Learning in Continuous Games from Pairwise Preference Feedback
We study learning in continuous games when players receive only pairwise preference feedback, revealing which of two actions is preferred but neither payoff values nor preference magnitudes. We first show that standard external regret and coarse correlated equilibria (CCE) are not identifiable from this ordinal information: the same sequence of play can incur zero and linear regret in two ordinally equivalent games, while the distributions that remain CCE across all cardinal representations consistent with the same preferences are exactly those supported on pure Nash equilibria. Motivated by this gap, we develop a first-order ordinal theory based on normalized unilateral preference direct...
| Authors | Anas Barakat |
|---|---|
| Primary category | cs.GT |
| Published | 4 October 2026 |
| Last updated at source | 4 October 2026 |
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