Ordinal patterns-based methodologies for distinguishing chaos from noise in discrete time series

M Zanin, F Olivares - Communications Physics, 2021 - nature.com
One of the most important aspects of time series is their degree of stochasticity vs. chaoticity.
Since the discovery of chaotic maps, many algorithms have been proposed to discriminate …

20 years of ordinal patterns: Perspectives and challenges

I Leyva, JH Martínez, C Masoller, OA Rosso… - Europhysics …, 2022 - iopscience.iop.org
In 2002, in a seminal article, Bandt and Pompe proposed a new methodology for the
analysis of complex time series, now known as Ordinal Analysis. The ordinal methodology is …

[HTML][HTML] Permutation entropy based time series analysis: Equalities in the input signal can lead to false conclusions

L Zunino, F Olivares, F Scholkmann, OA Rosso - Physics Letters A, 2017 - Elsevier
A symbolic encoding scheme, based on the ordinal relation between the amplitude of
neighboring values of a given data sequence, should be implemented before estimating the …

Biometric signature authentication using machine learning techniques: Current trends, challenges and opportunities

K Bibi, S Naz, A Rehman - Multimedia Tools and Applications, 2020 - Springer
Biometric systems are playing a key role in the multitude of applications and placed at the
center of debate in the scientific research community. Among the numerous biometric …

Application of fairness to healthcare, organizational justice, and finance: A survey

P Birzhandi, YS Cho - Expert Systems with Applications, 2023 - Elsevier
While artificial intelligence is widely employed in many applications, it is vulnerable to bias
and unethical use. Therefore, fairness evaluation tools and bias mitigation algorithms have …

A one-class support vector machine calibration method for time series change point detection

B Jin, Y Chen, D Li, K Poolla… - … on prognostics and …, 2019 - ieeexplore.ieee.org
Identifying the change point of a system's health status is important. Indeed, a change point
usually signifies an incipient fault under development. The One-Class Support Vector …

Complexity entropy-analysis of monthly rainfall time series in northeastern Brazil

ASA Silva, RSC Menezes, OA Rosso, B Stosic… - Chaos, Solitons & …, 2021 - Elsevier
In this work we analyze predictability and complexity of monthly rainfall temporal series
recorded from 1950 to 2012, at 133 gauging stations in Pernambuco state, northeastern …

Learning and distinguishing time series dynamics via ordinal patterns transition graphs

JB Borges, HS Ramos, RAF Mini, OA Rosso… - Applied Mathematics …, 2019 - Elsevier
Strategies based on the extraction of measures from ordinal patterns transformation, such as
probability distributions and transition graphs, have reached relevant advancements in …

Hydrological changes caused by the construction of dams and reservoirs: The CECP analysis

I Daniel de Carvalho Barreto, T Stosic… - … Journal of Nonlinear …, 2023 - pubs.aip.org
We investigated the influence of the construction of cascade dams and reservoirs on the
predictability and complexity of the streamflow of the São Francisco River, Brazil, by using …

Iot botnet detection based on anomalies of multiscale time series dynamics

JB Borges, JPS Medeiros, LPA Barbosa… - … on Knowledge and …, 2022 - ieeexplore.ieee.org
In this work, we propose a solution for detecting botnet attacks on the Internet of Things (IoT)
by identifying anomalies in the temporal dynamics of their devices. Given their limited …