Update app.py
Browse files
app.py
CHANGED
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@@ -6,183 +6,39 @@ import pandas as pd
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import requests
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import random
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import urllib.parse
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import spacy
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from sklearn.metrics.pairwise import cosine_similarity
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import numpy as np
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from typing import List, Dict
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from tempfile import NamedTemporaryFile
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from bs4 import BeautifulSoup
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from
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from langchain_community.vectorstores import FAISS
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from langchain_community.document_loaders import PyPDFLoader
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from langchain_core.output_parsers import StrOutputParser
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from langchain_community.embeddings import HuggingFaceEmbeddings
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from langchain_community.llms import HuggingFaceHub
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from langchain_core.documents import Document
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from
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from
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from llama_cpp import Llama
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from llama_cpp_agent.llm_agent import LlamaCppAgent
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from llama_cpp_agent.messages_formatter import MessagesFormatterType
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from llama_cpp_agent.providers.llama_cpp_endpoint_provider import LlamaCppEndpointSettings
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huggingface_token = os.environ.get("HUGGINGFACE_TOKEN")
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llama_cloud_api_key = os.environ.get("LLAMA_CLOUD_API_KEY")
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# Load SentenceTransformer model
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sentence_model = SentenceTransformer('paraphrase-MiniLM-L6-v2')
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def load_spacy_model():
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try:
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# Try to load the model
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return spacy.load("en_core_web_sm")
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except OSError:
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# If loading fails, download the model
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os.system("python -m spacy download en_core_web_sm")
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# Try loading again
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return spacy.load("en_core_web_sm")
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# Load spaCy model
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nlp = load_spacy_model()
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class EnhancedContextDrivenChatbot:
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def __init__(self, history_size: int = 10, max_history_chars: int = 5000):
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self.history = []
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self.history_size = history_size
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self.max_history_chars = max_history_chars
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self.entity_tracker = {}
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self.conversation_context = ""
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self.model = None
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self.last_instructions = None
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def add_to_history(self, text: str):
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self.history.append(text)
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while len(' '.join(self.history)) > self.max_history_chars or len(self.history) > self.history_size:
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self.history.pop(0)
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# Update entity tracker
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doc = nlp(text)
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for ent in doc.ents:
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if ent.label_ not in self.entity_tracker:
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self.entity_tracker[ent.label_] = set()
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self.entity_tracker[ent.label_].add(ent.text)
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# Update conversation context
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self.conversation_context += f" {text}"
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self.conversation_context = ' '.join(self.conversation_context.split()[-100:]) # Keep last 100 words
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def get_context(self):
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return self.conversation_context
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def is_follow_up_question(self, question):
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doc = nlp(question.lower())
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follow_up_indicators = set(['it', 'this', 'that', 'these', 'those', 'he', 'she', 'they', 'them'])
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return any(token.text in follow_up_indicators for token in doc) or question.strip().startswith("What about")
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for pattern in instruction_patterns:
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match = re.match(pattern, text, re.IGNORECASE)
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if match:
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return match.group(1).strip(), match.group(2).strip()
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return text, None
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def get_most_relevant_context(self, question):
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if not self.history:
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return question
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# Create a combined context from history
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combined_context = self.get_context()
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# Get embeddings
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context_embedding = sentence_model.encode([combined_context])[0]
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question_embedding = sentence_model.encode([question])[0]
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# Calculate similarity
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similarity = cosine_similarity([context_embedding], [question_embedding])[0][0]
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# If similarity is high, it's likely a follow-up question
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if similarity > 0.5: # This threshold can be adjusted
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return f"{combined_context} {question}"
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# Otherwise, it might be a new topic
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return question
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def rephrase_query(self, question, instructions=None):
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if not self.model:
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return question # Return original question if no model is available
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instruction_prompt = f"Instructions: {instructions}\n" if instructions else ""
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prompt = f"""
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Given the conversation context, the current question, and any provided instructions, rephrase the question to include relevant context and rephrase it to more search-engine-friendly query:
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Conversation context: {self.get_context()}
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Current question: {question}
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{instruction_prompt}
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Rephrased question:
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"""
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rephrased_question = generate_chunked_response(self.model, prompt)
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return rephrased_question.strip()
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def process_question(self, question):
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core_question, instructions = self.extract_instructions(question)
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if self.is_follow_up_question(core_question):
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contextualized_question = self.get_most_relevant_context(core_question)
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contextualized_question = self.rephrase_query(contextualized_question, instructions)
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else:
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contextualized_question = core_question
