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arXiv 1009.0929cs.DB
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面向目标的时间间隔序列模式挖掘

Mining Target-Oriented Sequential Patterns with Time-Intervals

Hao-En Chueh

摘要:

面向目标的序列模式是指在模式末尾有一个关注项集的序列模式。时间间隔序列模式是指每对连续项集之间具有时间间隔的序列模式。本文提出了一种基于时间间隔的面向目标序列模式发现算法。为此,原始序列被颠倒,使得最后的项集可以被排列在序列的前面。然后利用反向序列与相关项集的对比度来排除不相关序列。利用聚类分析和典型的序列模式挖掘算法,提取连续项集之间具有时间间隔的序列模式。最后,将发现的时间间隔序列模式再次反转到原始顺序以搜索目标模式。

英文摘要:

A target-oriented sequential pattern is a sequential pattern with a concerned itemset in the end of pattern. A time-interval sequential pattern is a sequential pattern with time-intervals between every pair of successive itemsets. In this paper we present an algorithm to discover target-oriented sequential pattern with time-intervals. To this end, the original sequences are reversed so that the last itemsets can be arranged in front of the sequences. The contrasts between reversed sequences and the concerned itemset are then used to exclude the irrelevant sequences. Clustering analysis is used with typical sequential pattern mining algorithm to extract the sequential patterns with time-intervals between successive itemsets. Finally, the discovered time-interval sequential patterns are reversed again to the original order for searching the target patterns.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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