Madelyn Gatchel defends dissertation proposal
On April 14, 2025, Madelyn Gatchel presented and successfully defended her dissertation proposal titled "Learning and Reasoning About Parameterized Families of Games."
The dissertation committee comprises:
Michael Wellman [chair]
Elizabeth…
Learning Bayesian Game Families, with Application to Mechanism Design
M Gatchel and MP Wellman
25th International Conference on Autonomous Agents and Multiagent Systems (AAMAS), May 2026. To appear.
Abstract
Learning or estimating game models from data typically entails inducing separate models for each setting,…
Conservative Equilibrium Discovery in Offline Game-Theoretic Multiagent Reinforcement Learning
A Nguyen, and MP Wellman
25th International Conference on Autonomous Agents and Multiagent Systems (AAMAS), May 2026. To appear.
Abstract
Offline learning of strategies takes data efficiency to its extreme by restricting algorithms to a…
Market Selection with Midpoint Matching: A Strategic Agent-Based Analysis
G Smithline, A Gu, and MP Wellman
6th ACM International Conference on AI in Finance (ICAIF), November 2025. To appear.
Abstract
We study midpoint matching through Nasdaq’s Midpoint Extended-Life Order (M-ELO) mechanism, which offers non-displayed…
Explicit Exploration for High-Welfare Equilibria in Game-Theoretic Multiagent Reinforcement Learning
A Nguyen, A Gu, and MP Wellman
42nd International Conference on Machine Learning (ICML), July 2025.
Abstract
Iterative extension of empirical game models through deep reinforcement learning (RL) has proved an effective approach for finding…
Empirical Game Theoretic Analysis: A Survey
MP Wellman, K Tuyls, and A Greenwald
Journal of Artificial Intelligence Research, 82:1017–1076, 2025.
Abstract
In the empirical approach to game-theoretic analysis (EGTA), the model of the game comes not from declarative representation,…
Policy Abstraction and Nash Refinement in Tree-Exploiting PSRO
C Konicki, M Chakraborty, and MP Wellman
24th International Conference on Autonomous Agents and Multiagent Systems (AAMAS), pp. 1163–1171, May 2025.
Abstract
Policy Space Response Oracles (PSRO) interleaves empirical game-theoretic analysis…
Christine Konicki defends dissertation
On 21 October 2024, Christine Konicki successfully defended her PhD dissertation titled, "Exploiting Tree Structure in Empirical Game-Theoretic Analysis for Extensive-Form Games."
Thanks to the dissertation committee members:
Michael…
Navigating in a Space of Game Views
MP Wellman, K Mayo
Autonomous Agents and Multi-Agent Systems (JAAMAS), 38(31):1–25, 2024.
Abstract
Game-theoretic modeling entails selecting the particular elements of a complex strategic situation deemed most salient for strategic analysis.…
