| --- |
| license: apache-2.0 |
| language: |
| - en |
| configs: |
| - config_name: default |
| data_files: |
| - split: train |
| path: data/train-* |
| dataset_info: |
| features: |
| - name: source |
| dtype: string |
| - name: problem |
| dtype: string |
| - name: generation |
| dtype: string |
| splits: |
| - name: train |
| num_bytes: 249426162 |
| num_examples: 15172 |
| download_size: 109919239 |
| dataset_size: 249426162 |
| --- |
| |
| # dp_removed_OpenR1-Math-220k |
|
|
| Derived from [open-r1/OpenR1-Math-220k](https://huggingface.co/datasets/open-r1/OpenR1-Math-220k), default/train at `e4e141ec9dea9f8326f4d347be56105859b2bd68`. Original source card: [source_card.md](source_card.md). |
|
|
| 15172 problems, 27739 retained traces. One row per problem; `generations` contains ALL retained traces. Parallel arrays refer to those traces; `generation_indices` records original positions. Text is unchanged. Only math-verify-correct traces are included. Explicit length stops and incomplete reasoning are excluded. Missing finish reason policy: `drop`; fallback does not prove the final answer was untruncated and is identified in `completion_evidence`. |
|
|
| Length <= 20480 using `Qwen/Qwen2.5-3B` at `3aab1f1954e9cc14eb9509a215f9e5ca08227a9b`: tokens(problem) + tokens(generation), without special tokens, chat formatting, padding or truncation. Training templates add overhead. |
|
|
| Train/eval overlap removal: normalization v2, distinct 8-grams, coverage >= 0.7 per evaluation problem. Short eval problems use normalized exact substring matching. References: AIME 2024/2025/2026, AMC23, MATH-500; exact pins in provenance.json. No within/between-training deduplication or blanket source-label exclusions. See filter_report.json and decontamination_report.json for counts, matches and near misses. |
|
|
