FA-100463 / Sparse tensor canonicalization / Member archive
Sparse tensor: CSR expansion loses rows with repeated row pointers · case 03
CSR expansion loses rows with repeated row pointers.
Case contract
Expand valid CSR arrays into [row,column,value] entries, including correct row identity after empty rows.
Why this case matters
A small offline sparse-array operation has explicit coordinate and storage semantics.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| empty middle | [[0, 2, 5], [0, 0, 7]] | [[0, 2, 5], [2, 0, 7]] | Failed |
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