Tabular outlier rate label encoding
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- **wenmin-wu/tabular-outlier-rate-label-encoding**: Encode a categorical column by replacing each category with the per-category outlier rate (mean of a binary outlier flag), out-of-fold to avoid leakage — a target-aware encoding tuned to long-tail / sentinel-target problems where a binary classifier signal is more useful than the raw regression mean Read `references/wenmin-wu/skills/tabular/outlier-rate-label-encoding/SKILL.md`.
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