Results 51 to 60 of about 1,308 (195)

A New Conway Maxwell–Poisson Liu Regression Estimator—Method and Application

Journal of Mathematics, 2022
Poisson regression is a popular tool for modeling count data and is applied in medical sciences, engineering and others. Real data, however, are often over or underdispersed, and we cannot apply the Poisson regression. To overcome this issue, we consider
Muhammad Nauman Akram, Muhammad Amin, Faiza Sami, Adam Braima Mastor, Omer Mohamed Egeh, Abdisalam Hassan Muse   +5 more
doaj   +1 more source

Execution of synthetic Bayesian model average for solar energy forecasting

IET Renewable Power Generation, 2022
Accurate photovoltaic (PV) forecasting is quite crucial in planning and in the regular operation of power system. Stochastic habit along with the high risks in PV signal uncertainty and a probabilistic forecasting model is required to address the ...
Oveis Abedinia, Mehdi Bagheri
doaj   +1 more source

The Touchard Process for Count Data with Dependent Increments

Mathematics
This paper introduces the Touchard process, a flexible two-parameter stochastic framework for modeling count data that depart from the classical Poisson assumptions.
Moisés Lima, Gladston Da Silva, Regina Da Fonseca, Raul Matsushita   +3 more
doaj   +1 more source

Intercontinental trends in functional and phylogenetic structure of stream fish assemblages

Ecology and Evolution, 2019
Understanding of community assembly has been improved by phylogenetic and trait‐based approaches, yet there is little consensus regarding the relative importance of alternative mechanisms and few studies have been done at large geographic and ...
Luke M. Bower, Kirk O. Winemiller
doaj   +1 more source

Handling Underdispersion in Calibrating Safety Performance Function at Urban, Four-Leg, Signalized Intersections

, 2011
Poisson basic assumption of equidispersion is often too much restrictive for crash count data; in fact this type of data has been found to often exhibit overdispersion.
MARINO, Roberta, CORRIERE, Ferdinando, GRANA', Anna, GIUFFRE', Orazio   +3 more
core   +1 more source

Automated detection of over- and under-dispersion in baseline tables in randomised controlled trials [version 2; peer review: 2 approved]

F1000Research, 2023
Background: Papers describing the results of a randomised trial should include a baseline table that compares the characteristics of randomised groups.
Adrian Barnett
doaj   +1 more source

Calibration of medium‐range temperature ensemble forecasts dependent on the time horizon: An assessment

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Numerical weather prediction output necessitates calibration, as weather model systems are unable to replicate the correct statistics of observations. Such processing is especially important when predicting extreme weather. Calibration methods function by learning from prediction inadequacies during a training phase and by exploiting this information ...
Dmitrij Japs, Oleksiy Boyko, Paolo Reggiani, Ezio Todini   +3 more
wiley   +1 more source

Robustness of serial clustering of extratropical cyclones to the choice of tracking method

Tellus: Series A, Dynamic Meteorology and Oceanography, 2016
Cyclone clusters are a frequent synoptic feature in the Euro-Atlantic area. Recent studies have shown that serial clustering of cyclones generally occurs on both flanks and downstream regions of the North Atlantic storm track, while cyclones tend to ...
Joaquim G. Pinto, Sven Ulbrich, Theodoros Economou, David B. Stephenson, Melanie K. Karremann, Len C. Shaffrey   +5 more
doaj   +1 more source

Statistical Monitoring of Multivariate Count Data From Real‐Time Particle Counters

Quality and Reliability Engineering International, EarlyView.
ABSTRACT In the pharmaceutical industry, production environments are monitored for bacterial contamination. Particle counters are increasingly investigated for real‐time monitoring of viable microorganisms using count data for different particle size intervals.
Mona Emampour, Pieta C. Boon, Edwin R. van den Heuvel   +2 more
wiley   +1 more source

Underdispersion of anti-herbivore defence traits and phylogenetic structure of cerrado tree species at fine spatial scale

, 2015
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Question Do species phylogeny and herbivory-related ...
Batalha, MA, Loiola, PP, Silva, DM, Silva, IA   +3 more
core   +1 more source