FA-99390 / Embedding vector normalization / Member archive
Weighted pooling normalizes token vectors before combining them · case 05
Weighted pooling normalizes token vectors before combining them.
Case contract
Return the L2-unit direction of the weighted mean; zero total weight or a zero pooled vector returns empty.
Why this case matters
A small embedding preparation contract can be checked without a model or retrieval system.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| magnitudes matter | [0.5, 0.5] | [0.31622776601683794, 0.9486832980505138] | Failed |
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