Tensor Sparse Coding for Positive Definite Matrices

In recent years, there has been extensive research on sparse representation of vector-valued signals. In the matrix case, the data points are merely vectorized and treated as vectors thereafter (for e.g., image patches). However, this approach cannot be used for all matrices, as it may destroy the i...

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Veröffentlicht in:	IEEE transactions on pattern analysis and machine intelligence
Hauptverfasser:	Sivalingam, Ravishankar, Boley, Daniel, Morellas, Vassilios, Papanikolopoulos, Nikos
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	United States 02.08.2013
ISSN:	1939-3539
Online-Zugang:	Volltext
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