ""
200
+
201
+ # Try to make a simple question
202
+ return f"What is the main point about: {sentence[:100]}...?"
203
+
204
+ except Exception as e:
205
+ logger.error(f"Error generating question: {str(e)}")
206
+ return ""
207
+
208
+ def _score_sentence(self, sentence):
209
+ """Score a sentence based on its quality for question generation."""
210
+ try:
211
+ if not self._is_good_sentence(sentence):
212
+ return 0
213
+
214
+ words = word_tokenize(sentence)
215
+ pos_tags = pos_tag(words)
216
+
217
+ # Start with base score
218
+ score = 1.0
219
+
220
+ # Check for content words
221
+ has_noun = any(tag.startswith('NN') for _, tag in pos_tags)
222
+ has_verb = any(tag.startswith('VB') for _, tag in pos_tags)
223
+ has_adj = any(tag.startswith('JJ') for _, tag in pos_tags)
224
+
225
+ # Increase score based on content
226
+ if has_noun and has_verb:
227
+ score += 2.0
228
+ elif has_noun or has_verb:
229
+ score += 1.0
230
+
231
+ if has_adj:
232
+ score += 0.5
233
+
234
+ # Adjust for sentence length
235
+ word_count = len(words)
236
+ if 8 <= word_count <= 25: # Ideal length
237
+ score += 1.0
238
+
239
+ # Bonus for proper nouns or numbers
240
+ if any(tag in {'NNP', 'NNPS', 'CD'} for _, tag in pos_tags):
241
+ score += 1.0
242
+
243
+ return max(0.5, score) # Ensure minimum score
244
+
245
+ except Exception as e:
246
+ logger.error(f"Error in _score_sentence: {str(e)}")
247
+ return 0.5
248
+
249
+ def generate_questions(self, text, num_questions=5):
250
+ """Generate questions from the given text."""
251
+ if not text or not text.strip():
252
+ logger.warning("Empty text provided for question generation")
253
+ return []
254
+
255
+ try:
256
+ # Split text into sentences
257
+ sentences = sent_tokenize(text)
258
+ return self.generate_multiple_questions(sentences, num_questions)
259
+
260
+ except Exception as e:
261
+ logger.error(f"Error in generate_questions: {str(e)}")
262
+ return []
263
+
264
+ def generate_multiple_questions(self, inputs, max_questions=5):
265
+ """
266
+ Generate multiple questions from a list of inputs (context/answer pairs).
267
+
268
+ Args:
269
+ inputs: List of dicts {'context': str, 'answer': str} or list of strings
270
+ max_questions: Maximum number of questions to generate
271
+
272
+ Returns:
273
+ List of generated questions with metadata
274
+ """
275
+ if not inputs or max_questions <= 0:
276
+ logger.warning("No inputs provided or invalid max_questions")
277
+ return []
278
+
279
+ questions = []
280
+ used_contexts = set()
281
+
282
+ logger.info(f"Generating up to {max_questions} questions from {len(inputs)} inputs")
283
+
284
+ for item in inputs:
285
+ try:
286
+ if len(questions) >= max_questions:
287
+ break
288
+
289
+ # Handle different input types
290
+ if isinstance(item, dict):
291
+ context = item.get('context', '')
292
+ answer = item.get('answer')
293
+ else:
294
+ context = str(item)
295
+ answer = None
296
+
297
+ if not context or not context.strip():
298
+ continue
299
+
300
+ context = context.strip()
301
+
302
+ # Skip if we've already used this context
303
+ if context in used_contexts:
304
+ continue
305
+
306
+ question_text = ""
307
+
308
+ # Use transformer model if available
309
+ if self.use_transformers and hasattr(self, 'qg_model'):
310
+ try:
311
+ if answer:
312
+ input_text = f"answer: {answer} context: {context}"
313
+ else:
314
+ input_text = f"generate questions: {context}"
315
+
316
+ outputs = self.qg_model(input_text)
317
+ if outputs and len(outputs) > 0:
318
+ question_text = outputs[0]['generated_text']
319
+ except Exception as e:
320
+ logger.error(f"Transformer generation failed: {e}")
321
+
322
+ # Fallback to rule-based if transformer failed or not available
323
+ if not question_text:
324
+ question_text = self.generate_question_from_sentence(context)
325
+
326
+ if question_text and question_text not in [q.get('question', '') for q in questions]:
327
+ q_data = {
328
+ 'question': question_text,
329
+ 'context': context,
330
+ 'score': 1.0,
331
+ 'type': 'short_answer'
332
+ }
333
+ # If we have a known answer, use it for options later
334
+ if answer:
335
+ q_data['correct_answer'] = answer
336
+
337
+ questions.append(q_data)
338
+ used_contexts.add(context)
339
+
340
+ except Exception as e:
341
+ logger.error(f"Error processing input: {str(e)}")
342
+ continue
343
+
344
+ # If we still don't have enough questions, create simple ones
345
+ if len(questions) < max_questions:
346
+ logger.info(f"Creating simple questions to reach {max_questions} total")
347
+ for i in range(len(questions), max_questions):
348
+ # Try to find an unused context or reuse one
349
+ fallback_context = "General knowledge about the topic"
350
+ if inputs:
351
+ # Pick a random input to generate a question from
352
+ import random
353
+ item = random.choice(inputs)
354
+ if isinstance(item, dict):
355
+ fallback_context = item.get('context', fallback_context)
356
+ else:
357
+ fallback_context = str(item)
358
+
359
+ # Create a more specific fallback question
360
+ words = fallback_context.split()
361
+ topic_snippet = " ".join(words[:5]) + "..." if len(words) > 5 else fallback_context
362
+
363
+ questions.append({
364
+ 'question': f"Explain the significance of: {topic_snippet}",
365
+ 'context': fallback_context,
366
+ 'score': 0.5,
367
+ 'type': 'short_answer'
368
+ })
369
+
370
+ logger.info(f"Successfully generated {len(questions)} questions")
371
+ return questions[:max_questions]
372
+
373
+ # Example usage
374
+ if __name__ == "__main__":
375
+ # Test the question generator
376
+ qg = QuestionGenerator(use_transformers=False)
377
+
378
+ test_text = """
379
+ Machine learning is a branch of artificial intelligence that focuses on building systems
380
+ that learn from data. These systems can improve their performance over time without being
381
+ explicitly programmed. There are three main types of machine learning: supervised learning,
382
+ unsupervised learning, and reinforcement learning.
383
+ """
384
+
385
+ print("\nGenerating questions...")
386
+ questions = qg.generate_questions(test_text, 3)
387
+
388
+ print("\nGenerated Questions:")
389
+ for i, q in enumerate(questions, 1):
390
+ print(f"{i}. {q.get('question', 'No question generated')}")
391
+ print(f" Context: {q.get('context', 'No context')[:100]}...")
392
+ print()
question_generator_old.py ADDED
@@ -0,0 +1,600 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import re
2
+ import random
3
+ import os
4
+ import sys
5
+ import nltk
6
+ from nltk.tokenize import sent_tokenize, word_tokenize
7
+ from nltk.corpus import stopwords
8
+ from nltk.probability import FreqDist
9
+ from nltk.tag import pos_tag
10
+ from collections import defaultdict
11
+ import torch
12
+ from transformers import pipeline, AutoModelForQuestionAnswering, AutoTokenizer
13
+ import numpy as np
14
+
15
+ # Simple NLTK data setup
16
+ def setup_nltk():
17
+ try:
18
+ # Try to import required NLTK components
19
+ sent_tokenize("Test")
20
+ word_tokenize("Test")
21
+ pos_tag(["test"])
22
+ stopwords.words('english')
23
+ return True
24
+ except LookupError:
25
+ try:
26
+ import nltk
27
+ nltk.download('punkt', quiet=True)
28
+ nltk.download('stopwords', quiet=True)
29
+ nltk.download('averaged_perceptron_tagger', quiet=True)
30
+ nltk.download('wordnet', quiet=True)
31
+ nltk.download('omw-1.4', quiet=True)
32
+ return True
33
+ except:
34
+ return False
35
+
36
+ # Initialize NLTK
37
+ if not setup_nltk():
38
+ print("Warning: Could not initialize NLTK. Some features may not work properly.")
