In this work, we study reverse complementary genomic word pairs in the human DNA, by comparing both the distance distribution and the frequency of a word to those of its reverse complement. Several measures of dissimilarity between distance distributions are considered, and it is found that the peak dissimilarity works best in this setting. We report the existence of reverse complementary word pairs with very d...
In this work we explore the dissimilarity between symmetric word pairs, by comparing the inter-word distance distribution of a word to that of its reversed complement. We propose a new measure of dissimilarity between such distributions. Since symmetric pairs with different patterns could point to evolutionary features, we search for the pairs with the most dissimilar behaviour. We focus our study on the comple...
Neste estudo instrumental é apresentado o primeiro estudo de validação da versão portuguesa do Inventário de Personalidade de Freiburg-Revisto (FPI-R) junto de uma amostra de 1099 estudantes universitários. O FPI-R é composto por 138 itens de resposta dicotómica («verdadeiro» vs. «falso»), distribuídos por 12 escalas, 10 escalas standard (satisfação com a vida, orientação social, orientação para o desempenho, i...
This article describes the software architecture of a CAMBADA autonomous agent, focusing on the information integration mechanisms. The system requirements and the developed solutions for data structures and information fusion are also discussed. Additionnally, some error detection and correction mechanisms used in the CAMBADA robots are presented.; Este artigo descreve a arquitectura de software de um age...
O presente estudo apresenta os dados preliminares de um projecto que procura avaliar a relação entre a organização da vinculação, avaliada através do Adult Attachment Interview (AAI; George, Kaplan & Main, 1984) e a regulação autonómica, avaliada através do registo da condutância da pele e da frequência cardíaca, numa amostra de quatro pacientes diagnosticados com perturbações do comportamento alimentares segun...
This paper addresses the problem of automatic extraction of lips format parameters for Portuguese sounds. For that purpose, a system for image acquisition and analysis was developed. The system, based in genetic algorithms and more traditional techniques, calculates several relevant parameters for the lips, using the segmented mouth region.; Este artigo aborda o problema da extracção automática da forma do...
The study of some problems in image analysis needs the gathering of different information for the test and training of the systems. Among this problems we can enunciate, for instance, contour detection or, in a general mode, the automatic recognition of forms such as human faces or characters. Is precisely in this area of information’s gathering, for training and test of systems, where the developed sofware is ...
In this paper, we describe an object oriented representation that is useful for the programmable implementation of artificial neural networks. This representation is basically composed of severa1 base objects which achieve, every one of them, a different leve1 of representation. The main idea is based on a bottom-uprepresentation, where we implement objects that get moreand more global, containing other objects...