1. Centre of Informatics and Systems of the University of Coimbra (CISUC), Coimbra, Portugal
2. Instituto de Telecomunicações, Aveiro, Portugal
3. The University of Texas at Austin, Austin, TX, USA
4. Institute of Artificial Intelligence and Blockchain, Guangzhou University, Guangzhou, China
5. University of Coimbra, Institute for Systems Engineering and Computers (INESC), Coimbra, Portugal