An efficient strategy for mining high utility itemsets Online publication date: Tue, 21-Oct-2014
by Bac Le, Huy Nguyen, Bay Vo
International Journal of Intelligent Information and Database Systems (IJIIDS), Vol. 5, No. 2, 2011
Abstract: Methods for mining high utility itemsets from databases have been discussed widely in recent years. They mine itemsets having high utility from databases. Pruning candidates based on transaction-weighted utilisation value is a good method at all. In this paper, we develop a tree structure called WIT-tree, and use it in the proposed TWU-mining algorithm, an algorithm for improving the mining time and the search space. Using Diffset for fast computing transaction-weighted utilisation values and saving memory will be discussed. Experimental results show that proposed algorithms are more efficient.
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