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README.md
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# Fine-Tuned GPT-2 Model for Instruction-Based Tasks
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This model is a fine-tuned version of GPT-2, adapted for instruction-based tasks. It has been trained to provide helpful and coherent responses to a variety of prompts.
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## Model Description
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This model is based on OpenAI's GPT-2 architecture and has been fine-tuned to respond to instructions in a format that mimics conversational exchanges. The fine-tuning process enhances its ability to follow specific instructions and generate appropriate responses, making it a valuable tool for interactive applications.
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### Example Usage
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Below is an example of how to use the fine-tuned model in your application:
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```python
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import torch
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import random
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import numpy as np
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from transformers import GPT2LMHeadModel, GPT2Tokenizer
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# Load the fine-tuned model and tokenizer
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model = GPT2LMHeadModel.from_pretrained("your_model_path")
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tokenizer = GPT2Tokenizer.from_pretrained("your_model_path")
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# Set the seed value for reproducibility
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seed_val = 42
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random.seed(seed_val)
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np.random.seed(seed_val)
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torch.manual_seed(seed_val)
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torch.cuda.manual_seed_all(seed_val)
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# Define the template for instruction-based prompts
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template = "<s>[INST] <<SYS>>
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You are a helpful assistant
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<</SYS>>
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{instruct}[/INST]"
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# Function to format prompts using the template
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def format_entry(prompt):
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return template.format(instruct=prompt)
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# Define the input prompt
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prompt = "What is a dog?"
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# Tokenize the input prompt
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inputs = tokenizer.encode(format_entry(prompt), return_tensors='pt')
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# Generate a response
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outputs = model.generate(
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inputs,
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max_length=256,
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num_return_sequences=1,
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top_k=50,
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top_p=0.95,
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temperature=0.8,
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pad_token_id=tokenizer.eos_token_id,
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do_sample=True,
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early_stopping=True
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)
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# Decode and print the generated text
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generated_text = tokenizer.decode(outputs[0], skip_special_tokens=True)
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print(generated_text)
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### Explanation:
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Training Data
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The model was fine-tuned using the Alpaca GPT-4 dataset available at the following GitHub repository. Specifically, the alpaca_gpt4_data_en.zip dataset was utilized. This dataset includes a wide range of instruction-based prompts and responses, providing a robust foundation for the model's training.
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Training Procedure
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The fine-tuning process was carried out with the following hyperparameters:
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Learning Rate: 2e-5
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Batch Size (Train): 4
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Batch Size (Eval): 4
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Number of Epochs: 1
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Weight Decay: 0.01
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Training Environment
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The model was trained using PyTorch and the Hugging Face transformers library. The training was performed on a GPU-enabled environment to accelerate the fine-tuning process. The training script ensures reproducibility by setting a consistent random seed across different components.
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