Group Decision Support Systems usually use a multiple criteria method as an engine to obtain the group’s ranking of the alternatives. Intermediate results of this multiple criteria method are aggregated over the different group members to come to a final result. Another approach consists of...

The aim of this paper is to present a branch and bound algorithm, which allows the construction of a consensus ranking out of a set of complete rankings over all alternatives. Each ranking of this set corresponds to the judgement of a decision maker with respect to the given list of...

The basic deterministic stationary inventory problem, in which backorders are allowed, is analyzed. Instead of considering the backorder cost to be a cost per unit and per time, we also suppose the presence of a fixed backorder cost per unit. The latter generates a supplementary dependence of...

This paper proposes a variant of the well-known capacitated vehicle routing problem that models the routing of vehicles in the cash-in-transit industry by introducing a risk constraint. In the Risk-constrained Cash-in-Transit Vehicle Routing Problem (RCTVRP), the risk of being robbed, which is...

In this paper we defi?ne a new problem, the aim of which is to fi?nd a set of k dissimilar alternative solutions for a vehicle routing problem (VRP) on a single instance. ?This problem has several practical applications in the cash-in-transit sector and in the transportation of hazardous...

This paper proposes a variant of the well-known capacitated vehicle routing problem that models the problem of routing vehicles in the cash-in-transit industry by introducing a risk constraint. In this problem, which is called the risk-constrained cash-in-transit vehicle routing problem...

Existing literature on routing of school buses has focused mainly on building intricate models that attempt to capture as many real-life constraints and objectives as possible. In contrast, the focus of this paper is on understanding the joint problem of bus route generation and bus stop...