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topics = self.extract_topics(contextualized_question)
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self.add_to_history(question)
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self.last_instructions = instructions
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return contextualized_question, topics, self.entity_tracker, instructions
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# Initialize LlamaParse
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llama_parser = LlamaParse(
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api_key=llama_cloud_api_key,
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result_type="markdown",
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num_workers=4,
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verbose=True,
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language="en",
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)
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def load_document(file: NamedTemporaryFile
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loader = PyPDFLoader(file.name)
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return loader.load_and_split()
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elif parser == "llamaparse":
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try:
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documents = llama_parser.load_data(file.name)
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return [Document(page_content=doc.text, metadata={"source": file.name}) for doc in documents]
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except Exception as e:
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print(f"Error using Llama Parse: {str(e)}")
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print("Falling back to PyPDF parser")
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loader = PyPDFLoader(file.name)
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return loader.load_and_split()
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else:
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raise ValueError("Invalid parser specified. Use 'pypdf' or 'llamaparse'.")
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def update_vectors(files
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if not files:
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return "Please upload at least one PDF file."
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all_data = []
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for file in files:
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data = load_document(file
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all_data.extend(data)
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total_chunks += len(data)
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database.save_local("faiss_database")
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return f"Vector store updated successfully. Processed {total_chunks} chunks from {len(files)} files
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def get_embeddings():
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return HuggingFaceEmbeddings(model_name="sentence-transformers/all-mpnet-base-v2")
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else:
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return "No cache to clear."
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def get_model(temperature, top_p, repetition_penalty):
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return HuggingFaceHub(
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repo_id="mistralai/Mistral-7B-Instruct-v0.3",
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model_kwargs={
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"temperature": temperature,
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"top_p": top_p,
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"repetition_penalty": repetition_penalty,
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"max_length": 800
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},
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huggingfacehub_api_token=huggingface_token
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)
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MAX_PROMPT_CHARS = 20000 # Adjust based on your model's limitations
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def chunk_text(text: str, max_chunk_size: int = 800) -> List[str]:
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chunks = []
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current_chunk = ""
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for sentence in re.split(r'(?<=[.!?])\s+', text):
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if len(current_chunk) + len(sentence) > max_chunk_size:
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chunks.append(current_chunk.strip())
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current_chunk = sentence
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else:
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current_chunk += " " + sentence
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if current_chunk:
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chunks.append(current_chunk.strip())
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return chunks
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def get_most_relevant_chunks(question: str, chunks: List[str], top_k: int = 3) -> List[str]:
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question_embedding = sentence_model.encode([question])[0]
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chunk_embeddings = sentence_model.encode(chunks)
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similarities = cosine_similarity([question_embedding], chunk_embeddings)[0]
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top_indices = np.argsort(similarities)[-top_k:]
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return [chunks[i] for i in top_indices]
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def generate_chunked_response(model, prompt, max_tokens=800, max_chunks=5):
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full_response = ""
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for i in range(max_chunks):
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try:
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chunk = model(prompt + full_response, max_new_tokens=max_tokens)
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chunk = chunk.strip()
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if chunk.endswith((".", "!", "?")):
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full_response += chunk
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break
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full_response += chunk
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except Exception as e:
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print(f"Error in generate_chunked_response: {e}")
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break
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return full_response.strip()
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def extract_text_from_webpage(html):
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soup = BeautifulSoup(html, 'html.parser')
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for script in soup(["script", "style"]):
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all_results = []
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max_chars_per_page = 8000
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print(f"Starting Google search for term: '{term}'")
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with requests.Session() as session:
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while start < num_results:
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try:
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verify=ssl_verify,
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)
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resp.raise_for_status()
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print(f"Successfully retrieved search results page (start={start})")
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except requests.exceptions.RequestException as e:
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print(f"Error retrieving search results: {e}")
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break
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soup = BeautifulSoup(resp.text, "html.parser")
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if not result_block:
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print("No results found on this page")
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break
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print(f"Found {len(result_block)} results on this page")
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for result in result_block:
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link = result.find("a", href=True)
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if link:
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link = link["href"]
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print(f"Processing link: {link}")
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try:
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webpage = session.get(link, headers=headers, timeout=timeout)
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webpage.raise_for_status()
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if len(visible_text) > max_chars_per_page:
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visible_text = visible_text[:max_chars_per_page] + "..."
