Journal
ANNALS OF OPERATIONS RESEARCH
Volume 148, Issue 1, Pages 189-201Publisher
SPRINGER
DOI: 10.1007/s10479-006-0084-x
Keywords
feature selection; genomics; proteomics; logical analysis of data; LAD; patterns
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A major difficulty in bioinformatics is due to the size of the datasets, which contain frequently large numbers of variables. In this study, we present a two-step procedure for feature selection. In a first filtering stage, a relatively small subset of features is identified on the basis of several criteria. In the second stage, the importance of the selected variables is evaluated based on the frequency of their participation in relevant patterns and low impact variables are eliminated. This step is applied iteratively, until arriving to a Pareto-optimal support set, which balances the conflicting criteria of simplicity and accuracy.
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