Results 11 to 20 of about 425,593 (212)

INGARCH-based fuzzy clustering of count time series with a football application

open access: yesMachine Learning with Applications, 2022
Although there are many contributions in the time series clustering literature, few studies still deal with count time series data. This paper aims to develop a fuzzy clustering procedure for count time series data.
Roy Cerqueti   +4 more
doaj   +1 more source

Count Data Time Series Modelling in Julia—The CountTimeSeries.jl Package and Applications

open access: yesEntropy, 2021
A new software package for the Julia language, CountTimeSeries.jl, is under review, which provides likelihood based methods for integer-valued time series.
Manuel Stapper
doaj   +1 more source

Count time series with excess zeros: A Bayesian perspective using zero-adjusted distributions

open access: yesSemina: Ciências Exatas e Tecnológicas, 2022
Models for count data which are temporally correlated have been studied using many conditional distributions, such as the Poisson distribution, and the insertion of different dependence structures. Nonetheless, excess of zeros and over dispersion may be
Luiz Otávio de Oliveira Pala   +2 more
doaj   +1 more source

Binomial Thinning Integer-Valued AR (1) with Poisson – α Fold Zero Modified Geometric Innovations [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2022
Real count data time series often show the phenomenon of the overdispersion. In this paper, we introduce the first-order integer-valued autoregressive process.
Maryam Shalbaf   +2 more
doaj   +1 more source

Higher-Order INAR Model Based on a Flexible Innovation and Application to COVID-19 and Gold Particles Data

open access: yesAxioms, 2023
INAR models have the great advantage of being able to capture the conditional distribution of a count time series based on their past observations, thus allowing it to be tailored to meet the unique characteristics of count data.
Fatimah E. Almuhayfith   +5 more
doaj   +1 more source

On Discrete Poisson–Mirra Distribution: Regression, INAR(1) Process and Applications

open access: yesAxioms, 2022
Several pieces of research have spotlighted the importance of count data modelling and its applications in real-world phenomena. In light of this, a novel two-parameter compound-Poisson distribution is developed in this paper.
Radhakumari Maya   +4 more
doaj   +1 more source

On Outliers and Interventions in Count Time Series following GLMs

open access: yesAustrian Journal of Statistics, 2014
We discuss the analysis of count time series following generalised linear models in the presence of outliers and intervention effects. Different modifications of such models are formulated which allow to incorporate, detect and to a certain degree ...
Roland Fried   +4 more
doaj   +1 more source

Reaction to the COVID-19 pandemic in Seoul with biostatistics

open access: yesInfectious Disease Modelling, 2022
This paper discusses our collaboration work with government officers in the health department of Seoul during the COVID-19 pandemic. First, we focus on short-term forecasting for the number of new confirmed cases and severe cases.
Seungpil Jung   +3 more
doaj   +1 more source

Monitoring Count Time Series in R: Aberration Detection in Public Health Surveillance

open access: yesJournal of Statistical Software, 2016
Public health surveillance aims at lessening disease burden by, e.g., timely recognizing emerging outbreaks in case of infectious diseases. Seen from a statistical perspective, this implies the use of appropriate methods for monitoring time series of ...
Maëlle Salmon   +2 more
doaj   +1 more source

A Systematic Review of INGARCH Models for Integer-Valued Time Series

open access: yesEntropy, 2023
Count time series are widely available in fields such as epidemiology, finance, meteorology, and sports, and thus there is a growing demand for both methodological and application-oriented research on such data.
Mengya Liu   +3 more
doaj   +1 more source

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