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https://issues.apache.org/jira/browse/MADLIB-1031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank McQuillan updated MADLIB-1031:
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Fix Version/s: v1.10
> Improve performance of Apriori
> ------------------------------
>
> Key: MADLIB-1031
> URL: https://issues.apache.org/jira/browse/MADLIB-1031
> Project: Apache MADlib
> Issue Type: Improvement
> Components: Module: Association Rules
> Reporter: Frank McQuillan
> Fix For: v1.10
>
>
> Two potential improvements:
> 1) Limit itemset size: see maxlen parameter on p. 10 of
> https://cran.r-project.org/web/packages/arules/arules.pdf
> as an example.
> 2) Something like a WHERE clause for LHS and RHS in order to reduce
> execution time, but still need the existence of the filtered transactions for
> support and confidence computation. (That is you can't filter then out
> ahead of time because would skew support and confidence.)
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