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- W2906772409 abstract "Sequence pattern discovery is a key issue in multivariate time series analysis. Popular methods consist of three stages: feature extraction, feature clustering, and block sequence discovery. Both cross and temporal associations are obtained during the third stage. In this paper, we propose a new type of pattern called a state transition pattern with periodic wildcard gaps (STAP) to enrich cross associations. We design an approach that consists of three stages, that is, feature extraction, frequent state discovery, and pattern synthesis, to obtain frequent STAPs. Compared with previous approaches, STAP emonstrates stronger cross associations by considering different variables multaneously. We propose two pre-pruning and the Apriori-pruning technique to speed up pattern discovery. We also propose a type of graph to visualize STAPs. Experimental results on three real-world datasets and one artificial dataset demonstrate that STAPs capture richer cross and temporal associations." @default.
- W2906772409 created "2019-01-11" @default.
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- W2906772409 date "2018-11-01" @default.
- W2906772409 modified "2023-09-24" @default.
- W2906772409 title "State Transition Pattern with Periodic Wildcard Gaps" @default.
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- W2906772409 doi "https://doi.org/10.1109/icbk.2018.00065" @default.
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