he has been a Senior Researcher with the Department of Multimedia and Virtual Reality, VNU Information Technology Institute. His major fields include artificial intelligence, data mining, soft computing, fuzzy computing, fuzzy recommender systems, and geographic information systems. He is a member of the Vietnam Journalists Association, the International Association of Computer Science and Information Technology, the Vietnam Society for Applications of Mathematics, and the Key Laboratory of Geotechnical Engineering and Artificial Intelligence, University of Transport Technology. He is also an Associate Editor of the Journal of Intelligent & Fuzzy Systems (SCIE), IEEE Access (SCIE), Data Technologies and Applications (SCIE), the International Journal of Data Warehousing and Mining (SCIE), Neutrosophic Sets and Systems (ESCI), the Research and Development on Information and Communication Technology, Vietnam, the VNU Journal of Science: Computer Science and Communication Engineering, and Frontiers in Artificial Intelligence. He serves on the Editorial Board of Applied Soft Computing (SCIE), PLOS One (SCIE), the International Journal of Web and Grid Services (SCIE), the International Journal of Ambient Computing and Intelligence (ESCI), and the Journal of Computer Science and Cybernetics, Vietnam. He is also the Guest Editor of several Special Issues at the International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems (SCIE), and the Journal of Ambient Intelligence and Humanized Computing.