A note on the handling of fuzziness for continuous-valued attributes in decision tree generation

Authors:
Dug Hun Hong;Sungho Lee;Kyung Tae Kim
Affiliations:
Department of Mathematics, Myongji University, Kyunggido, South Korea;Department of Statistics, Daegu University, Kyungbuk, South Korea;Department of Electronics and Electrical Information Engineering, Kyungwon University, Sungnam Kyunggido, South Korea
Venue:
FSKD'06 Proceedings of the Third international conference on Fuzzy Systems and Knowledge Discovery
Year:
2006

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Abstract

Recently, Xizhao and Hong [Fuzzy Sets and Systems 99(1998), 283-290] proposed to revise the cut-point in a decision tree algorithm as the cross-point between two symmetric fuzzy membership functions. In this note we show that in the general class of non symmetric membership function, the cross-point depend on the precise form of the membership function.