We discuss a multilinear generalization of the singular value decomposition. There is
a strong analogy between several properties of the matrix and the higher-order tensor decomposition;
uniqueness, link with the matrix eigenvalue decomposition, first-order perturbation effects, etc., are
analyzed. We investigate how tensor symmetries affect the decomposition and propose a multilinear
generalization of the symmetric eigenvalue decomposition for pair-wise symmetric tensors
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