ptkag1712/gpt2-based-on-paraSCI_dataset

Model Card for gpt2-parasciparaphrase

🧠 Model Summary

This model is a fine-tuned version of GPT-2 on the ParaSCI dataset for paraphrase generation. It takes a sentence as input and generates a paraphrased version of that sentence.

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📋 Model Details

• Base model: GPT-2 (gpt2)
• Task: Paraphrase generation (Causal Language Modeling)
• Language: English
• Training data: HHousen/ParaSCI
• Training steps: 1 epoch on ~270k examples
• Precision: fp16 mixed precision
• Hardware used: Tesla T4 (Kaggle Notebook GPU)
• Framework: 🤗 Transformers, PyTorch
• Trained by: [Your Name or HF Username]
• License: MIT

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💡 Intended Use

✅ Direct Use

• Generate paraphrased versions of input English sentences in a general academic/technical writing context.

🚫 Out-of-Scope Use

• Not suitable for paraphrasing code, informal language, or other languages (non-English).
• Not tested for fairness, bias, or ethical use in downstream applications.

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📊 Evaluation

• Qualitative Evaluation: Manual checks indicate coherent paraphrased outputs.
• Automatic Metrics: Not yet reported.

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🛠 Training Details

• Dataset: ParaSCI (sentence1 → sentence2)
• Preprocessing: Concatenated prompt paraphrase this sentence: {sentence1}\n{sentence2}
• Tokenizer: GPT-2 tokenizer with pad_token = eos_token
• Batch size: 8
• Epochs: 1
• Learning rate: 5e-5
• Logging and checkpointing: Every 500 steps, using Weights & Biases (wandb)
• Max sequence length: 256 tokens

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🏁 How to Use

from transformers import AutoModelForCausalLM, AutoTokenizer

model = AutoModelForCausalLM.from_pretrained("your-username/gpt2-parasciparaphrase")
tokenizer = AutoTokenizer.from_pretrained("your-username/gpt2-parasciparaphrase")

input_text = "paraphrase this sentence: AI models can help in automating tasks.\n"
input_ids = tokenizer.encode(input_text, return_tensors="pt")

output = model.generate(input_ids, max_new_tokens=50, do_sample=True, top_k=50, top_p=0.95)
print(tokenizer.decode(output[0], skip_special_tokens=True))