Lingesh-S/mcq-mistral-lora

MCQ Generator with Mistral-7B + LoRA (Fine-tuned)

This model generates Multiple Choice Questions (MCQs) from academic-style paragraphs. It is fine-tuned using LoRA on top of mistralai/Mistral-7B-Instruct-v0.1 using a custom dataset of educational instructions and responses.

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Model Details

• Base Model: mistralai/Mistral-7B-Instruct-v0.1
• Adapter Technique: LoRA via peft
• Quantization: 8-bit (bitsandbytes)
• Fine-tuned by: Lingesh S
• Use case: EdTech, Auto quiz generation, School AI tutors
• Training Platform: Google Colab (T4 GPU with CPU + disk offload)

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Example Usage

from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline
from peft import PeftModel

base = "mistralai/Mistral-7B-Instruct-v0.1"
adapter = "Lingesh-S/mcq-mistral-lora"

tokenizer = AutoTokenizer.from_pretrained(base)
tokenizer.pad_token = tokenizer.eos_token

model = AutoModelForCausalLM.from_pretrained(
    base,
    device_map="auto",
    load_in_8bit=True,
    quantization_config={
        "load_in_8bit": True,
        "llm_int8_enable_fp32_cpu_offload": True
    },
    offload_folder="./offload"
)

model = PeftModel.from_pretrained(model, adapter)

pipe = pipeline("text-generation", model=model, tokenizer=tokenizer)

prompt = """
# Instruction:
Generate a multiple choice question with 4 options and one correct answer based on the paragraph below.

Paragraph: The Lok Sabha is the House of the People in India. It is one of the two houses of Parliament.

# Response:
"""

output = pipe(prompt, max_new_tokens=150, do_sample=True, temperature=0.5)
print(output[0]["generated_text"])

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Sample Output

What is the name of the House of the People in India?

a) The Rajya Sabha  
b) The Lok Sabha  
c) The Supreme Court  
d) The President's House  

Correct answer: b) The Lok Sabha

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Training Details

• Dataset: Custom JSONL of 500 examples (Paragraph → MCQ)

• Epochs: 3

• Batch size: 1

• Loss: ~0.23

• Adapter size: 13.6MB

• LoRA Config:

  • r=8
  • lora_alpha=32
  • dropout=0.05
  • target_modules=['q_proj', 'v_proj']

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Model Sources

• Base: mistralai/Mistral-7B-Instruct-v0.1
• Adapter: This repo (Lingesh-S/mcq-mistral-lora)
• Dataset: Not published (private custom dataset)

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Intended Use

Use Case	Status
MCQ generation for education	✅ Intended
Chat-style assistants	✅ Possible
Factual question generation	⚠️ Needs review
Medical/legal MCQs	❌ Not recommended

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Limitations & Biases

This model:

• Was trained on a small dataset (~500 samples)
• May hallucinate or repeat options
• Should not be used for high-stakes testing without human review

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Contact

Model developed and shared by Lingesh S Contact via Hugging Face or LinkedIn

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Citation

@misc{lingesh2024mcq,
  title={MCQ Generator Fine-Tuned on Mistral-7B via LoRA},
  author={Lingesh S},
  year={2024},
  url={https://huggingface.co/Lingesh-S/mcq-mistral-lora}
}