The purpose of this research is to understand how uncertainty affects structured integer programs. This talk will focus on two such problem: The service network design problem (multi-commodity, time-dependent, network design with conservation-of-flow constraints on the design variables), and the "classical" single commodity (static) network design problem. We study the relationship between the stochastic and deterministic solutions in order to understand what constitutes robustness in network design. The goal is not to show (once again) how bad the deterministic solutions are, but to understand specifically what is lost when formulating deterministic models when the actual situation is affected by uncertainty.
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