Presented by Frederick Kin Hing Phoa, Research Fellow, Institute of Statistical Science, Academia Sinica, Taipei, Taiwan

Joint work with Jing-Wen Huang, Institute of Statistics, National Tsing Hua University, Hsinchu, Taiwan

Friday, April 11, 2025, 10:00 AM, AUST 340
Coffee will be served at 9:30 in the Noether Lounge (AUST 326)
Webex Meeting Link

Abstract: In this work, we propose a systematic design construction method for cost-efficient order-of-addition (OofA) experiments, and its corresponding statistical models for analyzing experimental results. In specific, our designs take the effects of two successive treatments into consideration. Each pair of level settings from two different factors in our design matrix appears exactly once to achieve cost-efficiency. Compared to designs in recent studies of OofA experiments, our design is capable of conducting experiments of one or more factors, so practitioners can insert a placebo, or choose different doses as level settings when our design is used as their experimental plans. We show an experimental analysis based on our design results in better performance than those based on the minimal-point design and Bayesian D-optimal design with the pairwise-order modeling in terms of identifying the optimal order.
Speaker Bio:
Frederick Kin Hing Phoa is a research fellow of Institute of Statistical Science at Academia Sinica (ISSAS) in Taiwan. He has been with ISSAS since 2009, after his graduation from University of California at Los Angeles in USA. He is also appointed as adjunct professors in National Taiwan University, National Central University and National Chiao Tung University in Taiwan. His research areas of interest include design and analysis of experiments; methods of variable selection; network data analysis; nature-inspired metaheuristics optimization; scientometrics; hierarchical time series analysis; data visualization; and environmental statistics; and many others. Dr. Phoa has published scientific articles in statistical research journals including The Annals of Statistics, Statistica Sinica, Technometrics, and in interdisciplinary and computing research journals including Scientific Reports, Physical Review B, Physica A, Network Science, Chemometrics, Swarm and Evolutionary Optimization. Dr. Phoa is the recipient of Career Development Award (Academia Sinica) (2014), Ta-You Wu Award (MOST Young Researcher Award) (2015), Best Paper Award at World Congress of Engineering (2015), Outstanding Research Award (MOST) (2018), Outstanding Scholar Award (Foundation for the Advancement of Outstanding Scholarship) (2020), and Investigator Award (Academia Sinica) (2022). Dr. Phoa served as principal investigators in several international joint projects with UK, Japan, Germany, Singapore, China, etc. In addition to rich experience in organizing conference sessions, he was also the conference organizers of four CEDAs (2014, 2016, 2018, 2023), three ISM-ISI-ISSAS Joint Conferences (2022, 2023, 2024), and two Research Metrics Workshops (2023, 2025).