Integer and Combinatorial Multiobjective Optimization
Mathematical Modelling
Operations Research in Health Care Management
Publications:
Helfrich, S., Ruzika, S., Thielen, C. Efficiently Constructing Convex Approximation Sets in Multiobjective Optimization Problems. INFORMS Journal on Computing (online first) (2024). https://doi.org/10.1287/ijoc.2023.0220
Helfrich, S., Prinz, K. & Ruzika, S. The Weighted p-Norm Weight Set Decomposition for Multiobjective Discrete Optimization Problems. Journal of Optimization Theory and Applications202, 1187–1216 (2024). https://doi.org/10.1007/s10957-024-02481-8
Helfrich, S., Herzel, A., Ruzika, S. et al. Using scalarizations for the approximation of multiobjective optimization problems: towards a general theory. Mathematical Methods of Operations Research100, 27–63 (2024). https://doi.org/10.1007/s00186-023-00823-2
Helfrich, S. Approximation and Scalarization in Multiobjective Optimization. Verlag Dr. Hut. (2023).
Helfrich, S., Perini, T., Halffmann, P. et al. Analysis of the weighted Tchebycheff weight set decomposition for multiobjective discrete optimization problems. Journal of Global Optimization86, 417–440 (2023). https://doi.org/10.1007/s10898-023-01284-x
Herzel, A., Helfrich, S., Ruzika, S. et al. Approximating biobjective minimization problems using general ordering cones. Journal of Global Optimization86, 393–415 (2023). https://doi.org/10.1007/s10898-023-01276-x
Helfrich, S., Herzel, A., Ruzika, S. et al. An approximation algorithm for a general class of multi-parametric optimization problems. Journal of Combinatorial Optimization44, 1459–1494 (2022). https://doi.org/10.1007/s10878-022-00902-w