1. Research Centre on Production Management and Engineering (CIGIP), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
2. SIRIUS, Department of Informatics, University of Oslo, Problemveien 11, 0313 Oslo, Norway
3. VRAIN—Valencian Research Institute for Artificial Intelligence, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain