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Expressing a Random Variable in Terms of Uniform Random Variables

open access: yesThe Annals of Mathematical Statistics, 1961
This note suggests that expressing a distribution function as a mixture of suitably chosen distribution functions leads to improved methods for generating random variables in a computer. The idea is to choose a distribution function which is close to the original and use it most of the time, applying the correction only infrequently.
openaire   +3 more sources

A CLT for Information-theoretic statistics of Gram random matrices with a given variance profile [PDF]

open access: yes, 2007
Consider a $N\times n$ random matrix $Y_n=(Y_{ij}^{n})$ where the entries are given by $$ Y_{ij}^{n}=\frac{\sigma_{ij}(n)}{\sqrt{n}} X_{ij}^{n} $$ the $X_{ij}^{n}$ being centered, independent and identically distributed random variables with unit ...
Hachem, Walid   +2 more
core   +6 more sources

Conditional variable importance for random forests

open access: yesBMC Bioinformatics, 2008
Background Random forests are becoming increasingly popular in many scientific fields because they can cope with "small n large p" problems, complex interactions and even highly correlated predictor variables.
Augustin Thomas   +4 more
doaj   +1 more source

Effective Positioning in Cutting Area of a Harvester Using Computer Modelling

open access: yesЛесной журнал, 2023
An improvement of methods and models for preliminary estimation of the performance of harvesters in timber production intends to support better justification of the use of certain harvester types and technologies for specific natural and production ...
Andrey V. Makarenko
doaj   +1 more source

A probabilistic representation of constants in Kesten's renewal theorem [PDF]

open access: yes, 2007
The aims of this paper are twofold. Firstly, we derive some probabilistic representation for the constant which appears in the one-dimensional case of Kesten's renewal theorem. Secondly, we estimate the tail of some related random variable which plays an
Enriquez, Nathanaël   +2 more
core   +7 more sources

Practices of the Random Variable Proposed in the Chilean Mathematics Curriculum of Secondary Education

open access: yesMathematics, 2021
Working with statistical data from real contexts has become fundamental in school-level statistics, because it enables the development of statistical reasoning. In this regard, the notion of the random variable is fundamental to statistical data analysis.
Patricia Belén Carrera   +3 more
doaj   +1 more source

A generalization of the Ricets distribution

open access: yesRevista Técnica de la Facultad de Ingeniería, 2011
In this paper we generalize the Rice's random variable. We calculate the m-th moment, the distribution function, the characteristic function, the mode and the distribution of the products of Rice's -(a, a, v) random variables.
José Sarabia
doaj  

One Concave-Convex Inequality and Its Consequences

open access: yesMathematics, 2021
Our starting point is an integral inequality that involves convex, concave and monotonically increasing functions. We provide some interpretations of the inequality, in terms of both probability and terms of linear functionals, from which we further ...
Julije Jakšetić
doaj   +1 more source

Detecting Directed Interactions of Networks by Random Variable Resetting

open access: yes, 2018
We propose a novel method of detecting directed interactions of a general dynamic network from measured data. By repeating random state variable resetting of a target node and appropriately averaging over the measurable data, the pairwise coupling ...
Deng, Changbao   +2 more
core   +1 more source

Random dynamical systems on time scales

open access: yesElectronic Journal of Differential Equations, 2012
The purpose of this paper is to prove the existence and uniqueness of solution for random dynamic systems on time scales.
Cristina Lungan, Vasile Lupulescu
doaj  

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