Results 11 to 20 of about 3,239,824 (259)

An invitation to statistics in Wasserstein space [PDF]

open access: yes, 2020
This open access book presents the key aspects of statistics in Wasserstein spaces, i.e. statistics in the space of probability measures when endowed with the geometry of optimal transportation.
Panaretos, Victor M.   +2 more
core   +2 more sources

Goodness-of-fit tests for imperfect maintenance models based on Martingale residuals, varentropy, and probability integral transform [PDF]

open access: yesJournal of Mahani Mathematical Research
In recent years, various goodness-of-fit tests have been developed to identify the underlying distribution of failure data. In this paper, we extend the application of such tests to evaluate the adequacy of imperfect maintenance models for engineering ...
Fattaneh Nezmpour   +2 more
doaj   +1 more source

Fuzzy nonparametric regression based on K-nearest neighbors and the R-neighborhood radius [PDF]

open access: yesJournal of Mahani Mathematical Research
In this paper, we present four nonparametric methods to fit some fuzzy regression models, when both the explanatory and response variables are fuzzy quantities. In this approach, we first introduced a distance between triangular fuzzy numbers.
Ebrahim Ebrahimi   +2 more
doaj   +1 more source

Probabilistic linear widths of Sobolev space with Jacobi weights on [ − 1 , 1 ] $[-1,1]$

open access: yesJournal of Inequalities and Applications, 2017
Optimal asymptotic orders of the probabilistic linear ( n , δ ) $(n,\delta)$ -widths of λ n , δ ( W 2 , α , β r , ν , L q , α , β ) $\lambda_{n,\delta }(W^{r}_{2,\alpha,\beta }, \nu,L_{q,\alpha,\beta })$ of the weighted Sobolev space W 2 , α , β r $W_{2,{
Xuebo Zhai, Xiuyan Hu
doaj   +1 more source

Mathematical Methods of Statistics A First Course in Mathematical Statistics [PDF]

open access: yesNature, 1947
THESE two books at once invite comparison with A Maurice Kendall's “Advanced Theory of Statistics” and A. C. Aitken's “Statistical Mathematics”. All four are mathematically flawless, and they all require from the reader some mathematical training and ability, but not to the same extent, nor are they all addressed to quite the same category of ...
openaire   +1 more source

Thermodynamic analysis of casting titanium alloys is the basis of information support in the optimal foundry technology development

open access: yesЛитьë и металлургия, 2022
The necessity of systematic formation of intellectual connections for integration into a single complex of currently fragmented software products for the technological analysis of the castings geometry, thermodynamic modeling of the titanium alloys ...
T. A. Rad   +3 more
doaj   +1 more source

Determination of Significant Parameters on the Basis of Methods of Mathematical Statistics, and Boolean and Fuzzy Logic

open access: yesMathematics, 2022
Among the set of parameters for which data are collected for decision-making based on artificial intelligence methods, often only some of the parameters are significant.
Yulia Shichkina   +2 more
doaj   +1 more source

Spectral statistics of large dimensional Spearman’s rank correlation matrix and its application

open access: yes, 2015
Let Q = (Q1, . . . ,Qn) be a random vector drawn from the uniform distribution on the set of all n! permutations of {1, 2, . . . ,n}. Let Z = (Z1, . . . ,Zn), where Zj is the mean zero variance one random variable obtained by centralizing and normalizing
Zhou, Wang   +4 more
core   +1 more source

Analysis of an Interface Crack between Piezoelectric Semiconductor Coating and Elastic Substrate Structure

open access: yesMathematics
Piezoelectric semiconductor materials possess a unique combination of piezoelectric and semiconductor effects, exhibiting multifaceted coupling properties such as electromechanical, acoustic, photoelectric, photovoltaic, thermal, and thermoelectric ...
Xiangru Tian   +4 more
doaj   +1 more source

A Crank–Nicolson linear difference scheme for a BBM equation with a time fractional nonlocal viscous term

open access: yesAdvances in Difference Equations, 2018
In this paper, we construct a Crank–Nicolson linear finite difference scheme for a Benjamin–Bona–Mahony equation with a time fractional nonlocal viscous term.
Xue Shen, Ailing Zhu
doaj   +1 more source

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