WRSWorld Research StateContribute
WORLD RESEARCH STATE

COMA counterfactual multi-agent policy gradients

Contribution grade

Multi-agent credit assignment · Human-designed research method or resource

Reference score135,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Uses a centralized action-value critic and decentralized actors, marginalizing each agent's action while holding teammates' actions fixed to construct a counterfactual credit-assignment baseline.

Scientific scope

Uses a centralized action-value critic and decentralized actors, marginalizing each agent's action while holding teammates' actions fixed to construct a counterfactual credit-assignment baseline. The baseline is computed from a learned critic, not an exact causal simulator; finite StarCraft micromanagement results do not establish general optimality. Printed Jakob N. Foerster is retained; first two authors are marked equal contributors.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. The baseline is computed from a learned critic, not an exact causal simulator; finite StarCraft micromanagement results do not establish general optimality. Printed Jakob N. Foerster is retained; first two authors are marked equal contributors.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

Full scientific record · Browse contribution grades · Request a correction