FA-99490 / Vector retrieval ranking / Member archive
Vector retrieval: Weighted distance ignores per-coordinate importance · case 05
Weighted distance ignores per-coordinate importance.
Case contract
Rank by sum(weight_i*(candidate_i-query_i)^2), ascending; dimensions match.
Why this case matters
An offline vector retrieval toy model isolates one ranking contract from embedding generation, storage, and serving.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| reverse weights | ["b", "a"] | ["a", "b"] | Failed |
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