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| 形式背景的下近似协调与粒协调的关系 | |
| 引用本文： | 陈东晓,李进金. 形式背景的下近似协调与粒协调的关系[J]. 华侨大学学报(自然科学版), 2020, 41(1): 130-136. DOI: 10.11830/ISSN.1000-5013.201907035 |
| 作者姓名： | 陈东晓 李进金 |
| 作者单位： | 1. 华侨大学 数学科学学院, 福建 泉州 362021;2. 闽南师范大学 数学科学与统计学院, 福建 漳州 363000 |
| 摘 要： | 在形式背景中引入上、下近似算子和上、下近似协调集引入证据理论的信任函数与似然函数,讨论它们与上、下近似协调集的关系,进而得到决策形式背景的下近似协调与粒协调是等价的. |
| 关 键 词： | 形式背景 近似算子 近似协调集 粒协调 |
Relationships Between Lower Approximation Consistent and Granular Consistent in Formal Contexts |
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| CHEN Dongxiao1,LI Jinjin1,' target="_blank" rel="external">2. Relationships Between Lower Approximation Consistent and Granular Consistent in Formal Contexts[J]. Journal of Huaqiao University(Natural Science), 2020, 41(1): 130-136. DOI: 10.11830/ISSN.1000-5013.201907035 | |
| Authors: | CHEN Dongxiao1,LI Jinjin1,' target=" _blank" rel=" external" >2 |
| Affiliation: | 1. School of Mathematical Sciences, Huaqiao University, Quanzhou 362021, China; 2. School of Mathematical Sciences and Statistics, Minnan Normal University, Zhangzhou 363000, China |
| Abstract: | In this paper, the upper and lower approximation operators and the upper and lower approximation consistent sets are introduced into formal context. The belief and plausibility functions from the evidence theory are employed to characterize upper and lower approximation consistent sets. Then the equivalence between lower approximation consistent and granular consistent of decision formal context is obtained. |
| Keywords: | formal context approximation operators approximation consistent set granular consistent |
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