Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1142243 | Operations Research Letters | 2015 | 6 Pages |
Abstract
We study the problem of approximating nonconvex quadratic optimization with ellipsoid constraints (ECQP) and establish a new semidefinite approximation bound, which greatly improves Tseng’s result (Tseng, 2003). As an application, we strictly improve the approximation ratio for the assignment-polytope constrained quadratic program. Finally, based on a randomized algorithm, we obtain a new approximation bound for (ECQP) which is sharp in the order of the number of the ellipsoid constraints.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Yong Hsia, Shu Wang, Zi Xu,