Title :
Knowledge Reduction in Incomplete and Fuzzy Objective Information Systems
Author :
Liu, Tianlin ; Zhang, Zhigang ; Xuejuan Liu
Author_Institution :
Sch. of Appl. Sci., Univ. of Sci. & Technol., Beijing, China
Abstract :
This paper proposes the model of incomplete and fuzzy objective information systems based on incomplete approximation space and fuzzy objective information system, and gives the rough set model of incomplete and fuzzy objective information system by the tolerance relation. The model is the generalization of the rough set model of fuzzy objective information system in complete space and of the rough set model of incomplete information system. The related concepts of knowledge reduction are presented.
Keywords :
fuzzy set theory; rough set theory; complete space; fuzzy objective information systems; knowledge reduction; rough set model; tolerance relation; Computational intelligence; Fuzzy set theory; Fuzzy sets; Fuzzy systems; Information security; Information systems; Intelligent systems; Rough sets; Set theory; Space technology; incomplete information system; knowledge reduction; rough set;
Conference_Titel :
Computational Intelligence and Security, 2008. CIS '08. International Conference on
Conference_Location :
Suzhou
Print_ISBN :
978-0-7695-3508-1
DOI :
10.1109/CIS.2008.105
