A symbolic network-based nonlinear theory for dynamical systems observability

C Letellier, I Sendiña-Nadal, E Bianco-Martinez… - Scientific reports, 2018 - nature.com
When the state of the whole reaction network can be inferred by just measuring the
dynamics of a limited set of nodes the system is said to be fully observable. However, as the …

Observability and synchronization of neuron models

LA Aguirre, LL Portes, C Letellier - Chaos: An Interdisciplinary Journal …, 2017 - pubs.aip.org
Observability is the property that enables recovering the state of a dynamical system from a
reduced number of measured variables. In high-dimensional systems, it is therefore …

Controllability and synchronizability: Are they related?

LA Aguirre, C Letellier - Chaos, Solitons & Fractals, 2016 - Elsevier
In the two last decades the concept of observability has been formally linked to that of
embedding in the context of nonlinear dynamics. Such a concept has been shown to play an …

The reliability of recurrence network analysis is influenced by the observability properties of the recorded time series

LL Portes, AN Montanari, DC Correa, M Small… - … Journal of Nonlinear …, 2019 - pubs.aip.org
Recurrence network analysis (RNA) is a remarkable technique for the detection of
dynamical transitions in experimental applications. However, in practical experiments, often …

Recurrence plots for the assessment of patient-ventilator interactions quality during invasive mechanical ventilation

NC Carvalho, LL Portes, A Beda, L Tallarico… - … Journal of Nonlinear …, 2018 - pubs.aip.org
Inappropriate patient-ventilator interactions'(PVI) quality is associated with adverse clinical
consequences, such as patient anxiety/fear and increased need of sedative and paralytic …

Enhancing multivariate singular spectrum analysis for phase synchronization: The role of observability

LL Portes, LA Aguirre - Chaos: An Interdisciplinary Journal of Nonlinear …, 2016 - pubs.aip.org
Multivariate singular spectrum analysis (M-SSA) was recently adapted to study systems of
coupled oscillators. It does not require an a priori definition for phase nor detailed …

Detecting dynamical anomalies in time series from different palaeoclimate proxy archives using windowed recurrence network analysis

J Lekscha, RV Donner - Nonlinear Processes in Geophysics, 2020 - npg.copernicus.org
Analysing palaeoclimate proxy time series using windowed recurrence network analysis
(wRNA) has been shown to provide valuable information on past climate variability. In turn, it …

Parametric phase diffusion analysis of irregular oscillations

JTC Schwabedal - Europhysics Letters, 2014 - iopscience.iop.org
Parametric phase diffusion analysis (ΦDA), a method to determine variability of irregular
oscillations, is presented. ΦDA is formulated as an analysis technique for sequences of …

[PDF][PDF] Complex systems methods for detecting dynamical anomalies in past climate variability

JS Lekscha - 2020 - edoc.hu-berlin.de
Studying palaeoclimate proxy data from archives such as tree rings, lake sediments,
speleothems, and ice cores using windowed recurrence network analysis offers the …