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From "Matthias Boehm (JIRA)" <>
Subject [jira] [Created] (SYSTEMML-2035) Sparse maxpooling_backward returns incorrect results
Date Sat, 02 Dec 2017 02:05:00 GMT
Matthias Boehm created SYSTEMML-2035:

             Summary: Sparse maxpooling_backward returns incorrect results
                 Key: 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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