FA-100135 / Preference pair construction / Member archive
Preference pairs: pair sampling drops minority strata · case 05
pair sampling drops minority strata.
Case contract
Rows are [stratum,pair]. Return at most quota rows for each stratum, in original order; quota is nonnegative.
Why this case matters
A small deterministic preference-data transform makes pair semantics inspectable without a training framework.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| quota per group | [["a5", 1], ["a5", 2]] | [["a5", 1], ["a5", 2], ["b5", 4], ["b5", 5]] | Failed |
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