🔥 Welcome!

I am Kexin Xie, currently a fourth-year Ph.D. student in the Department of Statistics at Virginia Tech (VT), under the supervision of Professor Xinwei Deng. My research interests focus on developing data-driven approaches and tools by integrating knowledge from design of experiments, statistical learning, and machine learning/artificial intelligence (ML/AI). By bridging design and modeling perspectives, I address both theoretical challenges and practical applications, collaborating closely with domain experts to tackle real-world problems. My work spans diverse fields, including healthcare, biostatistics, economics, and engineering systems.

Kexin is on the academic job market for the 2025–2026 cycle!

Specifically, my research covers the following topics:

• Bi-level variable selection for high-dimensional data modeling.
• Experimental design for systems with treatment cardinality constraint.
• Uncertainty quantification with additive Gaussian Process.
• Health and economic modeling for infectious disease interventions.

📝 Publications

Selected Peer-Reviewed Journal Articles

• Xie, K., & Deng, X. (2025). Bi-level variable selection of conditional main effects for generalized linear models. Technometrics (accepted).

• Xie, K., Wu, Y., Deng, X., and Giacomoni, A. (2025). The Big Data Era and Electricity Load Forecasting: Key Lessons from Virginia’s Data Centers Surge. Energy (accepted).

• Lian, J., Xie, K., …, and Deng, X. (2025). A Statistical Approach to Quality Evaluation of AI Mislabel Detection Algorithm. Quality Engineering (accepted).

• Guo, Q., Xie, K., and Deng, X. (2025). Discussion on “Statistical Solutions for Interdisciplinary Problem-Solving”, Quality Engineering, 1-5.

• Xie, K., Marathe, A., Deng, X., Ruiz-Castillo, P., Imputiua, S., Elobolobo, E., … & Rist, C. (2023). Alternative approaches for creating a wealth index: the case of Mozambique. BMJ Global Health, 8(8), e012639.

• Ruiz-Castillo, P., Imputiua, S., Xie, K., Elobolobo, E., Nicolas, P., Montaña, J., … & Sacoor, C. (2023). BOHEMIA a cluster randomized trial to assess the impact of an endectocide-based one health approach to malaria in Mozambique: baseline demographics and key malaria indicators. Malaria Journal, 22(1), 172.

• Xie, K., & Hlynka, M. (2019). Forward and Reverse Parking in a Parking Lot. Applied Mathematical Sciences, 13(22), 1091-1102.

• Xie, K., Otuko, R., …, and Rist, C. (2025). Trial-based cost-effectiveness analysis of ivermectin mass drug administration for malaria control in Kwale County, Kenya. The Lancet Infectious Diseases (minor revision, revision submitted).

• Xie, K., Marathe, A., Thakur, M., … & Vullikanti. A. (2024). A health and economic evaluation of the spatial spillover effect from measles resurgence. Scientific Reports (minor revision, revision submitted).

🎖 Honors and Awards

• 06/2025 ASA Quality and Productivity Research Conference Travel Scholarship.
• 06/2025 2025 JMP-P&G Student-Early Career Travel Award.
• 08/2024 Fall Technical Conference Student Grant Awards.
• 05/2022 The Raymond H. Myers Award (top 1/18), by Virginia Tech Dept of Statistics.
• 05/2022 The Best SAIG Short Course Development in 2022, by Virginia Tech SAIG.

📖 Educations

• 08/2021 - 05/2026 (expected), Virginia Tech, Ph.D. in Statistics.
• 09/2016 - 06/2020, Dalian University of Technology, B.S. in Mathematics.

💻 Experience

• 05/2025 - 08/2025, Research Statistician & Software Developer, JMP Statistical Discovery, USA.
• 05/2024 - 08/2024, Ph.D. Summer Intern in Advanced Analytics, PJM Interconnection, USA.
• 05/2023 - 08/2023, Summer Research Intern, Biocomplexity Institute, University of Virginia, USA
• 08/2022 - 02/2025 (now), Research Assistant, Virginia Tech, USA.
• 08/2021 - 05/2022, Teaching Assistant, Virginia Tech, USA.