An Extended Rough Set Model for Generalized Incomplete Information Systems Based on α-Limited Dominance Relation

Jing Lan Mo; Yue Jin Lv; Yan Wu

doi:10.4028/www.scientific.net/AMR.532-533.1477

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 532-533An Extended Rough Set Model for Generalized...

An Extended Rough Set Model for Generalized Incomplete Information Systems Based on α-Limited Dominance Relation

Abstract:

In this paper, α - limited dominance relation is defined for the classification of universe in the generalized incomplete information systems in which lost and “do not care” unknown attribute values coexist. Based on the α - limited dominance relation, an extended rough set model is formulated. Moreover, concepts of lower and upper approximations are studied as well as their properties. Finally, an example of evaluation of teaching quality is used to demonstrate that the proposed extended rough set model is feasible and effective in dealing with imprecise and uncertain knowledge.

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Periodical:

Advanced Materials Research (Volumes 532-533)

Pages:

1477-1481

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.532-533.1477

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Online since:

June 2012

Authors:

Jing Lan Mo, Yue Jin Lv, Yan Wu

Keywords:

Generalized Incomplete Information System, Rough Set Model, Rough Set Theory (RST), α - Limited Dominance Relation

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References

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