Xiao Hui Tai

Xiao Hui Tai is an Assistant Professor in the Department of Statistics at the University of California, Davis, within the College of Letters and Science. Her research sits at the intersection of statistics, data science, and social science, with a focus on global public health, conflict dynamics, and socioeconomic development. She leverages large-scale, granular data sources such as mobile phone records, satellite imagery, and geospatial datasets to study the impacts of violence, displacement, and environmental hazards.

Her research interests include statistical and machine learning methods for causal inference, spatiotemporal modeling, and interdisciplinary applications in public policy and development economics. She is particularly interested in how data science can inform decision-making in humanitarian and low-resource settings. Her work bridges technical rigor with real-world impact, often involving collaboration across disciplines such as political science, economics, public health, and environmental science.

The recent publications reflect a strong trend in using novel data sources to address pressing global challenges. Themes include conflict and education, air pollution and mortality, displacement due to violence, and illicit crop monitoring. Her methodological expertise spans record linkage, hierarchical clustering, natural language processing, and satellite-based environmental monitoring. These works demonstrate a consistent focus on both methodological innovation and policy-relevant applications.

• Hellman Fellow (2024–25)

Tai advises students through her research and teaching, having developed and taught courses such as STA 35A (Introductory Statistical Data Science), STA 160 (Capstone in Data Science), and STA 250 (Data Science for International Development). She has mentored student-led research, including a project on air pollution in Chile that led to a publication in Communications Earth & Environment. Her current projects involve interdisciplinary collaborations funded by the L&S Unites Initiative, including automated text analysis of lobbying influence on global health policy. She is actively engaged in the academic community, presenting her work at major conferences such as the Households in Conflict Network, WNAR/IMS, and the Australasian Development Economics Workshop.

Tai leads research that integrates data-intensive methods with social science questions, often in collaboration with labs and centers such as the UC Davis DataLab. She previously worked with the Global Policy Lab at UC Berkeley and CyLab at Carnegie Mellon University, maintaining connections to interdisciplinary research teams focused on data for development and security.