[HIVEMALL-77] Support CSRMatrix and DenseMatrix

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Assignee: Makoto Yui
• Reporter: Makoto Yui
• Created: 21/Feb/17 06:44
• Updated: 09/Nov/17 03:33
• Resolved: 23/Feb/17 10:31

Description

Support CSRMatrix and DenseMatrix in hivemall.matrix package.

Need to support incremental CSRMatrix builder.
https://github.com/myui/hivemall/commit/8f396178223809a8e8211070537c2539ebb6e165

Reference
https://github.com/vkostyukov/la4j/blob/master/src/main/java/org/la4j/matrix/sparse/CRSMatrix.java
https://github.com/scipy/scipy/blob/master/scipy/sparse/csr.py
http://netlib.org/linalg/html_templates/node91.html#SECTION00931100000000000000
http://www.cs.colostate.edu/~mcrob/toolbox/c++/sparseMatrix/sparse_matrix_compression.html

Issue Links

• blocks: HIVEMALL-75 Support Sparse Vector Format as the input of RandomForest
• blocks: HIVEMALL-21 [Umbrella] Release Hivemall v0.5.0
• links to: GitHub Pull Request #48