Results 21 to 30 of about 913,637 (282)

Modelling overdispersion with the normalized tempered stable distribution [PDF]

open access: yes, 2010
This paper discusses a multivariate distribution which generalizes the Dirichlet distribution and demonstrates its usefulness for modelling overdispersion in count data.
Griffin, Jim E.   +6 more
core   +1 more source

Models for Underreporting: A Bernoulli Sampling Approach for Reported Counts

open access: yesAustrian Journal of Statistics, 2016
Underreporting in register systems can be analyzed using a binomial approach, where both the size and the probability parameter have to be estimated. Parameter estimation fails when overdispersion is present.
Gerhard Neubauer   +2 more
doaj   +1 more source

Incidence‐data‐based species richness estimation via a Beta‐Binomial model

open access: yesMethods in Ecology and Evolution, 2022
Individual‐based abundance data and sample‐based incidence data are the two most widely used survey data formats to assess the species diversity in a target area, where the sample‐based incidence data are more available and efficient for estimating ...
Chun‐Huo Chiu
doaj   +1 more source

BETA-BINOMIAL MODEL IN SMALL AREA ESTIMATION USING HIERARCHICAL LIKELIHOOD APPROACH

open access: yesMedia Statistika, 2023
Small Area Estimation is a statistical method used to estimate parameters in sub-populations with small or even no sample sizes. This research aims to evaluate the Beta-Binomial model's performance for estimating small areas at the area level.
Etis Sunandi   +3 more
doaj   +1 more source

Empirical distributions and fitted beta-binomial models for vegetable consumption.

open access: yes, 2023
Empirical distributions and fitted beta-binomial models for vegetable consumption.
Aleksandra Gorzycka-Sikora (14838515)   +2 more
core   +1 more source

Stevia rebaudiana (Bert) Bertoni: regression models with mixed effects for investigating seed germination data

open access: yesActa Scientiarum. Agronomy, 2018
We investigated regression models with mixed effects using generalized linear statistics to evaluate germination data from Stevia rebaudiana (Bert) Bertoni.
Edilenia Queiroz Pereira   +3 more
doaj   +1 more source

Migraine day frequency in migraine prevention: longitudinal modelling approaches

open access: yesBMC Medical Research Methodology, 2019
Background Health economic models are critical tools to inform reimbursement agencies on health care interventions. Many clinical trials report outcomes using the frequency of an event over a set period of time, for example, the primary efficacy outcome ...
Gian Luca Di Tanna   +7 more
doaj   +1 more source

Applications of Beta Negative Binomial Distribution and Laguerre Polynomials on Ozaki Bi-Close-to-Convex Functions

open access: yesAxioms, 2022
In the present paper, due to beta negative binomial distribution series and Laguerre polynomials, we investigate a new family FΣ(δ,η,λ,θ;h) of normalized holomorphic and bi-univalent functions associated with Ozaki close-to-convex functions.
Isra Al-Shbeil   +3 more
doaj   +1 more source

Model to improve specificity for identification of clinically-relevant expanded T cells in peripheral blood.

open access: yesPLoS ONE, 2019
Current methods to quantify T-cell clonal expansion only account for variance due to random sampling from a highly diverse repertoire space. We propose a beta-binomial model to incorporate time-dependent variance into the assessment of differentially ...
Julie Rytlewski   +6 more
doaj   +1 more source

Bernstein-type approximation using the beta-binomial distribution

open access: yesStatistica, 2013
The Bernstein-type approximation using the beta-binomial distribution is proposed and studied. Both univariate and multivariate Bernstein-type approximations are studied. The uniform convergence and the degree of approximation are studied.
Andrea Pallini
doaj   +1 more source

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