Coalition formation is an active and essential component for multi-agent systems (MAS) in
task-oriented domains in which tasks can be too complicated to be accomplished by a single …

We propose a revision of the classical column generation algorithm for solving Dantzig–
Wolfe decompositions of mixed integer programs. It is meant to fully exploit the availability of …

Maritime transport facilitates international trade activities and contributes to world׳ s
economic growth and prosperity. Still maritime transport faces several operations challenges …

The e-marketplace in Business To Business applications allows enterprises to make
economic transactions in a virtual marketplace. Often Small and Medium Enterprises (SMEs) …

In this paper, we present a linear programming (LP) model of the set partitioning problem
(SPP). The number of variables and the number of constraints of the proposed model are …

In this Thesis, we address column generation based methods for linear and integer
programming and apply them to three multicommodity flow problems. For (mixed) integer …

Combinational optimization (CO) is a topic in applied mathematics, decision science and
computer science that consists of finding the best solution from a non-exhaustive search. CO …

Software agents can be useful in forming buyers' groups since humans have considerable
difficulties in finding Pareto-optimal deals (no buyer can be better without another being …

In multi-agent systems, agents are inclined to form coalitions to improve individual
performance and perform tasks more efficiently. However, the most existing researches …

In this paper we face a very fundamental problem in Operations Research: to find good dual
bounds to generic mixed integer mathematical programs (MIPs) as quickly as possible. In …