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all_results.append({"link": link, "text": visible_text})
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print(f"Successfully extracted text from {link}")
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except requests.exceptions.RequestException as e:
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print(f"Error retrieving webpage content: {e}")
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all_results.append({"link": link, "text": None})
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else:
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print("No link found for this result")
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all_results.append({"link": None, "text": None})
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start += len(result_block)
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print(f"Search completed. Total results: {len(all_results)}")
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if not all_results:
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print("No search results found. Returning a default message.")
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return [{"link": None, "text": "No information found in the web search results."}]
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return all_results
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def
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ranked_indices = similarities.argsort()[::-1][:top_k]
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return [documents[i] for i in ranked_indices]
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def prepare_context(query: str, documents: List[Document], max_tokens: int) -> str:
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reranked_docs = rerank_documents(query, documents)
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context = ""
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for doc in reranked_docs:
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doc_content = f"Source: {doc.metadata.get('source', 'Unknown')}\nContent: {doc.page_content}\n\n"
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if estimate_tokens(context + doc_content) > max_tokens:
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break
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context += doc_content
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return truncate_text(context, max_tokens)
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# Initialize LlamaCppAgent
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def initialize_llama_cpp_agent():
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main_model = LlamaCppEndpointSettings(
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completions_endpoint_url="http://127.0.0.1:8080/completion"
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)
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llama_cpp_agent = LlamaCppAgent(
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main_model,
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debug_output=False,
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system_prompt="You are an AI assistant designed to help with RAG tasks.",
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predefined_messages_formatter_type=MessagesFormatterType.CHATML
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)
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return llama_cpp_agent
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# Modify the ask_question function to use LlamaCppAgent
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def ask_question(question, temperature, top_p, repetition_penalty, web_search, chatbot, user_instructions):
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if not question:
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return "Please enter a question."
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llama_cpp_agent = initialize_llama_cpp_agent()
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model = get_model(temperature, top_p, repetition_penalty)
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# Update the chatbot's model
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chatbot.model = model
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if os.path.exists("faiss_database"):
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database = FAISS.load_local("faiss_database", embed, allow_dangerous_deserialization=True)
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else:
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max_output_tokens = 800
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if web_search:
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contextualized_question, topics, entity_tracker, _ = chatbot.process_question(question)
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all_answers = []
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for attempt in range(max_attempts):
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try:
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web_docs = [Document(page_content=result["text"], metadata={"source": result["link"]}) for result in search_results if result["text"]]
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if not web_docs:
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return "I'm sorry, but I couldn't find any relevant information from the web search."
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if database is None:
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database = FAISS.from_documents(web_docs, embed)
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else:
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database.add_documents(web_docs)
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| 443 |
-
|
| 444 |
-
database.save_local("faiss_database")
|
| 445 |
-
|
| 446 |
-
context_str = prepare_context(contextualized_question, web_docs, max_input_tokens // 2)
|
| 447 |
-
|
| 448 |
-
instruction_prompt = f"User Instructions: {user_instructions}\n" if user_instructions else ""
|
| 449 |
-
|
| 450 |
-
prompt_template = f"""
|
| 451 |
-
Answer the question based on the following web search results, conversation context, entity information, and user instructions:
|
| 452 |
-
Web Search Results:
|
| 453 |
-
{{context}}
|
| 454 |
-
Conversation Context: {{conv_context}}
|
| 455 |
-
Current Question: {{question}}
|
| 456 |
-
Topics: {{topics}}
|
| 457 |
-
Entity Information: {{entities}}
|
| 458 |
-
{instruction_prompt}
|
| 459 |
-
Provide a concise and relevant answer to the question.
