77 citations · 236 across the 7 of their papers we have counts for
7 papers
On optimal tests for rotational symmetry against new classes of hyperspherical distributions
Eduardo García-Portugués, Davy Paindaveine, Thomas Verdebout
Motivated by the central role played by rotationally symmetric distributions in directional statistics, we consider the problem of testing rotational symmetry on the hypersphere. W…
Distance weighted discrimination of face images for gender classification
Mónica Benito, Eduardo García-Portugués, J. S. Marron +1
We illustrate the advantages of distance weighted discrimination for classification and feature extraction in a High Dimension Low Sample Size (HDLSS) situation. The HDLSS context…
Langevin diffusions on the torus: estimation and applications
Eduardo García-Portugués, Michael Sørensen, Kanti V. Mardia +1
We introduce stochastic models for continuous-time evolution of angles and develop their estimation. We focus on studying Langevin diffusions with stationary distributions equal to…
A generative angular model of protein structure evolution
Michael Golden, Eduardo García-Portugués, Michael Sørensen +3
Recently described stochastic models of protein evolution have demonstrated that the inclusion of structural information in addition to amino acid sequences leads to a more reliabl…
A test for directional-linear independence, with applications to wildfire orientation and size
Eduardo García-Portugués, Ana M. G. Barros, Rosa M. Crujeiras +2
The relation between wildfire orientation and size is analyzed by means of a nonparametric test for directional-linear independence. The test statistic is designed for assessing th…
Kernel density estimation for directional-linear data
Eduardo García-Portugués, Rosa M. Crujeiras, Wenceslao González-Manteiga
A nonparametric kernel density estimator for directional-linear data is introduced. The proposal is based on a product kernel accounting for the different nature of both (direction…
Exploring wind direction and SO2 concentration by circular-linear density estimation
Eduardo García-Portugués, Rosa M. Crujeiras, Wenceslao González-Manteiga
The study of environmental problems usually requires the description of variables with different nature and the assessment of relations between them. In this work, an algorithm for…