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https://issues.apache.org/jira/browse/FLINK-3330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15131745#comment-15131745
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Chiwan Park commented on FLINK-3330:
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I think that adding {{SparseVector}} support requires that {{size}},
{{indices}}, {{data}} are to be mutable. But mutable variable is not good
especially for public variable. So I would like to change {{size}},
{{indices}}, {{data}} to package-private mutable.
Does this make sense? [~till.rohrmann], [~tvas]
> Add SparseVector support to BLAS library in FlinkML
> ---------------------------------------------------
>
> Key: FLINK-3330
> URL: https://issues.apache.org/jira/browse/FLINK-3330
> Project: Flink
> Issue Type: Improvement
> Components: Machine Learning Library
> Affects Versions: 1.0.0
> Reporter: Chiwan Park
> Assignee: Chiwan Park
>
> A user reported the problem using {{GradientDescent}} algorithm with
> {{SparseVector}}.
> (http://mail-archives.apache.org/mod_mbox/flink-user/201602.mbox/%3CCAMJxVsiNRy_B349tuRpC%2BY%2BfyW7j2SHcyVfhqnz3BGOwEHXHpg%40mail.gmail.com%3E)
> It seems lack of SparseVector support in {{BLAS.axpy}}.
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