Online training of support vector classifier

Support vector machine (SVM) provides accurate classification but suffers from a large amount of computation. This paper presents an online support vector classifier (OSVC) for the pattern classification problems that have input data supplied in sequence rather than in batch. The OSVC has been applied to three benchmark problems: Iris data classification, image segmentation and numerical pattern recognition. The results obtained from the wide range of benchmark problems show that the OSVC algorithm has a much faster convergence and results in a smaller number of support vectors for the same quality of pattern classification and a better generalization performance in comparison with the existing algorithms. (C) 2003 Pattern Recognition Society. Published by Elsevier Science Ltd. All rights reserved.