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Posted to dev@mahout.apache.org by "Ted Dunning (JIRA)" <ji...@apache.org> on 2012/09/04 03:06:07 UTC
[jira] [Updated] (MAHOUT-1059) New matrix extensions

     [ https://issues.apache.org/jira/browse/MAHOUT-1059?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Dunning updated MAHOUT-1059:
--------------------------------

    Attachment: 0006-MAHOUT-1059-Additional-test-for-weighted-vectors.patch
                0005-MAHOUT-1059-Abstract-the-idea-of-a-cached-length.patch
                0004-MAHOUT-1059-Indentation.patch
                0003-MAHOUT-1059-Add-generic-vector-test.patch
                0002-MAHOUT-1059-Stylistic-cleanups.patch
                0001-MAHOUT-1059-Added-Centroid-WeightedVector-Delegating.patch

Updated patches
                
> New matrix extensions
> ---------------------
>
>                 Key: MAHOUT-1059
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1059
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Math
>            Reporter: Ted Dunning
>             Fix For: 0.8
>
>         Attachments: 0001-MAHOUT-1059-Added-Centroid-WeightedVector-Delegating.patch, 0001-MAHOUT-1059-Added-Centroid-WeightedVector-Delegating.patch, 0001-MAHOUT-1059-Added-Centroid-WeightedVector-Delegating.patch, 0001-MAHOUT-1059-Added-Centroid-WeightedVector-Delegating.patch, 0002-MAHOUT-1059-Stylistic-cleanups.patch, 0002-MAHOUT-1059-Stylistic-cleanups.patch, 0002-MAHOUT-1059-Stylistic-cleanups.patch, 0003-MAHOUT-1059-Add-generic-vector-test.patch, 0003-MAHOUT-1059-Add-generic-vector-test.patch, 0004-MAHOUT-1059-Indentation.patch, 0004-MAHOUT-1059-Indentation.patch, 0005-MAHOUT-1059-Abstract-the-idea-of-a-cached-length.patch, 0006-MAHOUT-1059-Additional-test-for-weighted-vectors.patch, DelegatingVectorTest.java
>
>
> The upcoming clustering needs several capabilities to support different operations.  These include some matrix extensions for adding behaviors to different kinds of matrices.  Also there is a file based matrix that uses mmap to access a file as if it were a matrix in shared memory.  Since this is off-heap and shared between processes, it can seriously help some programs.

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