Results 281 to 290 of about 25,561,218 (304)

Zero-inflated Data Generation Processes

2016
The estimation of the integrated volatility implies two phenomenons, (1) the estimation characteristics coming with the selected volatility estimator, and (2) the zero-inflation coming with the ultra-high-frequency measurement, meaning the agglomerated appearance of zeros.
openaire   +1 more source

Adjusting for covariates in zero-inflated gamma and zero-inflated log-normal models for semicontinuous data

2018
Semicontinuous data consist of a combination of a point-mass at zero and a positive skewed distribution. This type of non-negative data distribution is found in data from many fields, but presents unique challenges for analysis. Specifically, these data cannot be analyzed using positive distributions, but distributions that are unbounded are also ...
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Semiparametric regression analysis of zero-inflated data

2018
Zero-inflated data abound in ecological studies as well as in other scientific and quantitative fields. Nonparametric regression with zero-inflated response may be studied via the zero-inflated generalized additive model (ZIGAM). ZIGAM assumes that the conditional distribution of the response variable belongs to the zero-inflated 1-parameter ...
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Type I multivariate zero-inflated COM–Poisson regression model

Biometrical Journal, 2022
Katiane S Conceição, Marinho G Andrade, Rogério Alves Santana   +2 more
exaly  

Zero-Inflated Models and Estimation in Zero-Inflated Poisson Distribution

Communications in Statistics Part B: Simulation and Computation, 2018
Kirtee K Kamalja
exaly  

Zero-Inflated Bell Regression Models for Count Data

Journal of Applied Statistics, 2020
Artur José Lemonte, Germán Moreno-Arenas   +1 more
exaly  

Generalized Additive Modelling and Zero Inflated Count Data

Ecological Modelling, 2002
Simon C Barry, A H Welsh
exaly  

Full Bayes Poisson Gamma, Poisson Lognormal, and Zero Inflated Random Effects Models: Comparing the Precision of Crash Frequency Estimates

Accident Analysis and Prevention, 2013
Jonathan Aguero-Valverde
exaly  

Count Data and Zero Inflation

2018
openaire   +1 more source

Score Test for Testing Zero-Inflated Poisson Regression Against Zero-Inflated Generalized Poisson Alternatives

Journal of Applied Statistics, 2013
Noriszura Ismail, Hossein Zamani
exaly