|
| 460 |
-
"""
|
| 461 |
-
|
| 462 |
-
current_conv_context = truncate_text(chatbot.get_context(), max_input_tokens // 4)
|
| 463 |
-
current_topics = topics[:5]
|
| 464 |
-
current_entities = {k: list(v)[:3] for k, v in entity_tracker.items()}
|
| 465 |
-
|
| 466 |
-
formatted_prompt = prompt_template.format(
|
| 467 |
-
context=context_str,
|
| 468 |
-
conv_context=current_conv_context,
|
| 469 |
-
question=question,
|
| 470 |
-
topics=", ".join(current_topics),
|
| 471 |
-
entities=json.dumps(current_entities)
|
| 472 |
-
)
|
| 473 |
-
|
| 474 |
-
if estimate_tokens(formatted_prompt) > max_input_tokens:
|
| 475 |
-
formatted_prompt = truncate_text(formatted_prompt, max_input_tokens)
|
| 476 |
-
|
| 477 |
-
try:
|
| 478 |
-
# Use LlamaCppAgent for initial response generation
|
| 479 |
-
initial_response = llama_cpp_agent.get_chat_response(formatted_prompt, temperature=temperature)
|
| 480 |
-
|
| 481 |
-
# Use generate_chunked_response for further refinement if needed
|
| 482 |
-
full_response = generate_chunked_response(model, initial_response, max_tokens=max_output_tokens)
|
| 483 |
-
|
| 484 |
-
answer = extract_answer(full_response, user_instructions)
|
| 485 |
-
all_answers.append(answer)
|
| 486 |
-
break
|
| 487 |
-
except Exception as e:
|
| 488 |
-
print(f"Error in response generation: {e}")
|
| 489 |
-
if attempt == max_attempts - 1:
|
| 490 |
-
all_answers.append(f"I apologize, but I encountered an error while generating the response. Please try again with a simpler question.")
|
| 491 |
-
|
| 492 |
-
except Exception as e:
|
| 493 |
-
print(f"Error in ask_question (attempt {attempt + 1}): {e}")
|
| 494 |
-
if attempt == max_attempts - 1:
|
| 495 |
-
all_answers.append(f"I apologize, but an unexpected error occurred. Please try again with a different question or check your internet connection.")
|
| 496 |
-
|
| 497 |
-
answer = "\n\n".join(all_answers)
|
| 498 |
-
sources = set(doc.metadata['source'] for doc in web_docs)
|
| 499 |
-
sources_section = "\n\nSources:\n" + "\n".join(f"- {source}" for source in sources)
|
| 500 |
-
answer += sources_section
|
| 501 |
-
|
| 502 |
-
chatbot.add_to_history(answer)
|
| 503 |
-
|
| 504 |
-
return answer
|
| 505 |
-
|
| 506 |
-
else: # PDF document chat
|
| 507 |
-
for attempt in range(max_attempts):
|
| 508 |
-
try:
|
| 509 |
-
if database is None:
|
| 510 |
-
return "No documents available. Please upload PDF documents to answer questions."
|
| 511 |
-
|
| 512 |
-
retriever = database.as_retriever(search_kwargs={"k": 5})
|
| 513 |
-
relevant_docs = retriever.get_relevant_documents(question)
|
| 514 |
-
|
| 515 |
-
context_str = prepare_context(question, relevant_docs, max_input_tokens // 2)
|
| 516 |
-
|
| 517 |
-
instruction_prompt = f"User Instructions: {user_instructions}\n" if user_instructions else ""
|
| 518 |
-
|
| 519 |
-
prompt_template = f"""
|
| 520 |
-
Answer the question based on the following context from the PDF document:
|
| 521 |
-
Context:
|
| 522 |
-
{{context}}
|
| 523 |
-
Question: {{question}}
|
| 524 |
-
{instruction_prompt}
|
| 525 |
-
Provide a summarized and direct answer to the question.