39
+
40
+ # Set up NLTK data path
41
+ def setup_nltk():
42
+ try:
43
+ # Set NLTK data path to a local directory
44
+ nltk_data = os.path.join(os.getcwd(), 'nltk_data')
45
+ os.makedirs(nltk_data, exist_ok=True)
46
+ nltk.data.path.append(nltk_data)
47
+
48
+ # Download required NLTK data
49
+ print("\n=== Downloading NLTK Data ===")
50
+
51
+ # Download punkt tokenizer
52
+ try:
53
+ nltk.data.find('tokenizers/punkt')
54
+ print("✓ punkt tokenizer is already available")
55
+ except LookupError:
56
+ print("Downloading punkt tokenizer...")
57
+ nltk.download('punkt', download_dir=nltk_data)
58
+ print("✓ Downloaded punkt tokenizer")
59
+
60
+ # Download stopwords
61
+ try:
62
+ nltk.data.find('corpora/stopwords')
63
+ print("✓ Stopwords are already available")
64
+ except LookupError:
65
+ print("Downloading stopwords...")
66
+ nltk.download('stopwords', download_dir=nltk_data)
67
+ print("✓ Downloaded stopwords")
68
+
69
+ # Download averaged_perceptron_tagger
70
+ try:
71
+ nltk.data.find('taggers/averaged_perceptron_tagger')
72
+ print("✓ POS tagger is already available")
73
+ except LookupError:
74
+ print("Downloading POS tagger...")
75
+ nltk.download('averaged_perceptron_tagger', download_dir=nltk_data)
76
+ print("✓ Downloaded POS tagger")
77
+
78
+ # Download wordnet
79
+ try:
80
+ nltk.data.find('corpora/wordnet')
81
+ print("✓ WordNet is already available")
82
+ except LookupError:
83
+ print("Downloading WordNet...")
84
+ nltk.download('wordnet', download_dir=nltk_data)
85
+ print("✓ Downloaded WordNet")
86
+
87
+ # Download omw-1.4
88
+ try:
89
+ nltk.data.find('corpora/omw-1.4')
90
+ print("✓ OMW-1.4 is already available")
91
+ except LookupError:
92
+ print("Downloading OMW-1.4...")
93
+ nltk.download('omw-1.4', download_dir=nltk_data)
94
+ print("✓ Downloaded OMW-1.4")
95
+
96
+ # Test NLTK components
97
+ print("\n=== Testing NLTK Components ===")
98
+ sent_tokenize("This is a test.")
99
+ word_tokenize("This is a test.")
100
+ pos_tag(["test", "this", "is", "a", "sentence"])
101
+ stopwords.words('english')
102
+
103
+ print("\n=== NLTK Setup Completed Successfully ===\n")
104
+ return True
105
+
106
+ except Exception as e:
107
+ print(f"\n⚠ Error during NLTK setup: {str(e)}")
108
+ print("\nPlease try running these commands manually in a Python shell:")
109
+ print("import nltk")
110
+ print("nltk.download('punkt')")
111
+ print("nltk.download('stopwords')")
112
+ print("nltk.download('averaged_perceptron_tagger')")
113
+ print("nltk.download('wordnet')")
114
+ print("nltk.download('omw-1.4')\n")
115
+ return False
116
+
117
+ # Initialize NLTK
118
+ if not setup_nltk():
119
+ print("Failed to initialize NLTK. Some features may not work properly.")
120
+ print("Trying to continue with limited functionality...\n")
121
+ try:
122
+ print(f"✓ {package} is already downloaded")
123
+ except LookupError:
124
+ print(f"Downloading {package}...")
125
+ try:
126
+ nltk.download(package, download_dir=nltk_data, quiet=False)
127
+ # Verify download
128
+ try:
129
+ nltk.data.find(path)
130
+ print(f"✓ Successfully downloaded {package}")
131
+ except LookupError:
132
+ print(f"⚠ Warning: {package} download verification failed")
133
+ except Exception as e:
134
+ print(f"⚠ Error downloading {package}: {str(e)}")
135
+ if package == 'averaged_perceptron_tagger':
136
+ print("⚠ This is a critical package. The application may not work properly.")
137
+
138
+ print("\n=== NLTK Data Setup Complete ===\n")
139
+
140
+ # Initialize NLTK data
141
+ download_nltk_data()
142
+
143
+ # Initialize NLTK components
144
+ try:
145
+ # Initialize tokenizers
146
+ sent_tokenize("Initializing...")
147
+ word_tokenize("Initializing...")
148
+
149
+ # Initialize POS tagger
150
+ from nltk.tag import pos_tag
151
+ pos_tag(["test"])
152
+
153
+ # Initialize stopwords
154
+ stopwords.words('english')
155
+
156
+ print("✓ NLTK components initialized successfully")
157
+ except Exception as e:
158
+ print(f"⚠ Error initializing NLTK components: {str(e)}")
159
+
160
+ class QuestionGenerator:
161
+ def __init__(self, model_name="deepset/roberta-base-squad2", use_transformers=True):
162
+ """
163
+ Initialize the question generator with improved context understanding.
164
+
165
+ Args:
166
+ model_name (str): Name of the pre-trained model to use
167
+ use_transformers (bool): Whether to use transformer models for better quality
168
+ """
169
+ print("Initializing question generator with enhanced context understanding...")
170
+ self.use_transformers = use_transformers
171
+ self.stop_words = set(stopwords.words('english'))
172
+ self.device = 'cuda' if torch.cuda.is_available() else 'cpu'
173
+
174
+ if use_transformers:
175
+ try:
176
+ print("Loading question generation model...")
177
+ self.qg_model = pipeline("text2text-generation",
178
+ model="valhalla/t5-base-qa-qg-hl",
179
+ device=0 if self.device == 'cuda' else -1)
180
+ print("Question generation model loaded successfully!")
181
+ except Exception as e:
182
+ print(f"Error loading transformer model: {str(e)}")
183
+ print("Falling back to rule-based generation.")
184
+ self.use_transformers = False
185
+
186
+ if not self.use_transformers:
187
+ print("Using rule-based question generation.")
188
+ self._init_rule_based_system()
189
+
190
+ print("Question generator initialized successfully!")
191
+
192
+ def _init_rule_based_system(self):
193
+ """Initialize the rule-based question generation system."""
194
+ self.wh_words = ['what', 'when', 'where', 'who', 'whom', 'whose', 'which', 'why', 'how']
195
+ self.aux_verbs = ['is', 'are', 'was', 'were', 'do', 'does', 'did', 'have', 'has', 'had', 'can', 'could', 'will', 'would', 'shall', 'should', 'may', 'might', 'must']
196
+ self.important_pos_tags = {'NN', 'NNS', 'NNP', 'NNPS', 'VBG', 'VBN', 'JJ', 'JJR', 'JJS'}
197
+
198
+ def _extract_key_phrases(self, text):
199
+ """Extract key phrases from text based on POS tagging."""
200
+ words = word_tokenize(text)
201
+ pos_tags = nltk.pos_tag(words)
202
+
203
+ key_phrases = []
204
+ current_phrase = []
205
+
206
+ for word, tag in pos_tags:
207
+ if tag in self.important_pos_tags:
208
+ current_phrase.append(word.lower())
209
+ elif current_phrase:
210
+ if len(current_phrase) > 1: # Only consider phrases with at least 2 words
211
+ key_phrases.append(' '.join(current_phrase))
212
+ current_phrase = []
213
+
214
+ return list(set(key_phrases)) # Remove duplicates
215
+
216
+ def generate_question_from_sentence(self, sentence):
217
+ """Generate a question from a given sentence using rule-based approach."""
218
+ words = word_tokenize(sentence)
219
+ pos_tags = nltk.pos_tag(words)
220
+
221
+ # Find the main verb and subject
222
+ for i, (word, tag) in enumerate(pos_tags):
223
+ if tag.startswith('VB'): # Verb
224
+ # Find the subject before the verb
225
+ for j in range(i-1, -1, -1):
226
+ if pos_tags[j][1].startswith('NN'): # Noun
227
+ subject = ' '.join([w for w, _ in pos_tags[j:i]])
228
+ # Create a wh-question
229
+ question = f"What {pos_tags[i][0]} {subject}?"
