1 code implementation • 18 Apr 2024 • Haoyuan Jiang, Ziyue Li, Hua Wei, Xuantang Xiong, Jingqing Ruan, Jiaming Lu, Hangyu Mao, Rui Zhao
The effectiveness of traffic light control has been significantly improved by current reinforcement learning-based approaches via better cooperation among multiple traffic lights.
1 code implementation • 12 Apr 2024 • Manideep Reddy Aliminati, Bharatesh Chakravarthi, Aayush Atul Verma, Arpitsinh Vaghela, Hua Wei, Xuesong Zhou, Yezhou Yang
In response to this gap, we present SEVD, a first-of-its-kind multi-view ego, and fixed perception synthetic event-based dataset using multiple dynamic vision sensors within the CARLA simulator.
no code implementations • 29 Mar 2024 • Aayush Atul Verma, Bharatesh Chakravarthi, Arpitsinh Vaghela, Hua Wei, Yezhou Yang
Event cameras, with their high temporal and dynamic range and minimal memory usage, have found applications in various fields.
no code implementations • 9 Mar 2024 • Tiejin Chen, Wenwang Huang, Linsey Pang, Dongsheng Luo, Hua Wei
This paper delves into the critical area of deep learning robustness, challenging the conventional belief that classification robustness and explanation robustness in image classification systems are inherently correlated.
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 • 2 Mar 2024 • Junxian Li, Bin Shi, Erfei Cui, Hua Wei, Qinghua Zheng
To the best of our knowledge, it is the first work to include hidden layer distillation for student MLP on graphs and to combine graph Positional Encoding with MLP.
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.
no code implementations • 3 Feb 2024 • Zhuomin Chen, Jiaxing Zhang, Jingchao Ni, Xiaoting Li, Yuchen Bian, Md Mezbahul Islam, Ananda Mohan Mondal, Hua Wei, Dongsheng Luo
A popular paradigm for the explainability of GNNs is to identify explainable subgraphs by comparing their labels with the ones of original graphs.
no code implementations • 11 Jan 2024 • Zicheng Wang, Tiejin Chen, Qinrun Dai, Yueqi Chen, Hua Wei, Qingkai Zeng
Compartmentalization effectively prevents initial corruption from turning into a successful attack.
1 code implementation • 3 Jan 2024 • Kai Ye, Tiejin Chen, Hua Wei, Liang Zhan
The Evidential Regression Network (ERN) represents a novel approach that integrates deep learning with Dempster-Shafer's theory to predict a target and quantify the associated uncertainty.
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 • 3 Oct 2023 • Xu Zheng, Farhad Shirani, Tianchun Wang, Wei Cheng, Zhuomin Chen, Haifeng Chen, Hua Wei, Dongsheng Luo
An explanation function for GNNs takes a pre-trained GNN along with a graph as input, to produce a `sufficient statistic' subgraph with respect to the graph label.
1 code implementation • 13 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.
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.
no code implementations • 11 Aug 2023 • Wenlu Du, Ankan Dash, Jing Li, Hua Wei, Guiling Wang
Traffic management systems play a vital role in ensuring safe and efficient transportation on roads.
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.
1 code implementation • 15 Jul 2023 • Jiaxing Zhang, Dongsheng Luo, Hua Wei
Driven by the generalized GIB, we propose a graph mixup method, MixupExplainer, with a theoretical guarantee to resolve the distribution shifting issue.
no code implementations • 15 Jul 2023 • Jiaxing Zhang, Zhuomin Chen, Hao Mei, Dongsheng Luo, Hua Wei
Graph regression is a fundamental task and has received increasing attention in a wide range of graph learning tasks.
1 code implementation • 19 Jun 2023 • Zhanyu Liu, Chumeng Liang, Guanjie Zheng, Hua Wei
Under this setting, traffic flow is highly influenced by traffic signals and the correlation between traffic nodes is dynamic.
1 code implementation • 21 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.
