Journal
NEUROCOMPUTING
Volume 55, Issue 1-2, Pages 57-77Publisher
ELSEVIER
DOI: 10.1016/S0925-2312(03)00435-1
Keywords
multi-classification; support vector machines; robustness
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The problem of multi-class classification is usually solved by a decomposing and reconstruction procedure when two-class decision machines are implied. During the decomposing phase, training data are partitioned into two classes in several manners and two-class learning machines are trained. To assign the class for a new entry, machines' outputs are evaluated in a specific pulling scheme. This article introduces the Support Vector Classification-Regression machine for K-class classification purposes (K-SVCR), a new training algorithm with ternary outputs {-1,0,+1} based on Vapnik's Support Vector theory. This new machine evaluates all the training data into a 1-versus-1-versus-rest structure during the decomposing phase by using a mixed classification and regression SV Machine (SVM) formulation. For the reconstruction, a specific pulling scheme considering positive and negative votes has been designed, making the overall learning architecture more fault-tolerant as it will be demonstrated. (C) 2003 Elsevier B.V. All rights reserved.
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