Postdoctoral Researcher
Department of Electrical Engineering and Computer Sciences
UC Berkeley
I am a postdoctoral researcher at UC Berkeley, hosted by Michael I. Jordan. Previously, I was a PhD student at ETH Zurich in Florian Dörfler's research group. My current research lies at the intersection of optimization, statistics, and computation, addressing the challenges of optimal decision-making under uncertainty. This includes complex forms of uncertainty such as distribution shifts, rare events (black swans), and graph-structured correlations. My theoretical work generally draws inspiration from fundamental engineering challenges in machine learning, power systems, energy markets, and transportation, where uncertainty plays a key role in decision-making and system resilience. My PhD work mainly focused on developing the foundations of distributionally robust optimization, with applications in high-dimensional estimation, automatic control, and energy markets. Earlier in my PhD, I worked on the stability and robustness of nonlinear systems, with applications to renewable-integrated power systems.
Stochastic and Robust Optimization, Asymptotic and High-Dimensional Statistics, Uncertainty Quantification, Optimal Transport, Control Theory
[1] “Stopping Rules for Stochastic Gradient Descent via Anytime-Valid Confidence Sequences”. Under Review in Mathematics of Operations Research. ArXiv version: arxiv:2512.13123 (2026). With Michael I. Jordan.
[2] “Wasserstein Distributionally Robust Estimation in High Dimensions: Performance Analysis and Optimal Hyperparameter Tuning”. Accepted in Mathematical Programming. ArXiv version: arxiv:2206.13269 (2025). With S. Shafiee, F. Dörfler.
[3] “Nash Equilibria, Regularization and Computation in Optimal Transport-Based Distributionally Robust Optimization”. Accepted in Operations Research. ArXiv version: arXiv:2303.03900 (2025). With S. Shafiee, F. Dörfler, D. Kuhn.
[4] “Stochastic Optimization with Optimal Importance Sampling”. Under Review in Mathematics of Operations Research. ArXiv version: arxiv:2504.03560. With B. Van Parys, H. Lam, M.I. Jordan.
[5] “Revisiting mean estimation over ℓp balls: Is the MLE optimal?”. Major Revision in The Annals of Statistics. ArXiv version: arxiv:2506.10354 (2025). With M.I. Jordan, R. Pathak, A. Ulichney.
Contact: liviu.aolaritei@berkeley.edu