Frank McQuillan created MADLIB-1031:
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Summary: 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
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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