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Feature weighted SVMs using receiver operating characteristics

  • Shaoyi Zhang
  • , M. Maruf Hossain
  • , Md Rafiul Hassan
  • , James Bailey
  • , Kotagiri Ramamohanarao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

Support Vector Machines (SVMs) are a leading tool in classification and pattern recognition and the kernel function is one of its most important components. This function is used to map the input space into a high dimensional feature space. However, it can perform rather poorly when there are too many dimensions (e.g. for gene expression data) or when there is a lot of noise. In this paper, we investigate the suitability of using a new feature weighting scheme for SVM kernel functions, based on receiver operating characteristics (ROC). This strategy is clean, simple and surprisingly effective. We experimentally demonstrate that it can significantly and substantially boost classification performance, across a range of datasets.

Original languageEnglish
Title of host publicationSociety for Industrial and Applied Mathematics - 9th SIAM International Conference on Data Mining 2009, Proceedings in Applied Mathematics 133
PublisherSociety for Industrial and Applied Mathematics Publications
Pages493-504
Number of pages12
ISBN (Print)9780898716825
DOIs
StatePublished - 2009
Externally publishedYes
Event9th SIAM International Conference on Data Mining, SDM 2009 - Sparks, NV, United States
Duration: 30 Apr 20092 May 2009

Publication series

NameSociety for Industrial and Applied Mathematics - 9th SIAM International Conference on Data Mining 2009, Proceedings in Applied Mathematics
Volume1

Conference

Conference9th SIAM International Conference on Data Mining, SDM 2009
Country/TerritoryUnited States
CitySparks, NV
Period30/04/092/05/09

Keywords

  • Classification
  • Distance function
  • Receiver operating characteristics
  • Support vector machine

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Software
  • Applied Mathematics

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