|
| 526 |
-
"""
|
| 527 |
-
|
| 528 |
-
formatted_prompt = prompt_template.format(context=context_str, question=question)
|
| 529 |
-
|
| 530 |
-
if estimate_tokens(formatted_prompt) > max_input_tokens:
|
| 531 |
-
formatted_prompt = truncate_text(formatted_prompt, max_input_tokens)
|
| 532 |
-
|
| 533 |
-
try:
|
| 534 |
-
# Use LlamaCppAgent for initial response generation
|
| 535 |
-
initial_response = llama_cpp_agent.get_chat_response(formatted_prompt, temperature=temperature)
|
| 536 |
-
|
| 537 |
-
# Use generate_chunked_response for further refinement if needed
|
| 538 |
-
full_response = generate_chunked_response(model, initial_response, max_tokens=max_output_tokens)
|
| 539 |
-
|
| 540 |
-
answer = extract_answer(full_response, user_instructions)
|
| 541 |
-
return answer
|
| 542 |
-
except Exception as e:
|
| 543 |
-
print(f"Error in response generation: {e}")
|
| 544 |
-
if attempt == max_attempts - 1:
|
| 545 |
-
return f"I apologize, but I encountered an error while generating the response. Please try again with a simpler question."
|
| 546 |
-
|
| 547 |
-
except Exception as e:
|
| 548 |
-
print(f"Error in ask_question (attempt {attempt + 1}): {e}")
|
| 549 |
-
if attempt == max_attempts - 1:
|
| 550 |
-
return f"I apologize, but an unexpected error occurred. Please try again with a different question."
|
| 551 |
|
| 552 |
-
|
|
|
|
|
|
|
|
|
|
| 553 |
|
|
|
|
| 554 |
|
| 555 |
-
|
| 556 |
-
|
| 557 |
-
r"Provide a concise and direct answer to the question without mentioning the web search or these instructions:",
|
| 558 |
-
r"Provide a concise and direct answer to the question:",
|
| 559 |
-
r"Provide a concise and relevant answer to the question.",
|
| 560 |
-
r"Answer:",
|
| 561 |
-
r"Provide a summarized and direct answer to the question.",
|
| 562 |
-
r"If the context doesn't contain relevant information, state that the information is not available in the document.",
|
| 563 |
-
r"Provide a summarized and direct answer to the original question without mentioning the web search or these instructions:",
|
| 564 |
-
r"Do not include any source information in your answer."
|
| 565 |
-
]
|
| 566 |
|
| 567 |
-
|
| 568 |
-
|
| 569 |
-
|
| 570 |
-
|
| 571 |
-
break
|
| 572 |
-
|
| 573 |
-
# Remove any remaining instruction-like phrases
|
| 574 |
-
cleanup_patterns = [
|
| 575 |
-
r"without mentioning the web search or these instructions\.",
|
| 576 |
-
r"Do not include any source information in your answer\.",
|
| 577 |
-
r"If the context doesn't contain relevant information, state that the information is not available in the document\."
