JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2013, Vol. 43 ›› Issue (5): 6-12.

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Attribute derangement in decision tables

GAO Feng1, CHI Chun-mei2   

  1. 1. Science School, Qingdao Technological University, Qingdao 266033, China;
    2. Computer Engineering School, Qingdao Technological University, Qingdao 266033, China
  • Received:2012-11-28 Online:2013-10-20 Published:2012-11-28

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Abstract:

Attribute derangement in decision tables was proposed. Based on the redundant relations between attributes, the criteria was given for judging which kind of derangement led to rough set and which one would not. The notion of derangement roughness was proposed and then the notion of best logic attribute and the best attribute logic flow were put forward. It was shown that the best attribute logic flow reflected the causal relations between different attributes in decision tables. Numerical experiment showed that missing data could be imputed effectively by using attribute derangement.

Key words: imputation of missing data, attribute derangement, derangement roughness, rough set, best attribute logic flow

CLC Number: 

  • TP181
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