Matthias Boehm created SYSTEMML-2035:
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Summary: Sparse maxpooling_backward returns incorrect results
Key: SYSTEMML-2035
URL: https://issues.apache.org/jira/browse/SYSTEMML-2035
Project: SystemML
Issue Type: Bug
Reporter: Matthias Boehm
The existing tests for maxpooling_backward always use dense data, which hides
underlying correctness issues. These issues are due to invalid handling of
empty sparse rows, empty ranges, and partial range entries with negative
values. In all these cases, the maximum value is 0, which position determines
the index for adding corresponding values.
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