LIBSVM: A Library for Support Vector Machines

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LIBSVM: A Library for Support Vector MachinesChih-Chung Chang and Chih-Jen LinDepartment of Computer ScienceNational Taiwan University, Taipei, TaiwanEmail: version: 2001Last updated: January 20, 2021AbstractLIBSVM is a Library for Support Vector Machines (SVMs). We have beenactively developing this package since the year 2000. The goal is to help usersto easily apply SVM to their applications. LIBSVM has gained wide popu-larity in machine learning and many other areas. In this article, we presentall implementation details of LIBSVM. Issues such as solving SVM optimiza-tion problems, theoretical convergence, multi-class classification, probabilityestimates, and parameter selection are discussed in :Classification,LIBSVM, optimization, regression, Support Vector ma-chines, SVM1 IntroductionSupport Vector Machines (SVMs) are a popular machine learning method for classifi-cation, regression, and other learning tasks.

satis es w= Xl i=1 y i i˚(x i) (3) and the decision function is sgn wT˚(x) + b = sgn Xl i=1 y i iK(x i;x) + b!: We store y i 4 i 8i, b, label names, support vectors, and other information such as kernel parameters in the model for prediction. 2.2 -Support Vector Classi cation The -support vector classi cation (Sch olkopf et al., 2000 ...

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