Itai Shapira
I'm a CS PhD student at Harvard. I am privileged to be advised by Prof. Ariel D. Procaccia.
I am a recipient of the 2025 JPMorgan Chase PhD Fellowship, and I was also supported by the Nicole A. Chen and Karina A. Chen Graduate Student Research Fellowship. I am affiliated with the NSF AI Institute for Societal Decision Making and serve on its Student Leadership Council.
Research
Notation: (α) authors listed alphabetically (r) equal contribution with randomized order among authors marked with †
AI Alignment From Social Choice Perspectives
July 2026
How RLHF Amplifies Sycophancy
Robust AI Evaluation through Maximal Lotteries
Incentives in Federated Learning with Heterogeneous Agents
Generative Social Choice
Extended version of the paper published at EC 2024
Pairwise Calibrated Rewards for Pluralistic Alignment
SOAP: Improving and Stabilizing Shampoo using Adam
A New Perspective on Shampoo’s Preconditioner
Spotlight Top 2.1% of submissions
Axioms for AI Alignment from Human Feedback
Spotlight Top 2.1% of submissions