The results of the ship ballast water treatment systems neutralization need to be verified in a transparent and trustful way before the ship enters a port. Some researches and results, explained in this article, confirm a need for a good verification. If there is no good methodology agreed, then it would not be accepted the solution that the BWMC (Ballast Water Management Convention) 2004 did p...

In recent years, the e-government revolution has induced transformational economic and social shifts around the world. The main objective of this paper is to analyze and rank the e-government agricultural services provided by the Greek government in Citizens Services Center web portal. For this reason an analysis of all the official e-government agricultural and environmental services was made....

This paper proposes a modified non-dominated sorting genetic algorithm (NSGA-II) for a bi-objective location-allocation model. The purpose is to define the best places and capacity of the distribution centers as well as to allocate consumers, in such a way that uncertain consumers demands are satisfied. The objectives of the mixed-integer non-linear programming (MINLP) model are to (1) minimize...

Multicriteria decision aid consists in helping decision-makers to compare (rank, choose, sort, etc.) different alternatives which are evaluated on conflicting criteria. A well-known family of methods is the PROMETHEE family. It has been highlighted that these may suffer from rank reversal occurrences. However, Mareschal et al. and later Verly De Smet have pointed out could only occur between ha...

A novel framework is described for mining fuzzy Association Rules (fuzzy ARs) relating the properties of composite attributes, i.e. attributes or items that each feature a number of values derived from a common schema. To apply fuzzy Association Rule Mining (ARM) we partition the property values into fuzzy property sets. This paper describes: (i) the process of deriving the fuzzy sets (Composit...