| """OPSD dataset plugin for open-r1/OpenThoughts-114k-math. |
| |
| Prepares the dataset for On-Policy Self-Distillation: |
| - Student sees only the problem. |
| - Teacher sees the problem + reference solution (privileged info via teacher_prompt). |
| - Only verified-correct examples are used. |
| |
| Usage: |
| swift rlhf --rlhf_type gkd --external_plugins opsd_plugin.py ... |
| """ |
| from typing import Any, Dict, List, Optional |
|
|
| from swift.dataset import DatasetMeta, RowPreprocessor, register_dataset |
|
|
| SYSTEM_PROMPT = 'Please reason step by step, and put your final answer within \\boxed{}.' |
|
|
| TRANSITION_PROMPT = ('After understanding the reference solution and the rationale behind each step, ' |
| 'now articulate your own step-by-step reasoning that derives the final answer.') |
|
|
|
|
| class OpenThoughtsOPSDPreprocessor(RowPreprocessor): |
| """Preprocessor that builds teacher_prompt from the reference solution. |
| |
| Both student and teacher share the same system prompt for format guidance. |
| The teacher's user message additionally includes the reference solution as privileged info. |
| """ |
|
|
| def preprocess(self, row: Dict[str, Any]) -> Optional[Dict[str, Any]]: |
| if not row.get('correct', True): |
| return None |
|
|
| problem = row.get('problem', '') |
| solution = row.get('solution', '') |
|
|
| teacher_prompt = (f'{problem}\n\n' |
| f'Here is a reference solution to this problem:\n{solution}\n\n' |
| f'{TRANSITION_PROMPT}') |
|
|
| messages: List[Dict[str, str]] = [ |
| { |
| 'role': 'system', |
| 'content': SYSTEM_PROMPT |
| }, |
| { |
| 'role': 'user', |
| 'content': problem |
| }, |
| ] |
|
|
| return {'messages': messages, 'teacher_prompt': teacher_prompt} |
|
|
|
|
| register_dataset( |
| DatasetMeta( |
| ms_dataset_id='open-r1/OpenThoughts-114k-math', |
| hf_dataset_id='open-r1/OpenThoughts-114k-math', |
| preprocess_func=OpenThoughtsOPSDPreprocessor(), |
| tags=['math', 'opsd'], |
| )) |
|
|
