1. Artificial Intelligence and Intelligent Systems Research Group, School of Innovation, Design and Engineering, Mälardalen University, Högskoleplan 1, 722 20 Västerås, Sweden
2. Department of Electrical and Computer Engineering, Pak-Austria Fachhochschule Institute of Applied Sciences and Technology, Haripur 22621, Pakistan
3. Intelligent Systems Research Centre, University of Ulster, Londonderry BT48 7JL, UK
4. Air Transport and Operations, Faculty of Aerospace Engineering, Delft University of Technology (TU Delft), 2628 CD Delft, The Netherlands