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An Improved Limited Tolerance Rough Set Model

Authors: Chen Wu, Dandan Li, Komal Narejo


Some extended rough set models in incomplete information system cannot distinguish the two objects that have few known attributes and more unknown attributes; some cannot make a flexible and accurate discrimination. In order to solve this problem, this paper suggests an improved limited tolerance rough set model using two thresholds to control what two objects have a relationship between them in limited tolerance relation and to classify objects. Our practical study case shows the model can get fine and reasonable decision results.

Keywords: Decision rule, Incomplete information system, Rough set model, limited tolerance relation

Digital Object Identifier (DOI):

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