Mining High Utility Itemsets Based on Multiple Minimum Support and Multiple Minimum Utility Thresholds论文.pdf

Mining High Utility Itemsets Based on Multiple Minimum Support and Multiple Minimum Utility Thresholds论文.pdf

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时间:2020-03-04

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2、eeTitleMasterofEngineeringgDiscilineComputerSoftwareandTheorypResearchFieldDataMining*SubmissionDate15December.2016Note1:Universaldecimalclassification(UDC)M’astersThesisMinhiHihUtilitItemsetsBasedOnggyMultipleMinimumSupportand

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7、用值的项集一。这在现实生活中是个重要的数据挖掘任务并且有着很广泛的应用。商效用一项集挖掘是当前研究的热点和难点,近些年提出了些方法来解决该问题。这些方法-MMU使用不同的搜索策略、数据结构、剪枝技术来提高方法的效率。诸如HUIM(--Mu-HiUtilitItemsetsMininltileMinimumUtilitthresho化高效用项集挖掘多重最班ygpy--Mu-小效用阔值算法)和MHUGrowth(ltiplehighutilitygrowth,多重高效用成长算法")的算法克服了在整个数据库中

8、使用单阀值的局限性,然而它们仍然难W解决稀有"-项问题。目前最常用的高效用项集挖掘算法E巧M(EficienthighutilityItem

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