1. Limoges University, XLIM, UMR CNRS 7252, 123 Av. A. Thomas, Limoges, France
2. Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, ul. Kasprzaka 44/52, Poland
3. UR 20218 NeurIT, Faculties of Medicine and Pharmacy, Université de Limoges, Limoges, France
4. LABCiS UR 22722, Limoges University, Limoges, France
5. Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Sapienza University of Rome, Via Eudossiana, Rome, Italy
6. Department of Information Engineering (DII), University of Brescia, via Branze 38, Brescia, Italy
7. University of Santiago de Compostela Praza do Obradoiro S/N, Santiago de Compostela, Coruña, Spain