Results 21 to 30 of about 31,690 (208)

An efficient deep learning model for brain tumour detection with privacy preservation

open access: yesCAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract Internet of medical things (IoMT) is becoming more prevalent in healthcare applications as a result of current AI advancements, helping to improve our quality of life and ensure a sustainable health system. IoMT systems with cutting‐edge scientific capabilities are capable of detecting, transmitting, learning and reasoning.
Mujeeb Ur Rehman   +8 more
wiley   +1 more source

Lyapunov exponents for temporal networks

open access: yesPhysical Review E, 2023
By interpreting a temporal network as a trajectory of a latent graph dynamical system, we introduce the concept of dynamical instability of a temporal network, and construct a measure to estimate the network Maximum Lyapunov Exponent (nMLE) of a temporal network trajectory.
Annalisa Caligiuri   +4 more
openaire   +5 more sources

Response of Lyapunov exponents to diffusion state of biological networks

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2020
The topologies of protein-protein interaction networks are uncertain and noisy. The network topology determines the reliability of computational knowledge acquired from noisy networks and can impose the deterministic and non-deterministic character of ...
Altuntas Volkan   +2 more
doaj   +1 more source

Affine Manifolds and Zero Lyapunov Exponents in Genus 3 [PDF]

open access: yes, 2015
In previous work, the author fully classified orbit closures in genus three with maximally many (four) zero Lyapunov exponents of the Kontsevich-Zorich cocycle.
Aulicino, David
core   +1 more source

Lyapunov exponents of heavy particles in turbulence [PDF]

open access: yes, 2006
Lyapunov exponents of heavy particles and tracers advected by homogeneous and isotropic turbulent flows are investigated by means of direct numerical simulations.
Bec, J   +6 more
core   +7 more sources

Removing zero Lyapunov exponents [PDF]

open access: yesErgodic Theory and Dynamical Systems, 2003
Motivated by \textit{M. Shub} and \textit{A. Wilkinson}'s result [Invent. Math. 139, 495--508 (2000; Zbl 0976.37013)] for an explicit family of partially hyperbolic diffeomorphisms of the torus \(T^3\) in perturbing the Lyapunov exponents of the center direction, the authors present a local version of their arguments, allowing one to perturb the center
Baraviera, Alexandre T.   +1 more
openaire   +2 more sources

Lyapunov Exponents Everywhere and Rigidity [PDF]

open access: yesJournal of Dynamical and Control Systems, 2021
In the present work we obtain rigidity results analysing the set of regular points, in the sense of Oseledec's Theorem. It is presented a study on the possibility of an Anosov diffeomorphisms having all Lyapunov exponents defined everywhere. We prove that this condition implies local rigidity of an Anosov automorphism of the torus $\mathbb{T}^d, d \geq
Pereira Micena, Fernando   +1 more
openaire   +3 more sources

Lyapunov exponents in N=2 supersymmetric Jackiw-Teitelboim gravity

open access: yesPhysics Letters B, 2022
We study N=2 supersymmetric Jackiw-Teitelboim (JT) gravity at finite temperature coupled to matter. The matter fields are related to superconformal primaries by AdS/CFT duality. Due to broken super reparametrisation invariance in the SCFT dual, there are
Ruben Campos Delgado, Stefan Förste
doaj   +1 more source

Maximal Lyapunov exponent at crises [PDF]

open access: yesPhysical Review E, 1996
We study the variation of Lyapunov exponents of simple dynamical systems near attractor-widening and attractor-merging crises. The largest Lyapunov exponent has universal behaviour, showing abrupt variation as a function of the control parameter as the system passes through the crisis point, either in the value itself, in the case of the attractor ...
Mehra, Vishal, Ramaswamy, Ramakrishna
openaire   +3 more sources

Features of the Computational Implementation of the Algorithm for Estimating the Lyapunov Exponents of Systems with Delay

open access: yesМоделирование и анализ информационных систем, 2019
We consider the computational implementation of the algorithm for Lyapunov exponents spectrum numerical estimation for delay differential equations. It is known that for such systems, as well as for boundary value problems, it is not possible to prove ...
Vladimir E. Goryunov
doaj   +1 more source

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