FA-98508 / Beam search bookkeeping / Member archive
Beam search: equal beam scores depend on incidental input order · case 03
equal beam scores depend on incidental input order.
Case contract
Rows [score,id] sort by descending score then ascending identifier.
Why this case matters
Beam decoders rely on consistent hypothesis state while expanding and ranking candidates.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| reverse input tie | [[3, "z"], [3, "a"]] | [[3, "a"], [3, "z"]] | Failed |
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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
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