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docs(research): measure why delivered range width equals the search window
Offline v4 holdout probe. Last round's width=window result was the
no-elimination metric; production still-valid ranges after six answers
are 15/33/56 minutes. Adjacent merge never fires under step-2 radii.
W1/W2 match baseline; W3 is uncertain after one coverage squeeze.
No production clustering or scoring defaults changed.
2026-09-14 22:11:47 +08:00

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# 进度 · 交付区间宽度与簇合并研究(2026-09-14)
## 范围
- 分支:`codex/rectification-cluster-width-research-20260914`(基于 `origin/staging` @ `ada2cfb1`
- 任务单:`docs/tasks/TASK-rectification-cluster-width-research-20260914.md`
- 结果:`docs/research/cluster_width_2026_09_14.md` + 同名 `.json`
- 勘误:`docs/research/minute_resolution_2026_09_14.md` 追加「勘误(2026-09-14 簇宽度研究)」
- 脚本:`scripts/research/cluster_width_lib.py``scripts/research/cluster_width_probe.py`(离线,不进 API
- 未改 `candidate_contrast.py``scoring_service.py``active_rectification_event_engine.py`、确认门、`SCORE_DELTA`
- 本单不占 BUG 号
## 完成
- 开工读了上一轮 `minute_resolution_2026_09_14.md`、对照报告、`candidate_contrast.py` 全文。
- M0:上一轮 `width_median` 取全部公开簇并集,**不含淘汰**。六题回放虽调用 `apply_answer``summarize()` 仍读 `engine.width``remaining_count` 是代表分钟封顶 5。按线上 `unionStillValidRange`(未淘汰且落后头名不足 8 分的簇覆盖)重跑基线。
- M1v4 20 例 × ±10/±30/±60。合并次数全是 0(签名簇最多 46 < 64)。真值簇独立率 20/20。`md` 在 ±10 窗内 20/20 恒定。
- M2:W1 / W2 与基线相同(合并不触发)。W3 0.7/0.8 在 ±10、±60 收窄且覆盖不降,±30 挤出 1 例公开 AA(`chad_everett_1937_aa_v4_holdout`)。
- 判定:**不确定,不立实现单。**
## 验收数字
含淘汰的线上口径(六题最优答):
| 半径 | 无淘汰并集 | 六题后线上口径 | 区间覆盖 | 真值簇独立率 |
| --- | ---: | ---: | ---: | ---: |
| ±10 | 21 | 15 | 1.00 | 1.00 |
| ±30 | 61 | 33 | 1.00 | 1.00 |
| ±60 | 121 | 56 | 1.00 | 1.00 |
W3@0.8:±10 宽度 15→11 覆盖 1.00;±30 33→25 覆盖 1.00→0.95;±60 56→43 覆盖 1.00。
- `python -m pytest tests/test_cluster_width_research.py tests/test_minute_resolution_research.py tests/test_rectification_v5_services.py`63 passed
- 本机无项目 `.venv`,用 Anaconda Python 3.11.7 + swisseph 跑完全量 20 例,错误 0。`run_quality_gate.py --profile quick` 编译通过后在 `interpretation_source_inventory_gate.py` 因缺少 `mcp` 包退出 1——基线环境缺口(本机无 `.venv`),与本单无关,不计入。
## 未做
- 未改线上聚类或交付
- 未把研究脚本接到 API
- 未立实现单(W3 未过覆盖门)
- 未做 PyJHora / VedAstro / jyotishganit 对照(本单不解释运势)
- 未 push