Maximum margin criterion with tensor representation

  • Authors:
  • Rong-Xiang Hu;Wei Jia;De-Shuang Huang;Ying-Ke Lei

  • Affiliations:
  • Hefei Institute of Intelligent Machines, Chinese Academy of Science, PO Box 1130, Hefei 230031, China and Department of Automation, University of Science and Technology of China, Hefei 230027, Chi ...;Hefei Institute of Intelligent Machines, Chinese Academy of Science, PO Box 1130, Hefei 230031, China;Hefei Institute of Intelligent Machines, Chinese Academy of Science, PO Box 1130, Hefei 230031, China;Hefei Institute of Intelligent Machines, Chinese Academy of Science, PO Box 1130, Hefei 230031, China and Department of Automation, University of Science and Technology of China, Hefei 230027, Chi ...

  • Venue:
  • Neurocomputing
  • Year:
  • 2010

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Abstract

In this paper, we propose tensor based Maximum Margin Criterion algorithm (TMMC) for supervised dimensionality reduction. In TMMC, an image object is encoded as an nth-order tensor, and its 2-D representation is directly treated as matrix. Meanwhile, the k-mode optimization approach is exploited to iteratively learn multiple interrelated discriminative subspaces for dimensionality reduction of the higher order tensor. TMMC generalizes the traditional MMC based on vector data to the one based on matrix and tensor data, which completes the MMC family in terms of data representation. The results of experiments conducted on four databases show that the accurate recognition rate of TMMC is better than that of the method of Concurrent Subspaces Analysis (CSA), and is comparable with the method of Multilinear Discriminant Analysis (MDA). The experimental results also show that the accurate recognition rate of the tensor/matrix-based methods may not always be better than that of vector-based methods. Reasonable discussions about this phenomenon have been given in this paper.