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Zipeng Dai

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

Timing is Everything: Learning to Act Selectively with Costly Actions and Budgetary Constraints

ICLR 2023poster

Many real-world settings involve costs for performing actions; transaction costs in financial systems and fuel costs being common examples. In these settings, performing actions at each time step quickly accumulates costs leading to vastly suboptimal outcomes. Additionally, repeatedly acting produce…

Cited by 7SourcePDFScholar
2022

Socially-Attentive Policy Optimization in Multi-Agent Self-Driving System

CoRL 2022poster

As increasing numbers of autonomous vehicles (AVs) are being deployed, it is important to construct a multi-agent self-driving (MASD) system for navigating traffic flows of AVs. In an MASD system, AVs not only navigate themselves to pursue their own goals, but also interact with each other to preven…

Cited by 12SourceScholar