FA-99985 / Evaluation metric aggregation / Member archive

Grouped recall pools groups before averaging · case 05

Grouped recall pools groups before averaging.

Member previewVariant 5 · 3 implementations · 7 checks per implementation

Case contract

Rows are [group,actual,predicted]. Return mean recall across groups that contain actual positives; groups with no positives are omitted; none yields 0.

Why this case matters

A small explicit evaluation contract makes aggregation behavior reproducible across labeled examples.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
unequal group sizes	`4.166666666666667`	`0.5`	Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

Member access is invitation-based. Sign in with your invited account to inspect the sources.