Subgroup discovery: An experiment in functional genomics (CROSBI ID 124499)
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Lavrač, Nada ; Gamberger, Dragan
engleski
Subgroup discovery: An experiment in functional genomics
Functional genomics is a typical scientific discovery domain characterized by a very large number of attributes (genes) relative to the number of examples (observations). This work presents an approach to subgroup discovery in supervised inductive learning of short rules that are appropriate for human interpretation. The approach is based on the subgroup discovery rule learning framework, enhanced by methods of restricting the hypothesis search space by exploiting the relevancy of features that enter the rule construction process as well as their combinations that form the rules. A multi-class functional genomics problem of classifying fourteen cancer types based on more than 16000 gene expression values is used to illustrate the methodology.
Machine learning; Subgroup discovery; Functional genomics
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