Search Results for author: Hao Mei

Found 8 papers, 7 papers with code

Rina: Enhancing Ring-AllReduce with In-network Aggregation in Distributed Model Training

no code implementations29 Jul 2024 Zixuan Chen, Xuandong Liu, Minglin Li, Yinfan Hu, Hao Mei, Huifeng Xing, Hao Wang, Wanxin Shi, Sen Liu, Yang Xu

The emerging In-network Aggregation (INA) has been proposed to integrate with PS to mitigate its incast issue.

Uncertainty-aware Traffic Prediction under Missing Data

1 code implementation13 Sep 2023 Hao Mei, Junxian Li, Zhiming Liang, Guanjie Zheng, Bin Shi, Hua Wei

However, most studies assume the prediction locations have complete or at least partial historical records and cannot be extended to non-historical recorded locations.

Decision Making Graph Neural Network +3

Prompt to Transfer: Sim-to-Real Transfer for Traffic Signal Control with Prompt Learning

1 code implementation28 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.

Reinforcement Learning (RL) Traffic Signal Control

Reinforcement Learning Approaches for Traffic Signal Control under Missing Data

1 code implementation21 Apr 2023 Hao Mei, Junxian Li, Bin Shi, Hua Wei

In this work, we aim to control the traffic signals in a real-world setting, where some of the intersections in the road network are not installed with sensors and thus with no direct observations around them.

reinforcement-learning Reinforcement Learning +2

LibSignal: An Open Library for Traffic Signal Control

2 code implementations19 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.

reinforcement-learning Reinforcement Learning +2

Modeling Network-level Traffic Flow Transitions on Sparse Data

1 code implementation13 Aug 2022 Xiaoliang Lei, Hao Mei, Bin Shi, Hua Wei

DTIGNN models the traffic system as a dynamic graph influenced by traffic signals, learns the transition models grounded by fundamental transition equations from transportation, and predicts future traffic states with imputation in the process.

Decision Making Imputation +1

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