FA-97875 / Dataset split isolation / Member archive
Dataset split: rolling validation windows reuse future observations as training · case 05
rolling validation windows reuse future observations as training.
Case contract
Return a list of sorted training ID lists, one per origin, using records [id,time].
Why this case matters
This toy split allocator makes membership rules explicit for reproducible evaluation fixtures.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| two origins | [["a", "b"], ["a", "b"]] | [["a"], ["a", "b"]] | Failed |
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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
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