Matrix-based set approximations and reductions in covering decision information systems

In this paper, we propose matrix-based methods for computing set approximations and reducts of a covering decision information system. First, some matrices and matrix operations are introduced to compute the set approximations, and further to compute the positive region of a covering decision system...

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Veröffentlicht in:	International journal of approximate reasoning 2015-04, Vol.59, p.68-80
Hauptverfasser:	Tan, Anhui, Li, Jinjin, Lin, Yaojin, Lin, Guoping
Format:	Artikel
Sprache:	eng
Schlagworte:	Approximation Computation Construction Covering Covering decision information system Descriptions Information systems Mathematical models Matrix Minimal description Optimization Reduct Rough set Set approximation
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