4 papers
Multiresolution Adaptive Block-Coordinate Forward-Backward for Image Reconstruction
Edgar Desainte-Maréville, Marion Foare, Paulo Gonçalves +2
Classical first-order optimization methods for imaging inverse problems scale poorly with image resolution. Wavelet based multilevel strategies can accelerate convergence under str…
A flexible block-coordinate forward-backward algorithm for non-smooth and non-convex optimization
Luis Briceño-Arias, Paulo Gonçalves, Guillaume Lauga +2
Block coordinate descent (BCD) methods are prevalent in large scale optimization problems due to the low memory and computational costs per iteration, the predisposition to paralle…
On the correlations of some microscopic random systems
P. Gonçalves, B. Salvador
We investigate the two-points correlation function for several boundary-driven interacting particle systems. Our goal is to show that the time evolution of that correlation functio…
A tool towards EEG semi-autonomous electrode placement
Pan Liu, Ariston Reis, Paulo J. S. Gonçalves
The paper proposes a novel medical device based on a 9 dof IMU to help health professionals performing more precisely the electrode placement task in EEG exams. The tool precisely…