Operations Research Transactions ›› 2014, Vol. 18 ›› Issue (2): 49-58.

• Original Articles • Previous Articles     Next Articles

A new wide neighborhood infeasible interior-point algorithm for semidefinite programming

FENG Zengzhe1,*, ZHANG Xixue1, LIU Jianbo2, FANG Liang3   

  1. 1. College of Information and Engineering, Taishan Medical University, Tai'an 271016, Shandong, China, 2. Department of Scientific Research, Taishan Medical University, Tai'an 271016, Shandong, China, 3. College of Mathematics and Statistics, Taishan University, Tai'an 271021, Shandong, China
  • Online:2014-06-15 Published:2014-06-15

Abstract: A new infeasible interior-point algorithm for solving semidefinite programming is proposed, based on a new wide neighborhood. Under suitable assumptions, it shows that the algorithm's iterate complexity bound is O(\sqrt{n}L), which is better than the best result O(n\sqrt{n}L) in this class algorithm so far, and is the same as the best known bound of feasible interior point algorithms.

Key words: semidefinite programming, infeasible interior-point algorithm, wide neighborhood, iteration complexity bound

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