A frequent itemset is an itemset whose support is greater than some user-specified minimum support. Here is the process for finding frequent itemsets.
Suppose min_sup is the minimum support threshold.
An itemset satisfies minimum support if the occurrence frequency of the itemset is greater than or equal to min_sup.
If an itemset satisfies minimum support, then it is a frequent itemset.
Hence, we first enter all the itemsets and eliminate those which do not satisfy the minimum support threshold.
Tuesday, March 31, 2009
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