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app.py
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pip install gradio PyMuPDF
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import gradio as gr
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from transformers import T5Tokenizer, MT5ForConditionalGeneration
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import fitz # PyMuPDF
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# Load the fine-tuned tokenizer and model
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model_name = "fine-tuned-mt5"
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new_tokenizer = T5Tokenizer.from_pretrained(model_name, clean_up_tokenization_spaces=True)
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new_model = MT5ForConditionalGeneration.from_pretrained(model_name)
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# Function to extract text from PDF using PyMuPDF
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def extract_text_from_pdf(pdf_file):
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text = ""
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# Open the PDF file
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with fitz.open(pdf_file) as doc:
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for page in doc:
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text += page.get_text() # Extract text from each page
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return text
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# Summarization function
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def summarize_pdf(pdf_file, max_summary_length):
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# Extract text from the PDF
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input_text = extract_text_from_pdf(pdf_file)
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# Tokenize the input to check length
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tokenized_input = new_tokenizer.encode(input_text, return_tensors='pt')
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try:
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# Generate the summary
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summary_ids = new_model.generate(
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tokenized_input,
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max_length=max_summary_length,
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min_length=30,
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num_beams=15,
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repetition_penalty=5.0,
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no_repeat_ngram_size=2
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)
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# Decode the generated summary
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summary = new_tokenizer.decode(summary_ids[0], skip_special_tokens=True)
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# Clean up the summary to remove unwanted tokens
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cleaned_summary = ' '.join([token for token in summary.split() if not token.startswith('<extra_id_')]).strip()
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# Ensure the summary ends with a complete sentence
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if cleaned_summary:
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last_period_index = cleaned_summary.rfind('.')
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if last_period_index != -1 and last_period_index < len(cleaned_summary) - 1:
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cleaned_summary = cleaned_summary[:last_period_index + 1]
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else:
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cleaned_summary = cleaned_summary.strip()
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return cleaned_summary if cleaned_summary else "No valid summary generated."
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except Exception as e:
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return str(e) # Return the error message for debugging
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# Define the Gradio interface
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interface = gr.Interface(
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fn=summarize_pdf,
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inputs=[
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gr.File(label="Upload PDF"),
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gr.Slider(50, 300, step=10, label="Max summary length")
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],
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outputs="textbox", # A textbox for the output summary
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title="PDF Text Summarizer",
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description="Upload a PDF file to summarize its content."
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)
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# Launch the interface
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# Launch the interface with debug mode enabled
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interface.launch(debug=True)
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