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ITR-Score algorithm: An efficient Trace ratio criterion based algorithm for supervised dimensionality reduction

  • Mingbo Zhao
  • , Zhao Zhang
  • , Tommy W.S. Chow

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

Dimensionality reduction has been a fundamental tool when dealing with high-dimensional dataset. And trace ration optimization has been widely used in dimensionality reduction because Trace ratio can directly reflect the similarity (Euclidean distance) of data points. Conventionally, there is no close-form solution to the original trace ratio problem. Prior works have indicated that trace ratio problem can be solved by an iterative way. In this paper, we propose an efficient algorithm to find the optimal solutions. The proposed algorithm can be easily extended to its corresponding kernel version for handling the nonlinear problems. Finally, we evaluate our proposed algorithm based on extensive simulations of real world datasets. The results show our proposed method is able to deliver marked improvements over other supervised and unsupervised algorithms. © 2011 IEEE.
Original languageEnglish
Title of host publicationProceedings of the International Joint Conference on Neural Networks
Pages145-152
DOIs
Publication statusPublished - 2011
Event2011 International Joint Conference on Neural Network, IJCNN 2011 - San Jose, United States
Duration: 31 Jul 20115 Aug 2011
https://neural.memberclicks.net/assets/docs/2011%20ijcnn%20program%20book.pdf

Conference

Conference2011 International Joint Conference on Neural Network, IJCNN 2011
PlaceUnited States
CitySan Jose
Period31/07/115/08/11
Internet address

Research Keywords

  • Dimensionality reduction
  • Discriminative learning
  • Trace ratio criterion

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