no code implementations • 7 Mar 2024 • Tiejin Chen, Longchao Da, Huixue Zhou, Pingzhi Li, Kaixiong Zhou, Tianlong Chen, Hua Wei
The privacy concerns associated with the use of Large Language Models (LLMs) have grown recently with the development of LLMs such as ChatGPT.
no code implementations • 9 Feb 2024 • Longchao Da, Chen Chu, Weinan Zhang, Hua Wei
Addressing these limitations, we introduce CityFlowER, an advancement over the existing CityFlow simulator, designed for efficient and realistic city-wide traffic simulation.
1 code implementation • 30 Dec 2023 • Longchao Da, Kuanru Liou, Tiejin Chen, Xuesong Zhou, Xiangyong Luo, Yezhou Yang, Hua Wei
Transportation has greatly benefited the cities' development in the modern civilization process.
no code implementations • 17 Dec 2023 • Longchao Da, Porter Jenkins, Trevor Schwantes, Jeffrey Dotson, Hua Wei
In this paper, we present Probabilistic Offline Policy Ranking (POPR), a framework to address OPR problems by leveraging expert data to characterize the probability of a candidate policy behaving like experts, and approximating its entire performance posterior distribution to help with ranking.
1 code implementation • 28 Aug 2023 • Longchao Da, Minquan Gao, Hao Mei, Hua Wei
In this work, we leverage LLMs to understand and profile the system dynamics by a prompt-based grounded action transformation.
1 code implementation • 23 Jul 2023 • Longchao Da, Hao Mei, Romir Sharma, Hua Wei
Traffic signal control (TSC) is a complex and important task that affects the daily lives of millions of people.
2 code implementations • 19 Nov 2022 • Hao Mei, Xiaoliang Lei, Longchao Da, Bin Shi, Hua Wei
This paper introduces a library for cross-simulator comparison of reinforcement learning models in traffic signal control tasks.