e872eff4ce48fa4f8a1a0a6ee325cbad55e186c9
2 Commits
| Author | SHA1 | Message | Date | |
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 builtbykev
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e872eff4ce |
Instrument the calibration duel forward; diagnose the resolution ceiling
— the proven factors were never wired in
PHASE 0 — two truths recorded. The swap is a BET, not an OOS win:
isotonic beat low-param on identical held-out rows (hits +0.0028, rbi
+0.0042, TB tied) and we serve low-param anyway on an untestable prior
about shared daily structure. At 19 dates nothing here can test it. And
the MIN_SLOPE catch is preserved as standing rationale: a near-zero or
negative slope collapses toward base-rate-for-everything, which LOWERS
Brier while destroying all resolution -- a metric win that guts the
product.
PHASE 1 — the duel is now falsifiable. Both corrections computed on every
hits/TB prop; p_win_lowparam served, p_win_isotonic_shadow logged in its
own try so it can never break serving. calibrationDuel.adjudicate encodes
the rule IN CODE before any forward date exists: >=10 forward dates and
isotonic winning with a date-block CI excluding zero => REFUTED, revert;
otherwise UPHELD; under 10 dates PENDING regardless of the numbers. A
date counts as forward only if NEITHER map was fitted on it -- otherwise
we would be scoring which map memorised better. Nothing swaps now.
PHASE 2 — the ceiling, quantified via Murphy decomposition:
stat reliability RESOLUTION uncertainty variance explained
hits 0.01353 0.00252 0.24532 1.03%
TB 0.01419 0.00442 0.24329 1.82%
rbi 0.00654 0.03268 0.22531 14.51%
runs 0.00788 0.00130 0.23182 0.56%
Calibration did exactly what theory says and nothing more: hits
reliability 0.01353 -> 0.00233 (-0.0112, 83% of the error removed) while
resolution moved -0.0002. Unexpected: rbi has 13x the resolution of hits
and is the one stat we do NOT serve corrected -- it needs calibration
least and discriminates most.
PHASE 2 DIAGNOSIS — NOT-TRANSMITTED, and not weak, ABSENT. Traced in code:
sprayDefense.js and platoonSeverity.js are required by NOTHING in src/,
only by analysis scripts and their own tests. The served p_win
(intelligence/probabilityEstimator.js:54) reads exactly four inputs --
game-log frequency, opp_rank_stat +/-0.03, home_away +/-0.015, and a cv
pull -- with zero occurrences of spray, platoon, hard-hit or
contact-profile. And snapshotService grades at line 454 while computing
challenger/context at 640+, so everything proven is computed DOWNSTREAM of
the grade it would inform. The three proven hits factors have never once
moved a served number.
That reframes the recent nulls: "calibrated p_win does not separate within
archetype" was never a statement about factors. The factors were not in
the forecast.
PHASE 3 — bands rebuilt on SERVED values (hits/TB low-param, rbi/runs
raw): 28 archetype slots across four stats, ZERO show lift. No longer an
open shrug -- it is the arithmetic of resolution 0.0013-0.0327 against
uncertainty ~0.23. A forecast explaining 1% of variance cannot produce
separating bands, and no correction to its numbers will change that.
HEADLINE: calibration is complete, delivered honest numbers on two stats
and zero grade separation, because the counter has no resolution -- and
the proven factors are not wired into the forecast at all. The second is
the reason for the first, and it is plumbing rather than a modelling wall.
Per-archetype grades need proven factors that actually reach p_win. Last
calibration order.
Serving unchanged from
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builtbykev
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6ae11f1193 |
LODO-gated provisional calibration: total_bases deploys, hits withdrawn
PHASE 0 — I applied factorGate's >=40 date-cluster floor to a calibration layer without challenging the binding. That floor is a cluster-robust interval bar for a CAUSAL claim. Calibration makes no causal claim, has a bounded failure mode (it can only over- or under-shrink) and consumes no Bonferroni slot. Its real risk is that the correction is DATE-DRIVEN, and leave-one-date-out tests that directly -- a STRICTER bar, since a cluster count cannot detect a single day carrying the effect. The >=40 floor is retained, correctly scoped as the PROMOTION bar. PHASE 1 — both guards codified, 11 tests, green before Phase 2. Demonstrated on live data: raw population violated=true, mean_p 0.4962, both_sides_share 0.9763; after dedup violated=false, mean_p 0.6694. The null guard's test demonstrates the trap explicitly, since (null-1)**2 is 1 and (null-0)**2 is 0 so a Brier over nulls equals the win rate. PHASE 2 — LODO: hits n=1140 dates=17 2 reversals (07-22 n=20, 07-26 n=25) FAIL total_bases n=1050 dates=7 0 reversals, 0 sign flips PASS rbi n= 630 dates=5 1 reversal (08-01 n=99) FAIL runs n= 597 dates=5 2 reversals (08-01 n=86, 08-05 n=244) FAIL Threshold sensitivity reported because the verdict moves: total_bases passes at every held-size threshold, runs fails at every one, and hits fails ONLY when 20/25-row dates are admitted. I fixed MIN_HELD_ROWS=20 before seeing which stats passed and did not move it afterwards to preserve a deploy. Honest caveat: a per-date Brier delta on 20 rows has a standard error several times the effect, so the instrument is underpowered per-drop -- an argument for pre-registering a higher threshold, which is a Roundtable call, not one to make while holding the results. PHASE 3 — total_bases DEPLOY-PROVISIONAL, band [0.6-0.8]. hits, rbi and runs REFUSE. HITS WAS BEING SERVED CALIBRATED AND IS NOT ANY MORE. snapshotService hardcoded it since S91; it fails LODO, so it is out. A stat that cannot survive dropping one day was never calibrated, it was fitted to that day. The consequence is real -- hits props become unstackable for chain.chainAcross -- and it errs toward withdrawing a claim rather than preserving one on a fragile verdict. Deployment is now driven by a frozen, tested CALIBRATION_DEPLOYED set, not a hardcoded stat name. PHASE 4 — calibrationRegistry, 14 tests. Deploy needs BOTH gates, neither waivable. reverify auto-demotes on the first breach (CI stops excluding zero, or the favourite bias flips sign) and logs the breaking date. Promotion needs the original >=40 bar. A provisional deploy that cannot be taken away is just a deploy. PHASE 5 — TB bands rebuilt on calibrated values, 625 eval rows. The two-bar rule still bites: calibrated YES, proven NO, so they stay a base-rate read, now honestly numbered. Every archetype still collapses to one band -- calibrated p_win separates within archetype no better than raw. PHASE 6 logged only: the dead gradient is buried (hits~TB > runs > RBI, and RBI has the SMALLEST bias, so the skill-driven-gradient mechanism did not survive); the refused set is a map of missing inputs; a low-parameter calibrator is queued unbuilt. p_win never mutated; calibration rides as p_win_calibrated with calibration_status provisional. No Bonferroni slot consumed. Counter and frozen clusters byte-identical. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01W1sivYNqY2TS5ftykmHBU9 |