Abstract
Dominance-based rough set is an important model for ordered decision system, in which knowledge reduction is one of the most important problems. The preference ordering of decision between objects is ignored in existed reduction. This paper proposed a knowledge reduction approach based on inconsistent dominance principle, with which two objects are discernable. Furthermore, the judgment theorems and the discernable matrix are investigated, from which we can obtain a new approach to knowledge reduction in ordered decision system.
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This work is supported by the National Science and Technology Major Project (2014ZX07104-006) and the Hundred Talents Program of CAS (NO.Y21Z110A10).
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Gou, GL., Wang, G. (2015). Inconsistent Dominance Principle Based Attribute Reduction in Ordered Information Systems. In: Ciucci, D., Wang, G., Mitra, S., Wu, WZ. (eds) Rough Sets and Knowledge Technology. RSKT 2015. Lecture Notes in Computer Science(), vol 9436. Springer, Cham. https://doi.org/10.1007/978-3-319-25754-9_10
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DOI: https://doi.org/10.1007/978-3-319-25754-9_10
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