Abstract
This paper is motivated by the fact that mixed integer nonlinear programming is an important and difficult area for which there is a need for developing new methods and software for solving large-scale problems. Moreover, both fundamental building blocks, namely mixed integer linear programming and nonlinear programming, have seen considerable and steady progress in recent years. Wishing to exploit expertise in these areas as well as on previous work in mixed integer nonlinear programming, this work represents the first step in an ongoing and ambitious project within an open-source environment. COIN-OR is our chosen environment for the development of the optimization software. A class of hybrid algorithms, of which branch-and-bound and polyhedral outer approximation are the two extreme cases, are proposed and implemented. Computational results that demonstrate the effectiveness of this framework are reported. Both the library of mixed integer nonlinear problems that exhibit convex continuous relaxations, on which the experiments are carried out, and a version of the software used are publicly available.
Original language | English (US) |
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Pages (from-to) | 186-204 |
Number of pages | 19 |
Journal | Discrete Optimization |
Volume | 5 |
Issue number | 2 |
DOIs | |
State | Published - May 2008 |
Funding
Pierre Bonami, Carl D. Laird and Nicolas Sawaya were supported in part by a grant from IBM. Gérard Cornuéjols was supported in part by NSF grant CMMI-0653419, ANR grant BLAN06-1-138894 and ONR grant N00014-03-1-0188. Part of this research was carried out when Andrea Lodi was a Herman Goldstine Fellow in the Department of Mathematical Sciences of the IBM T.J. Watson Research Center, whose support is strongly acknowledged. François Margot was supported in part by a grant from IBM and ONR grant N00014-03-1-0188.
Keywords
- Branch-and-bound
- MINLP test problems
- Mixed integer nonlinear programming
- Open-source
- Outer-approximation
ASJC Scopus subject areas
- Theoretical Computer Science
- Computational Theory and Mathematics
- Applied Mathematics