Reference Point Based Multi-Objective Algorithms forGroup Decisions

While in the past decades research on multi-objective evolutionaryalgorithms (MOEA) has aimed at finding the wholeset of Pareto optimal solutions, current approaches focus ononly those parts of the Pareto front which satisfy the preferencesof the decision maker (DM). Therefore, they integratethe DM early on in the optimization process instead of leavinghim/her alone with the final choice of one solution amongthe whole Pareto optimal set. In this paper, we address anaspect which has been neglected so far in the research onintegrating preferences: in most real-world problems, thereis not only one DM, but a group of DMs trying to find oneconsensus decision all participants are willed to agree to.[...]