Journal of the Operations Research Society of China ›› 2024, Vol. 12 ›› Issue (4): 847-873.doi: 10.1007/s40305-023-00455-7

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Low Rank Tensor Decompositions and Approximations

Jiawang Nie1, Li Wang2, Zequn Zheng1   

  1. 1 Department of Mathematics, University of California San Diego, La Jolla, CA 92093, USA;
    2 Department of Mathematics, University of Texas at Arlington, Arlington, TX 76019, USA
  • Received:2022-04-15 Online:2024-12-30 Published:2024-12-12
  • Contact: Jiawang Nie, Li Wang, Zequn Zheng E-mail:njw@math.ucsd.edu;li.wang@uta.edu;zez084@ucsd.edu
  • Supported by:
    Jiawang Nie is partially supported by the NSF grant DMS-2110780. Li Wang is partially supported by the NSF grant DMS-2009689.

Abstract: There exist linear relations among tensor entries of low rank tensors. These linear relations can be expressed by multi-linear polynomials, which are called generating polynomials. We use generating polynomials to compute tensor rank decompositions and low rank tensor approximations. We prove that this gives a quasi-optimal low rank tensor approximation if the given tensor is sufficiently close to a low rank one.

Key words: Tensor, Decomposition, Rank, Approximation, Generating polynomial

CLC Number: