Spatial Graph Signal Interpolation with an Application for Merging BCI Datasets with Various Dimensionalities

Autor:	Ouahidi, Yassine El, Drumetz, Lucas, Lioi, Giulia, Farrugia, Nicolas, Pasdeloup, Bastien, Gripon, Vincent
Rok vydání:	2022
Předmět:	Electrical Engineering and Systems Science - Signal Processing Computer Science - Machine Learning
Druh dokumentu:	Working Paper
Popis:	BCI Motor Imagery datasets usually are small and have different electrodes setups. When training a Deep Neural Network, one may want to capitalize on all these datasets to increase the amount of data available and hence obtain good generalization results. To this end, we introduce a spatial graph signal interpolation technique, that allows to interpolate efficiently multiple electrodes. We conduct a set of experiments with five BCI Motor Imagery datasets comparing the proposed interpolation with spherical splines interpolation. We believe that this work provides novel ideas on how to leverage graphs to interpolate electrodes and on how to homogenize multiple datasets. Comment: Submitted to the 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2023)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2211.02624 Zobrazit plný text záznamu View this record from Arxiv