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In the past, a pre-large fast-updated sequential pattern tree (pre-large FUSP tree) structure was proposed to effectively handle newly inserted customer sequences for data mining. Since data deletion also commonly occurs in real applications, in this paper, we thus propose a maintenance algorithm for pre-large FUSP trees when records are deleted from the mined database. Pre-large sequences act like...
In the past, the FUFP-tree maintenance algorithm is proposed to efficiently handle the association rules in incremental mining. In this paper, we attempt to modify the FUFP-tree maintenance algorithm for maintaining sequential patterns based on the concept of pre-large sequences to reduce the need for rescanning original databases in incremental mining. A fast updated sequential pattern trees (FUSP...
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