In a previous paper a novel Generalized Multiobjective Multitree model (GMM-model) was proposed. This model considers for the first time multitree-multicast load balancing with splitting in a multiobjective context, whose mathematical solution is a whole Pareto optimal set that can include several results than it has been possible to find in the publications surveyed. To solve the GMM-model, in...

There are several initiatives for quality control in the supply of software and related services. In general, the most known and applied are the result of initiatives on the part of the customer: well defined acquisition processes, supplier selection based on certification or maturity assessment, contract monitoring. All these initiatives are aimed either to give confidence about the supplier c...

purposes but conservationists fear it may disturb the birds. They are keen to ramp up their efforts but losing 65 per cent of this year’s chicks has been a major blow, said Ana Isabel Fagundes of Portugal’s national ornithological society, SPEA. Conservationists have reinforced the nests that contain surviving birds to help protect them from the anticipated increased soil erosion as a result of...

The problem of power system optimization has become a deciding factor in current power system engineering practice with emphasis on cost and emission reduction. The economic and emission dispatch problem has been addressed in this paper using two efficient optimization methods, Artificial Bee Colony (ABC) and Particle Swarm Optimization (PSO). A hybrid produced from these two algorithms is test...

Whether environmental effects during juvenile development can alter the ontogeny of adult mating behaviour remains largely unexplored. We evaluated the effect of diet on the early expression of conspecific recognition in spadefoot toads, Spea bombifrons. We found that juvenile toads display phonotaxis behaviour six weeks post-metamorphosis. However, preference for conspecifics versus heterospec...

The main objective of this paper is to propose a new hybrid algorithm for solving the Bi green vehicle routing problem (BGVRP) from BicriterionAnt metaheuristic. methodology used subdivided as follows: first, we introduce data GVRP or instances literature. Second, use first cluster route second technique using k-means algorithm, then apply BicriterionAntAPE (BicriterionAnt Adjacent Pairwise Exc...

This paper presents a new multiobjective multicast routing algorithm (MMA) based on the Strength Pareto Evolutionary Algorithm (SPEA), which simultaneously optimizes the cost of the tree, the maximum end-to-end delay, the average delay and the maximum link utilization. In this way, a set of optimal solutions, known as Pareto set, is calculated in only one run, without a priori restrictions. Sim...

A memetic algorithm for tackling multiobjective optimization problems is presented. The algorithm employs the proven local search strategy used in the Pareto archived evolution strategy (PAES) and combines it with the use of a population and recombination. Verification of the new algorithm is carried out by testing it on a set of multiobjective 0/1 knapsack problems. On each problem instance, c...

Original SPE manuscript received for review 10 November 2008. Revised manuscript received 24 December 2008. Paper SPE 122710 peer approved 3 January 2009. Summary This paper presents an integrated method for identifying and inserting valuable flexibility into major projects. It builds upon recent work that (1) documents how errors in estimates can bias the selection of design concepts, (2) show...

This paper was selected for presentation by an SPE Program Committee following review of information contained in a proposal submitted by the author(s).