FA-100288 / Dataset deduplication grouping / Member archive
Dataset deduplication: near-duplicate score ignores unmatched token union · case 03
near-duplicate score ignores unmatched token union.
Case contract
Return Jaccard similarity of token sets; two empty sets score 1.
Why this case matters
This deterministic toy operation makes one dataset equivalence or representative rule explicit.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| balanced overlap | 0.5 | 0.3333333333333333 | Failed |
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