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Posted to issues@madlib.apache.org by "Afshin Rahimi (JIRA)" <ji...@apache.org> on 2016/11/22 23:51:58 UTC
[jira] [Created] (MADLIB-1044) Add rule counts to assoc_rules
results
Afshin Rahimi created MADLIB-1044:
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Summary: Add rule counts to assoc_rules results
Key: MADLIB-1044
URL: https://issues.apache.org/jira/browse/MADLIB-1044
Project: Apache MADlib
Issue Type: Improvement
Components: Module: Association Rules
Reporter: Afshin Rahimi
The association rules modules works great but it could be improved by showing the count of candidates besides support.
count = support * num_transactions
The reason is that within the business you need to show the significance of a rule but you won't be able to do it just by support while you can do it by count (The number of times two items co-occured).
One can manually multiply the number of transactions by support but working with big data, you need to compute the count first and then create a query over the assoc_rules result table to do the multiplication.
It would be very nice to have the count within the assoc_rules table itself.
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