Joy10/gemma-2b-docjoybot-lora

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Model Details

Model Description

🩺 A Medical Reasoning Chatbot Based on Gemma-2B + LoRA

Trained a fine-tuned version of google/gemma-2-2b-it enhanced with LoRA adapters. It specializes in medical question answering and clinical reasoning using structured, step-by-step thought processes.

📌 Key Features

• 🧠 Chain-of-Thought (CoT) Reasoning for complex medical queries
• 🧪 Fine-tuned on 25,000 samples from FreedomIntelligence/medical-o1-reasoning-SFT
• 🧬 LoRA-based parameter-efficient tuning using Hugging Face PEFT + TRL
• 💡 Prompt template includes structured <think> tags to enhance reasoning clarity
• ⚡ Lightweight adapter (~10MB) for efficient deployment with the base model

🔍 Intended Use

This model is intended for educational, research, and prototyping purposes in the healthcare and AI domains. It performs best on medical diagnostic and reasoning tasks where step-by-step logical thinking is required.

⚠️ Disclaimer: This model is not intended for real-world clinical use without expert validation. It is a research-grade assistant only.

🏗️ How It Was Trained

• Base Model: google/gemma-2-2b-it
• LoRA Config: r=8, alpha=16, dropout=0.05
• Frameworks: transformers, PEFT, TRL (SFTTrainer)
• Quantization: 4-bit nf4 for efficient inference using bitsandbytes
• Hardware: Trained on Kaggle GPU (T4), optimized for low-resource fine-tuning

💬 Prompt Format

You are a helpful and knowledgeable AI medical assistant.

### Question:
{medical_question_here}

### Response:
<think>
{step-by-step_reasoning}
</think>
{final_answer}

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