Results 51 to 60 of about 33,613 (202)

The Lognormal Distribution Is Characterized by Its Integer Moments

open access: yesMathematics
The lognormal moment sequence is considered. Using the fractional moments technique, it is first proved that the lognormal has the largest differential entropy among the infinite positively supported probability densities with the same lognormal-moments.
Pier Luigi Novi Inverardi, Aldo Tagliani
doaj   +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

Inference with the lognormal distribution [PDF]

open access: yes
Several estimators of the expectation, median and mode of the lognormal distribution are derived. They aim to be approximately unbiased, efficient, or have a minimax property in the class of estimators we introduce.
Nicholas Longford
core  

Lognormal vs Lavalette cdf.

open access: yes, 2016
Cumulative distribution function for lognormal and Lavalette distributions, being μ = 0 and σ = 0.1, 0.5 and 1 the parameters of the lognormal. The x axis is in logarithmic scale.
Yaning Yang (2318779)   +4 more
core   +1 more source

Comparison of lognormal population means [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
Comparisons of two lognormal population means are investigated. For large samples, the conventional test for significance of the population means is the ordinary Student t -test with normal critical value. By Chen and Loh’s result (Ann. Statist.
openaire   +1 more source

Common Correlation and Calibrating the Lognormal Forward Rate Model [PDF]

open access: yes
1997 three papers that introduced very similar lognormal diffusion processes for interest rates appeared virtuously simultaneously. These models, now commonly called the 'LIBOR models' are based on either lognormal diffusions of forward rates as in Brace,
Carol Alexandra
core  

DETERMINATION OF COEFFICIENT OF CAPITALIZATION FROM STATISTICAL DATA

open access: yesСтатистика и экономика, 2016
The article introduces a new stochastic model of the real estate market pricing, cost of rent, capitalization ratio appraisals based on a lognormal distribution.
M. . Laskin   +2 more
doaj   +1 more source

Inference for double Pareto lognormal queues with applications [PDF]

open access: yes
In this article we describe a method for carrying out Bayesian inference for the double Pareto lognormal (dPlN) distribution which has recently been proposed as a model for heavy-tailed phenomena. We apply our approach to inference for the dPlN/M/1 and M/
Michael P. Wiper   +3 more
core  

Flexible lognormal sum approximation method

open access: yes, 2005
A simple and novel method is presented to approximate the distribution of the sum of independent, but not necessarily identical, lognormal random variables, by the lognormal distribution.
Zhang, Jin   +5 more
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  

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