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Relationship between Continuum of Hurst Exponents of Noise-like Time Series and the Cantor Set

In this paper, we have modified the Detrended Fluctuation Analysis (DFA) using the ternary Cantor set. We propose a modification of the DFA algorithm, Cantor DFA (CDFA), which uses the Cantor set theory of base 3 as a scale for segment sizes in the DFA algorithm. An investigation of the phenomena ge...

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Autores principales: Mariani, Maria C., Kubin, William, Asante, Peter K., Guthrie, Joe A., Tweneboah, Osei K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8622546/
https://www.ncbi.nlm.nih.gov/pubmed/34828203
http://dx.doi.org/10.3390/e23111505
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author Mariani, Maria C.
Kubin, William
Asante, Peter K.
Guthrie, Joe A.
Tweneboah, Osei K.
author_facet Mariani, Maria C.
Kubin, William
Asante, Peter K.
Guthrie, Joe A.
Tweneboah, Osei K.
author_sort Mariani, Maria C.
collection PubMed
description In this paper, we have modified the Detrended Fluctuation Analysis (DFA) using the ternary Cantor set. We propose a modification of the DFA algorithm, Cantor DFA (CDFA), which uses the Cantor set theory of base 3 as a scale for segment sizes in the DFA algorithm. An investigation of the phenomena generated from the proof using real-world time series based on the theory of the Cantor set is also conducted. This new approach helps reduce the overestimation problem of the Hurst exponent of DFA by comparing it with its inverse relationship with [Formula: see text] of the Truncated Lévy Flight (TLF). CDFA is also able to correctly predict the memory behavior of time series.
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spelling pubmed-86225462021-11-27 Relationship between Continuum of Hurst Exponents of Noise-like Time Series and the Cantor Set Mariani, Maria C. Kubin, William Asante, Peter K. Guthrie, Joe A. Tweneboah, Osei K. Entropy (Basel) Article In this paper, we have modified the Detrended Fluctuation Analysis (DFA) using the ternary Cantor set. We propose a modification of the DFA algorithm, Cantor DFA (CDFA), which uses the Cantor set theory of base 3 as a scale for segment sizes in the DFA algorithm. An investigation of the phenomena generated from the proof using real-world time series based on the theory of the Cantor set is also conducted. This new approach helps reduce the overestimation problem of the Hurst exponent of DFA by comparing it with its inverse relationship with [Formula: see text] of the Truncated Lévy Flight (TLF). CDFA is also able to correctly predict the memory behavior of time series. MDPI 2021-11-13 /pmc/articles/PMC8622546/ /pubmed/34828203 http://dx.doi.org/10.3390/e23111505 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Mariani, Maria C.
Kubin, William
Asante, Peter K.
Guthrie, Joe A.
Tweneboah, Osei K.
Relationship between Continuum of Hurst Exponents of Noise-like Time Series and the Cantor Set
title Relationship between Continuum of Hurst Exponents of Noise-like Time Series and the Cantor Set
title_full Relationship between Continuum of Hurst Exponents of Noise-like Time Series and the Cantor Set
title_fullStr Relationship between Continuum of Hurst Exponents of Noise-like Time Series and the Cantor Set
title_full_unstemmed Relationship between Continuum of Hurst Exponents of Noise-like Time Series and the Cantor Set
title_short Relationship between Continuum of Hurst Exponents of Noise-like Time Series and the Cantor Set
title_sort relationship between continuum of hurst exponents of noise-like time series and the cantor set
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8622546/
https://www.ncbi.nlm.nih.gov/pubmed/34828203
http://dx.doi.org/10.3390/e23111505
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