Joston Gary is a PhD Candidate in Marketing and Strategy at Department of Economics, Management, Industrial Engineering and Tourism, University of Aveiro, and School of Economics, Management and Political Science, University of Minho, Portugal. He is also a Visiting PhD Student and Affiliated Researcher at Department of Management and Engineering, Linkoping University, Sweden. In addition, he is currently pursuing an MSc in Computer Science with a specialization in Human-Computer Interaction at College of Computing, Georgia Institute of Technology, USA. He holds a MBA in Accounting and Finance from Faculty of Business, City University of Macau, Macau S.A.R.; a BSc in Business Administration (Marketing Track) from School of Business and Management, Thomas Edison State University, USA; a BSc in Computer Science from Department of Computer Science, University of the People, USA; a BSc in Psychology from Division of Psychology and Cognitive Neuroscience, JSS Academy of Higher Education and Research, India; and a Bachelor of Engineering in Civil Engineering from School of Smart Cities and Construction, Chongqing Institute of Engineering, China. His primary research area is computational social science. His research combines machine learning, statistical modeling, and computational methods to study human behavior and decision-making using large-scale and digitally generated data. His work spans several application domains, including consumer behavior, digital technology, tourism, health sciences, sustainability, and environmental research, with a common focus on understanding social and behavioral processes through computational methods.