On the Nuclear Norm and the Singular Value Decomposition of Tensors

被引:0
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作者
Harm Derksen
机构
[1] University of Michigan,Department of Mathematics
关键词
Tensor decomposition; Nuclear norm; Singular value decomposition; PARAFAC; CANDECOMP; 15A69; 15A18;
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摘要
Finding the rank of a tensor is a problem that has many applications. Unfortunately, it is often very difficult to determine the rank of a given tensor. Inspired by the heuristics of convex relaxation, we consider the nuclear norm instead of the rank of a tensor. We determine the nuclear norm of various tensors of interest. Along the way, we also do a systematic study various measures of orthogonality in tensor product spaces and we give a new generalization of the singular value decomposition to higher-order tensors.
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页码:779 / 811
页数:32
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