Results 11 to 20 of about 3,344,527 (282)

Correlation and variable importance in random forests

open access: yesStatistics and Computing, 2016
This paper is about variable selection with the random forests algorithm in presence of correlated predictors. In high-dimensional regression or classification frameworks, variable selection is a difficult task, that becomes even more challenging in the ...
Gregorutti, Baptiste   +2 more
core   +4 more sources

Random variable functions used in hydrology

open access: yesSelecciones Matemáticas, 2019
In this work, expressions of the cumulative distribution function of Y X, Y/X and X/(X + Y ) for continuous dependent random variables with supported on a unbounded and bounded interval are derived.
Cira E. G. Otiniano, Yuri S. Maluf
doaj   +1 more source

DETERMINING OF LANE CAPACITY OF INTERCITY ROADS AND URBAN STREETS [PDF]

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2018
Problem. The capacity of intercity roads and urban streets is an important basic input required for planning, analysis and operation of roadway systems.
Nahlyuk I.   +3 more
doaj   +1 more source

Fuzzy random variables

open access: yesJournal of Mathematical Analysis and Applications, 1986
In a previous paper [ibid. 91, 552-558 (1983; Zbl 0528.54009)] the authors defined differentials for a fuzzy valued function. In this clearly thought and well-written paper they define an integral, or an expected value, of a fuzzy valued random variable. The definition is based on the integral of a set-valued function.
Puri, Madan L, Ralescu, Dan A
openaire   +2 more sources

Approximation of probability density functions for PDEs with random parameters using truncated series expansions

open access: yes, 2020
The probability density function (PDF) of a random variable associated with the solution of a partial differential equation (PDE) with random parameters is approximated using a truncated series expansion.
Capodaglio, Giacomo   +2 more
core   +1 more source

Quantumness in Diagnostics of Marine Internal Combustion Engines and Other Ship Power Plant Machines

open access: yesPolish Maritime Research, 2023
The article provides proof that the diagnostics of marine internal combustion engines and other ship power plant machines should take into account the randomness and unpredictability of certain events, such as wear, damage, the variations of mechanical ...
Girtler Jerzy, Rudnicki Jacek
doaj   +1 more source

On Source Coding with Coded Side Information for a Binary Source with Binary Side Information [PDF]

open access: yes, 2007
The lossless rate region for the coded side information problem is "solved," but its solution is expressed in terms of an auxiliary random variable. As a result, finding the rate region for any fixed example requires an optimization over a family of ...
Effros, Michelle   +3 more
core   +3 more sources

Calculation of the residual bearing capacity of reinforced concrete beams by the rigidity (deflection) criterion

open access: yesИнженерно-строительный журнал, 2015
The article proposes the method of calculating the bearing capacity of reinforced concrete beams at the operational stage by the rigidity (deflection) criterion. The methods, which were used in the article, are integral test and probabilistic methods for
V.S. Utkin, S.A. Solovyov
doaj   +1 more source

Cram\'er transform and t-entropy [PDF]

open access: yes, 2013
t-entropy is the convex conjugate of the logarithm of the spectral radius of a weighted composition operator (WCO). Let $X$ be a nonnegative random variable.
Ostaszewska, Urszula   +1 more
core   +2 more sources

Characteristic value determination from small samples [PDF]

open access: yes, 2007
The paper deals with the characteristic value determination from relatively small samples. When the distribution and its parameters of a random variable are known, the characteristic value is deterministic quantity.
Benjamin   +8 more
core   +2 more sources

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