Rough Set Extension Model of Incomplete Information System

Yue Hou

Abstract


This paper investigated the incomplete information system in which situation of the more missing or absent unknown values. Based on the original characteristic relation, we proposed a new reflective relation which was controlled by the parameter alpha, beta. By analyzing illustrative examples and comparing to the original characteristic relation, this paper indicated the validity and practicability of the new-defined binary relation.

 

DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4732


Keywords


rough set; incomplete information system; tolerance relation; similarity relation; characteristic relation

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