Results 31 to 40 of about 42,459 (144)

Deflating the Case for Zero Inflation

open access: yesQuarterly Review, 1990
This paper analyzes the U.S. congressional proposal to instruct the Federal Reserve to, in the next five years, lower inflation to zero from its current rate of around 5 percent. The paper concludes that, when other policy options are considered, the zero inflation policy is not advisable.
openaire   +4 more sources

Zero-Inflated Data Analysis Using Graph Neural Networks with Convolution

open access: yesComputers
Zero-inflated count data are characterized by an excessive frequency of zeros that cannot be adequately analyzed by a single distribution, such as Poisson or negative binomial.
Sunghae Jun
doaj   +1 more source

Droplet scRNA-seq is not zero-inflated [PDF]

open access: yesNature Biotechnology, 2019
Potential users of single cell RNA-sequencing often encounter a choice between high-throughput droplet based methods and high sensitivity plate based methods. In particular there is a widespread belief that single-cell RNA-sequencing will often fail to generate measurements for particular gene, cell pairs due to molecular inefficiencies, causing data ...
openaire   +3 more sources

Semiparametric zero-inflated Bernoulli regression with applications

open access: yesJournal of Applied Statistics, 2021
When the observed proportion of zeros in a data set consisting of binary outcome data is larger than expected under a regular logistic regression model, it is frequently suggested to use a zero-inflated Bernoulli (ZIB) regression model. A spline-based ZIB regression model is proposed to describe the potentially nonlinear effect of a continuous ...
Chin-Shang, Li, Minggen, Lu
openaire   +2 more sources

Estimation Parameters And Modelling Zero Inflated Negative Binomial

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2016
Regression analysis is used to determine relationship between one or several response variable (Y) with one or several predictor variables (X). Regression model between predictor variables and the Poisson distributed response variable is called Poisson ...
Cindy Cahyaning Astuti   +1 more
doaj   +1 more source

Risk-adjusted zero-inflated Poisson CUSUM charts for monitoring influenza surveillance data

open access: yesBMC Medical Informatics and Decision Making, 2021
Background The influenza surveillance has been received much attention in public health area. For the cases with excessive zeroes, the zero-inflated Poisson process is widely used.
Yueying Tan   +7 more
doaj   +1 more source

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

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 Poisson regression mixture model [PDF]

open access: yesComputational Statistics & Data Analysis, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yu, PLH, Li, WK, Lim, HK
openaire   +3 more sources

Introducing COZIGAM: An R Package for Unconstrained and Constrained Zero-Inflated Generalized Additive Model Analysis

open access: yesJournal of Statistical Software, 2010
Zero-inflation problem is very common in ecological studies as well as other areas. Nonparametric regression with zero-inflated data may be studied via the zero-inflated generalized additive model (ZIGAM), which assumes that the zero-inflated responses ...
Hai Liu, Kung-Sik Chan
doaj  

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