The issue of energy-aware traffic engineering has become prominent in telecommunications industry in the last years. This paper presents a two-criteria network optimization problem, in which routing and bandwidth allocation are determined jointly, so as to minimize the amount of energy consumed by a telecommunication infrastructure and to satisfy given demands represented by a traffic matrix. A scalarization of the criteria is proposed and the choice of model parameters is discussed in detail. The...
This paper considers large shift scheduling problems with different shift
start times and lengths, fractionable breaks and work stretch duration
restrictions. Two solution approaches are proposed to solve the problems
over a multiple-day planning horizon. The first approach is based on a
local branching strategy and the second one is based on a temporal
decomposition of the problem. Local branching is very
efficient in finding good feasible solutions when compared to a classical
branch-and-bound...
Application tools for the crop allocation problem (CAP) are required for agricultural advisors to design more efficient farming systems. Despite the extensive treatment of this issue by agronomists in the past, few methods tackle the crop allocation problem considering both the spatial and the temporal aspects of the CAP. In this paper, we precisely propose an original formulation addressing the crop allocation planning problem while taking farmers’ management choices into account. These choices...