Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (6): 1353-1357.

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Relation reduction of information systems based on interior and its application

LIN Pei-rong, ZHANG Yan-lan, LI Jin-jin   

  1. Dept. of Computer Science and Engineering, Zhangzhou Normal Coll., Zhangzhou 363000, China
  • Received:2008-01-22 Revised:2008-08-27 Online:2009-06-20 Published:2010-01-03

Abstract: By employing an important concept,interior,in topology and intercrossing the theories of topology and rough sets,the attribute reduction in consistent information systems and lower approximation reduction in inconsistent information systems are recognized.Then,based on the theory of topology,the definition of interior reduction in a family of general relations is introduced,and a discernibility matrix is defined to present a judgement theorem for calculating interior consistent sets.Furthermore,a kind of reduction in covering generalized rough set theory is the same as the interior reduction and a model of its application is given.

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