Results 1 to 10 of about 41,488 (167)

A Poisson-Gamma Model for Zero Inflated Rainfall Data [PDF]

open access: yesJournal of Probability and Statistics, 2018
Rainfall modeling is significant for prediction and forecasting purposes in agriculture, weather derivatives, hydrology, and risk and disaster preparedness.
Nelson Christopher Dzupire   +2 more
doaj   +3 more sources

Zero to k Inflated Poisson Regression Models with Applications

open access: yesJournal of Statistical Theory and Applications (JSTA), 2023
In the count data set, the frequency of some points may occur more than expected under the standard data analysis models. Indeed, in many situations, the frequencies of zero and of some other points tend to be higher than those of the Poisson.
Hadi Saboori, Mahdi Doostparast
doaj   +2 more sources

Compositional zero-inflated network estimation for microbiome data [PDF]

open access: yesBMC Bioinformatics, 2020
Background The estimation of microbial networks can provide important insight into the ecological relationships among the organisms that comprise the microbiome.
Min Jin Ha   +4 more
doaj   +3 more sources

Regression models for count data with excess zeros: A comparison using survey data [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2023
Presence of excess zeros and the distributions are major concern in modeling count data. Zero inflated and hurdle models are regression techniques which can handle zero inflated count data.
Bhaskar, Adhin   +3 more
doaj   +1 more source

Zero-inflated Modified Borel-Tanner Regression Model for Count Data

open access: yesAustrian Journal of Statistics, 2022
By starting from the one-parameter Modified Borel-Tanner distribution proposed recently in the statistic literature, we introduce the zero-inflated Modified Borel-Tanner distribution. Additionally, on the basis of the proposed zero-inflated distribution,
Anwar Hassan   +2 more
doaj   +1 more source

A comparison of zero-inflated and hurdle models for modeling zero-inflated count data [PDF]

open access: yesJournal of Statistical Distributions and Applications, 2021
AbstractCounts data with excessive zeros are frequently encountered in practice. For example, the number of health services visits often includes many zeros representing the patients with no utilization during a follow-up time. A common feature of this type of data is that the count measure tends to have excessive zero beyond a common count ...
openaire   +2 more sources

EM Estimation for Zero- and k-Inflated Poisson Regression Model

open access: yesComputation, 2021
Count data with excessive zeros are ubiquitous in healthcare, medical, and scientific studies. There are numerous articles that show how to fit Poisson and other models which account for the excessive zeros. However, in many situations, besides zero, the
Monika Arora, N. Rao Chaganty
doaj   +1 more source

Application of Mixture Models for Doubly Inflated Count Data

open access: yesAnalytics, 2023
In health and social science and other fields where count data analysis is important, zero-inflated models have been employed when the frequency of zero count is high (inflated).
Monika Arora, N. Rao Chaganty
doaj   +1 more source

A Zero‐Inflated Regression Model for Grouped Data [PDF]

open access: yesOxford Bulletin of Economics and Statistics, 2014
AbstractWe introduce the (panel) zero‐inflated interval regression (ZIIR) model, which is ideally suited when data are in the form of groups, and there is an ‘excess’ of zero observations. We apply our new modelling framework to the analysis of visits to the general practitioner (GP) using individual‐level data from the British Household Panel Survey ...
Brown, S.   +4 more
openaire   +4 more sources

Zero-Inflated Text Data Analysis using Generative Adversarial Networks and Statistical Modeling

open access: yesComputers, 2023
In big data analysis, various zero-inflated problems are occurring. In particular, the problem of inflated zeros has a great influence on text big data analysis.
Sunghae Jun
doaj   +1 more source

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