Results 11 to 20 of about 450,140 (296)

The Large Arcsine Exponential Dispersion Model—Properties and Applications to Count Data and Insurance Risk

open access: yesMathematics, 2022
The large arcsine exponential dispersion model (LAEDM) is a class of three-parameter distributions on the non-negative integers. These distributions show the specific characteristics of being leptokurtic, zero-inflated, overdispersed, and skewed to the ...
Shaul K. Bar-Lev, Ad Ridder
doaj   +1 more source

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

Exponential dispersion models for overdispersed zero-inflated count data [PDF]

open access: yesCommunications in Statistics - Simulation and Computation, 2021
We consider three new classes of exponential dispersion models of discrete probability distributions which are defined by specifying their variance functions in their mean value parameterization. In a previous paper (Bar-Lev and Ridder, 2020a), we have developed the framework of these classes and proved that they have some desirable properties. Each of
Shaul K. Bar-Lev, Ad Ridder
openaire   +2 more sources

Spreading of Lagrangian Particles in the Black Sea: A Comparison between Drifters and a High-Resolution Ocean Model

open access: yesRemote Sensing, 2021
The Lagrangian dispersion statistics of the Black Sea are estimated using satellite-tracked drifters, satellite altimeter data and a high-resolution ocean model. Comparison between the in-situ measurements and the model reveals good agreement in terms of
Maher Bouzaiene   +4 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

Spatial Tweedie exponential dispersion models

open access: yesScandinavian Actuarial Journal, 2020
This paper proposes a general modeling framework that allows for uncertainty quantification at the individual covariate level and spatial referencing, operating withing a double generalized linear model (DGLM). DGLMs provide a general modeling framework allowing dispersion to depend in a link-linear fashion on chosen covariates.
Halder, Aritra   +3 more
openaire   +3 more sources

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

Optimal design of step-stress accelerated degradation tests based on the Tweedie exponential dispersion process

open access: yesReliability Engineering & System Safety, 2022
: In this paper, we are interested in the optimization of step-stress accelerated degradation test plan when the degradation path follows the Tweedie exponential dispersion process which has been shown to be an important family in degradation analysis ...
Weian Yan   +3 more
semanticscholar   +1 more source

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