Results 11 to 20 of about 338,472 (315)

Comparative Analysis of Time-Series Forecasting Models for eLoran Systems: Exploring the Effectiveness of Dynamic Weighting [PDF]

open access: goldSensors
This paper presents an advanced time-series forecasting methodology that integrates multiple machine learning models to improve data prediction in enhanced long-range navigation (eLoran) systems. The analysis evaluates five forecasting approaches: multivariate linear regression, long short-term memory (LSTM) networks, random forest (RF), a fusion model
Jianchen Di   +5 more
openalex   +3 more sources

Combining time series and cross sectional data for the analysis of dynamic marketing systems

open access: green, 2003
Vector AutoRegressive (VAR) models have become popular in analyzing the behavior of competitive marketing systems. However, an important drawback of VAR models is that the number of parameters to be estimated can become very large. This may cause estimation problems, due to a lack of degrees of freedom.
Csilla Horváth, Jaap E. Wieringa
openalex   +5 more sources

Mesoscopic Community Structure of Financial Markets Revealed by Price and Sign Fluctuations. [PDF]

open access: yesPLoS ONE, 2015
The mesoscopic organization of complex systems, from financial markets to the brain, is an intermediate between the microscopic dynamics of individual units (stocks or neurons, in the mentioned cases), and the macroscopic dynamics of the system as a ...
Assaf Almog   +3 more
doaj   +7 more sources

Estimation of Information Flow-Based Causality with Coarsely Sampled Time Series [PDF]

open access: yesEntropy
The past decade has seen growing applications of the information flow-based causality analysis, particularly with the concise formula of its maximum likelihood estimator.
X. San Liang
doaj   +2 more sources

A Novel Measure Inspired by Lyapunov Exponents for the Characterization of Dynamics in State-Transition Networks

open access: yesEntropy, 2021
The combination of network sciences, nonlinear dynamics and time series analysis provides novel insights and analogies between the different approaches to complex systems.
Bulcsú Sándor   +3 more
doaj   +1 more source

Symbolic Information Flow Measurement (SIFM): A software for measurement of information flow using symbolic analysis

open access: yesSoftwareX, 2020
Symbolic Information Flow Measurement software is used to compute the information flow between different components of a dynamical system or different dynamical systems using symbolic transfer entropy.
Dhurata Nebiu, Hiqmet Kamberaj
doaj   +1 more source

Functional observability and subspace reconstruction in nonlinear systems

open access: yesPhysical Review Research, 2022
Time-series analysis is fundamental for modeling and predicting dynamical behaviors from time-ordered data, with applications in many disciplines such as physics, biology, finance, and engineering.
Arthur N. Montanari   +3 more
doaj   +1 more source

Online real-time learning of dynamical systems from noisy streaming data

open access: yesScientific Reports, 2023
Recent advancements in sensing and communication facilitate obtaining high-frequency real-time data from various physical systems like power networks, climate systems, biological networks, etc. However, since the data are recorded by physical sensors, it
S. Sinha   +2 more
doaj   +1 more source

Time Window Determination for Inference of Time-Varying Dynamics: Application to Cardiorespiratory Interaction

open access: yesFrontiers in Physiology, 2020
Interacting dynamical systems abound in nature, with examples ranging from biology and population dynamics, through physics and chemistry, to communications and climate.
Dushko Lukarski   +5 more
doaj   +1 more source

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