CV

This page summarizes my background and research. For the full document, use the PDF version of my CV:

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Research interests

Pluralistic AI alignment, algorithmic social choice, optimization, and multi-agent systems.

Current affiliation

PhD Candidate in Computer Science at Harvard University, advised by Ariel D. Procaccia.

Publications

• J2 AI Alignment From Social Choice Perspectives 2026
  (α) Daniel Halpern, Evi Micha, Ariel D. Procaccia, Benjamin Schiffer, Itai Shapira, Shirley Zhang
  SIGecom Exchanges (under review)
  PDF
• C10 How RLHF Amplifies Sycophancy 2026
  Itai Shapira, Gerdus Benadè, Ariel D. Procaccia
  ICML
  ICML 2026
• C9 Robust AI Evaluation through Maximal Lotteries 2026
  (r) Hadi Khalaf, Serena Lutong Wang^†, Daniel Halpern^†, Itai Shapira^†, Flavio P. Calmon, Ariel D. Procaccia
  ICML
  ICML 2026
• C8 Incentives in Federated Learning with Heterogeneous Agents 2026
  (α) Ariel D. Procaccia, Han Shao, Itai Shapira
  ICLR
  ICLR 2026
• J1 Generative Social Choice 2026
  (α) Sara Fish, Paul Gölz, David C. Parkes, Ariel D. Procaccia, Gili Rusak, Itai Shapira, Manuel Wüthrich
  Journal of the ACM • Extended version of the paper published at EC 2024
  arXiv
• C7 Pairwise Calibrated Rewards for Pluralistic Alignment 2025
  (α) Daniel Halpern, Evi Micha, Ariel D. Procaccia, Itai Shapira
  NeurIPS
  NeurIPS 2025
• C6 SOAP: Improving and Stabilizing Shampoo using Adam 2025
  Nikhil Vyas^†, Depen Morwani^†, Rosie Zhao, Itai Shapira, David Brandfonbrener, Lucas Janson, Sham Kakade
  ICLR
  ICLR 2025
• C5 A New Perspective on Shampoo’s Preconditioner 2025
  (r) Depen Morwani^†, Itai Shapira^†, Nikhil Vyas^†, Eran Malach, Sham M. Kakade, Lucas Janson
  ICLR
  ICLR 2025
• C4 Axioms for AI Alignment from Human Feedback 2024
  (α) Luise Ge, Daniel Halpern, Evi Micha, Ariel D. Procaccia, Itai Shapira, Yevgeniy Vorobeychik, Junlin Wu
  NeurIPS
  NeurIPS 2024
• C3 Learning Social Welfare Functions 2024
  (r) Kanad Shrikar Pardeshi^†, Itai Shapira^†, Ariel D. Procaccia, Aarti Singh
  NeurIPS
  NeurIPS 2024
• C2 Bias Detection Via Signaling 2024
  (α) Yiling Chen, Tao Lin, Ariel D. Procaccia, Aaditya Ramdas, Itai Shapira
  NeurIPS
  NeurIPS 2024
• C1 Optimal Engagement-Diversity Tradeoffs in Social Media 2024
  (α) Fabian Baumann, Daniel Halpern, Ariel D. Procaccia, Iyad Rahwan, Itai Shapira, Manuel Wüthrich
  The ACM Web Conference (WWW)
  WWW'24

Selected online profiles

• Google Scholar
• LinkedIn
• GitHub
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