We integrate machine learning approaches with nonlinear time series analysis, specifically utilizing recurrence measures to classify various dynamical states emerging from time series. We implement three machine learning algorithms: Logistic Regression, Random Forest, and Support Vector Machine for this study. The input features are derived from the recurrence quantification of nonlinear time series and characteristic measures of the corresponding recurrence networks. For training and testing, we generate synthetic data from standard nonlinear dynamical systems and evaluate the efficiency and performance of the machine learning algorithms in classifying time series into periodic, chaotic, hyperchaotic, or noisy categories. Additionally, we explore the significance of input features in the classification scheme and find that the features quantifying the density of recurrence points are the most relevant. Furthermore, we illustrate how the trained algorithms can successfully predict the dynamical states of two variable stars, SX Her and AC Her, from the data of their light curves. We also indicate how the algorithms can be trained to classify data from discrete systems.
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April 2024
Research Article|
April 24 2024
Machine learning approach to detect dynamical states from recurrence measures
Special Collection:
Data-Driven Models and Analysis of Complex Systems
Dheeraja Thakur
;
Dheeraja Thakur
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Software, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
School of Physics, Indian Institute of Science Education and Research
, Thiruvananthapuram 695551, Kerala, India
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Athul Mohan
;
Athul Mohan
(Data curation, Formal analysis, Investigation, Validation, Visualization, Writing – original draft)
2
Department of Physics SAS SNDP Yogam College, Konni, Mahatma Gandhi University
, Kottayam 686560, Kerala, India
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G. Ambika
;
G. Ambika
(Conceptualization, Formal analysis, Investigation, Methodology, Supervision, Validation, Visualization, Writing – review & editing)
1
School of Physics, Indian Institute of Science Education and Research
, Thiruvananthapuram 695551, Kerala, India
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Chandrakala Meena
Chandrakala Meena
a)
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Validation, Visualization, Writing – review & editing)
1
School of Physics, Indian Institute of Science Education and Research
, Thiruvananthapuram 695551, Kerala, India
a)Author to whom correspondence should be addressed: c.meena@iisertvm.ac.in
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a)Author to whom correspondence should be addressed: c.meena@iisertvm.ac.in
Chaos 34, 043151 (2024)
Article history
Received:
January 06 2024
Accepted:
March 29 2024
Citation
Dheeraja Thakur, Athul Mohan, G. Ambika, Chandrakala Meena; Machine learning approach to detect dynamical states from recurrence measures. Chaos 1 April 2024; 34 (4): 043151. https://doi.org/10.1063/5.0196382
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