Citation

Gholampour I, Mirzahossein H, Chiu YC. Transp. Lett. 2022; 14(4): 339-346.

Copyright

(Copyright © 2022, Maney Publishing, Publisher Informa - Taylor and Francis Group)

DOI

10.1080/19427867.2020.1745357

PMID

unavailable

Abstract

The importance of traffic pattern prediction for traffic management systems has significantly increased in recent years. This paper presents a novel method to find unusual traffic patterns by using topic modeling. We have employed topic models to provide an abstraction of speed camera data from Tehran, the capital of Iran. In this methodology, topic modeling is applied to days of weeks and months in a year and extracts weekly and monthly traffic patterns. Analysis of the abstract descriptions and their adaptation to actual urban traffic patterns prove the effectiveness of the proposed method. The model training convergence is also practically verified. Based on our experiments, our method achieves an accuracy of 99% in detecting abnormal conditions, which indicates the fitness of the topic modeling abstraction. Such a powerful abstraction capability can be exploited as a method for data comparison and search procedures.

Language: en

Keywords

anomaly detection; big data; topic Modeling; Traffic patterns