Results 11 to 20 of about 104,920 (275)

Lognormal Lorenz and normal receiver operating characteristic curves as mirror images [PDF]

open access: yesRoyal Society Open Science, 2015
The Lorenz curve for assessing economic inequality depicts the relation between two cumulative distribution functions (CDFs), one for the distribution of incomes or wealth and the other for their first-moment distribution.
R. John Irwin, Michael J. Hautus
doaj   +1 more source

Lognormal firing rate distribution reveals prominent fluctuation–driven regime in spinal motor networks

open access: yeseLife, 2016
When spinal circuits generate rhythmic movements it is important that the neuronal activity remains within stable bounds to avoid saturation and to preserve responsiveness. Here, we simultaneously record from hundreds of neurons in lumbar spinal circuits
Peter C Petersen, Rune W Berg
doaj   +1 more source

Firm size and economic concentration: An analysis from a lognormal expansion.

open access: yesPLoS ONE, 2021
This paper studies the distribution of the firm size for the Colombian economy showing evidence against the Gibrat's law, which assumes a stable lognormal distribution.
Lina M Cortés   +2 more
doaj   +1 more source

Simple accurate lognormal approximation to lognormal sums

open access: yesElectronics Letters, 2005
A simple accurate lognormal approximation to the sum of independent non-identical lognormal variates is derived by matching the first two moments of the inverse exact sum with those of the inverse lognormal approximation. Sample examples are given to illustrate the excellent agreement between exact and approximate sum statistics.
J.C.S. Santos Filho   +2 more
openaire   +1 more source

Neuronal Population Activity in Spinal Motor Circuits: Greater Than the Sum of Its Parts

open access: yesFrontiers in Neural Circuits, 2017
The core elements of stereotypical movements such as locomotion, scratching and breathing are generated by networks in the lower brainstem and the spinal cord.
Rune W. Berg
doaj   +1 more source

Random phenotypic variation of yeast (Saccharomyces cerevisiae) single-gene knockouts fits a double pareto-lognormal distribution. [PDF]

open access: yesPLoS ONE, 2012
Distributed robustness is thought to influence the buffering of random phenotypic variation through the scale-free topology of gene regulatory, metabolic, and protein-protein interaction networks.
John H Graham, Daniel T Robb, Amy R Poe
doaj   +1 more source

Description of the Joint Probability of Significant Wave Height and Mean Wave Period

open access: yesJournal of Marine Science and Engineering, 2022
The bivariate probability distribution of significant wave heights and mean wave periods has an indispensable guiding role in the implementation of offshore engineering, which has attracted great attention.
Mingwen Zhao, Xiaodong Deng, Jichao Wang
doaj   +1 more source

Correlated connectivity and the distribution of firing rates in the neocortex [PDF]

open access: yes, 2008
Two recent experimental observations pose a challenge to many cortical models. First, the activity in the auditory cortex is sparse, and firing rates can be described by a lognormal distribution.
Hromadka, Tomas   +2 more
core   +2 more sources

Theoretical approach for uncertainty quantification in probabilistic safety assessment using sum of lognormal random variables

open access: yesNuclear Engineering and Technology, 2022
Probabilistic safety assessment is widely used to quantify the risks of nuclear power plants and their uncertainties. When the lognormal distribution describes the uncertainties of basic events, the uncertainty of the top event in a fault tree is ...
Gyun Seob Song, Man Cheol Kim
doaj   +1 more source

A dynamical Gaussian, lognormal, and reverse lognormal Kalman filter

open access: yesQuarterly Journal of the Royal Meteorological Society, 2023
AbstractWe derive a generalization of the Kalman filter that allows for non‐Gaussian background and observation errors. The Gaussian assumption is replaced by considering that the errors come from a mixed distribution of Gaussian, lognormal, and reverse lognormal random variables.
Senne Van Loon, Steven J. Fletcher
openaire   +1 more source

Home - About - Disclaimer - Privacy