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In the process of incremental mining, when the support is changed, the storage structure in existed incremental mining algorithms of sequential patterns determines that the algorithms need to mine the database once again. In this paper, we propose a novel data storage structure, called frequent sequence tree, and give the construction algorithm of frequent sequence tree, called Con_FST. The root node...
The storage structure for sequence in existing incremental mining algorithms of sequential patterns is used to store the sequences that meet the support threshold. When the database is updated, the projected database needs to be constructed to find the sequential patterns in the updated database. In this paper, we propose the structure of sequence tree based on projected database, called sequence...
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