Towards cost-sensitive learning for real-world applications

  • Authors:
  • Xu-Ying Liu;Zhi-Hua Zhou

  • Affiliations:
  • School of Computer Science and Engineering, Southeast University, China;National Key Laboratory for Novel Software Technology, Nanjing University, China

  • Venue:
  • PAKDD'11 Proceedings of the 15th international conference on New Frontiers in Applied Data Mining
  • Year:
  • 2011

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Abstract

Many research work in cost-sensitive learning focused on binary class problems and assumed that the costs are precise. But real-world applications often have multiple classes and the costs cannot be obtained precisely. It is important to address these issues for cost-sensitive learning to be more useful for real-world applications. This paper gives a short introduction to cost-sensitive learning and then summaries some of our previous work related to the above two issues: (1) The analysis of why traditional Rescaling method fails to solve multi-class problems and our method Rescalenew . (2) The problem of learning with cost intervals and our CISVM method. (3) The problem of learning with cost distributions and our CODIS method.