230
+ return question
231
+
232
+ # Fallback: create a what question about the main noun phrase
233
+ for i, (word, tag) in enumerate(pos_tags):
234
+ if tag.startswith('NN'): # Noun
235
+ return f"What is {word}?"
236
+
237
+ # Final fallback
238
+ return f"What is the main idea of: {sentence[:50]}...?"
239
+
240
+ def _analyze_text_structure(self, text):
241
+ """Analyze text structure to identify important concepts and relationships."""
242
+ sentences = sent_tokenize(text)
243
+ key_phrases = self._extract_key_phrases(text)
244
+
245
+ # Find most important terms using frequency distribution
246
+ words = [word.lower() for word in word_tokenize(text)
247
+ if word.isalnum() and word.lower() not in self.stop_words]
248
+ freq_dist = FreqDist(words)
249
+
250
+ return {
251
+ 'sentences': sentences,
252
+ 'key_phrases': key_phrases,
253
+ 'top_terms': [word for word, _ in freq_dist.most_common(10)],
254
+ 'concept_map': self._build_concept_map(sentences, key_phrases)
255
+ }
256
+
257
+ def _build_concept_map(self, sentences, key_phrases):
258
+ """Build a simple concept map showing relationships between key phrases."""
259
+ concept_map = defaultdict(list)
260
+
261
+ for phrase in key_phrases:
262
+ for sentence in sentences:
263
+ if phrase in sentence.lower():
264
+ # Find other key phrases in the same sentence
265
+ related = [p for p in key_phrases if p != phrase and p in sentence.lower()]
266
+ concept_map[phrase].extend(related)
267
+
268
+ # Remove duplicates
269
+ return {k: list(set(v)) for k, v in concept_map.items()}
270
+ try:
271
+ print("Attempting to load T5 model... This may take a few minutes on first run.")
272
+
273
+ from transformers import T5ForConditionalGeneration, T5Tokenizer
274
+
275
+ # Use smaller, faster model for web deployment
276
+ model_name = "t5-base"
277
+
278
+ print(f"Loading {model_name} model...")
279
+ self.tokenizer = T5Tokenizer.from_pretrained(model_name)
280
+ self.model = T5ForConditionalGeneration.from_pretrained(model_name)
281
+
282
+ # Use CPU for more reliable deployment (avoid CUDA issues)
283
+ self.device = torch.device("cpu")
284
+ self.model.to(self.device)
285
+ self.model.eval() # Set to evaluation mode
286
+
287
+ self.use_transformers = True
288
+ print(f"T5 model loaded successfully on {self.device}")
289
+
290
+ except ImportError as e:
291
+ print(f"Transformers library not installed: {e}")
292
+ print("Install with: pip install transformers torch")
293
+ self.use_transformers = False
294
+ except Exception as e:
295
+ print(f"Failed to load T5 model: {e}")
296
+ print("Falling back to rule-based generation.")
297
+ self.use_transformers = False
298
+
299
+ def generate_questions(self, text, num_questions=5, context_window=3):
300
+ """
301
+ Generate meaningful questions from the given text with better context understanding.
302
+
303
+ Args:
304
+ text (str): Input text to generate questions from
305
+ num_questions (int): Number of questions to generate
306
+ context_window (int): Number of sentences to consider as context
307
+
308
+ Returns:
309
+ list: List of generated questions with their context
310
+ """
311
+ if not text.strip():
312
+ return []
313
+
314
+ # Analyze the text structure first
315
+ analysis = self._analyze_text_structure(text)
316
+ sentences = analysis['sentences']
317
+
318
+ if not sentences:
319
+ return []
320
+
321
+ questions = []
322
+
323
+ # Generate questions using different strategies
324
+ if self.use_transformers and hasattr(self, 'qg_model'):
325
+ # Use transformer-based generation for better quality
326
+ for i in range(0, len(sentences), context_window):
327
+ context = ' '.join(sentences[i:i+context_window])
328
+ try:
329
+ # Generate questions for this context window
330
+ generated = self.qg_model(context, max_length=128, num_return_sequences=1)
331
+ if generated and len(generated) > 0:
332
+ question = generated[0]['generated_text'].strip()
333
+ if question and question[-1] != '?':
334
+ question += '?'
335
+ questions.append({
336
+ 'question': question,
337
+ 'context': context,
338
+ 'type': 'comprehension'
339
+ })
340
+ if len(questions) >= num_questions:
341
+ break
342
+ except Exception as e:
343
+ print(f"Error in transformer-based generation: {str(e)}")
344
+ continue
345
+
346
+ # Fallback to rule-based generation if needed
347
+ if len(questions) < num_questions:
348
+ for i, sentence in enumerate(sentences):
349
+ if len(sentence.split()) < 5: # Skip very short sentences
350
+ continue
351
+
352
+ # Generate question using rule-based approach
353
+ question = self._generate_question_from_sentence(sentence)
354
+
355
+ # Get context (previous and next sentences)
356
+ start = max(0, i-1)
357
+ end = min(len(sentences), i+2)
358
+ context = ' '.join(sentences[start:end])
359
+
360
+ questions.append({
361
+ 'question': question,
362
+ 'context': context,
363
+ 'type': 'factual'
364
+ })
365
+
366
+ if len(questions) >= num_questions:
367
+ break
368
+
369
+ # Ensure we have enough questions
370
+ if len(questions) < num_questions:
371
+ # Generate some conceptual questions based on key phrases
372
+ for phrase in analysis['key_phrases'][:num_questions - len(questions)]:
373
+ questions.append({
374
+ 'question': f"Explain the concept of {phrase} in detail.",
375
+ 'context': f"The concept of {phrase} is important in this context.",
376
+ 'type': 'conceptual'
377
+ })
378
+
379
+ return questions[:num_questions]
380
+
381
+ def _generate_with_transformers(self, sentence, max_length):
382
+ """Generate question using T5 model."""
383
+ if not self.use_transformers or self.model is None:
384
+ return self._generate_with_rules(sentence)
385
+
386
+ try:
387
+ # Prepare input for T5 model
388
+ input_text = f"generate question: {sentence[:300]}" # Limit input length
389
+
390
+ # Tokenize input with error handling
391
+ inputs = self.tokenizer.encode(
392
+ input_text,
393
+ return_tensors="pt",
394
+ max_length=256, # Reduced for faster processing
395
+ truncation=True,
396
+ padding=True
397
+ )
398
+
399
+ if self.device:
400
+ inputs = inputs.to(self.device)
401
+
402
+ # Generate question with optimized parameters
403
+ with torch.no_grad():
404
+ outputs = self.model.generate(
405
+ inputs,
406
+ max_length=min(max_length, 64), # Increased output length
407
+ num_beams=4, # Increased beams for better quality
408
+ early_stopping=True,
409
+ do_sample=False, # Deterministic for consistency
410
+ pad_token_id=self.tokenizer.eos_token_id
411
+ )
412
+
413
+ # Decode and clean question
414
+ question = self.tokenizer.decode(outputs[0], skip_special_tokens=True)
415
+ cleaned_question = self.clean_question(question)
416
+
417
+ # Validate the generated question
418
+ if len(cleaned_question) < 10 or not cleaned_question.endswith('?'):
419
+ print("Generated question quality low, using rule-based fallback")
420
+ return self._generate_with_rules(sentence)
421
+
422
+ return cleaned_question
423
+
424
+ except Exception as e:
425
+ print(f"Transformer generation failed: {e}")
426
+ print("Falling back to rule-based generation")
427
+ return self._generate_with_rules(sentence)
428
+
429
+ def _generate_with_rules(self, sentence):
430
+ """Generate question using rule-based approach."""
