discrete event simulation – Optimization Online

The Exclusion-Inclusion Gap for Evaluating Finite Pareto Approximations in Multiobjective Stochastic Optimization

Published: 2025/10/08, Updated: 2026/10/14

Global Optimization, Multi-Criteria Optimization, Optimization of Simulated Systems discrete event simulation, multicriteria optimization, noisy black box optimization, performance indicator, stochastic systems

We introduce the exclusion–inclusion gap for evaluating finite Pareto approximations constructed from stochastic objective estimates. The gap measures the maximum of two objective-space errors associated with excluding Pareto points from the returned set’s true upper image and including dominated points in the returned set’s true lower image. The terms in its approximation–estimation error decomposition admit … Read more

A simulation-based optimization approach for the calibration of a discrete event simulation model of an emergency department

Published: 2021/01/31, Updated: 2021/02/02

Applications - OR and Management Sciences, Integer Programming, Optimization of Simulated Systems derivative-free optimization, discrete event simulation, emergency department, model calibration, simulation-based optimization

Accurate modeling of the patient flow within an Emergency Department (ED) is required by all studies dealing with the increasing and well-known problem of overcrowding. Since Discrete Event Simulation (DES) models are often adopted with the aim of assessing solutions for reducing the impact of this worldwide phenomenon, an accurate estimation of the service time … Read more