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作者:

Fu, Yifan (Fu, Yifan.) | Gao, Junbin (Gao, Junbin.) | Sun, Yanfeng (Sun, Yanfeng.) (学者:孙艳丰) | Hong, Xia (Hong, Xia.)

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摘要:

Traditional dictionary learning algorithms are used for finding a sparse representation on high dimensional data by transforming samples into a one-dimensional (ID) vector. This ID model loses the inherent spatial structure property of data. An alternative solution is to employ Tensor Decomposition for dictionary learning on their original structural form a tensor by learning multiple dictionaries along each mode and the corresponding sparse representation in respect to the Kronecker product of these dictionaries. To learn tensor dictionaries along each mode, all the existing methods update each dictionary iteratively in an alternating manner. Because atoms from each mode dictionary jointly make contributions to the spar sity of tensor, existing works ignore atoms correlations between different mode dictionaries by treating each mode dictionary independently. In this paper, we propose a joint multiple dictionary learning method for tensor sparse coding, which explores atom correlations for sparse representation and updates multiple atoms from each mode dictionary simultaneously. In this algorithm, the Frequent-Pattern Tree (FP-tree) mining algorithm is employed to exploit frequent atom patterns in the sparse representation. Inspired by the idea of K-SVD, we develop a new dictionary update method that jointly updates elements in each pattern. Experimental results demonstrate our method outperforms other tensor based dictionary learning algorithms. © 2014 IEEE.

关键词:

Atoms Clustering algorithms Codes (symbols) Iterative methods Learning algorithms Learning systems Metadata Tensors Trees (mathematics)

作者机构:

  • [ 1 ] [Fu, Yifan]School of Computing and Mathematics, Charles Sturt University, Bathurst; NSW; 2795, Australia
  • [ 2 ] [Gao, Junbin]School of Computing and Mathematics, Charles Sturt University, Bathurst; NSW; 2795, Australia
  • [ 3 ] [Sun, Yanfeng]Beijing Municipal Key Lab of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Hong, Xia]School of Systems Engineering University of Reading, Reading; RG6 6AY, United Kingdom

通讯作者信息:

  • [fu, yifan]school of computing and mathematics, charles sturt university, bathurst; nsw; 2795, australia

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年份: 2014

页码: 2957-2964

语种: 英文

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SCOPUS被引频次: 10

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