On Variable Precision Generalized Rough Sets and Incomplete Decision Tables-Reference-Cited by-同舟云学术

On Variable Precision Generalized Rough Sets and Incomplete Decision Tables

Published:2021-02-09 Issue:1 Volume:179 Page:75-92
ISSN:0169-2968
Container-title:Fundamenta Informaticae
language:
Short-container-title:FI

Author:

Syau Yu-Ru¹,Liau Churn-Jung²,Lin En-Bing³

Affiliation:

1. Department of Information Management, National Formosa University, Huwei 63201, Yunlin, Taiwan

2. Institute of Information Science, Academia Sinica, Nankang 115, Taipei, Taiwan

3. Department of Mathematics, Central Michigan University, Mt. Pleasant, Michigan 48859, USA. lin1e@cmich.edu

Abstract

We present variable precision generalized rough set approach to characterize incomplete decision tables. We show how to determine the discernibility threshold for a reflexive relational decision system in the variable precision generalized rough set model. We also point out some properties of positive regions and prove a statement of the necessary condition for weak consistency of an incomplete decision table. We present two examples to illustrate the results obtained in this paper.

Publisher

IOS Press

Subject

Computational Theory and Mathematics,Information Systems,Algebra and Number Theory,Theoretical Computer Science

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