A new column generation algorithm for Logical Analysis of Data

Pierre Hansen () and Christophe Meyer ()

Annals of Operations Research, 2011, vol. 188, issue 1, 215-249

Abstract: We present a new column generation algorithm for the determination of a classifier in the two classes LAD (Logical Analysis of Data) model. Unlike existing algorithms who seek a classifier that at the same time maximizes the margin of correctly classified observations and minimizes the amount of violations of incorrectly classified observations, we fix the margin to a difficult-to-achieve target and minimize a piecewise convex linear function of the violation of incorrectly classified observations. Moreover a part of the training set, called control set, is reserved to select, among all feasible classifiers found by the algorithm, the one with highest performance on that set. One advantage of the proposed algorithm is that it essentially does not require any calibration. Computational results are presented that show the effectiveness of this approach. Copyright Springer Science+Business Media, LLC 2011

Keywords: Logical analysis of data; Column generation; Classification (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (6)

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DOI: 10.1007/s10479-011-0850-2

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