license: other
tags:
- reasoning
- chain-of-thought
- early-stopping
- uncertainty
- qwen3
ICLR 2-action controller — rollout chains
Chain-of-thought rollouts with counterfactual stopping probes, for a single-chain
{continue, terminate} controller on Qwen3-1.7B (native thinking).
Each JSONL line is one chain:
| field | meaning |
|---|---|
qkey, rep, gold |
question id, chain index, gold answer |
outcome |
natural | length (budget cut) |
answer, correct |
the chain's own answer and whether it is right |
blocks, thinking_tokens |
length of the reasoning |
completion_ids |
the full token ids — the CoT itself |
block_ends, query_points |
block boundaries and the probed prefixes |
probes[] |
{block, prefix_len, forced, forced_tokens} — the answer the model gives if forced to stop there |
Probes are placed at every 4th block. Boxed pools force </think>\n\n\boxed{ (≤ 32
tokens); code pools force a ```python program (≤ 768 tokens) graded by unit
tests. That makes the value of stopping at any point observable, which is what the
controller is trained and evaluated on.
Contents
| file | questions × chains | domain |
|---|---|---|
chains/math_union_fit.jsonl |
4 241 × 10 | hard math (DAPO, Numina-hard, DeepScaleR) — training |
chains/math_union_select.jsonl |
1 065 × 10 | same — model selection |
chains/math_t1_report.jsonl, chains/math_t2_report.jsonl |
841 / 853 × 10 | sealed math test splits |
chains/math_ood_report.jsonl |
951 × 8 | math OOD (MATH-500, AIME 24/25, OlympiadBench, GaoKao) |
chains/code_pool_{fit,select,report}.jsonl |
891 / 223 / 386 × 8–16 | SYNTHETIC-2-RL code pool |
chains/code_ood_pooled.jsonl |
958 × 8 | HumanEval+, MBPP+, LiveCodeBench ≥ 2024-08 |
chains/gpqa_diamond_report.jsonl |
198 × 8 | GPQA-Diamond as numbered-option MCQ |
chains/mixed_{fit,select}.jsonl |
concatenations of the math and code splits | |
manifests/, fire_tables/ |
question manifests and cross-fitted π₀ tables | |
ladders/ladders_json.tar.gz |
full decision-rule sweeps behind every reported table | |
ASSET_INVENTORY.json |
path → bytes → lines → sha256 for every file here |
Companion checkpoints: JingweiNi/iclr-2action-controller-heads.
Provenance and reproduction
Code, frozen question manifests, all 70 result tables and the full reproducibility
record live on the branch archive/iclr-2action-controller-2026-08-30 of the project
repo; see docs/reproducibility/iclr-2action-controller-assets.md there. Generation is
seeded by (qkey, rep, seed), so any shard regenerates byte-identically from
(manifest, commit, seed).
GPQA-Diamond questions are derived from the gated Idavidrein/gpqa (revision
633f5ee8…); this repo redistributes only the model's own rollouts over them, not the
source CSV.