Centro Universitario FEI: Recent submissions
Itens para a visualização no momento 1341-1360 of 2182
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Accelerating autonomous learning by using heuristic selection of actions
(2008)This paper investigates how to make improved action selection for online policy learning in robotic scenarios using reinforcement learning (RL) algorithms. Since finding control policies using any RL algorithm can be very ... -
Evaluating SVM and MLDA in the extraction of discriminant regions for mental state prediction
(2009)Pattern recognition methods have been successfully applied in several functional neuroimaging studies. These methods can be used to infer cognitive states, so-called brain decoding. Using such approaches, it is possible ... -
A new ranking method for principal components analysis and its application to face image analysis
(2010)In this work, we investigate a new ranking method for principal component analysis (PCA). Instead of sorting the principal components in decreasing order of the corresponding eigenvalues, we propose the idea of using the ... -
Analyzing the connectivity between regions of interest: An approach based on cluster Granger causality for fMRI data analysis
(2010)The identification, modeling, and analysis of interactions between nodes of neural systems in the human brain have become the aim of interest of many studies in neuroscience. The complex neural network structure and its ... -
A multivariate statistical analysis of the developing human brain in preterm infants
(2007)Preterm delivery accounts for 5% of all deliveries and its consequences contribute to significant individual, medical, and social problems. The neuroanatomical substrates of these disorders are not known, but are essential ... -
Transferring knowledge as heuristics in reinforcement learning: A case-based approach
(2015)© 2015 Elsevier B.V.Abstract The goal of this paper is to propose and analyse a transfer learning meta-algorithm that allows the implementation of distinct methods using heuristics to accelerate a Reinforcement Learning ... -
Multivariate gene expression analysis reveals functional connectivity changes between normal/tumoral prostates
(2008)Background: Prostate cancer is a leading cause of death in the male population, therefore, a comprehensive study about the genes and the molecular networks involved in the tumoral prostate process becomes necessary. In ... -
Qualitative Model of Location Relations Learned from Human Data
(2018)© 2003-2012 IEEE.Este trabalho propõe um modelo qualitativo de relações de localização e orientação espacial, no qual as categorias qualitativas são expressões espaciais. O modelo foi construído a partir de dados obtidos ... -
A qualitative spatial representation of string loops as holes
(2016)© 2016 Published by Elsevier B.V.This research note contains an extension of a previous work by Cabalar and Santos (2011) that formalised several spatial puzzles formed by strings and holes. That approach explicitly ignored ...