|
| 578 |
-
]
|
| 579 |
|
| 580 |
-
|
| 581 |
-
full_response = re.sub(pattern, "", full_response, flags=re.IGNORECASE).strip()
|
| 582 |
-
|
| 583 |
-
# Remove the user instructions if present
|
| 584 |
-
if instructions:
|
| 585 |
-
instruction_pattern = rf"User Instructions:\s*{re.escape(instructions)}.*?\n"
|
| 586 |
-
full_response = re.sub(instruction_pattern, "", full_response, flags=re.IGNORECASE | re.DOTALL)
|
| 587 |
-
|
| 588 |
-
return full_response.strip()
|
| 589 |
|
| 590 |
# Gradio interface
|
| 591 |
-
|
| 592 |
-
|
|
|
|
|
|
|
| 593 |
|
| 594 |
with gr.Row():
|
| 595 |
file_input = gr.Files(label="Upload your PDF documents", file_types=[".pdf"])
|
| 596 |
-
parser_dropdown = gr.Dropdown(choices=["pypdf", "llamaparse"], label="Select PDF Parser", value="pypdf")
|
| 597 |
update_button = gr.Button("Upload PDF")
|
| 598 |
|
| 599 |
update_output = gr.Textbox(label="Update Status")
|
| 600 |
-
update_button.click(update_vectors, inputs=[file_input
|
| 601 |
|
| 602 |
with gr.Row():
|
| 603 |
with gr.Column(scale=2):
|
| 604 |
chatbot = gr.Chatbot(label="Conversation")
|
| 605 |
-
|
| 606 |
-
instructions_input = gr.Textbox(label="Instructions for response (optional)", placeholder="Enter any specific instructions for the response here")
|
| 607 |
submit_button = gr.Button("Submit")
|
| 608 |
with gr.Column(scale=1):
|
| 609 |
-
|
| 610 |
-
|
| 611 |
-
|
| 612 |
-
|
| 613 |
-
|
| 614 |
-
|
| 615 |
-
|
| 616 |
-
|
| 617 |
-
|
| 618 |
-
|
| 619 |
-
|
| 620 |
-
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 621 |
|
| 622 |
-
submit_button.click(chat, inputs=[question_input, chatbot, temperature_slider, top_p_slider, repetition_penalty_slider, web_search_checkbox, instructions_input], outputs=[question_input, chatbot])
|
| 623 |
-
|
| 624 |
clear_button = gr.Button("Clear Cache")
|
| 625 |
clear_output = gr.Textbox(label="Cache Status")
|
| 626 |
clear_button.click(clear_cache, inputs=[], outputs=clear_output)
|
|
|
|
| 6 |
import requests
|
| 7 |
import random
|
| 8 |
import urllib.parse
|
|
|
|
|
|
|
|
|
|
|
|
|
| 9 |
from tempfile import NamedTemporaryFile
|
| 10 |
+
from typing import List
|
| 11 |
from bs4 import BeautifulSoup
|
| 12 |
+
import logging
|
| 13 |
+
|
| 14 |
+
from langchain_community.llms import HuggingFaceHub
|
| 15 |
from langchain_community.vectorstores import FAISS
|
| 16 |
from langchain_community.document_loaders import PyPDFLoader
|
|
|
|
| 17 |
from langchain_community.embeddings import HuggingFaceEmbeddings
|
|
|
|
| 18 |
from langchain_core.documents import Document
|
| 19 |
+
from langchain.chains import LLMChain
|
| 20 |
+
from langchain.prompts import PromptTemplate
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 21 |
|
| 22 |
+
# Global variables
|
| 23 |
huggingface_token = os.environ.get("HUGGINGFACE_TOKEN")
|
|
|
|
|
|
|
|
|
|
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|
|
|
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|
|
|
|
|
|
|
|
|
|
| 24 |
|
| 25 |
+
def get_model(temperature, top_p, repetition_penalty):
|
| 26 |
+
return HuggingFaceHub(
|
| 27 |
+
repo_id="mistralai/Mistral-7B-Instruct-v0.3",
|
| 28 |
+
model_kwargs={
|
| 29 |
+
"temperature": temperature,
|
| 30 |
+
"top_p": top_p,
|
| 31 |
+
"repetition_penalty": repetition_penalty,
|
| 32 |
+
"max_length": 1000
|
| 33 |
+
},
|
| 34 |
+
huggingfacehub_api_token=huggingface_token
|
| 35 |
+
)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
| 36 |
|
| 37 |
+
def load_document(file: NamedTemporaryFile) -> List[Document]:
|
| 38 |
+
loader = PyPDFLoader(file.name)
|
| 39 |
+
return loader.load_and_split()
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 40 |
|
| 41 |
+
def update_vectors(files):
|
| 42 |
if not files:
|
| 43 |
return "Please upload at least one PDF file."
|
| 44 |
|
|
|
|
| 47 |
|
| 48 |
all_data = []
|
| 49 |
for file in files:
|
| 50 |
+
data = load_document(file)
|
| 51 |
all_data.extend(data)
|
| 52 |
total_chunks += len(data)
|
| 53 |
|
|
|
|
| 59 |
|
| 60 |
database.save_local("faiss_database")
|
| 61 |
|
| 62 |
+
return f"Vector store updated successfully. Processed {total_chunks} chunks from {len(files)} files."
|
| 63 |
|
| 64 |
def get_embeddings():
|
| 65 |
return HuggingFaceEmbeddings(model_name="sentence-transformers/all-mpnet-base-v2")
|
|
|
|
| 71 |
else:
|
| 72 |
return "No cache to clear."
|
| 73 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
| 74 |
def extract_text_from_webpage(html):
|
| 75 |
soup = BeautifulSoup(html, 'html.parser')
|
| 76 |
for script in soup(["script", "style"]):
|
|
|
|
| 96 |
all_results = []
|
| 97 |
max_chars_per_page = 8000
|
| 98 |
|
|
|
|
|
|
|
| 99 |
with requests.Session() as session:
|
| 100 |
while start < num_results:
|
| 101 |
try:
|
|
|
|
| 117 |
verify=ssl_verify,
|
| 118 |
)
|
| 119 |
resp.raise_for_status()
|
|
|
|
| 120 |
except requests.exceptions.RequestException as e:
|
| 121 |
print(f"Error retrieving search results: {e}")
|
| 122 |
break
|
| 123 |
|
| 124 |
soup = BeautifulSoup(resp.text, "html.parser")
|
| 125 |
+
result_block = soup.find_all("div", attrs={"class": "g"})
|
| 126 |
if not result_block:
|
|
|
|
| 127 |
break
|
| 128 |
|
|
|
|
| 129 |
for result in result_block:
|
| 130 |
link = result.find("a", href=True)
|
| 131 |
if link:
|
| 132 |
link = link["href"]
|
|
|
|
| 133 |
try:
|
| 134 |
webpage = session.get(link, headers=headers, timeout=timeout)
|
| 135 |
webpage.raise_for_status()
|
|
|
|
| 137 |
if len(visible_text) > max_chars_per_page:
|
| 138 |
visible_text = visible_text[:max_chars_per_page] + "..."
|
| 139 |
all_results.append({"link": link, "text": visible_text})
|
|
|
|
| 140 |
except requests.exceptions.RequestException as e:
|
| 141 |
print(f"Error retrieving webpage content: {e}")
|
| 142 |
all_results.append({"link": link, "text": None})
|
| 143 |
else:
|
|
|
|
| 144 |
all_results.append({"link": None, "text": None})
|
| 145 |
start += len(result_block)
|
| 146 |
|
|
|
|
|
|
|
| 147 |
if not all_results:
|
|
|
|
| 148 |
return [{"link": None, "text": "No information found in the web search results."}]
|
| 149 |
|
| 150 |
return all_results
|
| 151 |
|
| 152 |
+
def duckduckgo_search(query):
|
| 153 |
+
# Implement DuckDuckGo search here
|
| 154 |
+
# This is a placeholder. You'll need to implement the actual DuckDuckGo search functionality
|
| 155 |
+
return [{"link": "https://example.com", "text": "Example search result from DuckDuckGo"}]
|
| 156 |
+
|
| 157 |
+
def respond(
|
| 158 |
+
message,
|
| 159 |
+
history: list[tuple[str, str]],
|
| 160 |
+
temperature,
|
| 161 |
+
top_p,
|
| 162 |
+
repetition_penalty,
|
| 163 |
+
max_tokens,
|
| 164 |
+
search_engine
|
| 165 |
+
):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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model = get_model(temperature, top_p, repetition_penalty)
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| 167 |
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+
# Perform web search
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if search_engine == "Google":
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+
search_results = google_search(message)
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else:
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search_results = duckduckgo_search(message)
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| 174 |
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# Check if we have a FAISS database
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if os.path.exists("faiss_database"):
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embed = get_embeddings()
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database = FAISS.load_local("faiss_database", embed, allow_dangerous_deserialization=True)
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+
retriever = database.as_retriever()
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+
relevant_docs = retriever.get_relevant_documents(message)
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context_str = "\n".join([doc.page_content for doc in relevant_docs])
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| 181 |
+
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# Use the context in the prompt
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prompt_template = f"""
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Answer the question based on the following context and web search results:
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Context from documents:
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{context_str}
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+
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Web Search Results:
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{{search_results}}
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+
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Question: {{message}}
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+
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If the context and web search results don't contain relevant information, state that the information is not available.
