1. Faculty of Informatics and Management, Center for Basic and Applied Research, University of Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
2. Malaysia Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia Kuala Lumpur, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia
3. School of Computing, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Malaysia