TY - GEN A1 - Johannsmann, Leonie M. A1 - Craparo, Emily M. A1 - Dieken, Thor L. A1 - Fügenschuh, Armin A1 - Seitner, Björn O. T1 - Stochastic mixed-integer programming for a spare parts inventory management problem T2 - Computers & Operations Research Y1 - 2022 U6 - https://doi.org/10.1016/j.cor.2021.105568 SN - 1873-765X SN - 0305-0548 VL - 138 SP - 1 EP - 10 ER - TY - GEN A1 - Ghosh, Syamali A1 - Roy, Sankar Kumar A1 - Fügenschuh, Armin T1 - The Multi-Objective Solid Transportation Problem with Preservation Technology Using Pythagorean Fuzzy Sets T2 - International Journal of Fuzzy Systems Y1 - 2022 U6 - https://doi.org/10.1007/s40815-021-01224-5 SN - 2199-3211 SN - 1562-2479 VL - 24 IS - 6 SP - 2687 EP - 2704 ER - TY - GEN A1 - Stieber, Anke A1 - Fügenschuh, Armin T1 - Dealing with Time in the Multiple Traveling Salesmen Problem with Moving Targets T2 - Central European Journal of Operations Research N2 - The multiple traveling salespersons problem with moving targets is a generalization of the classical traveling salespersons problem, where the targets (nodes or objects) are moving over time. Additionally, for each target a visibility time window is given. The task is to find routes for several salespersons so that each target is reached exactly once within its visibility time window and the sum of all traveled distances of all salespersons is minimal. We present different modeling formulations for this TSP variant. The time requirements are modeled differently in each approach. Our goal is to examine what formulation is most suitable in terms of runtime to solve the multiple traveling salespersons problem with moving targets with exact methods. Computational experiments are carried out on randomly generated test instances to compare the different modeling approaches. The results for large-scale instances show, that the best way to model time requirements is to directly insert them into a formulation with discrete time steps. Y1 - 2022 U6 - https://doi.org/10.1007/s10100-020-00712-7 SN - 1613-9178 SN - 1435-246X VL - 30 IS - 3 SP - 991 EP - 1017 ER - TY - CHAP A1 - Fügenschuh, Armin A1 - Marahrens, Sönke A1 - Johannsmann, Leonie M. A1 - Matuszewski, Sandra A1 - Müllenstedt, Daniel A1 - Schmidt, Johannes ED - Turnitsa, Charles ED - Blais, Curtis Blais ED - Tolk, Andreas T1 - Using Computer-Generated Virtual Realities, Operations Research, and Board Games for Conflict Simulations T2 - Simulation and Wargaming Y1 - 2022 SN - 978-1-119-60478-5 SN - 978-1-119-60479-2 U6 - https://doi.org/10.1002/9781119604815 SP - 273 EP - 287 PB - John Wiley & Sons, Inc. CY - Hoboken, NJ ER -