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Posted to issues@hivemall.apache.org by "Makoto Yui (JIRA)" <ji...@apache.org> on 2017/10/04 06:18:00 UTC

[jira] [Created] (HIVEMALL-151) Support Matrix conversion from DoK to CSR/CSC matrix

Makoto Yui created HIVEMALL-151:
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             Summary: Support Matrix conversion from DoK to CSR/CSC matrix
                 Key: HIVEMALL-151
                 URL: https://issues.apache.org/jira/browse/HIVEMALL-151
             Project: Hivemall
          Issue Type: Improvement
            Reporter: Makoto Yui
            Assignee: Makoto Yui
            Priority: Minor


Scipy support efficient matrix type conversions. Support this kind of Matrix-type conversions.

https://github.com/scipy/scipy/blob/v0.14.0/scipy/sparse/dok.py#L467
https://github.com/scipy/scipy/blob/2526df72e5d4ca8bad6e2f4b3cbdfbc33e805865/scipy/sparse/sparsetools/coo.h#L34
https://github.com/scipy/scipy/blob/88587230d56b17bcd397e10321c65c87c27ac491/scipy/sparse/compressed.py#L859



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