[1]LIU Caihui,CAI Kecan.Multigranulation covering rough sets based on the union of minimal descriptions of elements[J].CAAI Transactions on Intelligent Systems,2016,11(4):534-538.[doi:10.11992/tis.201605034]
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Multigranulation covering rough sets based on the union of minimal descriptions of elements

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 11 Number of periods: 2016 4 Page number: 534-538 Column: 学术论文—知识工程 Public date: 2016-07-25
Title:
Multigranulation covering rough sets based on the union of minimal descriptions of elements
Author(s):
LIU Caihui;  CAI Kecan
Department of Mathematics & Computer Science, Gannan Normal University, Ganzhou 341000, China
Keywords:
rough sets; multigranulation; conditional probability; covering; minimal description
CLC:
TP18
DOI:
10.11992/tis.201605034
Abstract:
To generalize multigranulation rough sets to a covering-based approximation space, this paper proposes three kinds of covering-based multigranulation rough sets by employing the conditional probability between the target concept and the union of the minimal descriptions of elements. Based on new definitions, some basic properties of these models were investigated and their relationships with some existing covering-based multigranulation rough sets are revealed. The inter-relationship among the three new models is also explored. The discussions show that the proposed models are a special form of text model, as well as extensions of some existing covering-based multigranulation rough sets.
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