The identification of directional couplings (or drive-response relationships) in the analysis of interacting nonlinear systems is an important piece of information to understand their dynamics. This task is especially challenging when the analyst’s knowledge of the systems reduces virtually to time series of observations. Spurred by the success of Granger causality in econometrics, the study of cause-effect relationships (not to be confounded with statistical correlations) was extended to other fields, thus favoring the introduction of further tools such as transfer entropy. Currently, the research on old and new causality tools along with their pitfalls and applications in ever more general situations is going through a time of much activity. In this paper, we re-examine the method of the joint distance distribution to detect directional couplings between two multivariate flows. This method is based on the forced Takens theorem, and, more specifically, it exploits the existence of a continuous mapping from the reconstructed attractor of the response system to the reconstructed attractor of the driving system, an approach that is increasingly drawing the attention of the data analysts. The numerical results with Lorenz and Rössler oscillators in three different interaction networks (including hidden common drivers) are quite satisfactory, except when phase synchronization sets in. They also show that the method of the joint distance distribution outperforms the lowest dimensional transfer entropy in the cases considered. The robustness of the results to the sampling interval, time series length, observational noise, and metric is analyzed too.
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July 2018
Research Article|
July 06 2018
Detecting directional couplings from multivariate flows by the joint distance distribution
José M. Amigó
;
José M. Amigó
a)
1
Centro de Investigación Operativa, Universidad Miguel Hernández
, Avda. de la Universidad s/n, 03202 Elche, Spain
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Yoshito Hirata
Yoshito Hirata
b)
2
Mathematics and Informatics Center, The University of Tokyo
, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
and The Institute of Industrial Science, The University of Tokyo
, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
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Chaos 28, 075302 (2018)
Article history
Received:
October 26 2017
Accepted:
February 05 2018
Citation
José M. Amigó, Yoshito Hirata; Detecting directional couplings from multivariate flows by the joint distance distribution. Chaos 1 July 2018; 28 (7): 075302. https://doi.org/10.1063/1.5010779
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