Computer Science ›› 2013, Vol. 40 ›› Issue (7): 153-156.

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Study on Fuzzy Query of Heterogeneous Bipolarity Information

ZHAO Fa-xin and JIN Yi-fu   

  • Online:2018-11-16 Published:2018-11-16

Abstract: In daily life,people often give both positive and negative information to state what they desire and what they reject for the same things.Because positive and negative statements do not necessarily mirror each other,this results in so-called heterogeneous bipolar information.The fuzzy query in traditional information systemss does not adequately support the handling of heterogeneous bipolar information.In this paper,based on the regular database,vague set was introduced into the modeling of heterogeneous bipolar information for dealing with heterogeneous bipolar information in fuzzy queries,and a bipolar query satisfaction modelling framework which is based on couples that consist of an independent degree of satisfaction and degree of dissatisfaction was given,then the processing of heterogeneous bipolar queries that contain both positive and negative criteria was also discussed.

Key words: Regular databases,Heterogeneous bipolar information,Vague set,Bipolar query satisfaction degrees,Fuzzy querying

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