Results 11 to 20 of about 6,174,260 (271)

Approximate skew normal distribution

open access: yesJournal of Advanced Research, 2010
We propose a new approximate skew normal distribution, it is easy to calculate, convenient, mathematically tractable and is in a closed form. It is particularly useful when the probability density function occurs in an expression to be used for further ...
Samir K. Ashour, Mahmood A. Abdel-hameed
doaj   +3 more sources

Evaluating the Normal Distribution

open access: yesJournal of Statistical Software, 2004
This article provides a little table-free C function that evaluates the normal distribution with absolute error less than 8 x 10 -16 . A small extension provides relative error near the limit available in double precision: 14 to 16 digits, the limits ...
George Marsaglia
doaj   +3 more sources

Implementasi statistika sebagai alat analisis dalam pengambilan keputusan di bidang pendidikan

open access: yesJurnal Inovasi Hasil Pengabdian Masyarakat, 2021
Statistics is a part of mathematics lessons in senior high school XII classes as well as mathematics specialization class XII. A comprehensive understanding of the basic concepts of statistics is needed to convey the material in class. The results of the
Jerhi Wahyu Fernanda, Noer Hidayah
doaj   +1 more source

Improving Grid-Connection Reliability and Safety of Synchronous Condensers With Start-Up Process Optimization

open access: yesIEEE Access, 2020
The new-type synchronous condenser uses the uncontrollable and irreversible freewheeling grid-connection mode during the start-up process, so that considerable rates of grid-connection failure could be observed in case of strict grid-connection ...
Yichao Sun   +3 more
doaj   +1 more source

The Discrete Infinite Logistic Normal Distribution [PDF]

open access: yes, 2012
We present the discrete infinite logistic normal distribution (DILN), a Bayesian nonparametric prior for mixed membership models. DILN is a generalization of the hierarchical Dirichlet process (HDP) that models correlation structure between the weights ...
Blei, David, Paisley, John, Wang, Chong
core   +3 more sources

Extended Generalized Sinh-Normal Distribution

open access: yesMathematics, 2021
Positively skewed data sets are common in different areas, and data sets such as material fatigue, reaction time, neuronal reaction time, agricultural engineering, and spatial data, among others, need to be fitted according to their features and maintain
Guillermo Martínez-Flórez   +2 more
doaj   +1 more source

Bias of the Quasi Score Estimator of a Measurement Error Model Under Misspecification of the Regressor Distribution [PDF]

open access: yes, 2003
In a structural error model the structural quasi score (SQS) estimator is based on the distribution of the latent regressor variable. If this distribution is misspecified the SQS estimator is (asymptotically) biased.
Cheng, Chi-Lun, Schneeweiß, Hans
core   +2 more sources

New characterization of two-state normal distribution [PDF]

open access: yes, 2014
In this article we give a purely noncommutative criterion for the characterization of two-state normal distribution. We prove that families of two-state normal distribution can be described by relations which is similar to the conditional expectation in ...
Ejsmont, Wiktor
core   +1 more source

Canonical Trees, Compact Prefix-free Codes and Sums of Unit Fractions: A Probabilistic Analysis [PDF]

open access: yes, 2015
For fixed $t\ge 2$, we consider the class of representations of $1$ as sum of unit fractions whose denominators are powers of $t$ or equivalently the class of canonical compact $t$-ary Huffman codes or equivalently rooted $t$-ary plane "canonical" trees.
Heuberger, Clemens   +2 more
core   +2 more sources

Improving the Performance of Turbo-Coded Systems under Suzuki Fading Channels

open access: yesJournal of Low Power Electronics and Applications, 2019
In this paper, the performance of coded systems is considered in the presence of Suzuki fading channels, which is a combination of both short-fading and long-fading channels.
Ali J. Al-Askery   +2 more
doaj   +1 more source

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