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# Help! Closed/maximal frequent itemsets

Member Posts: 11 Contributor II
edited November 2018 in Help
Hi!

Is it possible to get only maximal or closed frequent itemsets in RapidMiner?

Thanks!

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Member Posts: 11 Contributor II
In other words, if FP-Growth output is:

Item A Item B Item C
Item A Item B

I need to leave only Item A Item B Item C, since it is maximal.
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Member Posts: 11 Contributor II
Another try:)

I have the following example:

Attr 1  Attr2  Attr 3  Attr 4  Attr 5
Row 1    0        1        0          1        0
Row 2    0        0        0          1       0
Row 3    0        1        0          0        0

I need to filter out Row 2 and Row 3, since {0,0,0,1,0} and {0,1,0,0,0} are subsets of the first row ({0,1,0,1,0}). So, as a results I should have only Row 1, since other two are redundant for me.

I don't know how else to explain my problem:) I am sure that there is some simple solution for that.
Thanks!

P.S. Getting back to frequent itemsets - Maximal Frequent Itemsets is a frequent itemset for which none of its immediate supersets are frequent.