Published on in Vol 8 , No 12 (2020) :December
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/18953, first published
.

1 Department of Computer Science and Engineering, Carlos III University of Madrid, Madrid, Spain
2 Department of Computer Science and Engineering, Universidad Católica de Santa Maria, Arequipa, Peru
*all authors contributed equally