Sparse non-negative tensor factorization using columnwise coordinate descent
Many applications in computer vision, biomedical informatics, and graphics deal with data in the matrix or tensor form. Non-negative matrix and tensor factorization, which extract data-dependent non-negative basis functions, have been commonly applied for the analysis of such data for data compressi...
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          | Published in | Pattern recognition Vol. 45; no. 1; pp. 649 - 656 | 
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| Main Authors | , , , | 
| Format | Journal Article | 
| Language | English | 
| Published | 
        Kidlington
          Elsevier Ltd
    
        2012
     Elsevier  | 
| Subjects | |
| Online Access | Get full text | 
| ISSN | 0031-3203 1873-5142  | 
| DOI | 10.1016/j.patcog.2011.05.015 | 
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| Summary: | Many applications in computer vision, biomedical informatics, and graphics deal with data in the matrix or tensor form. Non-negative matrix and tensor factorization, which extract data-dependent non-negative basis functions, have been commonly applied for the analysis of such data for data compression, visualization, and detection of hidden information (factors). In this paper, we present a fast and flexible algorithm for sparse non-negative tensor factorization (SNTF) based on columnwise coordinate descent (CCD). Different from the traditional coordinate descent which updates one element at a time, CCD updates one column vector simultaneously. Our empirical results on higher-mode images, such as brain MRI images, gene expression images, and hyperspectral images show that the proposed algorithm is 1–2 orders of magnitude faster than several state-of-the-art algorithms.
► We present a columnwise coordinate descent (CCD) algorithm for sparse non-negative tensor factorization (SNTF). ► Different from the traditional coordinate descent, CCD updates one column vector simultaneously. ► The proposed algorithm is 1–2 orders of magnitude faster than several state-of-the-art algorithms. | 
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23  | 
| ISSN: | 0031-3203 1873-5142  | 
| DOI: | 10.1016/j.patcog.2011.05.015 |