Results 11 to 20 of about 478,221 (266)

A nonparametric test for comparing survival functions based on restricted distance correlation

open access: yesDependence Modeling, 2023
In this article, we propose an omnibus test for comparing two survival functions under non-proportional hazards. The test statistic is based on a product-limit estimate of the restricted distance correlation, which is closely related to the L2{L}_{2 ...
Zhang Qingyang
doaj   +1 more source

Research on Strong Cache Consistency Under Generic Cache Replacement Strategy [PDF]

open access: yesJisuanji gongcheng, 2022
Establishing an accurate cache analysis model helps to predict the cache behavior better, which is vital for network performance analysis and planning.However, existing analysis models for cache consistency studies are based on the Least Recently Used ...
YANG Tao, ZHENG Quan, XU Zhenghuan, SHI Qianbao, PENG Siwei
doaj   +1 more source

Verifying strong eventual consistency in distributed systems [PDF]

open access: yesProceedings of the ACM on Programming Languages, 2017
Data replication is used in distributed systems to maintain up-to-date copies of shared data across multiple computers in a network. However, despite decades of research, algorithms for achieving consistency in replicated systems are still poorly understood.
Mulligan, DP   +3 more
openaire   +2 more sources

Ergodic properties of the solution to a fractional stochastic heat equation, with an application to diffusion parameter estimation

open access: yesModern Stochastics: Theory and Applications, 2020
The paper deals with a stochastic heat equation driven by an additive fractional Brownian space-only noise. We prove that a solution to this equation is a stationary and ergodic Gaussian process. These results enable us to construct a strongly consistent
Diana Avetisian, Kostiantyn Ralchenko
doaj   +1 more source

Adequacy analysis the model of strong replicas agreement in NoSQL databases [PDF]

open access: yesКомпьютерные исследования и моделирование, 2016
In this article the model of strong replicas agreement was analyzed. The process of preparing and conducting the nature experiment in the cloud in order to proof the model adequacy was described.
Evgeny Vasilievich Tsviashchenko
doaj   +1 more source

Estimating Drift Parameters in a Sub-Fractional Vasicek-Type Process

open access: yesEntropy, 2022
This study deals with drift parameters estimation problems in the sub-fractional Vasicek process given by dxt=θ(μ−xt)dt+dStH, with θ>0, μ∈R being unknown and t≥0; here, SH represents a sub-fractional Brownian motion (sfBm). We introduce new estimators θ^
Anas D. Khalaf   +4 more
doaj   +1 more source

Strong consistency of the local linear relative regression estimator for censored data [PDF]

open access: yesOpuscula Mathematica, 2022
In this paper, we combine the local linear approach to the relative error regression estimation method to build a new estimator of the regression operator when the response variable is subject to random right censoring.
Feriel Bouhadjera, Elias Ould Saïd
doaj   +1 more source

Parameter estimation for fractional mixed fractional Brownian motion based on discrete observations

open access: yesModern Stochastics: Theory and Applications, 2023
The object of investigation is the mixed fractional Brownian motion of the form ${X_{t}}=\kappa {B_{t}^{{H_{1}}}}+\sigma {B_{t}^{{H_{2}}}}$, driven by two independent fractional Brownian motions ${B_{1}^{H}}$ and ${B_{2}^{H}}$ with Hurst parameters ${H_ ...
Kostiantyn Ralchenko, Mykyta Yakovliev
doaj   +1 more source

Strong local consistency algorithms for table constraints [PDF]

open access: yesConstraints, 2015
Table constraints are important in constraint programming as they are present in many real problems from areas such as configuration and databases. As a result, numerous specialized algorithms that achieve generalized arc consistency (GAC) on table constraints have been proposed.
Paparrizou, Anastasia, Stergiou, Kostas
openaire   +3 more sources

Mean square convergence rates for maximum quasi-likelihood estimator

open access: yesStochastic Systems, 2015
In this note we study the behavior of maximum quasilikelihood estimators (MQLEs) for a class of statistical models, in which only knowledge about the first two moments of the response variable is assumed.
Arnoud V. den Boer, Bert Zwart
doaj   +1 more source

Home - About - Disclaimer - Privacy