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README.md

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+---
+license: mit
+task_categories: [text-generation]
+language: [en]
+tags: [rl, confidence-estimation, calibration, code, competitive-programming]
+size_categories: [1K<n<10K]
+configs:
+- config_name: default
+  data_files:
+  - split: train
+    path: data/train-*.parquet
+---
+
+# rl-value-confidence-train-code
+
+**Code-domain** training set (~4.9K) for a confidence / correctness estimator, sampled from the raw
+competitive-programming datasets **Codeforces (MatrixStudio)**, **BAAI/TACO**, and
+**deepmind/code_contests**. Pairs with
+[`YangyiYY/rl-value-eval-code`](https://huggingface.co/datasets/YangyiYY/rl-value-eval-code) (eval)
+and a ~25K RL-training split from the same pool (disjoint).
+
+Built by taking ALL distinct usable problems, **deduped by problem text GLOBALLY** (these datasets
+heavily re-share Codeforces problems; small-source-first priority cf→cc→taco), split per source
+50:10:5 into train/conf/eval (**0 problem-text overlap** across splits).
+
+## Grader / ground_truth
+`data_source` is `codeforces` / `taco` / `codecontests` — each routes to the shared reference
+grader (`reference/`, apps_execution) both for the RL reward and these labels, so they are IDENTICAL.
+`reward_model.ground_truth` = `input_output` JSON with **the full hidden test suite, capped at 50
+test cases/problem** (problems whose gt still exceeds 1MB — a single giant test — are dropped, as
+they can't be graded within the 60s/problem cap).
+
+## Schema
+`data_source` · `prompt=[{system}, {user: problem}]` · `ability="code"` · `reward_model.ground_truth`
+· `sub_source` (codeforces/codecontests → rating band; taco → difficulty) · `extra_info` (id, rating, sub_source).