Combinatorial optimization 1 Fitness landscape 1 Fitness landscapes 1 Graphic methods 1 Heuristic algorithms 1 Landscape properties 1 Large-scales 1 Learning algorithms 1 Metaheuristic 1 Metaheuristics 1 The multidimensional assignment problem 1 The multidimensional assignment problem (MAP) Variable neighborhood search 1 Variable neighborhood search (VNS) 1 Very large-scale neighborhood search 1 Very large-scale neighborhood search (VLNS) 1