Results 91 to 100 of about 222,822 (188)

"On a limiting quasi-multinomial distribution" [PDF]

A random clustering distribution is useful for modeling count data. The present article derives a new distribution of this type from the Lagrangian Poisson distribution, based on the result that any infinitely divisible distribution over nonnegative ...
Nobuaki Hoshino
core  

Secure transmission enhancement in shotgun cellular systems using transmitter-side information over correlated shadowing channels

Ain Shams Engineering Journal
Shotgun cellular systems (SCSs) are stochastic models of wireless networks where base stations (BSs) are randomly deployed across spatial settings of dimension one, two, or three, under a Poisson point process (PPP).
Ali Mohammad Khodadoust, Mario Eduardo Rivero-Ángeles, Víctor Barrera-Figueroa   +2 more
doaj   +1 more source

Influencing Factor Analysis Based on Jointly Modeling for Freeway Rear-End and Sideswipe Crashes Considering Spatial and Site Correlations

Applied Sciences
As the primary collision patterns on China’s freeways, in-depth exploration of the influencing factors of rear-end and sideswipe crashes has long been crucial for implementing targeted countermeasures.
Jianluo Wei, Lulu Zhou, Mingjie Feng, Jing Zhao, Yu Lin   +4 more
doaj   +1 more source

Bayes reliability measures of Lognormal and inverse Gaussian distributions under ML-II ε-contaminated class of prior distributions [PDF]

In this paper we employ ML-II ε-contaminated class of priors to study the sensitivity of Bayes Reliability measures for an Inverse Gaussian (IG) distribution and Lognormal (LN) distribution to misspecification in the prior.
Sinha, Pankaj, Jayaraman, Prabha
core  

Intermittent Magnetic Rotations in the Solar Wind

The Astrophysical Journal
Solar-wind streams are turbulent and dominated by changes of the magnetic-field direction at almost constant field intensity. The time evolution of rotations undergone by the magnetic-field vector over a given timescale is modeled on the basis of the ...
N. H. Bian, Gang Li, S. Y. Huang, A. Chian   +3 more
doaj   +1 more source

On robustness of maximum likelihood estimates for Poisson-lognormal models

Mixed Poisson regression models, a class of generalized linear mixed models, are commonly used to analyze count data that exhibit overdispersion. Because inference for these models can be computationally difficult, simplifying distributional assumptions ...
Smith, P. J., Weems, K. S.
core  

Poisson and Hochschild cohomology and the semiclassical limit [PDF]

, 2013
Let $B$ be a quantum algebra possessing a semiclassical limit $A$. We show that under certain hypotheses $B^e$ can be thought of as a deformation of the Poisson enveloping algebra of $A$, and we give a criterion for the Hochschild cohomology of $B$ to
Towers, Matthew
core  

Bayesian Poisson‐Lognormal Regression With Compositional Effect Shares for Multivariate Count Data

Environmetrics
ABSTRACT Multivariate count data are central in community ecology and related fields, where interest lies in how environmental gradients and management actions jointly shape the abundances of many taxa. The Poisson‐lognormal (PLN) model is a natural workhorse in this setting, accommodating overdispersion and cross‐
openaire   +1 more source

Mixed Poisson distributions tail equivalent to their mixing distributions

A mixed Poisson distribution can have an upper tail asymptotically equal to the upper tail of its mixing distribution. Two broad classes of mixing distributions that generate mixed Poisson distributions with this property are identified: unbounded, non ...
Perline, Richard
core  

The functional form of the lognormal distribution as a sum of decaying exponential and sinusoidal terms applied to the isometric pinch force of human fingers

, 2006
The transient data of the pinch force produced between the human forefinger and thumb have been shown to fit the functional form of the well-known lognormal density function.
Chappell, P H, Taylor, P N
core   +1 more source