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Pattern mining method, high-utility itemset mining method, and related device

机译:模式挖掘方法,高效项集挖掘方法及相关设备

摘要

A pattern mining method includes obtaining, according to each of transactions comprised in a transactional database, a candidate pattern set satisfying a condition, each of the transactions comprising at least one item, each of candidate patterns in the candidate pattern set comprising one or more items in an itemset, calculating a utility of a respective one of the candidate patterns in each of the transactions, determining, among the transactions, at least one target transaction in which the utility reaches a specified utility threshold, determining a target period value of a target candidate pattern corresponding to the at least one target transaction, according to a target time attribute of each of the at least one target transaction, and determining the target candidate pattern as a mining result, based on the target period value of the target candidate pattern being less than or equal to a period threshold.
机译:一种模式挖掘方法,包括根据交易数据库中包含的每个交易,获取满足条件的候选模式集合,每个交易包括至少一项,候选模式集合中的每个候选模式包括一个或多个项目在项目集中,计算每个交易中候选模式各自的效用,确定交易中至少一项效用达到指定效用阈值的目标交易,确定目标的目标期间值根据所述至少一个目标交易的每一个的目标时间属性,对应于所述至少一个目标交易的候选模式,并基于所述目标候选模式的目标周期值为小于或等于周期阈值。

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