Applications of Mathematics

, Volume 58, Issue 5, pp 493–509

A proximal ANLS algorithm for nonnegative tensor factorization with a periodic enhanced line search

Authors

  • Douglas Bunker
    • Department of MathematicsUniversity of Michigan-Flint
  • Lixing Han
    • Department of MathematicsUniversity of Michigan-Flint
    • Research Center for Mathematics and EconomicsTianjin University of Finance and Economics
Article

DOI: 10.1007/s10492-013-0026-2

Cite this article as:
Bunker, D., Han, L. & Zhang, S. Appl Math (2013) 58: 493. doi:10.1007/s10492-013-0026-2

Abstract

The Alternating Nonnegative Least Squares (ANLS) method is commonly used for solving nonnegative tensor factorization problems. In this paper, we focus on algorithmic improvement of this method. We present a Proximal ANLS (PANLS) algorithm to enforce convergence. To speed up the PANLS method, we propose to combine it with a periodic enhanced line search strategy. The resulting algorithm, PANLS/PELS, converges to a critical point of the nonnegative tensor factorization problem under mild conditions. We also provide some numerical results comparing the ANLS and PANLS/PELS methods.

Keywords

nonnegative tensor factorizationproximal methodalternating least squaresenhanced line searchglobal convergence

MSC 2010

15A6965K0565F99

Copyright information

© Institute of Mathematics of the Academy of Sciences of the Czech Republic, Praha, Czech Republic 2013