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Provide a concise and direct answer to the question.
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"""
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else:
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+
prompt_template = """
|
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+
Answer the question based on the following web search results:
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+
Web Search Results:
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| 200 |
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{search_results}
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| 201 |
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| 202 |
+
Question: {message}
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| 203 |
+
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| 204 |
+
If the web search results don't contain relevant information, state that the information is not available.
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| 205 |
+
Provide a concise and direct answer to the question.
|
| 206 |
+
"""
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|
| 207 |
|
| 208 |
+
prompt = PromptTemplate(
|
| 209 |
+
input_variables=["search_results", "message"],
|
| 210 |
+
template=prompt_template
|
| 211 |
+
)
|
| 212 |
|
| 213 |
+
chain = LLMChain(llm=model, prompt=prompt)
|
| 214 |
|
| 215 |
+
search_results_text = "\n".join([f"- {result['text']}" for result in search_results if result['text']])
|
| 216 |
+
response = chain.run(search_results=search_results_text, message=message)
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|
| 217 |
|
| 218 |
+
# Add sources
|
| 219 |
+
sources = set(result["link"] for result in search_results if result["link"])
|
| 220 |
+
sources_section = "\n\nSources:\n" + "\n".join(f"- {source}" for source in sources)
|
| 221 |
+
response += sources_section
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|
| 222 |
|
| 223 |
+
return response
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|
| 224 |
|
| 225 |
# Gradio interface
|
| 226 |
+
demo = gr.Blocks()
|
| 227 |
+
|
| 228 |
+
with demo:
|
| 229 |
+
gr.Markdown("# Chat with your PDF documents and Web Search")
|
| 230 |
|
| 231 |
with gr.Row():
|
| 232 |
file_input = gr.Files(label="Upload your PDF documents", file_types=[".pdf"])
|
|
|
|
| 233 |
update_button = gr.Button("Upload PDF")
|
| 234 |
|
| 235 |
update_output = gr.Textbox(label="Update Status")
|
| 236 |
+
update_button.click(update_vectors, inputs=[file_input], outputs=update_output)
|
| 237 |
|
| 238 |
with gr.Row():
|
| 239 |
with gr.Column(scale=2):
|
| 240 |
chatbot = gr.Chatbot(label="Conversation")
|
| 241 |
+
message_input = gr.Textbox(label="Enter your message")
|
|
|
|
| 242 |
submit_button = gr.Button("Submit")
|
| 243 |
with gr.Column(scale=1):
|
| 244 |
+
temperature = gr.Slider(minimum=0.1, maximum=1.0, value=0.7, step=0.1, label="Temperature")
|
| 245 |
+
top_p = gr.Slider(minimum=0.1, maximum=1.0, value=0.95, step=0.05, label="Top-p")
|
| 246 |
+
repetition_penalty = gr.Slider(minimum=1.0, maximum=2.0, value=1.1, step=0.1, label="Repetition penalty")
|
| 247 |
+
max_tokens = gr.Slider(minimum=1, maximum=1000, value=500, step=1, label="Max tokens")
|
| 248 |
+
search_engine = gr.Dropdown(["DuckDuckGo", "Google"], value="DuckDuckGo", label="Search Engine")
|
| 249 |
+
|
| 250 |
+
submit_button.click(
|
| 251 |
+
respond,
|
| 252 |
+
inputs=[
|
| 253 |
+
message_input,
|
| 254 |
+
chatbot,
|
| 255 |
+
temperature,
|
| 256 |
+
top_p,
|
| 257 |
+
repetition_penalty,
|
| 258 |
+
max_tokens,
|
| 259 |
+
search_engine
|
| 260 |
+
],
|
| 261 |
+
outputs=chatbot
|
| 262 |
+
)
|
| 263 |
|
|
|
|
|
|
|
| 264 |
clear_button = gr.Button("Clear Cache")
|
| 265 |
clear_output = gr.Textbox(label="Cache Status")
|
| 266 |
clear_button.click(clear_cache, inputs=[], outputs=clear_output)
|