NDLI: Compression algorithm of road traffic data in time series based on temporal correlation

Content Provider	IET Digital Library
Author	Wang, Yong dong Xu, Dong wei Lu, Yun Shen, Jun Yan Zhang, Gui jun
Abstract	The numerous applications of urban traffic detection technology in road traffic data acquisition bring new challenges for transportation and storage of road traffic big data. The travel demand and travel time of travel participants present certain specific regularity; thus, a compression algorithm for road traffic data in time series based on temporal correlation was proposed in this study. First, the temporal correlation of the road traffic data in time series was analysed. Second, the reference sequences of road traffic characteristics were constructed to acquire the base data under different modes. Third, the training data under the same mode were extracted to acquire the difference data between training and base data. Then the optimal threshold of the difference data was trained. Fourth, the optimal threshold was introduced into the difference data between real-time and base data in time series, combining with Lempel-Ziv-Welch (LZW) encoding to achieve the compression of difference data. Finally, the reconstruction of real-time road traffic data in time series was accomplished based on LZW decoding technology. Six typical road segments in Beijing were adopted for case studies. The final results prove the feasibility of the algorithm, and that the reconstructed data can achieve high accuracy.
Starting Page	177
Ending Page	185
Page Count	9
ISSN	1751956X
Volume Number	12
e-ISSN	17519578
Issue Number	Issue 3, Apr (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-its/12/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-its.2016.0244
Journal	IET Intelligent Transport Systems
Publisher Date	2017-11-29
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Beijing Compression Algorithm Data Compression Data Handling Technique Data Reconstruction Decoding Lempel–Ziv–Welch Encoding LZW Decoding Technology Road Traffic Road Traffic Data Statistics Temporal Correlation Time Series Time Series Compression Algorithm Traffic Engineering Computing
Content Type	Text
Resource Type	Article
Subject	Law Transportation Environmental Science Mechanical Engineering

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