Title
Jointly Modeling Spatio–Temporal Dependencies and Daily Flow Correlations for Crowd Flow Prediction
Abstract
AbstractCrowd flow prediction is a vital problem for an intelligent transportation system construction in a smart city. It plays a crucial role in traffic management and behavioral analysis, thus it has raised great attention from many researchers. However, predicting crowd flows timely and accurately is a challenging task that is affected by many complex factors such as the dependencies of adjacent regions or recent crowd flows. Existing models mainly focus on capturing such dependencies in spatial or temporal domains and fail to model relations between crowd flows of distant regions. We notice that each region has a relatively fixed daily flow and some regions (even very far away from each other) may share similar flow patterns which show strong correlations among them. In this article, we propose a novel model named Double-Encoder which follows a general encoder–decoder framework for multi-step citywide crowd flow prediction. The model consists of two encoder modules named ST-Encoder and FR-Encoder to model spatial-temporal dependencies and daily flow correlations, respectively. We conduct extensive experiments on two real-world datasets to evaluate the performance of the proposed model and show that our model consistently outperforms state-of-the-art methods.
Year
DOI
Venue
2021
10.1145/3439346
ACM Transactions on Knowledge Discovery from Data
Keywords
DocType
Volume
Multi-step crowd flow prediction, encoder-decoder framework, CNN, ConvLSTM, latent representation
Journal
15
Issue
ISSN
Citations 
4
1556-4681
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Tianzi Zang132.09
ZhuYanmin200.34
Yanan Xu383.78
Jiadi Yu437157.86