Improving complexity of structured convex optimization problems using self-concordant barriers

Improving complexity of structured convex optimization problems using self-concordant barriers

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Article ID: iaor20032048
Country: Netherlands
Volume: 143
Issue: 2
Start Page Number: 291
End Page Number: 310
Publication Date: Dec 2002
Journal: European Journal of Operational Research
Authors:
Abstract:

The purpose of this paper is to provide improved complexity results for several classes of structured convex optimization problems using the theory of self-concordant functions developed by Nesterov and Nemirovski. We describe the classical short-step interior-point method and optimize its parameters in order to provide the best possible iteration bound. We also discuss the necessity of introducing two parameters in the definition of self-concordancy and which one is the best to fix. A lemma due to den Hertog et al. is improved, which allows us to review several classes of structured convex optimization problems and improve the corresponding complexity results.

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