1. School of Intelligent Systems Science and Engineering Jinan University 519070 Zhuhai PR China
2. Instituto Politécnico de Castelo Branco Av. do Empresário 6000‐767 Castelo Branco Portugal
3. Centro ALGORITMI University of Minho Campus de Gualtar 4710‐057 Braga Portugal
4. Department of Management Science Lancaster University Management School Lancaster University LA1 4YX Lancaster UK