Simultaneous Incomplete Traffic Data Imputation and Similarity Pattern Discovery with Bayesian Nonparametric Tensor Decomposition
Joint Authors
Source
Journal of Advanced Transportation
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-12
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
A crucial task in traffic data analysis is similarity pattern discovery, which is of great importance to urban mobility understanding and traffic management.
Recently, a wide range of methods for similarities discovery have been proposed and the basic assumption of them is that traffic data is complete.
However, missing data problem is inevitable in traffic data collection process due to a variety of reasons.
In this paper, we propose the Bayesian nonparametric tensor decomposition (BNPTD) to achieve incomplete traffic data imputation and similarity pattern discovery simultaneously.
BNPTD is a hierarchical probabilistic model, which is comprised of Bayesian tensor decomposition and Dirichlet process mixture model.
Furthermore, we develop an efficient variational inference algorithm to learn the model.
Extensive experiments were conducted on a smart card dataset collected in Guangzhou, China, demonstrating the effectiveness of our methods.
It should be noted that the proposed BNPTD is universal and can also be applied to other spatiotemporal traffic data.
American Psychological Association (APA)
Han, Yaxiong& He, Zhaocheng. 2020. Simultaneous Incomplete Traffic Data Imputation and Similarity Pattern Discovery with Bayesian Nonparametric Tensor Decomposition. Journal of Advanced Transportation،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1176163
Modern Language Association (MLA)
Han, Yaxiong& He, Zhaocheng. Simultaneous Incomplete Traffic Data Imputation and Similarity Pattern Discovery with Bayesian Nonparametric Tensor Decomposition. Journal of Advanced Transportation No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1176163
American Medical Association (AMA)
Han, Yaxiong& He, Zhaocheng. Simultaneous Incomplete Traffic Data Imputation and Similarity Pattern Discovery with Bayesian Nonparametric Tensor Decomposition. Journal of Advanced Transportation. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1176163
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1176163