Multiclass Lagrangian support vector machine

Jae Pil Hwang, Baehoon Choi, In Wha Hong, Euntai Kim

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


A support vector machine (SVM) has been developed for two-class problems, although its application to multiclass problems is not straightforward. This paper proposes a new Lagrangian SVM (LSVM) for application to multiclass problems. The multiclass Lagrangian SVM is formulated as a single optimization problem considering all the classes together, and a training method tailored to the multiclass problem is presented. A multiclass output representation matrix is defined to simplify the optimization formulation and associated training method. The proposed method is applied to some benchmark datasets in repository, and its effectiveness is demonstrated via simulation.

Original languageEnglish
Pages (from-to)703-710
Number of pages8
JournalNeural Computing and Applications
Issue number3-4
Publication statusPublished - 2013 Mar

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education, Science and Technology (2011-0005274).

All Science Journal Classification (ASJC) codes

  • Software
  • Artificial Intelligence


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