Joseph K. Bradley created SPARK-5017: ----------------------------------------
Summary: GaussianMixtureEM should use SVD for Gaussian initialization Key: SPARK-5017 URL: https://issues.apache.org/jira/browse/SPARK-5017 Project: Spark Issue Type: Improvement Components: MLlib Affects Versions: 1.2.0 Reporter: Joseph K. Bradley GaussianMixtureEM effectively does 2 matrix decompositions in Gaussian initialization (pinv and det). Instead, it should do SVD and use that result to compute the inverse and det. This will also prevent failure when the matrix is singular. Note: Breeze pinv fails when the matrix is singular: [https://github.com/scalanlp/breeze/issues/304] -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org