Title
Latent Space Model for Road Networks to Predict Time-Varying Traffic.
Abstract
Real-time traffic prediction from high-fidelity spatiotemporal traffic sensor datasets is an important problem for intelligent transportation systems and sustainability. However, it is challenging due to the complex topological dependencies and high dynamism associated with changing road conditions. In this paper, we propose a Latent Space Model for Road Networks (LSM-RN) to address these challenges holistically. In particular, given a series of road network snapshots, we learn the attributes of vertices in latent spaces which capture both topological and temporal properties. As these latent attributes are time-dependent, they can estimate how traffic patterns form and evolve. In addition, we present an incremental online algorithm which sequentially and adaptively learns the latent attributes from the temporal graph changes. Our framework enables real-time traffic prediction by 1) exploiting real-time sensor readings to adjust/update the existing latent spaces, and 2) training as data arrives and making predictions on-the-fly. By conducting extensive experiments with a large volume of real-world traffic sensor data, we demonstrate the superiority of our framework for real-time traffic prediction on large road networks over competitors as well as baseline graph-based LSM's.
Year
DOI
Venue
2016
10.1145/2939672.2939860
KDD
Keywords
DocType
Volume
Latent space model,real-time traffic forecasting,road network
Conference
abs/1602.04301
Citations 
PageRank 
References 
27
0.93
23
Authors
6
Name
Order
Citations
PageRank
Dingxiong Deng11808.94
Cyrus Shahabi25010411.59
Ugur Demiryurek342925.39
Linhong Zhu430114.62
Qi Yu518812.87
Yan Liu62551189.16