Makoto Yui created HIVEMALL-75:
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Summary: 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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