Abstract
Attribute reductions is an important topic in formal concept analysis. The existing attribute reduction approaches are dominated by global reductions and there is very limited investigation on local reductions. This paper is devoted to the study of decision rule specific reduction for formal decision context and concept specific reduction for formal context. The notion of decision rule specific reduction is proposed and the related reduction methods are presented. The relationships between existing reduction approaches and decision rule specific reduction approaches are analyzed. Accordingly, we make an analysis of attributes based on three-way classification by using reductions. Furthermore, the notion of concept specific reduction for formal context is proposed and the concept specific reduction methods are examined. The relationship between concept specific reduction and decision rule specific reduction is surveyed.
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This work has been partially supported by the National Natural Science Foundation of China (Grant nos. 61473239, 61372187).
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Qin, K., Lin, H. & Jiang, Y. Local attribute reductions of formal contexts. Int. J. Mach. Learn. & Cyber. 11, 81–93 (2020). https://doi.org/10.1007/s13042-019-00956-z
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DOI: https://doi.org/10.1007/s13042-019-00956-z