1. Department of Computer Science, University of Exeter, Exeter, England, U.K.
2. Center of Collective Learning, ANITI, University of Toulouse, Occitania, France
3. Department of Computer Engineering, University of Pernambuco, Recife, Brazil
4. Graduate Program in Industrial Engineering, Federal University of Technology-Paraná, Ponta Grossa, Brazil
5. College of Applied Science and Technology, Illinois State University, Normal, IL, USA