Tandogan/MNLP_M3_dpo_model

MNLP M3 DPO Model — Qwen3-0.6B-Base Fine-Tuned with Direct Preference Optimization

This repository contains a Direct Preference Optimization (DPO) model built on top of the base model Qwen/Qwen3-0.6B-Base, as part of the MNLP M3 project. The model is fine-tuned using a high-quality preference dataset to better align responses with human preferences.

Model Description

• Base Model: Qwen/Qwen3-0.6B-Base
• DPO Dataset: Tandogan/MNLP_M3_dpo_dataset
• Libraries: Unsloth, TRL

Training Procedure

Direct Preference Optimization (DPO)

We started from the official Qwen3-0.6B-Base checkpoint and applied Direct Preference Optimization (DPO).
DPO lets us directly train the model to score preferred responses higher than less-preferred ones, using ranked human feedback.

1. From Base Model (Qwen3-0.6B-Base)

• Dataset: Tandogan/MNLP_M3_dpo_dataset
• Max sequence length: 2048 (prompt truncated to 1024)
• Epochs: 4
• Optimizer: AdamW (learning rate = 2e-6, weight decay = 0)
• Precision: bf16
• Batch size: 2 (gradient accumulation = 4)
• Scheduler: cosine with 1% warmup
• DPO Beta: 0.1
• Eval & Checkpointing: Every epoch
• Monitoring: Weights & Biases (WandB)
• Best Epoch Selection: Based on reward accuracy

Evaluation

Model	BLEU	ROUGE-1/2/L/Lsum	METEOR	MMLU ± SD	TQA_MC1 ± SD	TQA_MC2 ± SD	Reward Acc. ± SD
Qwen3-0.6B-Base	0.1086	0.3282 / 0.1458 / 0.2187 / 0.2964	0.2406	0.5239 ± 0.0365	0.2938 ± 0.0159	0.4589 ± 0.0148	0 ± 0
Qwen3-0.6B	0.0649	0.2488 / 0.0876 / 0.1617 / 0.2224	0.2146	0.4156 ± 0.0361	0.2717 ± 0.0156	0.4284 ± 0.0145	0.4226 ± 0.0088
MNLP M3 DPO Model	0.1343	0.3608 / 0.1634 / 0.2345 / 0.3283	0.2718	0.5264 ± 0.0364	0.3023 ± 0.0161	0.4682 ± 0.0149	0.6997 ± 0.0082

Intended Use

This model is intended for research and experimentation with preference-based alignment and reward modeling.

How to Use

You can use the model with the transformers and trl libraries for inference or evaluation:

from transformers import AutoTokenizer, AutoModelForCausalLM

model = AutoModelForCausalLM.from_pretrained("Tandogan/MNLP_M3_dpo_model").to("cuda")
tokenizer = AutoTokenizer.from_pretrained("Tandogan/MNLP_M3_dpo_model")

prompt = "Explain recursion in simple terms."
inputs = tokenizer(prompt, return_tensors="pt").to("cuda")
outputs = model.generate(**inputs, max_new_tokens=256)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))