Results 21 to 30 of about 8,311,668 (271)

Inferring single- and multi-species distributional aggregation using quadrat sampling

open access: yesEcological Indicators, 2023
Ecologists often employ cost-effective strategies such as quadrat sampling for field-based biodiversity assessments. While the negative binomial distribution (NBD) is widely used to characterize quadrat sampling-derived biodiversity data in single ...
Ziyan Liao   +3 more
doaj   +1 more source

Markov Cohort State-Transition Model: A Multinomial Distribution Representation. [PDF]

open access: yes, 2022
HIGHLIGHTS A Markov model simulates the average experience of a cohort of patients.Monte Carlo simulation, the standard approach for estimating the variance, is computationally expensive.A multinomial distribution provides an exact representation of a
Berns, Cassandra   +3 more
core   +3 more sources

Asymptotic comparison of negative multinomial and multivariate normal experiments [PDF]

open access: yes, 2023
This note presents a refined local approximation for the logarithm of the ratio between the negative multinomial probability mass function and a multivariate normal density, both having the same mean-covariance structure.
Genest, Christian, Ouimet, Frédéric
core   +1 more source

Masses of Negative Multinomial Distributions: Application to Polarimetric Image Processing [PDF]

open access: yesJournal of Probability and Statistics, 2013
This paper derives new closed-form expressions for the masses of negative multinomial distributions. These masses can be maximized to determine the maximum likelihood estimator of its unknown parameters. An application to polarimetric image processing is investigated. We study the maximum likelihood estimators of the polarization degree of polarimetric
Philippe Bernardoff   +2 more
openaire   +5 more sources

Non-normal Distributions Commonly Used in Health, Education, and Social Sciences: A Systematic Review

open access: yesFrontiers in Psychology, 2017
Statistical analysis is crucial for research and the choice of analytical technique should take into account the specific distribution of data. Although the data obtained from health, educational, and social sciences research are often not normally ...
Roser Bono   +5 more
doaj   +1 more source

Rural livelihood diversification and income inequality in local government area Akinyele, Ibadan, Oyo state, Nigeria [PDF]

open access: yesJournal of Agricultural Sciences (Belgrade), 2014
The pattern of income distribution has been a major concern in the developing world. This is because high levels of income inequality are likely to create a hostile atmosphere for economic growth and development.
Adepoju Abimbola O., Oyewole Olaniyi O.
doaj   +1 more source

Rapid shifts in the age-specific burden of malaria following successful control interventions in four regions of Uganda

open access: yesMalaria Journal, 2020
Background Malaria control using long-lasting insecticidal nets (LLINs) and indoor residual spraying of insecticide (IRS) has been associated with reduced transmission throughout Africa.
Simon P. Kigozi   +16 more
doaj   +1 more source

Negative binomial and multinomial states: Probability distributions and coherent states [PDF]

open access: yesJournal of Mathematical Physics, 1997
Following the relationship between probability distribution and coherent states, for example the well known Poisson distribution and the ordinary coherent states and relatively less known one of the binomial distribution and the su(2) coherent states, we propose interpretation of su(1,1) and su(r,1) coherent states in terms of probability theory.
Fu, Hong-Chen, Sasaki, Ryu
openaire   +2 more sources

Burden and predictors of Staphylococcus aureus and S. pseudintermedius infections among dogs presented at an academic veterinary hospital in South Africa (2007–2012) [PDF]

open access: yesPeerJ, 2017
Background Staphylococci are commensals of the mucosal surface and skin of humans and animals, but have been implicated in infections such as otitis externa, pyoderma, urinary tract infections and post-surgical complications.
Daniel N. Qekwana   +3 more
doaj   +2 more sources

Single-Cell Transcriptome Data Clustering via Multinomial Modeling and Adaptive Fuzzy K-Means Algorithm

open access: yesFrontiers in Genetics, 2020
Single-cell RNA sequencing technologies have enabled us to study tissue heterogeneity at cellular resolution. Fast-developing sequencing platforms like droplet-based sequencing make it feasible to parallel process thousands of single cells effectively ...
Liang Chen   +4 more
doaj   +1 more source

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