1 code implementation • 5 Apr 2023 • Dimitris M. Vlachogiannis, Hua Wei, Scott Moura, Jane Macfarlane
Apart from adopting FRAP, a state-of-the-art (SOTA) base model, HumanLight introduces the concept of active vehicles, loosely defined as vehicles in proximity to the intersection within the action interval window.
1 code implementation • 20 Nov 2022 • Wenlu Du, Junyi Ye, Jingyi Gu, Jing Li, Hua Wei, Guiling Wang
Traffic signal control is safety-critical for our daily life.
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.
1 code implementation • 18 Sep 2022 • Hua Wei, Jingxiao Chen, Xiyang Ji, Hongyang Qin, Minwen Deng, Siqin Li, Liang Wang, Weinan Zhang, Yong Yu, Lin Liu, Lanxiao Huang, Deheng Ye, Qiang Fu, Wei Yang
Compared to other environments studied in most previous work, ours presents new generalization challenges for competitive reinforcement learning.
1 code implementation • 13 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.
no code implementations • 7 Jan 2022 • Feng Wei, Zhenbo Chen, Zhenghong Hao, Fengxin Yang, Hua Wei, Bing Han, Sheng Guo
To make DCSC fully utilize the limited known intents, we propose a two-stage training procedure for DCSC, in which DCSC will be trained on both labeled samples and unlabeled samples, and achieve better text representation and clustering performance.
no code implementations • 19 Jun 2021 • Hua Wei, Deheng Ye, Zhao Liu, Hao Wu, Bo Yuan, Qiang Fu, Wei Yang, Zhenhui Li
While most research focuses on the state-action function part through reducing the bootstrapping error in value function approximation induced by the distribution shift of training data, the effects of error propagation in generative modeling have been neglected.
no code implementations • 22 Mar 2021 • Hua Wei, Chacha Chen, Chang Liu, Guanjie Zheng, Zhenhui Li
Simulation of the real-world traffic can be used to help validate the transportation policies.
no code implementations • 1 Mar 2020 • Hua Wei, Dongkuan Xu, Junjie Liang, Zhenhui Li
To the best of our knowledge, we are the first to learn to model the state transition of moving agents with system dynamics.
no code implementations • 9 Jan 2020 • Porter Jenkins, Hua Wei, J. Stockton Jenkins, Zhenhui Li
Moreover, learning important spatial patterns in offline retail is challenging due to the scarcity of data and the high cost of exploration and experimentation in the physical world.
no code implementations • 12 May 2019 • Guanjie Zheng, Xinshi Zang, Nan Xu, Hua Wei, Zhengyao Yu, Vikash Gayah, Kai Xu, Zhenhui Li
In this paper, we propose to re-examine the RL approaches through the lens of classic transportation theory.
1 code implementation • 12 May 2019 • Guanjie Zheng, Yuanhao Xiong, Xinshi Zang, Jie Feng, Hua Wei, Huichu Zhang, Yong Li, Kai Xu, Zhenhui Li
Increasingly available city data and advanced learning techniques have empowered people to improve the efficiency of our city functions.
4 code implementations • 11 May 2019 • Hua Wei, Nan Xu, Huichu Zhang, Guanjie Zheng, Xinshi Zang, Chacha Chen, Wei-Nan Zhang, Yanmin Zhu, Kai Xu, Zhenhui Li
To enable cooperation of traffic signals, in this paper, we propose a model, CoLight, which uses graph attentional networks to facilitate communication.
no code implementations • 17 Apr 2019 • Hua Wei, Guanjie Zheng, Vikash Gayah, Zhenhui Li
Traffic signal control is an important and challenging real-world problem, which aims to minimize the travel time of vehicles by coordinating their movements at the road intersections.
5 code implementations • 3 Mar 2018 • Huaxiu Yao, Xianfeng Tang, Hua Wei, Guanjie Zheng, Zhenhui Li
Although both factors have been considered in modeling, existing works make strong assumptions about spatial dependence and temporal dynamics, i. e., spatial dependence is stationary in time, and temporal dynamics is strictly periodical.