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- W2046347622 abstract "Methods of fuzzy rule extraction based on rough set theory are rarely reported in incomplete interval-valued fuzzy information systems. Thus, this paper deals with such systems. Instead of obtaining rules by attribute reduction, which may have a negative effect on inducting good rules, the objective of this paper is to extract rules without computing attribute reducts. The data completeness of missing attribute values is first presented. Positive and converse approximations in interval-valued fuzzy rough sets are then defined, and their important properties are discussed. Two algorithms based on positive and converse approximations, namely, mine rules based on the positive approximation (MRBPA) and mine rules based on the converse approximation (MRBCA), are proposed for rule extraction. The two algorithms are evaluated by several data sets from the UC Irvine Machine Learning Repository. The experimental results show that MRBPA and MRBCA achieve better classification performances than the method based on attribute reduction." @default.
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- W2046347622 date "2011-06-01" @default.
- W2046347622 modified "2023-10-16" @default.
- W2046347622 title "Positive approximation and converse approximation in interval-valued fuzzy rough sets" @default.
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- W2046347622 doi "https://doi.org/10.1016/j.ins.2011.01.033" @default.
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