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Research On Fuzzy Concept Lattice Model And Its Application

Posted on:2007-11-16Degree:DoctorType:Dissertation
Country:ChinaCandidate:Y QiangFull Text:PDF
GTID:1118360185987998Subject:Control theory and control engineering
Abstract/Summary:PDF Full Text Request
With the rapid development of computer science, and the rapid increase of digital information, information storage and process task is more and more difficult, so research on information representation and process has very important significance. In application, information is fuzzy and indeterminate, so research on fuzzy information representation and transaction has extremely important significance in theory and application.As a kind of excellent mathematic tool, Concept Lattice has been widely applied in knowledge representation, datamining and many other fields. In most papers, Concept Lattice is based on standard context, but in practice, information is usually fuzzy and indeterminate.At present, most of research methods on fuzzy information are based on Lfuzzy set, they can't process the fuzzy information of consecutive value.In the dissertion, we combine fuzzy information with Concept Lattice, research the fuzzy concept lattice model based on consecutive value, and study it's application in knowledge discovery.The main work and research results in this dissertion are as follows:1. We present a model of Fuzzy Concept Lattice, this model is based on fuzzy set of consecutive value , so it has more wide application. At the node level of Fuzzy Concept Lattice, we introduce two fuzzy parameters E and 6 , which are respectively mean value of membership degree of the objects in extent of the fuzzy concept and deviation degree of membership degree of the objects for the mean value.2. We present and implement an algorithm for generating Fuzzy Concept Lattice...
Keywords/Search Tags:fuzzy concept lattice, fuzzy parameters, fuzzy associate rule, distributed fuzzy concept lattice, fuzzy cluster, fuzzy ontology
PDF Full Text Request
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