Results 11 to 20 of about 14,618,835 (284)

A Gamma-Poisson Mixture Topic Model for Short Text [PDF]

open access: yesMathematical Problems in Engineering, 2020
Most topic models are constructed under the assumption that documents follow a multinomial distribution. The Poisson distribution is an alternative distribution to describe the probability of count data.
Jocelyn Mazarura   +2 more
semanticscholar   +3 more sources

A Bayesian-Deep Learning Model for Estimating COVID-19 Evolution in Spain

open access: yesMathematics, 2021
This work proposes a semi-parametric approach to estimate the evolution of COVID-19 (SARS-CoV-2) in Spain. Considering the sequences of 14-day cumulative incidence of all Spanish regions, it combines modern Deep Learning (DL) techniques for analyzing ...
Stefano Cabras
doaj   +1 more source

Generalisasi Algoritma Thinning Process pada Proses Poisson Majemuk dengan Komponen Proses Poisson Nonhomogen dan Distribusi Gamma

open access: yesMUST: Journal of Mathematics Education, Science and Technology, 2020
Proses Poisson majemuk (compound Poissonprocess (CPP)) adalah salah satu pengembangan dari teori stokastik yang digunakan untuk memodelkan fenomena nyata.
Syarif Abdullah   +8 more
doaj   +1 more source

Analysis of correlated count data using generalised linear mixed models exemplified by field data on aggressive behaviour of boars [PDF]

open access: yesArchives Animal Breeding, 2015
Population-averaged and subject-specific models are available to evaluate count data when repeated observations per subject are present. The latter are also known in the literature as generalised linear mixed models (GLMM).
N. Mielenz, J. Spilke, E. von Borell
doaj   +1 more source

Progression of HIV Disease Among Patients on ART in Ethiopia: Application of Longitudinal Count Models

open access: yesFrontiers in Public Health, 2020
Although the world has been fighting HIV disease in unity and patients are getting antiretroviral therapy treatment, HIV disease continues to be a serious health issue for some parts of the world.
Belay Desyebelew Andualem   +2 more
doaj   +1 more source

A Poisson–Gamma model for analysis of ecological non-negative continuous data

open access: yesEnvironmental and Ecological Statistics, 2013
The statistical analysis of continuous data that is non-negative is a common task in quantitative ecology. An example, and our motivation, is the weight of a given fish species in a fish trawl.
S. Foster, M. Bravington
semanticscholar   +2 more sources

Exponential families of mixed Poisson distributions [PDF]

open access: yes, 2006
If I=(I1,…,Id) is a random variable on [0,∞)d with distribution μ(dλ1,…,dλd), the mixed Poisson distribution MP(μ) on View the MathML source is the distribution of (N1(I1),…,Nd(Id)) where N1,…,Nd are ordinary independent Poisson processes which are also ...
Letac, G.   +9 more
core   +1 more source

PERSAMAAN DIFERENSIAL ORNSTEIN-UHLENBECK DALAM PERAMALAN HARGA SAHAM

open access: yesMedia Statistika, 2020
Geometric Brownian motion is one of the most widely used stock price model. One of the assumptions that is filled with stock return volatility is constant. Gamma Ornstein-Uhlenbeck process a model to describe volatility in finance.
Amam Taufiq Hidayat, Subanar Subanar
doaj   +1 more source

E-Bayesian Estimation of Hierarchical Poisson-Gamma Model on the Basis of Restricted and Unrestricted Parameter Spaces

open access: yesComplexity, 2023
In this study, we use the idea of the hierarchical model (HM) to estimate an unknown parameter of the hierarchical Poisson-Gamma model using the E-Bayesian (E-B) theory.
Azeem Iqbal   +5 more
doaj   +1 more source

Methods to evaluate the effectiveness of advanced stop lines for motorcycles in improving road safety

open access: yesMethodsX, 2021
In Barcelona, Advanced Stop Lines (ASL) for motorcycles, were implemented since 2009. This paper aims to describe the process followed in determining the best statistical model to analyse the effectiveness of ASL in preventing road traffic injury ...
Elena Santamariña-Rubio   +1 more
doaj   +1 more source

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