Jon Lee, IBM Research

Parametric nonlinear discrete optimization I will describe recent results on optimizing f(Wx) over x in a well-described set of integer points. The motivation is multi-objective optimization, where f balances linear functions described by the rows of W. Usually we assume

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Ted Ralphs, Lehigh University

Mixed Integer Bilevel Programming A bilevel program is a generalization of a standard mathematical program in which we consider a hierarchical decision system with two independent decision makers whose interests are not necessarily aligned. We first discuss the importance and

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Stefan Vigerske, Humboldt University Berlin

Extending SCIP for MINLP We present extensions of the constraint integer programming framework SCIP for solving mixed-integer nonlinear programs. Nonlinear constraints (convex or nonconvex) are handled within an LP-based branch-and-cut algorithm by generating suitable linear relaxations and by domain propagation.

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Zong Woo Geem, Johns Hopkins University

The harmony search algorithm Harmony search is a newly-developed meta-heuristic optimization algorithm, which was inspired by music improvisation, for both discrete and continuous optimization. The harmony search algorithm has been applied to various problems such as music composition, Sudoku puzzle

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