431
+ sentence = sentence.strip()
432
+ words = sentence.split()
433
+
434
+ # Enhanced question templates based on sentence patterns
435
+ question_templates = [
436
+ # What questions - most common
437
+ (lambda s: any(word in s.lower() for word in ['is', 'are', 'means', 'refers', 'definition', 'concept']),
438
+ lambda s: f"What {self._extract_predicate(s)}?"),
439
+
440
+ # Define/Explain questions
441
+ (lambda s: any(word in s.lower() for word in ['definition', 'meaning', 'concept', 'term']),
442
+ lambda s: f"Define {self._extract_main_subject(s)}."),
443
+
444
+ # How questions
445
+ (lambda s: any(word in s.lower() for word in ['process', 'method', 'way', 'procedure', 'algorithm']),
446
+ lambda s: f"How {self._extract_predicate(s)}?"),
447
+
448
+ # Why questions
449
+ (lambda s: any(word in s.lower() for word in ['because', 'reason', 'cause', 'purpose', 'important']),
450
+ lambda s: f"Why {self._extract_predicate(s)}?"),
451
+
452
+ # When questions
453
+ (lambda s: any(word in s.lower() for word in ['year', 'century', 'time', 'date', 'period', 'era']),
454
+ lambda s: f"When {self._extract_predicate(s)}?"),
455
+
456
+ # Where questions
457
+ (lambda s: any(word in s.lower() for word in ['place', 'location', 'country', 'city', 'region']),
458
+ lambda s: f"Where {self._extract_predicate(s)}?"),
459
+
460
+ # Who questions
461
+ (lambda s: any(word in s.lower() for word in ['person', 'people', 'scientist', 'author', 'researcher']),
462
+ lambda s: f"Who {self._extract_predicate(s)}?"),
463
+
464
+ # How questions
465
+ (lambda s: any(word in s.lower() for word in ['method', 'process', 'way', 'how']),
466
+ lambda s: f"How {self._extract_predicate(s)}?"),
467
+
468
+ # Why questions
469
+ (lambda s: any(word in s.lower() for word in ['reason', 'because', 'cause', 'why']),
470
+ lambda s: f"Why {self._extract_predicate(s)}?"),
471
+
472
+ # Default question
473
+ (lambda s: True,
474
+ lambda s: f"What can you tell me about {self._extract_main_subject(s)}?")
475
+ ]
476
+
477
+ # Apply first matching template
478
+ for condition, template in question_templates:
479
+ if condition(sentence):
480
+ try:
481
+ question = template(sentence)
482
+ return self.clean_question(question)
483
+ except:
484
+ continue
485
+
486
+ # Fallback
487
+ return f"What is the main point about {words[0] if words else 'this topic'}?"
488
+
489
+ def _extract_main_subject(self, sentence):
490
+ """Extract the main subject from a sentence."""
491
+ words = sentence.split()
492
+ # Look for capitalized words (likely proper nouns)
493
+ subjects = [word.strip('.,!?;:') for word in words if word[0].isupper() and len(word) > 2]
494
+ if subjects:
495
+ return subjects[0]
496
+ # Fallback to first few words
497
+ return ' '.join(words[:3]) if len(words) >= 3 else sentence
498
+
499
+ def _extract_predicate(self, sentence):
500
+ """Extract predicate for question formation."""
501
+ sentence = sentence.lower()
502
+ # Remove common sentence starters
503
+ sentence = re.sub(r'^(the|this|that|these|those|a|an)\s+', '', sentence)
504
+
505
+ # Find verb patterns
506
+ if ' is ' in sentence:
507
+ parts = sentence.split(' is ', 1)
508
+ if len(parts) > 1:
509
+ return f"is {parts[1].strip('.,!?;:')}"
510
+
511
+ if ' are ' in sentence:
512
+ parts = sentence.split(' are ', 1)
513
+ if len(parts) > 1:
514
+ return f"are {parts[1].strip('.,!?;:')}"
515
+
516
+ # Default fallback
517
+ words = sentence.split()
518
+ if len(words) > 3:
519
+ return ' '.join(words[1:]).strip('.,!?;:')
520
+ return sentence.strip('.,!?;:')
521
+
522
+ def clean_question(self, question):
523
+ """
524
+ Clean and format the generated question.
525
+
526
+ Args:
527
+ question (str): Raw generated question
528
+
529
+ Returns:
530
+ str: Cleaned question
531
+ """
532
+ # Remove extra spaces
533
+ question = re.sub(r'\s+', ' ', question.strip())
534
+
535
+ # Ensure question ends with question mark
536
+ if not question.endswith('?'):
537
+ question += '?'
538
+
539
+ # Capitalize first letter
540
+ if question:
541
+ question = question[0].upper() + question[1:]
542
+
543
+ return question
544
+
545
+ def generate_multiple_questions(self, sentences, max_questions=5):
546
+ """
547
+ Generate multiple questions from a list of sentences.
548
+
549
+ Args:
550
+ sentences (list): List of sentences to generate questions from
551
+ max_questions (int): Maximum number of questions to generate
552
+
553
+ Returns:
554
+ list: List of generated questions with their source sentences
555
+ """
556
+ questions = []
557
+
558
+ for i, (score, sentence) in enumerate(sentences[:max_questions]):
559
+ try:
560
+ question = self.generate_question_from_sentence(sentence)
561
+
562
+ # Filter out low-quality questions
563
+ if self.is_valid_question(question):
564
+ questions.append({
565
+ 'question': question,
566
+ 'context': sentence,
567
+ 'score': score,
568
+ 'question_id': i + 1
569
+ })
570
+ except Exception as e:
571
+ print(f"Error generating question from sentence: {sentence[:50]}... Error: {e}")
572
+ continue
573
+
574
+ return questions
575
+
576
+ def is_valid_question(self, question):
577
+ """
578
+ Check if a generated question is valid.
579
+
580
+ Args:
581
+ question (str): Generated question
582
+
583
+ Returns:
584
+ bool: True if question is valid
585
+ """
586
+ # Basic validation criteria
587
+ if len(question) < 10: # Too short
588
+ return False
589
+
590
+ if len(question) > 200: # Too long
591
+ return False
592
+
593
+ # Must contain question words or end with question mark
594
+ question_words = ['what', 'who', 'when', 'where', 'why', 'how', 'which', 'is', 'are', 'do', 'does', 'did', 'can', 'could', 'would', 'should']
595
+ question_lower = question.lower()
596
+
597
+ has_question_word = any(word in question_lower for word in question_words)
598
+ ends_with_question_mark = question.endswith('?')
599
+
600
+ return has_question_word or ends_with_question_mark
requirements.txt ADDED
@@ -0,0 +1,13 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ nltk>=3.8
2
+ transformers>=4.30.0
3
+ torch>=2.0.0
4
+ flask>=3.0.0
5
+ rake-nltk>=1.0.6
6
+ scikit-learn>=1.3.0
7
+ numpy>=1.24.0
8
+ pandas>=1.5.0
9
+ sentence-transformers>=2.2.0
10
+ sentencepiece>=0.1.99
11
+ python-docx>=0.8.11
12
+ openai>=1.0.0
13
+ PyPDF2>=3.0.0
sample_text.txt ADDED
@@ -0,0 +1,9 @@
 
 
 
 
 
 
 
 
 
 
1
+ Machine Learning and Artificial Intelligence
2
+
3
+ Machine learning is a method of data analysis that automates analytical model building. It is a branch of artificial intelligence based on the idea that systems can learn from data, identify patterns and make decisions with minimal human intervention. The term machine learning was coined in 1959 by Arthur Samuel, an American IBMer and pioneer in the field of computer gaming and artificial intelligence.
4
+
5
+ There are three main types of machine learning algorithms: supervised learning, unsupervised learning, and reinforcement learning. Supervised learning uses labeled training data to learn a mapping function from input variables to output variables. Common examples include classification and regression problems. Unsupervised learning finds hidden patterns in data without labeled examples, such as clustering and association rule learning. Reinforcement learning involves an agent learning to make decisions by taking actions in an environment to maximize cumulative reward.
6
+
7
+ Deep learning is a subset of machine learning that uses neural networks with multiple layers to model and understand complex patterns in data. These deep neural networks can automatically learn hierarchical representations of data, making them particularly effective for tasks like image recognition, natural language processing, and speech recognition. Popular deep learning frameworks include TensorFlow, PyTorch, and Keras.
