Robin Anil created MAHOUT-1240:
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Summary: Randomized testing and Serialization of NonZeros
Key: MAHOUT-1240
URL: https://issues.apache.org/jira/browse/MAHOUT-1240
Project: Mahout
Issue Type: Bug
Reporter: Robin Anil
Fix For: 0.8
Currently the nonZero iterator does not guarantee nonZero iteration for certain
vectors (RASV, SASV) for performance reason. However vector view iterator adds
a zero check.. To be correct we have to either remove the check or do correct
non zero serialization everywhere. However this means going over the vectors in
two passes. Given that is pretty fast already, I am fixing the logic bug. We
can tackle the speed up for the next release.
This also adds a randomized test for serialization that catches all such bugs.
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