| { |
| "rule": "pool = round-2 dev results + incumbents ft-e5-base (size 2) and ft-e5-small (size 1) with their round-1 dev scores; best = max overall; near = overall >= best - 0.003; selected = smallest size rank in near (ties by higher score); runner-up = best-scoring other model", |
| "dev_scores": { |
| "ft-e5-base": 0.6851297501603847, |
| "ft-e5-small": 0.6700276166417629, |
| "r2-bgem3": 0.7007568407810918, |
| "r2-e5b": 0.7079351835925609, |
| "r2-e5b-plain": 0.7066095544829916, |
| "r2-e5l": 0.7117165057564516, |
| "r2-e5s": 0.7038754488016046 |
| }, |
| "near": [ |
| "r2-e5l" |
| ], |
| "selected": "r2-e5l", |
| "runner_up": "r2-e5b", |
| "tie": 0.003, |
| "written_utc": "2026-10-01T17:48:17Z", |
| "gate": { |
| "pass": true, |
| "decided_utc": "2026-10-01T15:38:50Z", |
| "BookTitleRetrieval": 0.446437329167755, |
| "overall": 0.7079351835925609, |
| "BookClustering": 0.7339101300956627 |
| }, |
| "pairs_sha256": { |
| "rows.jsonl": "9ddde8f6ef2750166e4d895b8aba55ba394ba954961169ab0aec0f5d4a541faa", |
| "texts.jsonl": "f0c31d84f79e7c3cee0b45e708ec1bb1929f9e2d99d7fbdec66ecb47a1024a28" |
| }, |
| "size_rank": { |
| "r2-e5s": 1, |
| "ft-e5-small": 1, |
| "r2-e5b": 2, |
| "r2-e5b-plain": 2, |
| "ft-e5-base": 2, |
| "r2-e5l": 3, |
| "r2-bgem3": 4 |
| }, |
| "notes": "dev_scores of ft-e5-base and ft-e5-small are their round-1 dev results (max_seq_length 256, float32); all other pool members were evaluated at max_seq_length 512 in float16. Test was run once, after this selection, on the selected model and the runner-up. gate = the pre-registered recipe gate evaluated on r2-e5b dev (BookTitleRetrieval >= 0.36, overall >= 0.685, BookClustering >= 0.68); pass -> the large runs used mined hard negatives and same-book blocks." |
| } |
