Mining sequential causal patterns with user-specified skeletons in multi-sequence of event data

Authors:
X. Hang;H. Dai;E. Lanham
Affiliations:
School of Information Technology, Deakin University, Australia;School of Information Technology, Deakin University, Australia;School of Information Technology, Deakin University, Australia
Venue:
Design and application of hybrid intelligent systems
Year:
2003

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Abstract

The approaches proposed in the past for discovering sequential patterns mainly focused on single sequential data. In the real world, however, some sequential patterns hide their essences among multi-sequential event data. It has been noted that knowledge discovery with either user-specified constraints, or templates, or skeletons is receiving wide attention because it is more efficient and avoids the tedious selection of useful patterns from the mass-produced results. In this paper, a novel pattern in multi-sequential event data that are correlated and its mining approach are presented. We call this pattern sequential causal pattern. A group of skeletons of sequential causal patterns, which may be specified by the user or generated by the program, are verified or mined by embedding them into the mining engine. Experiments show that this method, when applied to discovering the occurring regularities of a crop pest in a region, is successful in mining sequential causal patterns with user-specified skeletons in multi-sequential event data.