Algorithmic approaches for assessing irreversibility in time series: Review and comparison
M Zanin, D Papo - Entropy, 2021 - mdpi.com
The assessment of time irreversibility, ie, of the lack of invariance of the statistical properties
of a system under the operation of time reversal, is a topic steadily gaining attention within …
of a system under the operation of time reversal, is a topic steadily gaining attention within …
Order parameter and entropy of seismicity in natural time before major earthquakes: recent results
A lot of work in geosciences has been completed during the last decade on the analysis in
the new concept of time, termed natural time, introduced in 2001. The main advances are …
the new concept of time, termed natural time, introduced in 2001. The main advances are …
Detecting anomalies in time series data via a deep learning algorithm combining wavelets, neural networks and Hilbert transform
The quest for more efficient real-time detection of anomalies in time series data is critically
important in numerous applications and systems ranging from intelligent transportation …
important in numerous applications and systems ranging from intelligent transportation …
Estimating the epicenter of a future strong earthquake in Southern California, Mexico, and Central America by means of natural time analysis and earthquake …
It has recently been shown in the Eastern Mediterranean that by combining natural time
analysis of seismicity with earthquake networks based on similar activity patterns and …
analysis of seismicity with earthquake networks based on similar activity patterns and …
Self-organized criticality and earthquake predictability: A long-standing question in the light of natural time analysis
Abstract After the Bak-Tang-Wisenfeld seminal work on self-organized criticality (SOC), the
following claim appeared by other workers in the 1990s: Earthquakes (EQs) cannot be …
following claim appeared by other workers in the 1990s: Earthquakes (EQs) cannot be …
Nowcasting of air pollution episodes in megacities: a case study for Athens, Greece
CA Varotsos, Y Mazei, D Saldaev, M Efstathiou… - Atmospheric Pollution …, 2021 - Elsevier
The main objective of the present study is to develop a model for the prediction of the
extreme events of air pollution in megacities using the concept of so-called" natural time" …
extreme events of air pollution in megacities using the concept of so-called" natural time" …
Phenomena preceding major earthquakes interconnected through a physical model
The analysis of earthquake time series in a new time domain termed natural time enables
the uncovering of hidden properties in time series of complex systems and has been …
the uncovering of hidden properties in time series of complex systems and has been …
Estimating the epicenter of an impending strong earthquake by combining the seismicity order parameter variability analysis with earthquake networks and …
The variance κ 1 of the natural time analysis of earthquake catalogs was proposed in 2005
as an order parameter for seismicity, whose fluctuations proved, in 2011, to be minimized a …
as an order parameter for seismicity, whose fluctuations proved, in 2011, to be minimized a …
A remarkable change of the entropy of seismicity in natural time under time reversal before the super-giant M9 Tohoku earthquake on 11 March 2011
Here, we analyze in natural time all earthquakes of magnitude (M) 3.5 or larger in Japan
from 1 January 1984 until the occurrence of the super-giant M9 Tohoku earthquake on 11 …
from 1 January 1984 until the occurrence of the super-giant M9 Tohoku earthquake on 11 …
Natural time analysis of global seismicity
SRG Christopoulos, PK Varotsos, J Perez-Oregon… - Applied Sciences, 2022 - mdpi.com
Natural time analysis enables the introduction of an order parameter for seismicity, which is
just the variance of natural time χ, κ 1=〈 χ 2〉−〈 χ〉 2. During the last years, there has been …
just the variance of natural time χ, κ 1=〈 χ 2〉−〈 χ〉 2. During the last years, there has been …