A simplicial branch-and-bound algorithm for solving quadratically constrained quadratic programs
成果类型:
Article
署名作者:
Linderoth, J
署名单位:
Lehigh University
刊物名称:
MATHEMATICAL PROGRAMMING
ISSN/ISSBN:
0025-5610
DOI:
10.1007/s10107-005-0582-7
发表日期:
2005
页码:
251-282
关键词:
global optimization
2nd-order cone
relaxation
摘要:
We propose a branch-and-bound algorithm for solving nonconvex quadratically-constrained quadratic programs. The algorithm is novel in that branching is done by partitioning the feasible region into the Cartesian product of two-dimensional triangles and rectangles. Explicit formulae for the convex and concave envelopes of bilinear functions over triangles and rectangles are derived and shown to be second-order cone representable. The usefulness of these new relaxations is demonstrated both theoretically and computationally.