Jiuyao Lu
Email: jiuyaolu at wharton dot upenn dot edu
Hello! I'm a third-year PhD student in the Department of Statistics and Data Science at the Wharton School of the University of Pennsylvania, working with Professors Michael Kearns, Aaron Roth, and Zhimei Ren.
In summer 2026, I was an Applied Scientist Intern at Amazon, where I worked on post-training for reasoning models and calibrated prediction for decision making.
I received my B.S. in Mathematics from Tsinghua University and my M.S. in Biostatistics from Johns Hopkins University.
My first name is pronounced Joe-Yow, and I also go by Joe.
Selected Recent Papers
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Calibrated Multiaccuracy: Deterministic and Randomized Sample Complexity
Preprint
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Artificial Intelligences and Human Scientists Exhibit Complementary Strengths in Theory Building
Preprint
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MatrAIx: Simulating the World with 8.3 Billion Persona Agents
Preprint
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The Sample Complexity of Multicalibration
SODA 2027
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Optimal Lower Bounds for Online Multicalibration
FOCS 2026
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Stronger Benchmarks for Prediction as a Service with Constraints
ICML 2026
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Omniprediction with Long-Term Constraints
COLT 2026
Teaching
I have served as a teaching assistant for the following courses at the University of Pennsylvania:
- Probability (2025)
- Introductory Business Statistics (2025)
and at Johns Hopkins University:
- Advanced Data Science I–II (2023)
- Statistical Theory I–IV (2022–2023)
Academic Service
Reviewer: AISTATS 2027, AAAI 2027, ICML 2026 (Silver Reviewer), NeurIPS 2026, FOCS 2026