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https://issues.apache.org/jira/browse/SPARK-20322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-20322.
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Resolution: Incomplete
> MinPattern length in PrefixSpan
> -------------------------------
>
> Key: SPARK-20322
> URL: https://issues.apache.org/jira/browse/SPARK-20322
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Affects Versions: 2.1.0
> Reporter: Cyril de Vogelaere
> Priority: Trivial
> Labels: bulk-closed
> Original Estimate: 0h
> Remaining Estimate: 0h
>
> The current implementation already diposes of a maxPatternLength parameter.
> It might be nice to add a similar minPatternLength parameter.
> This would allow user to better control the solutions received, and lower the
> amount of memory needed to store the solutions in the driver.
> This can be implemented as a simple check before adding a solution to the
> solution list, no difference in performance should be observable.
> I'm proposing this fonctionality here, if it looks interesting to other
> people, I will implement it along with tests to verify it's implementation.
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