Override zSum and dot for SparseVector
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Key: MAHOUT-44
URL: https://issues.apache.org/jira/browse/MAHOUT-44
Project: Mahout
Issue Type: Improvement
Components: Matrix
Affects Versions: 0.1
Reporter: julien nioche
Priority: Minor
Fix For: 0.1
revision 649163
The patch attached overrides the zSum() and dot() methods in SparseVector. This
is more efficient than relying on the methods from AbstractVector which iterate
on all the indices of the Vectors.
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