Delete demo.py
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demo.py
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import os
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os.environ["CUDA_VISIBLE_DEVICES"] = "-1"
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from huggingface_hub import hf_hub_download
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import gradio as gr
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from transformers import AutoTokenizer, AutoModelForSequenceClassification
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import torch
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import pickle
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import numpy as np
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from tensorflow.keras.models import load_model
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from tensorflow.keras.preprocessing.sequence import pad_sequences
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import re
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svm_repo_id = "HighFive-OPJ/Deep_Learning"
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svm_model_path = hf_hub_download(repo_id=svm_repo_id, filename="svm_model.pkl")
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with open(svm_model_path, "rb") as f:
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svm_model = pickle.load(f)
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vectorizer_path = hf_hub_download(repo_id=svm_repo_id, filename="vectorizer.pkl")
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with open(vectorizer_path, "rb") as f:
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vectorizer = pickle.load(f)
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lstm_repo_id = "HighFive-OPJ/Deep_Learning"
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lstm_model_path = hf_hub_download(repo_id=lstm_repo_id, filename="LSTM_model.h5")
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lstm_model = load_model(lstm_model_path)
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lstm_tokenizer_path = hf_hub_download(repo_id=lstm_repo_id, filename="my_tokenizer.pkl")
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with open(lstm_tokenizer_path, "rb") as f:
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lstm_tokenizer = pickle.load(f)
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bert_tokenizer = AutoTokenizer.from_pretrained("nlptown/bert-base-multilingual-uncased-sentiment")
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bert_model = AutoModelForSequenceClassification.from_pretrained("nlptown/bert-base-multilingual-uncased-sentiment")
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device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
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bert_model.to(device)
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def preprocess_text(text):
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text = text.lower()
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text = re.sub(r"[^a-zA-Z\s]", "", text).strip()
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return text
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def predict_with_svm(text):
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transformed = vectorizer.transform([text])
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prediction = svm_model.predict(transformed)
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return int(prediction[0])
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def predict_with_lstm(text):
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cleaned = preprocess_text(text)
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seq = lstm_tokenizer.texts_to_sequences([cleaned])
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padded_seq = pad_sequences(seq, maxlen=200)
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probs = lstm_model.predict(padded_seq)
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predicted_class = np.argmax(probs, axis=1)[0]
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return int(predicted_class)
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def predict_with_bert(text):
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inputs = bert_tokenizer([text], padding=True, truncation=True, max_length=512, return_tensors="pt").to(device)
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with torch.no_grad():
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outputs = bert_model(**inputs)
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logits = outputs.logits
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predictions = logits.argmax(axis=-1).cpu().numpy()
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bert_score = int(predictions[0])
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if bert_score <= 2:
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return 0
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elif bert_score == 3:
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return 1
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else:
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return 2
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def analyze_sentiment(text):
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results = {
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"SVM": predict_with_svm(text),
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"LSTM": predict_with_lstm(text),
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"BERT": predict_with_bert(text)
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}
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scores = list(results.values())
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average = np.mean(scores)
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stats = f"Average Score (0=Neg,1=Neu,2=Pos): {average:.2f}\n"
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return (
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convert_to_stars(results["SVM"]),
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convert_to_stars(results["LSTM"]),
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convert_to_stars(results["BERT"]),
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stats
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)
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def convert_to_stars(score):
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# Map 0->1 star, 1->3 stars, 2->5 stars
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star_map = {0: 1, 1: 3, 2: 5}
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stars = star_map.get(score, 3)
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return "★" * stars + "☆" * (5 - stars)
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def process_input(text):
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if not text.strip():
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return ("", "", "", "Please enter valid text.")
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return analyze_sentiment(text)
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with gr.Blocks() as demo:
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gr.Markdown("# Sentiment Analysis Demo")
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gr.Markdown("""
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Enter a review and see how different models evaluate its sentiment! This app uses:
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- SVM for classic machine learning
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- LSTM for deep learning
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- BERT for transformer-based analysis
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""")
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with gr.Row():
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with gr.Column():
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input_text = gr.Textbox(label="Enter your review:", lines=3)
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analyze_button = gr.Button("Analyze Sentiment")
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with gr.Column():
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svm_output = gr.Textbox(label="SVM", interactive=False)
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lstm_output = gr.Textbox(label="LSTM", interactive=False)
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bert_output = gr.Textbox(label="BERT", interactive=False)
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stats_output = gr.Textbox(label="Statistics", interactive=False)
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analyze_button.click(
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process_input,
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inputs=[input_text],
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outputs=[svm_output, lstm_output, bert_output, stats_output]
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)
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demo.launch()
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