QUANTIFICATION OF UNCERTAINTY IN CLASSIFICATION RULES DISCOVERED FROM DATABASES |
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Authors: | Y Xiang S K M Wong N Cercone |
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Affiliation: | Department of Computer Science, University of Regina, Regina, Saskatchewan, Canada S4S 0A2 |
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Abstract: | We apply rough set constructs to inductive learning from a database. A design guideline is suggested, which provides users the option to choose appropriate attributes, for the construction of data classification rules. Error probabilities for the resultant rule are derived. A classification rule can be further generalized using concept hierarchies. The condition for preventing overgeneralization is derived. Moreover, given a constraint, an algorithm for generating a rule with minimal error probability is proposed. |
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Keywords: | inductive classification rules databases rough set error probabilities |
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