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Constructing boosting algorithms from SVMs: an application to one-class classification

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4 Author(s)
Ratsch, G. ; RSISE, Australian Nat. Univ., Canberra, ACT, Australia ; Mika, S. ; Scholkopf, B. ; Muller, K.

We show via an equivalence of mathematical programs that a support vector (SV) algorithm can be translated into an equivalent boosting-like algorithm and vice versa. We exemplify this translation procedure for a new algorithm: one-class leveraging, starting from the one-class support vector machine (1-SVM). This is a first step toward unsupervised learning in a boosting framework. Building on so-called barrier methods known from the theory of constrained optimization, it returns a function, written as a convex combination of base hypotheses, that characterizes whether a given test point is likely to have been generated from the distribution underlying the training data. Simulations on one-class classification problems demonstrate the usefulness of our approach

Published in:

Pattern Analysis and Machine Intelligence, IEEE Transactions on  (Volume:24 ,  Issue: 9 )

Date of Publication:

Sep 2002

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