Buchheim C, Liers F, Oswald M (2008)
Publication Status: Published
Publication Type: Book chapter / Article in edited volumes
Publication year: 2008
Publisher: Springer
Edited Volumes: Experimental Algorithms
Series: Lecture Notes in Computer Science
City/Town: Berlin Heidelberg
Book Volume: 5038
Pages Range: 249-262
Event location: Provincetown, MA
ISBN: 9783540685487
DOI: 10.1007/978-3-540-68552-4_19
In many practical applications, the task is to optimize a non-linear function over a well-studied polytope P as, e.g., the matching polytope or the travelling salesman polytope (TSP). In this paper, we focus on quadratic objective functions. Prominent examples are the quadratic assignment and the quadratic knapsack problem; further applications occur in various areas such as production planning or automatic graph drawing. In order to apply branch-and-cut methods for the exact solution of such problems, they have to be linearized. However, the standard linearization usually leads to very weak relaxations. On the other hand, problem-specific polyhedral studies are often time-consuming. Our goal is the design of general separation routines that can replace detailed polyhedral studies of the resulting polytope and that can be used as a black box. As unconstrained binary quadratic optimization is equivalent to the maximum cut problem, knowledge about cut polytopes can be used in our setting. Other separation routines are inspired by the local cuts that have been developed by Applegate, Bixby, Chvátal and Cook for faster solution of large-scale traveling salesman instances. By extensive experiments, we show that both methods can drastically accelerate the solution of constrained quadratic 0/1 problems. © 2008 Springer-Verlag Berlin Heidelberg.
APA:
Buchheim, C., Liers, F., & Oswald, M. (2008). A basic toolbox for constrained quadratic 0/1 optimization. In Catherine C. McGeoch (Eds.), Experimental Algorithms. (pp. 249-262). Berlin Heidelberg: Springer.
MLA:
Buchheim, Christoph, Frauke Liers, and Marcus Oswald. "A basic toolbox for constrained quadratic 0/1 optimization." Experimental Algorithms. Ed. Catherine C. McGeoch, Berlin Heidelberg: Springer, 2008. 249-262.
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