no code implementations • 7 Jan 2024 • Haiyang Liu, Chunjiang Zhu, Detian Zhang
A sequence-aware graph neural network is proposed and integrated into the Gated Recurrent Unit (GRU) to learn non-fixed graphs at different time steps and capture local temporal relationships.
no code implementations • 12 Oct 2023 • Haiyang Liu, Chunjiang Zhu, Detian Zhang, Qing Li
Traffic flow prediction is one of the most fundamental tasks of intelligent transportation systems.
1 code implementation • 2 Jul 2023 • Xunlian Luo, Chunjiang Zhu, Detian Zhang, Qing Li
However, a survey study of graph learning, spatial-temporal graph models for traffic, as well as a fair comparison of baseline models are pending and unavoidable issues.
no code implementations • 25 Feb 2023 • Haiyang Liu, Chunjiang Zhu, Detian Zhang, Qing Li
The key challenge is to effectively model complex spatial-temporal dependencies and correlations in modern traffic data.
1 code implementation • 24 Feb 2023 • Xunlian Luo, Chunjiang Zhu, Detian Zhang, Qing Li
Accurate and real-time traffic state prediction is of great practical importance for urban traffic control and web mapping services.
no code implementations • 12 Apr 2021 • Tan Zhu, Guannan Liang, Chunjiang Zhu, Haining Li, Jinbo Bi
In this work, we formulate the SCB that uses a DNN reward function as a non-convex stochastic optimization problem, and design a stage-wise stochastic gradient descent algorithm to optimize the problem and determine the action policy.
no code implementations • 7 Mar 2021 • Guannan Liang, Qianqian Tong, Chunjiang Zhu, Jinbo Bi
Stochastically controlled stochastic gradient (SCSG) methods have been proved to converge efficiently to first-order stationary points which, however, can be saddle points in nonconvex optimization.