1. Visiting Professor, Dept. of Computer Science and Engineering, Carlos III Univ. of Madrid, Ave. Universidad 30, Madrid 28911, Spain.
2. Professor, Center for Urban Science and Progress and Dept. of Civil and Urban Engineering, Tandon School of Engineering, New York Univ., 370 Jay St., Brooklyn, NY 11201 (corresponding author). ORCID: .
3. Associate Professor, Dept. of Computer Science, Universidad Rey Juan Carlos, Calle Tulipán, Mótoles, Madrid 28933, Spain.
4. Associate Professor, Dept. of Computer Science and Engineering, Carlos III Univ. of Madrid, Ave. Universidad 30, Madrid 28911, Spain.