In the upcoming high transmission rate system, based on code division multiple access, standard multi-user detection methods are restricted because of performance and implementation complexity issues. To end up with this issue, self-organized neural networks are proposed. An optimal multi-user detector can be implemented, by using Growing Grid network.

• J. Carmo and O. Pacheco, “Deontic and action logics for organized collective agency, modeled through institutionalized agents and roles”, Fundamenta Informaticae, Special Issue on Deontic Logic in Computer Science, Vol 48, Numbers 2,3, pp. 129-163, 2001 • O. Pacheco and J. Carmo, “A Role Based Model for the Normative Specification of Organized Collective Agency and Agents Interaction”, Journa...

This report presents a study of integrating particle swarm algorithm, social knowledge adaptation and multi-agent approaches for modeling the social learning of self-organized groups and their collective searching behavior in an adaptive environment. The objective of this research is to apply the particle swarm metaphor as a model of social learning for a dynamic environment. The research provi...

In the barrel cortex, several features of single-whisker stimuli are organized in functional maps. The barrel cortex also encodes spatio-temporal correlation patterns of multi-whisker inputs, but so far the cortical mapping of neurons tuned to such input statistics is unknown. Here we report that layer 2/3 of the rat barrel cortex contains an additional functional map based on neuronal tuning t...

This paper investigates hierarchy extraction from results of multi-label classification (MC). MC deals with instances labeled by multiple classes rather than just one, and the classes are often hierarchically organized. Usually multi-label classifiers rely on a predefined class hierarchy. A much less investigated approach is to suppose that the hierarchy is unknown and to infer it automatically...

transnational organized crime is one of the most problematic matters for international community in 21st century. these crimes are committed by organized criminal groups consisting of three or more persons, a unique leadership and strict discipline with cruel sanctions in order to obtain, directly or indirectly, a financial or other material benefit. commission of the crimes nationally and inte...