Results 1 to 10 of about 244 (53)

Capturing asymmetry in COVID-19 counts using an improved skewness measure for time series data [PDF]

open access: yesMethodsX, 2023
Capturing asymmetry among time series is an important area of research as it provides a range of information regarding the behaviour and distribution of the underlying series, which in turn proves to be useful for prediction.
Sudeep R. Bapat
doaj   +2 more sources

Gronwall-type integral inequalities with impulses on time scales

open access: yesAdvances in Difference Equations, 2011
In this article, some Gronwall-type integral inequalities with impulses on time scales are investigated. Our results extend some known dynamic inequalities on time scales, unify and extend some continuous inequalities and their corresponding discrete ...
Kang Ying   +4 more
doaj   +2 more sources

Social Media Impact on the ‘Cosmos’ Blockchain Ecosystem: State and Prospect

open access: yesData Science Journal
The proliferation of blockchain technology heralds transformative impacts across various sectors, offering decentralization, transparency, and enhanced security.
Ivan Pavlyshyn   +4 more
doaj   +2 more sources

Analyzing and forecasting financial series with singular spectral analysis

open access: yesDependence Modeling, 2022
Modern techniques for managing multidimensional stochastic processes that reflect the dynamics of unstable environments are proactive, which refers to decision making based on forecasting the system’s state vector evolution.
Makshanov Andrey   +2 more
doaj   +1 more source

Application of dynamic mode decomposition and compatible window-wise dynamic mode decomposition in deciphering COVID-19 dynamics of India

open access: yesComputational and Mathematical Biophysics, 2023
The COVID-19 pandemic recently caused a huge impact on India, not only in terms of health but also in terms of economy. Understanding the spatio-temporal patterns of the disease spread is crucial for controlling the outbreak.
Rana Kanav Singh, Kumari Nitu
doaj   +1 more source

Data analysis-based time series forecast for managing household electricity consumption

open access: yesDemonstratio Mathematica, 2022
Recently, electricity consumption forecasting has attracted much research due to its importance in our daily life as well as in economic activities. This process is seen as one of the ways to manage future electricity needs, including anticipating the ...
Bezzar Nour El-Houda   +3 more
doaj   +1 more source

A statistical study of COVID-19 pandemic in Egypt

open access: yesDemonstratio Mathematica, 2021
The spread of the COVID-19 started in Wuhan on December 31, 2019, and a powerful outbreak of the disease occurred there. According to the latest data, more than 165 million cases of COVID-19 infection have been detected in the world (last update May 19 ...
Radwan Taha
doaj   +1 more source

Bayesian GLS Identification of Autoregressive Moving Average Models

open access: yesالتجارة والتمويل, 2023
In this article, a new Bayesian approach is used to identify the autoregressive moving average models. Employing approximation error is the foundation of the suggested Bayesian methodology.
Howaida Elsayed
semanticscholar   +1 more source

On the Complex and Chaotic Dynamics of Standard Logistic Sine Square Map

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In this article, we set up a new nonlinear dynamical system which is derived by combining logistic map and sine square map in Mann orbit (a two step feedback process) for ameliorating the stability performance of chaotic system and name it Standard ...
Kumari Sudesh   +2 more
doaj   +1 more source

Periodically Correlated Space-Time Autoregressive Hilbertian Processes [PDF]

open access: yes, 2021
In this paper, we introduce periodically correlated space-time autoregressive processes with values in Hilbert spaces. The existence conditions and the strong law of large numbers are established. Moreover, we present an estimator for the autocorrelation
Hashemi, Mahmoud   +2 more
core   +2 more sources

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