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Discuss sampling techniques to extract frequent itemsets from a stream.

Discuss sampling techniques to extract frequent itemsets from a stream.

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  • We assume that stream elements are baskets of items.

  • The simplest approach to maintaining a current estimate of the frequent itemsets in a stream is to collect some number of baskets and store it as a file.

  • Run one of the frequent-itemset algorithms, meanwhile ignoring the stream elements that arrive, …

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