Abstract
In this paper, we generalize a primal–dual path-following interior-point algorithm for linear optimization to symmetric optimization by using Euclidean Jordan algebras. The proposed algorithm is based on a new technique for finding the search directions and the strategy of the central path. At each iteration, we use only full Nesterov–Todd steps. Moreover, we derive the currently best known iteration bound for the small-update method. This unifies the analysis for linear, second-order cone, and semidefinite optimizations.
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Acknowledgements
The authors would like to thank Professor Florian A. Potra and the anonymous referees for their useful suggestions which helped improve the presentation of this paper. This work was supported by National Natural Science Foundation of China (Nos. 11001169, 11071158), China Postdoctoral Science Foundation (No. 20100480604) and the Key Disciplines of Shanghai Municipality (No. S30104).
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Communicated by Florian A. Potra.
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Wang, G.Q., Bai, Y.Q. A New Full Nesterov–Todd Step Primal–Dual Path-Following Interior-Point Algorithm for Symmetric Optimization. J Optim Theory Appl 154, 966–985 (2012). https://doi.org/10.1007/s10957-012-0013-x
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DOI: https://doi.org/10.1007/s10957-012-0013-x