[ https://issues.apache.org/jira/browse/MAHOUT-1757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitriy Lyubimov updated MAHOUT-1757: ------------------------------------- Description: there's small error in the spca, Y correction inside power iterations should really be -(s_b-xi'xi*s_b). It doesn't seem to affect much the result but this is a small error (~7-th-8th digit after dot) it introduces when power iterations are used. > Small fix in spca formula > ------------------------- > > Key: MAHOUT-1757 > URL: https://issues.apache.org/jira/browse/MAHOUT-1757 > Project: Mahout > Issue Type: Improvement > Reporter: Dmitriy Lyubimov > Fix For: 0.10.2 > > > there's small error in the spca, Y correction inside power iterations should > really be -(s_b-xi'xi*s_b). It doesn't seem to affect much the result but > this is a small error (~7-th-8th digit after dot) it introduces when power > iterations are used. -- This message was sent by Atlassian JIRA (v6.3.4#6332)