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CLC number: TN79

On-line Access: 2010-08-02

Received: 2009-08-14

Revision Accepted: 2009-12-04

Crosschecked: 2010-05-04

Cited: 6

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Journal of Zhejiang University SCIENCE C 2010 Vol.11 No.8 P.620-628


A parallel and scalable digital architecture for training support vector machines

Author(s):  Kui-kang Cao, Hai-bin Shen, Hua-feng Chen

Affiliation(s):  Institute of VLSI Design, Zhejiang University, Hangzhou 310027, China, Zhejiang University of Media and Communications, Hangzhou 310027, China

Corresponding email(s):   caokk@vlsi.zju.edu.cn, shb@vlsi.zju.edu.cn

Key Words:  Support vector machine (SVM), Sequential minimal optimization (SMO), Field-programmable gate array (FPGA), Scalable architecture

Kui-kang Cao, Hai-bin Shen, Hua-feng Chen. A parallel and scalable digital architecture for training support vector machines[J]. Journal of Zhejiang University Science C, 2010, 11(8): 620-628.

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%A Hai-bin Shen
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%DOI 10.1631/jzus.C0910500

T1 - A parallel and scalable digital architecture for training support vector machines
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A1 - Hua-feng Chen
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DOI - 10.1631/jzus.C0910500

To facilitate the application of support vector machines (SVMs) in embedded systems, we propose and test a parallel and scalable digital architecture based on the sequential minimal optimization (SMO) algorithm for training SVMs. By taking advantage of the mature and popular SMO algorithm, the numerical instability issues that may exist in traditional numerical algorithms are avoided. The error cache updating task, which dominates the computation time of the algorithm, is mapped into multiple processing units working in parallel. Experiment results show that using the proposed architecture, SVM training problems can be solved effectively with inexpensive fixed-point arithmetic and good scalability can be achieved. This architecture overcomes the drawbacks of the previously proposed SVM hardware that lacks the necessary flexibility for embedded applications, and thus is more suitable for embedded use, where scalability is an important concern.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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Open peer comments: Debate/Discuss/Question/Opinion



2010-08-02 17:08:55

Reviewer: This paper presents an FPGA implementation of the SMO algorithm for Support Vector Machine training. The paper is well written and easy to read. The results are also good. The proposed architecture seems sensible. Overall, I like the paper and think it represents solid work.

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