Results 31 to 40 of about 4,654,306 (147)

SPATIAL AUTOREGRESSIVE (SAR) MODEL WITH ENSEMBLE LEARNING-MULTIPLICATIVE NOISE WITH LOGNORMAL DISTRIBUTION (CASE ON POVERTY DATA IN EAST JAVA)

open access: yesMedia Statistika, 2021
The regression model that can be used to model spatial data is Spatial Autoregressive (SAR) model. The level of accuracy of the estimated parameters of the SAR model can be improved, especially to provide better results and can reduce the error rate by ...
Dewi Retno Sari Saputro   +2 more
doaj   +1 more source

Bayesian Inference for Median of the Lognormal Distribution [PDF]

open access: yes, 2016
Lognormal distribution has many applications. The past research papers concentrated on the estimation of the mean of this distribution. This paper develops credible interval for the median of the lognormal distribution. The estimated coverage probability
Rao, K. Aruna, D\u27Cunha, Juliet Gratia
core   +1 more source

Closed-form Distribution and Analysis of a Combined Nakagami-lognormal Shadowing and Unshadowing Fading Channel

open access: yesJournal of Telecommunications and Information Technology, 2016
The realistic wireless channels face combined (time shared) Nakagami-lognormal shadowing and unshadowing fading because of time varying nature of radio channel and mobile user.
Rupender Singh, Meenakshi Rawat
doaj   +1 more source

Two-Piece Multivariate lognormal distribution [PDF]

open access: yes, 2014
We have extended the univariate bilognormal distribution to two piece multivariate lognormal distribution. The density function of two piece multivariate lognormal distribution is given and the maximum likelihood estimates of the parameters when the ...
Bhavsar, C. D., shah, Parag B.
core   +1 more source

A new subgrid-scale representation of hydrometeor fields using a multivariate PDF [PDF]

open access: yesGeoscientific Model Development, 2016
The subgrid-scale representation of hydrometeor fields is important for calculating microphysical process rates. In order to represent subgrid-scale variability, the Cloud Layers Unified By Binormals (CLUBB) parameterization uses a multivariate ...
B. M. Griffin, V. E. Larson
doaj   +1 more source

Fitting the Modified-Power-Lognormal to the Sum of Independent Lognormals Distribution [PDF]

open access: yesGLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, 2009
We propose a new method for calculating a tight approximation to the distribution of the sum of independent lognormal random variables. We make use of a three-parameter modified-power-lognormal distribution function as the approximating distribution.
Sebastian S. Szyszkowicz   +1 more
openaire   +2 more sources

Quantitative laboratory results: normal or lognormal distribution?

open access: yesJournal of Laboratory Medicine, 2020
The identification of a suitable distribution model is a prerequisite for the parametric estimation of reference intervals and other statistical laboratory tasks. Classification of normal vs.
Klawonn Frank   +2 more
doaj   +1 more source

On the Discrimination between the Inverse Gaussian and Lognormal Distributions [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2008
Both inverse Gaussian and lognormal distributions have been used among many well-known failure time distributions with positively skewed data. The problem of selecting between them is considered. The logarithm of maximum likelihood ratio has been used as
Zakaria Y. AL-Jammal
doaj   +1 more source

Weighted Sum of Correlated Lognormals: Convolution Integral Solution [PDF]

open access: yes, 2011
Probability density function (pdf) for sum of n correlated lognormal variables is deducted as a special convolution integral. Pdf for weighted sums (where weights can be any real numbers) is also presented.
Nagy, Tamás
core   +1 more source

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

open access: yes, 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

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