In this research we consider the problemof scheduling rounds of a non-professional table-tennisleague. We formalize the problem in terms of atimetabling optimization problem. Then we solve thishighly constrained problem with a permutation based GeneticAlgorithm for which feasibility preserving...

(...) Das Traveling-Salesman-Problem (TSP; synonym Handlungsreisenden- oder Rundreiseproblem) ist eine der populärsten kombinatorischen Problemstellungen der letzten vier Jahrzehnte. In seiner illustrativsten Formulierung unterstellt es einen Handlungsreisenden, welcher durch eine geeignete...

In many practical cases one has to choose an arrangement of different objects so that they are compatible. Whenever the compatibility of the objects can be checked by a pair-wise comparison the problem can be moddeled using the graph-theoretic notion of cliques.

This paper introduces a special kind of multi-depot pickup and delivery problem. In contrast to the general pickup and delivery problem (GPDP, see e.g. [19,31]) all requests have to be picked up at or delivered to one central location which has the function of a hub or consolidation point. In...

In this paper we propose an ACO approach, where two colonies of ants aim to optimize total costs in a transportation network. This main objective consists of two sub goals, namely fleet size minimization and minimization of the vehicle movement costs, which are conflicting for some regions of...

In this paper we propose an ACO algorithm to optimize the total costs associated with the pickup and delivery of full truckloads under time window constraints in a hub network.(...)

Operations Research (OR) und Management Science sind Bezeichnungen für jenen, nach dem zweiten Weltkrieg entstehenden Wissenschaftszweig, der sich vor allem mit der Anwendung formaler, mathematischer Methoden auf ökonomische und andere Entscheidungsprobleme beschäftigt. Auch schon wesentlich...

Der Ursprung des OR findet sich in den Jahren kurz vor und während des 2. Weltkriegesin Großbritannien und den USA (vgl. Domschke und Drexl 2007, S. 2). Seine Aufgabebestand in dieser Zeit primär in der Planung militärischer Aufgaben (vgl. Müller-Merbach 2000, S. 688). Nach dem 2. Weltkrieg...

The role of security management in the development and operation of information systems has a long tradition of research incomputer science, information systems and management science. Integrating the economic, organizational, and technicalaspects of information systems security analysis and...

This paper proposes a new model for studying the new product development process inan artificial environment. We show how connectionist models can be used to simulatethe adaptive nature of agents’ learning exhibiting similar behavior as practically experiencedlearning curves. We study the...