#credit-assignment2 articles

2 articles

AIBullisharXiv – CS AI · 3d ago7/10

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Hindsight Credit Assignment for Long-Horizon LLM Agents

Researchers introduced HCAPO, a new framework that uses hindsight credit assignment to improve Large Language Model agents' performance in long-horizon tasks. The system leverages LLMs as post-hoc critics to refine decision-making, achieving 7.7% and 13.8% improvements over existing methods on WebShop and ALFWorld benchmarks respectively.

AINeutralarXiv – CS AI · 3d ago4/10

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Cooperative Game-Theoretic Credit Assignment for Multi-Agent Policy Gradients via the Core

Researchers propose CORA, a new cooperative game-theoretic method for credit assignment in multi-agent reinforcement learning that uses coalition-wise advantage allocation. The approach addresses policy optimization challenges by evaluating marginal contributions of different agent coalitions and demonstrates superior performance across various benchmarks.