8
+
9
+ Python has become the most popular programming language for machine learning due to its simplicity, readability, and extensive ecosystem of libraries. Key Python libraries for machine learning include NumPy for numerical computing, Pandas for data manipulation, Scikit-learn for traditional machine learning algorithms, and Matplotlib for data visualization. The combination of these tools makes Python an ideal choice for both beginners and experts in the field of artificial intelligence.
setup_nltk.py ADDED
@@ -0,0 +1,40 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import os
2
+ import nltk
3
+
4
+ def download_nltk_data():
5
+ # Set NLTK data path to a local directory
6
+ nltk_data = os.path.join(os.getcwd(), 'nltk_data')
7
+ os.makedirs(nltk_data, exist_ok=True)
8
+ nltk.data.path.append(nltk_data)
9
+
10
+ print(f"NLTK data will be downloaded to: {nltk_data}")
11
+
12
+ # List of NLTK packages to download
13
+ packages = [
14
+ 'punkt',
15
+ 'stopwords',
16
+ 'averaged_perceptron_tagger',
17
+ 'averaged_perceptron_tagger_eng',
18
+ 'wordnet',
19
+ 'omw-1.4',
20
+ 'maxent_ne_chunker',
21
+ 'words',
22
+ 'punkt'
23
+ ]
24
+
25
+ print("\n=== Downloading NLTK Data ===")
26
+
27
+ for package in packages:
28
+ try:
29
+ print(f"Downloading {package}...")
30
+ nltk.download(package, download_dir=nltk_data)
31
+ print(f"✓ {package} downloaded successfully")
32
+ except Exception as e:
33
+ print(f"⚠ Error downloading {package}: {str(e)}")
34
+
35
+ print("\n=== NLTK Setup Complete ===")
36
+ print(f"NLTK data location: {nltk_data}")
37
+ print("You can now run your application.")
38
+
39
+ if __name__ == "__main__":
40
+ download_nltk_data()
simple_nltk_test.py ADDED
@@ -0,0 +1,32 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import nltk
2
+
3
+ print("Testing NLTK installation...")
4
+
5
+ # Test tokenization
6
+ try:
7
+ from nltk.tokenize import word_tokenize, sent_tokenize
8
+ text = "This is a test sentence. NLTK should be able to tokenize this."
9
+ print("\nTokenization test:")
10
+ print(f"Word tokens: {word_tokenize(text)}")
11
+ print(f"Sentences: {sent_tokenize(text)}")
12
+ except Exception as e:
13
+ print(f"Tokenization error: {e}")
14
+
15
+ # Test POS tagging
16
+ try:
17
+ from nltk import pos_tag
18
+ tokens = word_tokenize("This is a test")
19
+ print("\nPOS tagging test:")
20
+ print(f"POS tags: {pos_tag(tokens)}")
21
+ except Exception as e:
22
+ print(f"POS tagging error: {e}")
23
+
24
+ # Test stopwords
25
+ try:
26
+ from nltk.corpus import stopwords
27
+ print("\nStopwords test:")
28
+ print(f"English stopwords (first 5): {stopwords.words('english')[:5]}")
29
+ except Exception as e:
30
+ print(f"Stopwords error: {e}")
31
+
32
+ print("\nNLTK test complete.")
simple_question_generator.py ADDED
@@ -0,0 +1,76 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import re
2
+ import random
3
+
4
+ class SimpleQuestionGenerator:
5
+ def __init__(self):
6
+ self.question_words = [
7
+ 'What', 'Why', 'How', 'When', 'Where', 'Who', 'Which', 'Describe', 'Explain'
8
+ ]
9
+ self.auxiliary_verbs = ['is', 'are', 'was', 'were', 'do', 'does', 'did', 'have', 'has', 'had']
10
+
11
+ def generate_question(self, sentence):
12
+ """Generate a simple question from a given sentence."""
13
+ if not sentence.strip():
14
+ return ""
15
+
16
+ # Clean the sentence
17
+ sentence = sentence.strip().strip('.').strip()
18
+
19
+ # Simple question patterns
20
+ patterns = [
21
+ (r'^(.*?) is (.*?)[.,;]?$', 'What is {}?'),
22
+ (r'^(.*?) are (.*?)[.,;]?$', 'What are {}?'),
23
+ (r'^(.*?) was (.*?)[.,;]?$', 'What was {}?'),
24
+ (r'^(.*?) were (.*?)[.,;]?$', 'What were {}?'),
25
+ (r'^(.*?) can be (.*?)[.,;]?$', 'How can {} be {}?'),
26
+ (r'^(.*?) has (.*?)[.,;]?$', 'What has {}?'),
27
+ (r'^(.*?) have (.*?)[.,;]?$', 'What have {}?'),
28
+ ]
29
+
30
+ # Try to match patterns
31
+ for pattern, template in patterns:
32
+ match = re.match(pattern, sentence, re.IGNORECASE)
33
+ if match:
34
+ return template.format(match.group(1)).capitalize()
35
+
36
+ # Default question if no pattern matches
37
+ return f"What is the main point about: {sentence[:50]}...?"
38
+
39
+ def generate_questions(self, text, num_questions=5):
40
+ """Generate questions from the given text."""
41
+ # Simple sentence splitting
42
+ sentences = re.split(r'(?<=[.!?])\s+', text)
43
+ questions = []
44
+
45
+ for sentence in sentences:
46
+ if len(questions) >= num_questions:
47
+ break
48
+
49
+ question = self.generate_question(sentence)
50
+ if question and question not in questions:
51
+ questions.append(question)
52
+
53
+ return questions
54
+
55
+ # Example usage
56
+ if __name__ == "__main__":
57
+ # Create a question generator
58
+ qg = SimpleQuestionGenerator()
59
+
60
+ # Sample text
61
+ sample_text = """
62
+ Machine learning is a branch of artificial intelligence.
63
+ It focuses on building systems that learn from data.
64
+ These systems can improve their performance over time.
65
+ There are three main types of machine learning: supervised, unsupervised, and reinforcement learning.
66
+ Supervised learning uses labeled data to train models.
67
+ Unsupervised learning finds patterns in unlabeled data.
68
+ Reinforcement learning involves training an agent to make decisions through rewards.
69
+ """
70
+
71
+ # Generate and print questions
72
+ print("Generating questions...\n")
73
+ questions = qg.generate_questions(sample_text, 5)
74
+
75
+ for i, question in enumerate(questions, 1):
76
+ print(f"{i}. {question}")
syllabus_processor.py ADDED
@@ -0,0 +1,175 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import re
2
+ import nltk
3
+ import os
4
+ from nltk.tokenize import word_tokenize, sent_tokenize
5
+ from nltk.corpus import stopwords
6
+ from nltk.tag import pos_tag
7
+ from nltk.stem import WordNetLemmatizer
8
+ from typing import List, Dict, Tuple, Optional
9
+ import logging
10
+ from datetime import datetime
11
+ from question_generator import QuestionGenerator
12
+
13
+ # Configure logging
14
+ logging.basicConfig(level=logging.INFO)
15
+ logger = logging.getLogger(__name__)
16
+
17
+ class SyllabusProcessor:
18
+ def __init__(self):
19
+ """Initialize the SyllabusProcessor with necessary NLTK components."""
20
+ try:
21
+ # Download required NLTK data
22
+ nltk.download('punkt', quiet=True)
23
+ nltk.download('stopwords', quiet=True)
24
+ nltk.download('averaged_perceptron_tagger', quiet=True)
25
+ nltk.download('averaged_perceptron_tagger_eng', quiet=True)
26
+ nltk.download('wordnet', quiet=True)
27
+ nltk.download('omw-1.4', quiet=True)
28
+
29
+ # Initialize NLTK components
30
+ self.stop_words = set(stopwords.words('english'))
31
+ self.lemmatizer = WordNetLemmatizer()
32
+
33
+ # Import and initialize the PerceptronTagger
34
+ from nltk.tag import PerceptronTagger
35
+ self.tagger = PerceptronTagger()
36
+
37
+ # Initialize question generator
38
+ self.question_generator = QuestionGenerator()
39
+
40
+ logger.info("SyllabusProcessor initialized successfully")
41
+
42
+ except Exception as e:
43
+ logger.error(f"Error initializing SyllabusProcessor: {str(e)}")
44
+ raise
45
+
46
+ def parse_syllabus(self, syllabus_text: str) -> Dict[str, List[str]]:
47
+ """
48
+ Parse a syllabus text into topics and subtopics.
