A TIFF-tree based High Utility Itemset Mining Algorithm
Owing to their major contribution to the total transactions sales profits,increasingly importance has been attached to high utility itemsets mining.This paper has proposed a TIFF-tree based algorithm,which takes two-pass database scan to obtain the transaction utility information,the conditional matrix of potential high utility is adopted,through the row-column operation,the calculation of transaction utility can be simplified.The experiment result analysis shows that as the decreasing of user-defined threshold,the performance of TIFP-Growth algorithm is much better than the two-phase algorithm.
Frequent Pattern Mining Conditional Matrix High Utility Itemsets
Yi Pan Bo Zhang
Department of Computer Sci.& Tech,Changsha University,Changsha,412003,China Logistic Engineering School,Wuhan University of Technolog,Wuhan,430074,China
国际会议
郑州
英文
501-505
2013-10-19(万方平台首次上网日期,不代表论文的发表时间)