Search Results for author: Chunjiang Zhu

Found 7 papers, 2 papers with code

Global-Aware Enhanced Spatial-Temporal Graph Recurrent Networks: A New Framework For Traffic Flow Prediction

no code implementations7 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.

Traffic Prediction

Multi-Scale Spatial-Temporal Recurrent Networks for Traffic Flow Prediction

no code implementations12 Oct 2023 Haiyang Liu, Chunjiang Zhu, Detian Zhang, Qing Li

Traffic flow prediction is one of the most fundamental tasks of intelligent transportation systems.

STG4Traffic: A Survey and Benchmark of Spatial-Temporal Graph Neural Networks for Traffic Prediction

1 code implementation2 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.

Graph Learning Traffic Prediction

Attention-based Spatial-Temporal Graph Convolutional Recurrent Networks for Traffic Forecasting

no code implementations25 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.

Dynamic Graph Convolutional Network with Attention Fusion for Traffic Flow Prediction

1 code implementation24 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.

An Efficient Algorithm for Deep Stochastic Contextual Bandits

no code implementations12 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.

Multi-Armed Bandits Stochastic Optimization

Escaping Saddle Points with Stochastically Controlled Stochastic Gradient Methods

no code implementations7 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.

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