Results 11 to 20 of about 14,393,463 (300)

Series evaluation of Tweedie exponential dispersion model densities [PDF]

open access: yesStatistics and Computing, 2005
Exponential dispersion models, which are linear exponential families with a dispersion parameter, are the prototype response distributions for generalized linear models. The Tweedie family comprises those exponential dispersion models with power mean-variance relationships.
Dunn, Peter K., Smyth, Gordon K.
openaire   +4 more sources

Statistical procedures based on exponential scores [PDF]

open access: yes, 1983
Many statistical models have been proposed in which underlying exponential distributions are assumed. Applications of such models occur in a large number of areas, for example in reliability and life-testing investigations and in the study of the ...
Young, D H
core   +6 more sources

An analysis of spatial dispersal in Ceratitis capitata in an orchard of the ‘Palmer’ mango using McPhail traps1 [PDF]

open access: yesRevista Ciência Agronômica, 2023
The aim of this study was to analyse patterns of spatial dispersal in Ceratitis capitata using two types of attractive traps and propose a predictive model of pest dispersal with the aim of determining management zones for decision-making. The experiment
Ingrid Thalia Prado de Castro   +7 more
doaj   +1 more source

Modeling a Wave on Mild Sloping Bottom Topography and Its Dispersion Relation Approximation

open access: yesKubik, 2022
Linear wave theory is a simple theory that researchers and engineers often use to study a wave in deep, intermediate, and shallow water regions. Many researchers mostly used it over the horizontal flat seabed, but in actual conditions, sloping seabed ...
Faizal Ade Rahmahuddin Abdullah   +1 more
doaj   +1 more source

Tweedie models for Malaysia rainfall simulations with seasonal variabilities

open access: yesJournal of Water and Climate Change, 2023
This study aims to evaluate the suitability of the Tweedie generalised linear model for characterising monthly rainfall patterns across 18 meteorological stations in Peninsular Malaysia.
Jamaludin Suhaila
doaj   +1 more source

Tail Conditional Expectations for Exponential Dispersion Models [PDF]

open access: yesASTIN Bulletin, 2005
There is a growing interest in the use of the tail conditional expectation as a measure of risk. For an institution faced with a random loss, the tail conditional expectation represents the conditional average amount of loss that can be incurred in a fixed period, given that the loss exceeds a specified value.
Landsman, Zinoviy, Valdez, Emiliano A.
openaire   +2 more sources

Derivation of optical solitons and other solutions for nonlinear Schrödinger equation using modified extended direct algebraic method

open access: yesAlexandria Engineering Journal, 2023
Optical solitons is one of the fastest growing areas of research in the field of nonlinear fiber optics. In the current work, the modified extended direct algebraic method is implemented to obtain optical solitons for the nonlinear Schrödinger’s equation
Mohamed S. Ghayad   +3 more
doaj   +1 more source

Solution of One-Dimensional Contaminant Flow Problem Incorporating the Zero Order Source Parameter by Method of Eigen-Functions Expansion

open access: yesJournal of Applied Sciences and Environmental Management, 2022
A semi – analytical study of a time dependent one – dimensional advection – dispersion equation (ADE) with Neumann homogenous boundary conditions for studying contaminants flow in a homogenous porous media is presented. The governing equation which is a
O.R. Jimoh, B.N. Shuaibu
doaj   +1 more source

New exponential dispersion models for count data: the ABM and LM classes [PDF]

open access: yesESAIM: Probability and Statistics, 2021
In their fundamental paper on cubic variance functions (VFs), Letac and Mora (The Annals of Statistics, 1990) presented a systematic, rigorous and comprehensive study of natural exponential families (NEFs) on the real line, their characterization through their VFs and mean value parameterization.
Bar-Lev, Shaul K., Ridder, Ad
openaire   +4 more sources

Solution of Two-Dimensional Solute Transport Model for Heterogeneous Porous Medium Using Fractional Reduced Differential Transform Method

open access: yesAxioms, 2023
This study contains a two-dimensional mathematical model of solute transport in a river with temporally and spatially dependent flow, explicitly focusing on pulse-type input point sources with a fractional approach.
Manan A. Maisuria   +2 more
doaj   +1 more source

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