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| Attribute Reductions of Interval-Set Concept Lattices for Decision Formal Contexts |
| MA Jianmin1, HU Lingling1 |
| 1.Department of Mathematics and Information Sciences, School of Sciences, Chang′an University, Xi′an 710064 |
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Abstract A concept of interval set is introduced into decision formal contexts to study attribute reduction of interval-set concept lattices. Firstly, the conditional and decision interval-set concept lattices are constructed, and a refinement between them is also introduced. Then, the interval-set consistent set and interval-set reduction are defined. Furthermore, the corresponding approaches for judging the interval-set consistent sets are shown. By introducing the discernibility interval-set attribute matrix, methods for obtaining the interval-set attribute reductions are given.
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Received: 15 April 2018
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| Fund:Supported by National Natural Science Foundation of China(No.10901025,11501048,61772019,61603278) |
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Corresponding Authors:
MA Jianmin(Corresponding author), Ph.D., professor. Her research interests include rough set, granular computing and concept lattice
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| About author:: HU Lingling, master student. Her research interests include formal concept analysis and rough set. |
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2018, Vol. 31 
