2005 | OriginalPaper | Buchkapitel
Reducts in Incomplete Decision Tables
verfasst von : Renpu Li, Dao Huang
Erschienen in: Advanced Data Mining and Applications
Verlag: Springer Berlin Heidelberg
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Knowledge reduction is an important issue in data mining. This paper focuses on the problem of knowledge reduction in incomplete decision tables. Based on a concept of incomplete conditional entropy, a new reduct definition is presented for incomplete decision tables and its properties are analyzed. Compared with several existing reduct definitions, the new definition has a better explanation for knowledge uncertainty and is more convenient for application of the idea of approximate reduct in incomplete decision tables.