Results 41 to 50 of about 563,530 (312)

Poisson limits for U-statistics

open access: yesStochastic Processes and their Applications, 2002
In the first part of the paper point processes of structure like a \(U\)-statistic with a symmetric non-negative kernel are considered and their convergence to a Poisson process is established under conditions of regularity and asymptotic independence. The result is then utilized to obtain \(\alpha \)-stable limits for \(U\)-statistics with heavy right-
Dabrowski, André R   +3 more
openaire   +2 more sources

On high-frequency limits of $U$-statistics in Besov spaces over compact manifolds [PDF]

open access: yes, 2016
In this paper, quantitative bounds in high-frequency central limit theorems are derived for Poisson based $U$-statistics of arbitrary degree built by means of wavelet coefficients over compact Riemannian manifolds. The wavelets considered here are the so-
Bourguin, Solesne, Durastanti, Claudio
core   +2 more sources

Kontrola tačnosti rezultata u simulacijama Monte Karlo / Accuracy control in Monte Carlo simulations

open access: yesVojnotehnički Glasnik, 2010
U radu je demonstrirana primena metode automatizovanog ponavljanja nezavisnih simulacionih eksperimenata sa prikupljanjem statistike slučajnih procesa, u dostizanju i kontroli tačnosti simulacionih rezultata u simulaciji sistema masovnog opsluživanja ...
Nebojša V. Nikolić
doaj   +1 more source

Diversity and Dynamics of Seaweed Associated Microbial Communities Inhabiting the Lagoon of Venice

open access: yesMicroorganisms, 2020
Seaweeds are a group of essential photosynthetic organisms that harbor a rich diversity of associated microbial communities with substantial functions related to host health and defense. Environmental and anthropogenic stressors may disrupt the microbial
Abdul-Salam Juhmani   +6 more
doaj   +1 more source

A renewal approach to Markovian U-statistics [PDF]

open access: yesMathematical Methods of Statistics, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bertail, Patrice, Clémençon, Stéphan
openaire   +2 more sources

Convergence of U-statistics for interacting particle systems [PDF]

open access: yes, 2009
The convergence of U-statistics has been intensively studied for estimators based on families of i.i.d. random variables and variants of them. In most cases, the independence assumption is crucial [Lee90, de99].
Del Moral, P.   +2 more
core   +6 more sources

Asymptotics for the Moment Convergence of U-Statistics in LIL

open access: yesJournal of Inequalities and Applications, 2010
Let Un be a U-statistic based on a symmetric kernel h(x,y) and i.i.d. samples {X,Xn;n≥1}. In this paper, the exact moment convergence rates in the law of the iterated logarithm and the law of the logarithm of Un are obtained, which extend previous
Ke-Ang Fu
doaj   +1 more source

Moment inequalities for U-statistics

open access: yes, 2007
We present moment inequalities for completely degenerate Banach space valued (generalized) U-statistics of arbitrary order. The estimates involve suprema of empirical processes which, in the real-valued case, can be replaced by simpler norms of the ...
Adamczak, Radosław
core   +1 more source

Second-order ResU-Net for automatic MRI brain tumor segmentation

open access: yesMathematical Biosciences and Engineering, 2021
Tumor segmentation using magnetic resonance imaging (MRI) plays a significant role in assisting brain tumor diagnosis and treatment. Recently, U-Net architecture with its variants have become prevalent in the field of brain tumor segmentation.
Ning Sheng   +4 more
doaj   +1 more source

Estimating invariant laws of linear processes by U-statistics [PDF]

open access: yes, 2004
Suppose we observe an invertible linear process with independent mean-zero innovations and with coefficients depending on a finite-dimensional parameter, and we want to estimate the expectation of some function under the stationary distribution of the ...
Schick, Anton, Wefelmeyer, Wolfgang
core   +2 more sources

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