作者
Zhishuai Li, Gang Xiong, Yonglin Tian, Yisheng Lv, Yuanyuan Chen, Pan Hui, Xiang Su
发表日期
2022
期刊
IEEE Transactions on Intelligent Transportation Systems
卷号
23
期号
2
页码范围
1456-1466
出版商
IEEE
简介
Accurate and timely traffic flow prediction is crucial for intelligent transportation systems (ITS). Recent advances in graph-based neural networks have achieved promising prediction results. However, some challenges remain, especially regarding graph construction and the time complexity of models. In this paper, we propose a multi-stream feature fusion approach to extract and integrate rich features from traffic data and leverage a data-driven adjacent matrix instead of the distance-based matrix to construct graphs. We calculate the Spearman rank correlation coefficient between monitor stations to obtain the initial adjacent matrix and fine-tune it while training. As to the model, we construct a multi-stream feature fusion block (MFFB) module, which includes a three-channel network and the soft-attention mechanism. The three-channel networks are graph convolutional neural network (GCN), gated recurrent unit …
引用总数
学术搜索中的文章
Z Li, G Xiong, Y Tian, Y Lv, Y Chen, P Hui, X Su - IEEE transactions on intelligent transportation systems, 2020