49
+
50
+ Args:
51
+ syllabus_text: Raw syllabus text with units and topics
52
+
53
+ Returns:
54
+ Dictionary mapping unit names to lists of topics
55
+ """
56
+ units = {}
57
+ current_unit = "General Topics"
58
+ units[current_unit] = []
59
+
60
+ # Split into lines and process each line
61
+ for line in syllabus_text.split('\n'):
62
+ line = line.strip()
63
+ if not line:
64
+ continue
65
+
66
+ # Check for unit headers (e.g., "Unit 1.0 Introduction" or "Unit 1: Introduction")
67
+ unit_match = re.match(r'(?:Unit[\s\-]*\d+(?:\.\d+)?\s*[:\-]?\s*)(.+)', line, re.IGNORECASE)
68
+ if unit_match:
69
+ current_unit = unit_match.group(0).strip()
70
+ units[current_unit] = []
71
+
72
+ # Check if there are topics on the same line (e.g., "Unit 1 ... 1.1 Topic")
73
+ remaining_text = unit_match.group(1)
74
+ # Find all topic patterns like "1.1 Topic Name"
75
+ inline_topics = re.findall(r'(\d+(?:\.\d+)+[\s\-]+[^0-9]+)', remaining_text)
76
+ for t in inline_topics:
77
+ # Clean up the topic text
78
+ t = re.sub(r'\s*\d+\.\d+.*$', '', t).strip() # Remove next topic number if caught
79
+ if t:
80
+ units[current_unit].append(t.strip())
81
+ continue
82
+
83
+ # Check for topic lines (e.g., "1.1 Topic Name" or "- Topic Name")
84
+ # Handle multiple topics on one line
85
+ topics_on_line = re.findall(r'(\d+(?:\.\d+)+[\s\-]+[^0-9]+)', line)
86
+ if topics_on_line:
87
+ for t in topics_on_line:
88
+ t = t.strip()
89
+ # Clean up trailing dots or next topic numbers
90
+ t = re.sub(r'\s*\d+\.\d+.*$', '', t).strip()
91
+ if t and len(t) > 3: # Avoid just numbers
92
+ units[current_unit].append(t)
93
+ else:
94
+ # Check for bullet points
95
+ topic_match = re.match(r'(?:[-•*]\s*)(.+)', line)
96
+ if topic_match:
97
+ topic = topic_match.group(1).strip()
98
+ if topic and topic.lower() not in ['introduction', 'overview']:
99
+ units[current_unit].append(topic)
100
+
101
+ return units
102
+
103
+ def extract_key_terms(self, topic: str) -> List[str]:
104
+ """
105
+ Extract key terms from a topic for question generation.
106
+
107
+ Args:
108
+ topic: The topic text
109
+
110
+ Returns:
111
+ List of important terms from the topic
112
+ """
113
+ try:
114
+ # Use the instance tagger
115
+ words = word_tokenize(topic.lower())
116
+ pos_tags = self.tagger.tag(words)
117
+
118
+ # Extract nouns and proper nouns
119
+ key_terms = [
120
+ word for word, tag in pos_tags
121
+ if tag.startswith('NN') and word not in self.stop_words
122
+ ]
123
+
124
+ return list(set(key_terms)) # Remove duplicates
125
+
126
+ except Exception as e:
127
+ logger.error(f"Error extracting key terms: {str(e)}")
128
+ return []
129
+
130
+ def generate_topic_based_questions(self, syllabus_text: str, content_text: str,
131
+ questions_per_topic: int = 3) -> Dict[str, List[Dict]]:
132
+ """
133
+ Generate questions based on syllabus topics.
134
+
135
+ Args:
136
+ syllabus_text: The syllabus text with units and topics
137
+ content_text: The content text to generate questions from
138
+ questions_per_topic: Number of questions to generate per topic
139
+
140
+ Returns:
141
+ Dictionary mapping topics to lists of questions
142
+ """
143
+ # Parse the syllabus
144
+ units = self.parse_syllabus(syllabus_text)
145
+
146
+ # Process content into sentences
147
+ sentences = sent_tokenize(content_text)
148
+
149
+ topic_questions = {}
150
+
151
+ for unit, topics in units.items():
152
+ for topic in topics:
153
+ # Extract key terms from the topic
154
+ key_terms = self.extract_key_terms(topic)
155
+
156
+ # Find relevant sentences containing these terms
157
+ relevant_sentences = []
158
+ for sentence in sentences:
159
+ if any(term in sentence.lower() for term in key_terms):
160
+ relevant_sentences.append(sentence)
161
+
162
+ # If no relevant sentences found, use general content
163
+ if not relevant_sentences:
164
+ relevant_sentences = sentences
165
+
166
+ # Generate questions from relevant sentences
167
+ questions = self.question_generator.generate_multiple_questions(
168
+ relevant_sentences,
169
+ max_questions=min(questions_per_topic, len(relevant_sentences))
170
+ )
171
+
172
+ if questions:
173
+ topic_questions[f"{unit} - {topic}"] = questions
174
+
175
+ return topic_questions
test_imports.py ADDED
@@ -0,0 +1,113 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ #!/usr/bin/env python
2
+ # -*- coding: utf-8 -*-
3
+ """Quick test to verify all modules can be imported and basic functionality works."""
4
+
5
+ import sys
6
+
7
+ def test_imports():
8
+ """Test if all modules can be imported."""
9
+ print("Testing module imports...")
10
+
11
+ try:
12
+ print(" [OK] Importing text_processor...")
13
+ from text_processor import TextProcessor
14
+ tp = TextProcessor()
15
+ print(" [OK] TextProcessor initialized")
16
+
17
+ print(" [OK] Importing keyword_extractor...")
18
+ from keyword_extractor import KeywordExtractor
19
+ ke = KeywordExtractor()
20
+ print(" [OK] KeywordExtractor initialized")
21
+
22
+ print(" [OK] Importing question_generator...")
23
+ from question_generator import QuestionGenerator
24
+ qg = QuestionGenerator(use_transformers=False)
25
+ print(" [OK] QuestionGenerator initialized")
26
+
27
+ print(" [OK] Importing option_generator...")
28
+ from option_generator import OptionGenerator
29
+ og = OptionGenerator()
30
+ print(" [OK] OptionGenerator initialized")
31
+
32
+ print(" [OK] Importing syllabus_processor...")
33
+ from syllabus_processor import SyllabusProcessor
34
+ sp = SyllabusProcessor()
35
+ print(" [OK] SyllabusProcessor initialized")
36
+
37
+ print(" [OK] Importing exam_question_system...")
38
+ from exam_question_system import ExamQuestionSystem
39
+ print(" [OK] ExamQuestionSystem imported")
40
+
41
+ print(" [OK] Importing app...")
42
+ from app import app
43
+ print(" [OK] Flask app imported")
44
+
45
+ print("\n[SUCCESS] All imports successful!")
46
+ return True
47
+
48
+ except ImportError as e:
49
+ print(f"\n[ERROR] Import error: {e}")
50
+ return False
51
+ except Exception as e:
52
+ print(f"\n[WARNING] Error during initialization: {e}")
53
+ print(" (This might be due to missing NLTK data)")
54
+ return False
55
+
56
+ def test_basic_functionality():
57
+ """Test basic functionality."""
58
+ print("\nTesting basic functionality...")
59
+
60
+ try:
61
+ from text_processor import TextProcessor
62
+ from keyword_extractor import KeywordExtractor
63
+
64
+ tp = TextProcessor()
65
+ ke = KeywordExtractor()
66
+
67
+ test_text = "Python is a programming language. It is widely used for web development and data science."
68
+
69
+ print(" [OK] Testing text preprocessing...")
70
+ processed = tp.preprocess_text(test_text)
71
+ assert 'sentences' in processed
72
+ assert len(processed['sentences']) > 0
73
+ print(f" [OK] Processed {len(processed['sentences'])} sentences")
74
+
75
+ print(" [OK] Testing keyword extraction...")
76
+ keywords = ke.extract_keywords_rake(test_text, max_keywords=5)
77
+ assert len(keywords) > 0
78
+ print(f" [OK] Extracted {len(keywords)} keywords")
79
+
80
+ print("\n[SUCCESS] Basic functionality test passed!")
81
+ return True
82
+
83
+ except Exception as e:
84
+ print(f"\n[WARNING] Functionality test error: {e}")
85
+ import traceback
86
+ traceback.print_exc()
87
+ return False
88
+
89
+ if __name__ == "__main__":
90
+ print("=" * 60)
91
+ print("Project Import and Basic Functionality Test")
92
+ print("=" * 60)
93
+
94
+ imports_ok = test_imports()
95
+
96
+ if imports_ok:
97
+ functionality_ok = test_basic_functionality()
98
+
99
+ if functionality_ok:
100
+ print("\n" + "=" * 60)
101
+ print("[SUCCESS] PROJECT IS WORKING!")
