산업경영시스템학회지 (Journal of Korean Society of Industrial and Systems Engineering)

  • 제34권2호
  • /
  • Pages.30-34
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  • 2011
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  • 2005-0461(pISSN)
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  • 2287-7975(eISSN)
한국산업경영시스템학회 (Society of Korea Industrial and System Engineering)
권호 표지

구간 데이터를 위한 가변정밀도 러프집합 모형

A Variable Precision Rough Set Model for Interval data

  • 김경택 (한남대학교 산업경영공학과)
  • Kim, Kyeong-Taek (Dept. of Industrial and Management Engineering, Hannam University)
  • 투고 : 2011.03.09
  • 심사 : 2011.04.11
  • 발행 : 2011.06.30
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초록

Variable precision rough set models have been successfully applied to problems whose domains are discrete values. However, there are many situations where discrete data is not available. When it comes to the problems with interval values, no variable precision rough set model has been proposed. In this paper, we propose a variable precision rough set model for interval values in which classification errors are allowed in determining if two intervals are same. To build the model, we define equivalence class, upper approximation, lower approximation, and boundary region. Then, we check if each of 11 characteristics on approximation that works in Pawlak's rough set model is valid for the proposed model or not.

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참고문헌

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