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| import gradio as gr | |
| import re | |
| from transformers import AutoTokenizer, AutoModelForSeq2SeqLM | |
| # Model choices ordered by accuracy | |
| model_choices = { | |
| "Pegasus (google/pegasus-xsum)": "google/pegasus-xsum", | |
| "BigBird-Pegasus (google/bigbird-pegasus-large-arxiv)": "google/bigbird-pegasus-large-arxiv", | |
| "LongT5 Large (google/long-t5-tglobal-large)": "google/long-t5-tglobal-large", | |
| "BART Large CNN (facebook/bart-large-cnn)": "facebook/bart-large-cnn", | |
| "ProphetNet (microsoft/prophetnet-large-uncased-cnndm)": "microsoft/prophetnet-large-uncased-cnndm", | |
| "LED (allenai/led-base-16384)": "allenai/led-base-16384", | |
| "T5 Large (t5-large)": "t5-large", | |
| "Flan-T5 Large (google/flan-t5-large)": "google/flan-t5-large", | |
| "DistilBART CNN (sshleifer/distilbart-cnn-12-6)": "sshleifer/distilbart-cnn-12-6", | |
| "DistilBART XSum (mrm8488/distilbart-xsum-12-6)": "mrm8488/distilbart-xsum-12-6", | |
| "T5 Base (t5-base)": "t5-base", | |
| "Flan-T5 Base (google/flan-t5-base)": "google/flan-t5-base", | |
| "BART CNN SamSum (philschmid/bart-large-cnn-samsum)": "philschmid/bart-large-cnn-samsum", | |
| "T5 SamSum (knkarthick/pegasus-samsum)": "knkarthick/pegasus-samsum", | |
| "LongT5 Base (google/long-t5-tglobal-base)": "google/long-t5-tglobal-base", | |
| "T5 Small (t5-small)": "t5-small", | |
| "MBART (facebook/mbart-large-cc25)": "facebook/mbart-large-cc25", | |
| "MarianMT (Helsinki-NLP/opus-mt-en-ro)": "Helsinki-NLP/opus-mt-en-ro", | |
| "Falcon Instruct (tiiuae/falcon-7b-instruct)": "tiiuae/falcon-7b-instruct", | |
| "BART ELI5 (yjernite/bart_eli5)": "yjernite/bart_eli5" | |
| } | |
| model_cache = {} | |
| # List of common prepositions and conjunctions | |
| prepositions_and_conjunctions = set([ | |
| "in", "on", "at", "by", "for", "with", "about", "as", "into", "during", "before", "after", | |
| "of", "to", "from", "and", "but", "or", "nor", "so", "yet", "for", "because", "although", "since", | |
| "unless", "until", "while", "if", "than", "whether", "where", "when", "that", "which", "who", "whom" | |
| ]) | |
| # Function to clean input text by removing prepositions and conjunctions | |
| def clean_text(input_text): | |
| # Replace special characters with a space | |
| cleaned_text = re.sub(r'[^A-Za-z0-9\s]', ' ', input_text) | |
| # Tokenize the input text and remove prepositions/conjunctions | |
| words = cleaned_text.split() | |
| words = [word for word in words if word.lower() not in prepositions_and_conjunctions] | |
| # Rebuild the cleaned text | |
| cleaned_text = " ".join(words) | |
| # Strip leading and trailing spaces | |
| cleaned_text = cleaned_text.strip() | |
| return cleaned_text | |
| # Load model and tokenizer | |
| def load_model(model_name): | |
| if model_name not in model_cache: | |
| tokenizer = AutoTokenizer.from_pretrained(model_name) | |
| model = AutoModelForSeq2SeqLM.from_pretrained(model_name) | |
| model_cache[model_name] = (tokenizer, model) | |
| return model_cache[model_name] | |
| # Summarize the text using a selected model | |
| def summarize_text(input_text, model_label, char_limit): | |
| if not input_text.strip(): | |
| return "Please enter some text." | |
| # Clean the input text by removing special characters and extra spaces | |
| input_text = clean_text(input_text) | |
| model_name = model_choices[model_label] | |
| tokenizer, model = load_model(model_name) | |
| # Adjust the input format for T5 and FLAN models | |
| if "t5" in model_name.lower() or "flan" in model_name.lower(): | |
| input_text = "summarize: " + input_text | |
| inputs = tokenizer(input_text, return_tensors="pt", truncation=True) | |
| summary_ids = model.generate( | |
| inputs["input_ids"], | |
| max_length=15, # Still approximate; can be tuned per model | |
| min_length=5, | |
| do_sample=False | |
| ) | |
| # Decode the summary while skipping special tokens and cleaning unwanted characters | |
| summary = tokenizer.decode(summary_ids[0], skip_special_tokens=True) | |
| # Remove unwanted characters like pipes or any unwanted symbols | |
| summary = summary.replace("|", "") # Remove pipes | |
| summary = summary.strip() # Remove leading/trailing whitespace | |
| return summary[:char_limit] # Enforce character limit | |
| # Gradio UI | |
| iface = gr.Interface( | |
| fn=summarize_text, | |
| inputs=[ | |
| gr.Textbox(lines=6, label="Enter text to summarize"), | |
| gr.Dropdown(choices | |