1. Vitalent Consulting, Gothenburg, Sweden
2. School of Automation Science and Electrical Engineering, Beihang University, Beijing, China
3. Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden
4. College of Science and Engineering, James Cook University, Smithfield, QLD, Australia
5. School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, VIC, Australia