Global Reward
Global reward optimization in multi-agent systems focuses on designing algorithms that enable agents to collectively maximize a shared objective, rather than individual rewards. Current research emphasizes efficient credit assignment methods, particularly in scenarios with delayed or non-separable rewards, employing techniques like Shapley values and attention mechanisms within frameworks such as centralized training with decentralized execution (CTDE). These advancements are crucial for tackling complex problems in areas like cooperative robotics, network optimization, and resource allocation, where individual agent actions impact a shared global outcome. The development of scalable and robust algorithms for global reward maximization is driving progress in both theoretical understanding and practical applications of multi-agent reinforcement learning.