Results 41 to 50 of about 42,459 (144)
Response to a Defense of Zero Inflation
Quarterly Review, 1991 This essay distills the differences between zero inflation proponents and critics to three main questions: Can the central bank make a credible commitment to maintaining a stable price level? Should monetary policy be used to reduce the tax on capital income? And would reducing uncertainty about inflation produce significant social benefits? Proponents
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Structural zeroes and zero-inflated models.
Shanghai archives of psychiatry, 2014 In psychosocial and behavioral studies count outcomes recording the frequencies of the occurrence of some health or behavior outcomes (such as the number of unprotected sexual behaviors during a period of time) often contain a preponderance of zeroes because of the presence of 'structural zeroes' that occur when some subjects are not at risk for the ...
HE, Hua +3 more
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Maximum-Likelihood Estimation for the Zero-Inflated Polynomial-Adjusted Poisson Distribution
MathematicsWe propose the zero-inflated Polynomially Adjusted Poisson (zPAP) model. It extends the usual zero-inflated Poisson by multiplying the Poisson kernel with a nonnegative polynomial, enabling the model to handle extra zeros, overdispersion, skewness, and ...
Jong-Seung Lee, Hyung-Tae Ha
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On Zero-Inflated Alternative Hyper-Poisson Distribution
Statistica, 2021 Statistica, Vol. 81 No. 4 (2021)
Satheesh Kumar, Rakhi Ramachandran
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A Comparison of the Robust Zero-Inflated and Hurdle Models with an Application to Maternal Mortality
Mathematical and Computational ApplicationsThis study evaluates the performance of count regression models in the presence of zero inflation, outliers, and overdispersion using both simulated and real-world maternal mortality dataset.
Phelo Pitsha +2 more
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Contemporary Clinical Trials Communications, 2020 Background: The assessment of methods for analyzing over-dispersed zero inflated count outcome has received very little or no attention in stratified cluster randomized trials. In this study, we performed sensitivity analyses to empirically compare eight
Sayem Borhan +5 more
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Improving predictor selection for injury modelling methods in male footballers
BMJ Open Sport & Exercise Medicine, 2020 Objectives This objective of this study was to evaluate whether combining existing methods of elastic net for zero-inflated Poisson and zero-inflated Poisson regression methods could improve real-life applicability of injury prediction models in football.
Fraser Philp +4 more
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The Eclipse of the Goal of Zero Inflation [PDF]
History of Political Economy, 1997 William J. Barber's study of Alvin H. Hansen (1887-1975) emphasized the importance of the intellectual transformation that led to the "'Keynes-Hansen intellectual system that appeared to have compelling diagnostic and prescriptive power" (Barber 19X7.
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Using zero inflated models to analyze dental caries with many zeroes
Indian Journal of Dental Research, 2010 Aim: The study aimed to analyze and determine the factors associated with dental caries experience contains many zeros by zero inflated models. Design: A cross sectional design was employed using clinical examination and questionnaire with interview ...
Javali Shivalingappa, Pandit Parameshwar
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Caspian Journal of Health Research, 2018 Background: An important feature of Poisson distribution is the equality of mean and variance. However, additional zeroes in the data may cause over-dispersion in most cases, in which zero-inflated models are recommended.
Roghaye Farhadi Hassankiadeh +3 more
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