Publications & Talks

Peer-reviewed publications

Onyambu, S. and Xu, H. (2025). Tuning differential evolution algorithm for constructing uniform projection designs. Journal of Statistical Planning and Inference. PDF · Publisher page

Dahal, L., Burton, H., and Onyambu, S. (2022). Quantifying the effect of probability model misspecification in seismic collapse risk assessment. Structural Safety, 96, 102185. DOI

Under review

Onyambu, S., Toledo, J., Ying, D., and Xu, H. (2026). KARGO: a kriging-based adaptive-region global optimization method with a data-driven quantile region of interest and sufficient-decrease discipline.

Onyambu, S. and Xu, H. (2026). Evaluating space-filling designs for prediction and sequential optimization.

Invited talks

When	Talk	Venue
May 2026	Uniform Projection Designs for AI/ML Hyperparameter Optimization and Explainability, DAE 2026	Rutgers University, NJ
Aug 2025	Generation of Uniform Projection Designs via Differential Evolution, EcoSta 2025	Waseda University, Tokyo, Japan
Aug 2025	Kriging-based Adaptive Region Global Optimization Algorithm, 11th Annual Loma Linda Workshop	Loma Linda University, CA
May 2023	A Trust Region Novel Optimization Algorithm, ICODOE	University of Memphis, Tennessee

Dissertation

Studies in Hyperparameter Tuning, Design Selection and Optimization. PhD dissertation, Department of Statistics & Data Science, UCLA, 2024.