Articles with "visibility graph" as a keyword



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Visibility Graph Analysis of Alaska Crustal and Aleutian Subduction Zone Seismicity: An Investigation of the Correlation between b Value and k–M Slope

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Published in 2018 at "Pure and Applied Geophysics"

DOI: 10.1007/s00024-018-1947-1

Abstract: Statistical methods are useful tools to aid the recognition of patterns and extract information from a large amount of data available through resources such as earthquake catalogs. Visibility graph analysis is one of these relatively… read more here.

Keywords: visibility; slope; graph analysis; visibility graph ... See more keywords
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An improvement of the measurement of time series irreversibility with visibility graph approach

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Published in 2018 at "Physica A: Statistical Mechanics and its Applications"

DOI: 10.1016/j.physa.2018.02.131

Abstract: Abstract We propose a method to improve the measure of real-valued time series irreversibility which contains two tools: the directed horizontal visibility graph and the Kullback–Leibler divergence. The degree of time irreversibility is estimated by… read more here.

Keywords: time series; time; irreversibility; visibility graph ... See more keywords
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Visibility graph analysis of economy policy uncertainty indices

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Published in 2019 at "Physica A: Statistical Mechanics and its Applications"

DOI: 10.1016/j.physa.2019.121748

Abstract: Abstract Uncertainty plays an important role in the global economy. In this paper, the economic policy uncertainty (EPU) indices of the United States and China are selected as the proxy variable corresponding to the uncertainty… read more here.

Keywords: visibility graph; uncertainty indices; uncertainty; policy uncertainty ... See more keywords
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Characterising submonolayer deposition via visibility graphs

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Published in 2019 at "Physica A: Statistical Mechanics and its Applications"

DOI: 10.1016/j.physa.2019.121872

Abstract: We use visibility graphs as a tool to analyse the results of kinetic Monte Carlo (kMC) simulations of submonolayer deposition in a one-dimensional point island model. We introduce an efficient algorithm for the computation of… read more here.

Keywords: visibility; submonolayer deposition; visibility graph; visibility graphs ... See more keywords
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Nonuniversality of the horizontal visibility graph in inferring series periodicity

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Published in 2019 at "Physica A: Statistical Mechanics and its Applications"

DOI: 10.1016/j.physa.2019.122234

Abstract: Abstract The filter horizontal visibility graph (fHVg) algorithm was recently proposed to detect the hidden periodicity of intrinsically periodic series under the pollution of noise. In this work, we evaluate the reliability of this algorithm… read more here.

Keywords: periodicity; visibility graph; series; horizontal visibility ... See more keywords
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Visibility graph based temporal community detection with applications in biological time series

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Published in 2021 at "Scientific Reports"

DOI: 10.1038/s41598-021-84838-x

Abstract: Temporal behavior is an essential aspect of all biological systems. Time series have been previously represented as networks. Such representations must address two fundamental problems on how to: (1) Create appropriate networks to reflect the… read more here.

Keywords: community detection; time series; visibility graph; time ... See more keywords
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Ordered visibility graph average aggregation operator: An application in produced water management.

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Published in 2017 at "Chaos"

DOI: 10.1063/1.4977186

Abstract: Complex networks are widely used in modeling complex system. How to aggregate data in complex systems is still an open issue. In this paper, an ordered visibility graph average aggregation operator is proposed which is… read more here.

Keywords: average aggregation; graph average; graph; visibility graph ... See more keywords
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Visibility Graph Approach to Extreme Event Series

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Published in 2023 at "Chinese Physics B"

DOI: 10.1088/1674-1056/acd62b

Abstract: An extreme event may lead to serious disaster to a complex system. In an extreme event series there exist generally non-trivial patterns covering different time scales. Investigations on extreme events are currently based upon statistics,… read more here.

Keywords: extreme event; event series; series; visibility graph ... See more keywords
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A Data-Driven Dynamic Data Fusion Method Based on Visibility Graph and Evidence Theory

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2931951

Abstract: Dynamic data fusion on time series plays an important role in real applications like target identification. The existing credibility decay models (CDM) may be too subjective for parameters setting and do not make full use… read more here.

Keywords: data fusion; time; visibility graph;
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Early Detection of Late Onset Sepsis in Premature Infants Using Visibility Graph Analysis of Heart Rate Variability

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Published in 2021 at "IEEE Journal of Biomedical and Health Informatics"

DOI: 10.1109/jbhi.2020.3021662

Abstract: Objective: This study was designed to test the diagnostic value of visibility graph features derived from the heart rate time series to predict late onset sepsis (LOS) in preterm infants using machine learning. Methods: The… read more here.

Keywords: visibility graph; visibility; heart rate;

Multiscale Analysis of Time Irreversibility Based on Phase-Space Reconstruction and Horizontal Visibility Graph Approach

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Published in 2018 at "Fluctuation and Noise Letters"

DOI: 10.1142/s0219477518500062

Abstract: Time irreversibility is an important property of nonequilibrium dynamic systems. A visibility graph approach was recently proposed, and this approach is generally effective to measure time irreversibility of time series. However, its result may be… read more here.

Keywords: graph approach; time; visibility graph; approach ... See more keywords