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math.OC2021
Multi-objective Matroid Optimization with Ordinal Weights
Kathrin Klamroth, Michael Stiglmayr, Julia Sudhoff
Bi-objective optimization problems on matroids are in general intractable and their corresponding decision problems are in general NP-hard. However, if one of the objective functio…
math.OC2021
Event-based MILP models for ride pooling applications
Daniela Gaul, Kathrin Klamroth, Michael Stiglmayr
Ridepooling services require efficient optimization algorithms to simultaneously plan routes and pool users in shared rides. We consider a static dial-a-ride problem (DARP) where a…