Jorge Pinho de Sousa

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Although single objective metaheuristics are widely spread and applied in many combinatorial optimisation problems, only very recently have multiobjective metaheuristics (MOMH) been designed and used in practice. They aim at obtaining good approximations of the set of nondominated solutions of a problem, in an ecient way. In this work, we have applied(More)
A virtual enterprise (VE) is a temporary organization that pools member enterprises core competencies and exploits fast changing market opportunities Partner selection can be viewed as a multi-criteria decision making problem that involves assessing trade-offs between conflicting tangible and intangible criteria, and stating preferences based on incomplete(More)
In this paper we address two major challenges presented by stochastic discrete optimisation problems: the multiobjective nature of the problems, once risk aversion is incorporated, and the frequent difficulties in computing exactly, or even approximately, the objective function. The latter has often been handled with methods involving sample average(More)
Partner selection in virtual enterprises (VE) can be viewed as a multi-criteria decision making problem that involves assessing trade-offs between conflicting tangible and intangible criteria. In general, this is a very complex problem due to the dynamic topology of the network, the large number of alternatives and the different types of criteria. In this(More)
This paper describes an order planning system for dynamic supply-chains, addressing the requirements of a make-to-order business environment. A distributed and decentralised information system, based on an architecture of agents and extensively using the internet, was designed and implemented to provide new and more powerful decision support. The system(More)