102
+ print("=" * 60)
103
+ sys.exit(0)
104
+ else:
105
+ print("\n" + "=" * 60)
106
+ print("[WARNING] Imports work but functionality may have issues")
107
+ print("=" * 60)
108
+ sys.exit(1)
109
+ else:
110
+ print("\n" + "=" * 60)
111
+ print("[ERROR] PROJECT HAS IMPORT ERRORS")
112
+ print("=" * 60)
113
+ sys.exit(1)
test_local_generator.py ADDED
@@ -0,0 +1,27 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ from local_question_generator import LocalQuestionGenerator
2
+
3
+ def test_local_generator():
4
+ print("Testing Local Question Generator...")
5
+
6
+ # Sample text
7
+ sample_text = """
8
+ The water cycle describes how water evaporates from the Earth's surface,
9
+ rises into the atmosphere, cools and condenses into rain or snow in clouds,
10
+ and falls again to the surface as precipitation.
11
+ """
12
+
13
+ # Initialize the generator
14
+ print("Initializing model (this may take a minute)...")
15
+ qg = LocalQuestionGenerator()
16
+
17
+ # Generate questions
18
+ print("\nGenerating questions...")
19
+ questions = qg.generate_questions(sample_text, num_questions=3)
20
+
21
+ # Print results
22
+ print("\nGenerated Questions:")
23
+ for i, q in enumerate(questions, 1):
24
+ print(f"{i}. {q}")
25
+
26
+ if __name__ == "__main__":
27
+ test_local_generator()
test_nltk.py ADDED
@@ -0,0 +1,43 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import nltk
2
+ import os
3
+
4
+ # Set NLTK data path
5
+ def setup_nltk():
6
+ nltk_data = os.path.join(os.getcwd(), 'nltk_data')
7
+ os.makedirs(nltk_data, exist_ok=True)
8
+ nltk.data.path.append(nltk_data)
9
+ return nltk_data
10
+
11
+ print("Testing NLTK installation...")
12
+ try:
13
+ # Test basic NLTK functionality
14
+ print("Testing tokenizers...")
15
+ from nltk.tokenize import word_tokenize, sent_tokenize
16
+
17
+ text = "This is a test sentence. NLTK is working!"
18
+ print(f"Word tokens: {word_tokenize(text)}")
19
+ print(f"Sentences: {sent_tokenize(text)}")
20
+
21
+ print("\nTesting POS tagging...")
22
+ from nltk import pos_tag
23
+ print(f"POS tags: {pos_tag(word_tokenize(text))}")
24
+
25
+ print("\nTesting stopwords...")
26
+ from nltk.corpus import stopwords
27
+ print(f"English stopwords: {list(stopwords.words('english'))[:5]}...")
28
+
29
+ print("\n✅ NLTK is working correctly!")
30
+
31
+ except LookupError as e:
32
+ print(f"\n❌ NLTK data not found: {e}")
33
+ nltk_data = setup_nltk()
34
+ print(f"\nPlease run these commands in a Python shell to download NLTK data:")
35
+ print(f"import nltk")
36
+ print(f"nltk.download('punkt', download_dir=r'{nltk_data}')")
37
+ print(f"nltk.download('stopwords', download_dir=r'{nltk_data}')")
38
+ print(f"nltk.download('averaged_perceptron_tagger', download_dir=r'{nltk_data}')")
39
+ print(f"nltk.download('wordnet', download_dir=r'{nltk_data}')")
40
+ print(f"nltk.download('omw-1.4', download_dir=r'{nltk_data}')")
41
+
42
+ except Exception as e:
43
+ print(f"\n❌ Error testing NLTK: {e}")
test_question_generator.py ADDED
@@ -0,0 +1,28 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ from question_generator import QuestionGenerator
2
+
3
+ def test_question_generator():
4
+ print("Testing Question Generator...")
5
+
6
+ # Initialize the question generator
7
+ qg = QuestionGenerator(use_transformers=False) # Using rule-based for faster testing
8
+
9
+ # Sample text about machine learning
10
+ sample_text = """
11
+ Machine learning is a branch of artificial intelligence that focuses on building systems
12
+ that learn from data. These systems can improve their performance over time without being
13
+ explicitly programmed. There are three main types of machine learning: supervised learning,
14
+ unsupervised learning, and reinforcement learning. Supervised learning uses labeled data
15
+ to train models, while unsupervised learning finds patterns in unlabeled data.
16
+ Reinforcement learning involves training an agent to make decisions by rewarding desired
17
+ behaviors and/or punishing undesired ones.
18
+ """
19
+
20
+ print("\nGenerating questions...")
21
+ questions = qg.generate_questions(sample_text, num_questions=3)
22
+
23
+ print("\nGenerated Questions:")
24
+ for i, q in enumerate(questions, 1):
25
+ print(f"{i}. {q}")
26
+
27
+ if __name__ == "__main__":
28
+ test_question_generator()
test_syllabus.py ADDED
@@ -0,0 +1,37 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import logging
2
+ import sys
3
+ import os
4
+
5
+ # Ensure the current directory is in the python path
6
+ sys.path.append(os.getcwd())
7
+
8
+ from syllabus_processor import SyllabusProcessor
9
+
10
+ # Configure logging
11
+ logging.basicConfig(level=logging.INFO)
12
+
13
+ def test_syllabus_parsing():
14
+ syllabus_text = """Unit 1.0 Introduction (9 Lectures) Self-Learning (SL) 1.1 Data for Graphics. 1.2 Design principles 1.3 Value for visualization 1.4 Categorical 1.5 Time series 1.6 statistical data graphics I 1.7 statistical data graphics II 1.8 Introduction to Visualization Tools I 1.9 Introduction to Visualization Tools II
15
+ Unit 2.0 Graphics Pipeline and Aesthetics and Perception (10 Lectures) 2.1 Primitives: vertices edges and triangles 2.2 Model transforms 2.3 Translations 2.4 Rotations 2.5 scaling 2.6 View transform, Perspective transform, window transform 2.7 Graphical Perception Theory 2.8 Experimentation, and the Application 2.9 Graphical Integrity, Layering and Separation 2.10 Color and Information, Using Space"""
16
+
17
+ print("Initializing SyllabusProcessor...")
18
+ try:
19
+ processor = SyllabusProcessor()
20
+
21
+ print("\nParsing syllabus...")
22
+ units = processor.parse_syllabus(syllabus_text)
23
+
24
+ print("\nParsing Results:")
25
+ for unit, topics in units.items():
26
+ print(f"\nUnit: {unit}")
27
+ print(f"Topics found: {len(topics)}")
28
+ for topic in topics:
29
+ print(f" - {topic}")
30
+
31
+ except Exception as e:
32
+ print(f"Error: {e}")
33
+ import traceback
34
+ traceback.print_exc()
35
+
36
+ if __name__ == "__main__":
37
+ test_syllabus_parsing()
text_processor.py ADDED
@@ -0,0 +1,118 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import nltk
2
+ import re
3
+ import string
4
+ from nltk.corpus import stopwords
5
+ from nltk.tokenize import sent_tokenize, word_tokenize
6
+ from nltk.stem import WordNetLemmatizer
7
+
8
+ class TextProcessor:
9
+ def __init__(self):
10
+ """Initialize the text processor with required NLTK data."""
11
+ self.download_nltk_data()
12
+ self.stop_words = set(stopwords.words('english'))
13
+ self.lemmatizer = WordNetLemmatizer()
14
+
15
+ def download_nltk_data(self):
16
+ """Download required NLTK data if not already present."""
17
+ required_data = [
18
+ ('tokenizers/punkt_tab', 'punkt_tab'),
19
+ ('tokenizers/punkt', 'punkt'),
20
+ ('corpora/stopwords', 'stopwords'),
21
+ ('corpora/wordnet', 'wordnet'),
22
+ ('corpora/omw-1.4', 'omw-1.4')
23
+ ]
24
+
25
+ for path, name in required_data:
26
+ try:
27
+ nltk.data.find(path)
28
+ except LookupError:
29
+ print(f"Downloading NLTK {name}...")
