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    题名: Discovering Time-Interval Sequential Patterns by a Pattern Growth Approach with Confidence Constraints
    作者: Shyur, Huan-Jyh;Jou, Chichang;Cheng, Chi-Bin;Yen, Chih-Yu
    关键词: Sequential pattern mining;time-interval sequential patterns;pattern growth;confidence
    日期: 2016
    上传时间: 2017-01-17 11:27:44 (UTC+8)
    出版者: 淡江大學出版中心
    摘要: Sequential pattern mining is to discover frequent sequential patterns in a sequence database. The technique is applied to fields such as web click-stream mining, failure forecast, and traf- fic analysis. Conventional sequential pattern-mining approaches generally focus only the orders of items; however, the time interval between two consecutive events can be a valuable information when the time of the occurrence of an event is concerned. This study extends the concept of the well-known pattern growth approach, PrefixSpan algorithm, to propose a novel sequential pattern mining approach for sequential patterns with time intervals. Unlike the other time-interval sequential pattern-mining algorithms, the approach concerns the time
    for the next event to occur more than the timing information with its precedent events. To obtain a more reliable sequential pattern, a new measure of the confidence of a sequential pattern is defined. Experiments are conducted to evaluate the performance of the proposed approach.
    關聯: nternational Journal of Information and Management Sciences 27 (2), pp.129-145
    DOI: 10.6186/IJIMS.2016.27.2.4
    显示于类别:[資訊與管理科學期刊] 第27卷第2期


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