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Ryann Sim

Postdoc, National University of Singapore

2 papers at NeurIPS 2025

OpenReview· Semantic Scholar· Google Scholar

Poster Session 3

1 paper
Thursday, December 4, 2025 · 11:00 AM → 2:00 PM
Exhibit Hall C,D,E
Certifying Concavity and Monotonicity in Games via Sum-of-Squares Hierarchies
#3001 · Vincent Leon, Iosif Sakos, Ryann Sim, Antonios Varvitsiotis

We introduce SOS-concave and SOS-monotone games, which are subclasses of concave/monotone games that are verifiable via semidefinite programming.

Poster Session 6

1 paper
Friday, December 5, 2025 · 4:30 PM → 7:30 PM
Exhibit Hall C,D,E
Optimism Without Regularization: Constant Regret in Zero-Sum Games
#2913 · John Lazarsfeld, Georgios Piliouras, Ryann Sim, Stratis Skoulakis