Complexity analysis of interior-point methods yielding the best known iteration bound for semidefinite optimization

Document Type : Review articles

Authors

1 LMFN, Fundamental and Numerical Mathematics Laboratory, Department of Mathematics, Faculty of Science, Ferhat Abbas University, Setif, Algeria

2 LMAH, FR-CNRS-3335, ISCN, 7600 Le Havre, France, University of 8 May 1945 Guelma. BP 401, 24000 Guelma, Algeria

Abstract

The purpose of this paper is to obtain new complexity results for solving the semidefinite optimization (SDO) problem. We define a new proximity function for the SDO by a new kernel function with an efficient logarithmic barrier term. Furthermore, we formulate an algorithm for the large and small-update primal-dual interior-point method (IPM) for the SDO. It is shown that the best result of iteration bounds for large-update methods and small-update methods can be achieved, namely $\mathcal{O}\left(qn^{\frac{q+1}{2q}}\log \frac{n}{\epsilon }\right) $\ for large-update and $\mathcal{O}(q^{2}\sqrt{n}\log \frac{n}{\epsilon })$ for small-update methods, where $q>1.$ The analysis in this paper is new and different from the one using for LO. Several new tools and techniques are derived in this paper. Furthermore, numerical tests to investigate the behavior of the algorithm so as to be compared with other approaches.

Keywords

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Volume 14, Issue 5
May 2023
Pages 287-301
  • Receive Date: 17 December 2022
  • Revise Date: 20 February 2023
  • Accept Date: 22 February 2023