ملاحظة بحثية
الحالة: Shipped (Variant 4 — per-tier Platt temperature scaling). Production calibrator uses a hybrid strategy: Platt for the tournament tier (where isotonic collapses to identity at n~70), isotonic for friendlies/qualifiers (where it's more expressive at n~400+). Gate passed. See results belowالخلاصة + الملاحظة الكاملة · 3,433 كلمة
The shipping ensemble calibrator (scripts/fit_ensemble_calibrator.py) fits per-class isotonic regression curves on the uniform-averaged three-component output (Elo bracket MC + Dixon-Coles + Hierarchical Poisson MAP). The first cut lifted holdout ECE on the 365-day common-subset training pool from 4.62pp uncalibrated → 2.70pp under the pooled-across-tiers fit (5-fold CV, n_train = 939, current artefact at data/wc2026/ensemble_calibrator.json).
A subsequent tier-aware refit (three sets…
Standard Pass
Calibrating predictions differently for friendlies vs tournaments تحتوي على 3,433 كلمة. Standard Pass يفتح كل ملاحظة بحثية بالكامل، إضافة إلى التوقع الكامل وتقييمات كل منتخب وكل لاعب، صالح طوال البطولة.
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