A sequential pattern mining algorithm using rough set theory

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A sequential pattern mining algorithm using rough set theory
Sequential pattern mining is a crucial but challenging task in many applications, e.g., analyzing the behaviors of data in transactions and discovering frequent patterns in time series data. This task becomes difficult when valuable patterns are locally or implicitly involved in noisy data. In this paper, we propose a method for mining such local patterns from sequences. Using rough set theory, we describe an algorithm for generating decision rules that take into account local patterns for arriving at a particular decision. To apply sequential data to rough set theory, the size of local patterns is specified, allowing a set of sequences to be transformed into a sequential information system. We use the discernibility of decision classes to establish evaluation criteria for the decision rules in the sequential information system.
Ken Kaneiwa, Yasuo Kudo
Added 29 Aug 2011
Updated 29 Aug 2011
Type Journal
Year 2011
Where IJAR
Authors Ken Kaneiwa, Yasuo Kudo
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