30
+ nltk.download(name)
31
+
32
+ def clean_text(self, text):
33
+ """
34
+ Clean and preprocess the input text.
35
+
36
+ Args:
37
+ text (str): Raw input text
38
+
39
+ Returns:
40
+ str: Cleaned text
41
+ """
42
+ # Remove extra whitespace and normalize
43
+ text = re.sub(r'\s+', ' ', text.strip())
44
+
45
+ # Remove common header/footer patterns (e.g., "Page 1 of 10", "Unit 1")
46
+ text = re.sub(r'Page\s+\d+\s+of\s+\d+', '', text, flags=re.IGNORECASE)
47
+ text = re.sub(r'Unit\s+\d+(\.\d+)?', '', text, flags=re.IGNORECASE)
48
+
49
+ # Remove standalone numbers (often page numbers or list markers)
50
+ text = re.sub(r'\b\d+\b', '', text)
51
+
52
+ # Remove special characters but keep sentence structure
53
+ # Keep periods, question marks, exclamation points, commas, and hyphens
54
+ text = re.sub(r'[^\w\s\.\?\!,\-]', '', text)
55
+
56
+ # Remove multiple periods/spaces
57
+ text = re.sub(r'\.+', '.', text)
58
+ text = re.sub(r'\s+', ' ', text).strip()
59
+
60
+ return text
61
+
62
+ def tokenize_sentences(self, text):
63
+ """
64
+ Tokenize text into sentences.
65
+
66
+ Args:
67
+ text (str): Input text
68
+
69
+ Returns:
70
+ list: List of sentences
71
+ """
72
+ sentences = sent_tokenize(text)
73
+ # Filter out very short sentences (less than 5 words)
74
+ filtered_sentences = [s for s in sentences if len(word_tokenize(s)) >= 5]
75
+ return filtered_sentences
76
+
77
+ def tokenize_words(self, text):
78
+ """
79
+ Tokenize text into words and remove stopwords.
80
+
81
+ Args:
82
+ text (str): Input text
83
+
84
+ Returns:
85
+ list: List of processed words
86
+ """
87
+ words = word_tokenize(text.lower())
88
+
89
+ # Remove punctuation and stopwords
90
+ words = [word for word in words if word not in string.punctuation]
91
+ words = [word for word in words if word not in self.stop_words]
92
+
93
+ # Lemmatize words
94
+ words = [self.lemmatizer.lemmatize(word) for word in words]
95
+
96
+ return words
97
+
98
+ def preprocess_text(self, text):
99
+ """
100
+ Complete preprocessing pipeline.
101
+
102
+ Args:
103
+ text (str): Raw input text
104
+
105
+ Returns:
106
+ dict: Processed text components
107
+ """
108
+ cleaned_text = self.clean_text(text)
109
+ sentences = self.tokenize_sentences(cleaned_text)
110
+ words = self.tokenize_words(cleaned_text)
111
+
112
+ return {
113
+ 'cleaned_text': cleaned_text,
114
+ 'sentences': sentences,
115
+ 'words': words,
116
+ 'word_count': len(words),
117
+ 'sentence_count': len(sentences)
118
+ }
verify_generation.py ADDED
@@ -0,0 +1,124 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import logging
2
+ from exam_question_system import ExamQuestionSystem
3
+ from option_generator import OptionGenerator
4
+
5
+ # Configure logging
6
+ logging.basicConfig(level=logging.INFO)
7
+
8
+ def verify_generation():
9
+ # Mock content
10
+ content = """
11
+ Data visualization is the graphical representation of information and data.
12
+ By using visual elements like charts, graphs, and maps, data visualization
13
+ tools provide an accessible way to see and understand trends, outliers, and
14
+ patterns in data. In the world of Big Data, data visualization tools and
15
+ technologies are essential to analyze massive amounts of information and
16
+ make data-driven decisions.
17
+
18
+ Design principles in data visualization include understanding the audience,
19
+ choosing the right chart type, and using color effectively. Good design
20
+ makes complex data more accessible, understandable, and usable.
21
+
22
+ Exploratory Data Analysis (EDA) is an approach to analyzing data sets to
23
+ summarize their main characteristics, often with visual methods. A statistical
24
+ model can be used or not, but primarily EDA is for seeing what the data can
25
+ tell us beyond the formal modeling or hypothesis testing task.
26
+ """
27
+
28
+ print("Initializing ExamQuestionSystem...")
29
+ system = ExamQuestionSystem(use_transformers=False) # Use rule-based for speed in test
30
+
31
+ print("\nGenerating questions (Target: 2 MCQ, 1 Short, 1 Long)...")
32
+ # We simulate the logic in app.py
33
+ num_mcq = 2
34
+ num_short = 1
35
+ num_long = 1
36
+ total_needed = num_mcq + num_short + num_long
37
+
38
+ results = system.generate_exam_questions(
39
+ input_text=content,
40
+ max_questions=total_needed,
41
+ include_mcq=False,
42
+ syllabus_text=content
43
+ )
44
+
45
+ all_questions = results.get('questions', [])
46
+ print(f"\nTotal questions generated: {len(all_questions)}")
47
+
48
+ # Simulate app.py distribution logic
49
+ generated_questions = {
50
+ 'mcq_questions': [],
51
+ 'short_questions': [],
52
+ 'long_questions': []
53
+ }
54
+
55
+ # Filter out questions that are too simple for Long answers
56
+ long_candidates = [q for q in all_questions if len(q.get('context', '').split()) > 10]
57
+ short_candidates = [q for q in all_questions if q not in long_candidates]
58
+
59
+ # If we don't have enough long candidates, take from short
60
+ if len(long_candidates) < num_long:
61
+ needed = num_long - len(long_candidates)
62
+ long_candidates.extend(short_candidates[:needed])
63
+ short_candidates = short_candidates[needed:]
64
+
65
+ # 3. Process Long Questions
66
+ for _ in range(num_long):
67
+ if long_candidates:
68
+ q = long_candidates.pop(0)
69
+ q['type'] = 'long_answer'
70
+ generated_questions['long_questions'].append(q)
71
+ if q in all_questions:
72
+ all_questions.remove(q)
73
+
74
+ # 2. Process Short Questions
75
+ for _ in range(num_short):
76
+ if short_candidates:
77
+ q = short_candidates.pop(0)
78
+ q['type'] = 'short_answer'
79
+ generated_questions['short_questions'].append(q)
80
+ if q in all_questions:
81
+ all_questions.remove(q)
82
+ elif all_questions:
83
+ q = all_questions.pop(0)
84
+ q['type'] = 'short_answer'
85
+ generated_questions['short_questions'].append(q)
86
+
87
+ # 1. Process MCQs
88
+ global_keywords = [k[1] for k in results.get('keywords', [])]
89
+ print(f"\nGlobal Keywords (Cleaned): {global_keywords}")
90
+
91
+ for _ in range(num_mcq):
92
+ if all_questions:
93
+ q = all_questions.pop(0)
94
+ try:
95
+ mcq_data = system.option_generator.create_mcq_options(
96
+ q['question'],
97
+ q['context'],
98
+ correct_answer=q.get('correct_answer'),
99
+ global_keywords=global_keywords
100
+ )
101
+ if mcq_data and 'options' in mcq_data:
102
+ q.update(mcq_data)
103
+ q['type'] = 'mcq'
104
+ generated_questions['mcq_questions'].append(q)
105
+ except Exception as e:
106
+ print(f"Error generating options: {e}")
107
+
108
+ # Print Results
109
+ print("\n--- Generation Results ---")
110
+ print(f"MCQs: {len(generated_questions['mcq_questions'])}")
111
+ for q in generated_questions['mcq_questions']:
112
+ print(f" Q: {q['question']}")
113
+ print(f" Options: {q.get('options')}")
114
+
115
+ print(f"\nShort Questions: {len(generated_questions['short_questions'])}")
116
+ for q in generated_questions['short_questions']:
117
+ print(f" Q: {q['question']}")
118
+
119
+ print(f"\nLong Questions: {len(generated_questions['long_questions'])}")
120
+ for q in generated_questions['long_questions']:
121
+ print(f" Q: {q['question']}")
122
+
123
+ if __name__ == "__main__":
124
+ verify_generation()