2005 | OriginalPaper | Buchkapitel
A New Perspective on an Old Perceptron Algorithm
verfasst von : Shai Shalev-Shwartz, Yoram Singer
Erschienen in: Learning Theory
Verlag: Springer Berlin Heidelberg
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We present a generalization of the Perceptron algorithm. The new algorithm performs a Perceptron-style update whenever the margin of an example is smaller than a predefined value. We derive worst case mistake bounds for our algorithm. As a byproduct we obtain a new mistake bound for the Perceptron algorithm in the inseparable case. We describe a multiclass extension of the algorithm. This extension is used in an experimental evaluation in which we compare the proposed algorithm to the Perceptron algorithm.