{"title":"Rough set over dual-universes in general incomplete information system","authors":"Ruixia Yan, Zhong Wu","doi":"10.1109/GrC.2012.6468573","DOIUrl":null,"url":null,"abstract":"For the universality of incomplete information and superiority of rough set over dual-universes, we research rough set over dual-universes in incomplete information system. In this paper, we provide a general character function in incomplete information system. Then lower and upper approximation operators of rough set over dual-universes in incomplete information system are constructed utilizing general character function. Basic properties of rough set over dual-universes in incomplete information system are studied. Relations between rough set over dual-universes rough set over dual-universes in incomplete information system are discussed. Also, some numerical examples are presented to illustrate theses concepts.","PeriodicalId":126161,"journal":{"name":"IEEE International Conference on Granular Computing","volume":"19 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE International Conference on Granular Computing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GrC.2012.6468573","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
For the universality of incomplete information and superiority of rough set over dual-universes, we research rough set over dual-universes in incomplete information system. In this paper, we provide a general character function in incomplete information system. Then lower and upper approximation operators of rough set over dual-universes in incomplete information system are constructed utilizing general character function. Basic properties of rough set over dual-universes in incomplete information system are studied. Relations between rough set over dual-universes rough set over dual-universes in incomplete information system are discussed. Also, some numerical examples are presented to illustrate theses concepts.
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