1. Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom, Thailand
2. S3RI and School of Mathematics, University of Southampton, Southampton, UK
3. Novartis Pharma AG, Basel, Switzerland
4. Department of Statistics, Chulalongkorn University, Bangkok, Thailand
5. Department of Business Information and Analytics, University of Denver, Denver, Colorado, USA