Tensor completion via a multi-linear low-n-rank factorization model

详细信息    查看全文

• 作者：Huachun Tan^a ; ^{tanhc@bit.edu.cn" class="auth_mail} ; ^{tanhc00@gmail.com" class="auth_mail}Author Vitae ; Bin Cheng^a ; ^{13012991141@bit.edu.cn" class="auth_mail}Author Vitae ; Wuhong Wang^a ; ^{wangwuhong@bit.edu.cn" class="auth_mail}Author Vitae ; Yu-Jin Zhang^b ; ^{zhang-yj@mail.tsinghua.edu.cn" class="auth_mail}Author Vitae ; Bin Ran^c ; ^{bran@wisc.edu" class="auth_mail}Author Vitae
• 关键词：Tensor completion ; Multi-linear low-n-rank factorization ; Nonlinear Gauss&ndash ; Seidal method ; Singular value decomposition
• 刊名：Neurocomputing
• 出版年：10 June, 2014
• 年：2014
• 卷：133
• 期：Complete
• 页码：161-169
• 全文大小：1476 K

文摘

The tensor completion problem is to recover a low-n-rank tensor from a subset of its entries. The main solution strategy has been based on the extensions of trace norm for the minimization of tensor rank via convex optimization. This strategy bears the computational cost required by the singular value decomposition (SVD) which becomes increasingly expensive as the size of the underlying tensor increase. In order to reduce the computational cost, we propose a multi-linear low-n-rank factorization model and apply the nonlinear Gauss-Seidal method that only requires solving a linear least squares problem per iteration to solve this model. Numerical results show that the proposed algorithm can reliably solve a wide range of problems at least several times faster than the trace norm minimization algorithm.