A Survey of Mixed Integer Nonlinear Optimization

Sven Leyffer, Argonne National Laboratory

Many optimization problems involve variables which are restricted to take binary, integral or discrete values. Applications include chemical engineering such as process synthesis, batch plant design, cyclic scheduling or the design of distillation columns. More recently, applications have arisen in the nuclear industry, to optimize core reload operations and in topology optimization, where binary variables model the presence or absence of material in each finite element. This talk surveys the recent developments in the design of solvers for large Mixed Integer Nonlinear Programming (MINLP) problems. It will start by reviewing classical methods such as branch-and-bound, Benders Decomposition and Outer Approximation. Next, new hybrid approaches, combining these classical methods are discussed and likely future challenge and developments are pointed out.


Chemnitz Workshop

Last modified: Mon Sep 23 18:53:51 CEST 2004