Journal of the Operations Research Society of China ›› 2023, Vol. 11 ›› Issue (4): 735-758.doi: 10.1007/s40305-022-00425-5

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The Low-Rank Approximation of Fourth-Order Partial-Symmetric and Conjugate Partial-Symmetric Tensor

Amina Sabir1,2, Peng-Fei Huang2, Qing-Zhi Yang2   

  1. 1. School of Mathematics and Statistics, Kashi University, Kashi, 844008, Xinjiang, China;
    2. School of Mathematical Sciences and LPMC, Nankai University, Tianjin, 300071, China
  • Received:2021-10-29 Revised:2022-03-31 Online:2023-12-30 Published:2023-12-26
  • Contact: Peng-Fei Huang, Amina Sabir, Qing-Zhi Yang E-mail:huangpf@mail.nankai.edu.cn;amina_sabir1@126.com;qz-yang@nankai.edu.cn
  • Supported by:
    This work was funded by the National Natural Science Foundation of China (Nos. 11671217 and 12071234) and Key Program of Natural Science Foundation of Tianjin, China (No. 21JCZDJC00220).

Abstract: We present an orthogonal matrix outer product decomposition for the fourth-order conjugate partial-symmetric (CPS) tensor and show that the greedy successive rank-one approximation (SROA) algorithm can recover this decomposition exactly. Based on this matrix decomposition, the CP rank of CPS tensor can be bounded by the matrix rank, which can be applied to low-rank tensor completion. Additionally, we give the rank-one equivalence property for the CPS tensor based on the SVD of matrix, which can be applied to the rank-one approximation for CPS tensors.

Key words: Conjugate partial-symmetric tensor, Approximation algorithm, Rank-one equivalence property, Convex relaxation

CLC Number: