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Feifei Tong

3 accepted papers

2023

Learning to Shape Rewards Using a Game of Two Partners

AAAI 2023technical

Reward shaping (RS) is a powerful method in reinforcement learning (RL) for overcoming the problem of sparse or uninformative rewards. However, RS typically relies on manually engineered shaping-reward functions whose construc- tion is time-consuming and error-prone. It also requires domain knowledg…

Cited by 8SourcePDFScholar
2023

MANSA: Learning Fast and Slow in Multi-Agent Systems

ICML 2023poster

In multi-agent reinforcement learning (MARL), independent learning (IL) often shows remarkable performance and easily scales with the number of agents. Yet, using IL can be inefficient and runs the risk of failing to successfully train, particularly in scenarios that require agents to coordinate the…

Cited by 7SourcePDFScholar
2022

LIGS: Learnable Intrinsic-Reward Generation Selection for Multi-Agent Learning

ICLR 2022poster

Efficient exploration is important for reinforcement learners (RL) to achieve high rewards. In multi-agent systems, coordinated exploration and behaviour is critical for agents to jointly achieve optimal outcomes. In this paper, we introduce a new general framework for improving coordination and per…

Cited by 26SourcePDFScholar