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https://issues.apache.org/jira/browse/HIVEMALL-75?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Makoto Yui closed HIVEMALL-75.
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Resolution: Fixed
> Support Sparse Vector Format as the input of RandomForest
> ---------------------------------------------------------
>
> Key: HIVEMALL-75
> URL: https://issues.apache.org/jira/browse/HIVEMALL-75
> Project: Hivemall
> Issue Type: Improvement
> Reporter: Makoto Yui
> Assignee: Makoto Yui
>
> RandomForest implementation should support Sparse Vector as the input.
> Matrix and CSRMatrix implementation is required for replacing double[][]x in
> https://github.com/myui/incubator-hivemall/blob/master/core/src/main/java/hivemall/smile/classification/DecisionTree.java#L416
> CSRMatrixBuilder should support incremental CSRMatrix construction.
> https://github.com/myui/hivemall/commit/8f396178223809a8e8211070537c2539ebb6e165
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