Journal
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
Volume 31, Issue 1-3, Pages 60-68Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cnsns.2015.07.011
Keywords
Complexity; Multiscale permutation entropy; Multiscale weighted-permutation entropy; Traffic series
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Funding
- China National Science [61371130, 61304145]
- Beijing National Science [4122059]
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Permutation entropy (PE) has been recently suggested as a relative measure of complexity in nonlinear systems, such as traffic system and physiology system. A weighted-permutation entropy (WPE) analysis based on the weight assigned to each vector was proposed to consider the amplitude information. We introduce PE/WPE technique to multiple time scales, called multiscale permutation entropy (MSPE)/multiscale weighted-permutation entropy (MSWPE), which are applied to investigate complexities of different traffic series. Both approaches successfully detect the temporal structures of traffic signals and distinguish the differences between workday and weekend time series. (C) 2015 Elsevier B.V. All rights reserved.
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