系统标签: rough fuzzy attributes reduction sets using 1130IEEETRANSACTIONSONFUZZYSYSTEMS,VOL.16,NO.5,OCTOBER2008 AttributesReductionUsingFuzzyRoughSets EricC.C.Tsang,Member,IEEE,DegangChen,DanielS.Yeung,Fellow,IEEE, Xi-ZhaoWang,SeniorMember,IEEE,andJohnW.T.Lee,Member,IEEE Abstract—Fuzzyroughsetsarethe...
Fuzzy rough sets are the generalization of traditional rough sets to deal with both fuzziness and vagueness in data. The existing researches on fuzzy rough sets are mainly concentrated on the construction of approximation operators. Less effort has been put on the attributes reduction of databases wi...
Second, the structure of proposed attributes reduction is investigated in detail by the approach of discernibility matrix. Third, an algorithm of computing attributes reduction is designed and finally a comparison with other methods of attributes reduction with fuzzy rough sets is performed using several...
J Kacprzyk,M Fedrizzi - 《Fuzzy Sets & Systems》 被引量: 68发表: 1989年 Minimum cost attribute reduction in incomplete systems under decision-theoretic rough set model Decision-theoretic rough set model has aroused extensive attention of recent years during the development of probabilistic rough set...
rough sets. In particular, the traditional importance measure is extended to deal with covering decision table. Further, an evaluation model based on the knowledge change-based importance measure is constructed. Experiments are conducted on the public data sets fromUCI, and a case study on the ...
In view of many uncertainty and fuzzy factors in water quality prediction,a new weighted support vector machine water quality prediction model based on the importance of attributes is proposed in this paper.By attribute reduction,the prediction indexes are reduced to seven indexes from the original ...
Rough setData miningFuzzy class setsCrisp attributesCertain rulePossible ruleα-cutMachine learning can extract desired knowledge and ease the development bottleneck in building expert systems. Among the proposed approaches, deriving classification rules from training examples is the most common. Given a ...
A new method for discretization of continuous attributes is put forward to overcome the limitation of the traditional rough sets,which cannot deal with continuous attributes.The method is based on an improved algorithm to produce candidate cut points and an algorithm of reduction based on variable ...
Using a Rough Sets approach for the analysis of the subset of preference relations, a set of decision rules is obtained, and these are applied to a set A\\\B of potential actions. The Rough Sets approach of looking for the reduction of the set of attributes gives us the possibility of ...
Attribute reduction in concept lattices and attribute characteristics; 概念格的属性约简与属性特征 2. The attribute characteristic is the description or the appraisal of special attributes,which is usually expressed by adjectives,and its common expression forms are "Yattribute-characteristic(Y)+(de)+N...