4.6 Article

METHOD OF ALTERNATING CONTRACTIONS AND ITS APPLICATIONS TO SOME CONVEX OPTIMIZATION PROBLEMS

期刊

SIAM JOURNAL ON OPTIMIZATION
卷 31, 期 3, 页码 1947-1970

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SIAM PUBLICATIONS
DOI: 10.1137/18M1217395

关键词

convex optimization; combinatorial optimization; linear programming

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The proposed algorithm in this article is an advancement of alternating projections method for convex programming. It can efficiently solve combinatorial optimization problems in polynomial time. Additionally, it is a Fully polynomial time approximation Scheme for a wide range of optimization problems with an exponential or infinite number of constraints.
This article proposes an algorithm for convex programming which can be viewed as a further development of the method of alternating projections. Some combinatorial problems like the maximum matchings and the maximum simple b-matchings can be solved in polynomial time by this algorithm. More generally, it runs in polynomial time for any binary linear problem where the objective function is defined by a binary vector and the convex hull of the feasible set can be described by a system of the form Ax <= b, x >= 0, given by a polynomial-time separation oracle, where A is a nonnegative matrix. Also, our algorithm is an Fully polynomial time approximation Scheme for a wide range of optimization problems with an exponential or infinite number of constraints given by a separation oracle.

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