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Advanced Search Results For "U-statistics"

1 - 10 of 23,622 results for
 "U-statistics"
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The multivariate functional de Jong CLT.

Publication Type: Academic Journal

Source(s): Probability Theory & Related Fields. Oct2022, Vol. 184 Issue 1/2, p367-399. 33p.

Abstract: We prove a multivariate functional version of de Jong's CLT (J Multivar Anal 34(2):275–289, 1990) yielding that, given a sequence of vectors of Hoeffding-degenerate U-statistics, the corresponding empirical processes on [0, 1] weakly converge in the Sk...

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Sequential change point tests based on U‐statistics.

Publication Type: Academic Journal

Source(s): Scandinavian Journal of Statistics. Sep2022, Vol. 49 Issue 3, p1184-1214. 31p.

Abstract: We propose a general framework of sequential testing procedures based on U‐statistics which contains as an example a sequential CUSUM test based on differences in mean but also includes a robust sequential Wilcoxon change point procedure. Within this f...

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Education And Prevention: Strategies To Prevent Adolescent Suicide.

Publication Type: Academic Journal

Source(s): Journal of Pharmaceutical Negative Results. 2022 Special Issue, Vol. 13, p1711-1721. 11p.

Abstract: Gatekeepers Training (GKT) is one of the most widely used and disseminated programs worldwide to train personnel in suicide prevention. The purpose of the program is to acquire the necessary skills and competencies to detect psychoemotional and mental ...

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An optimal design in a two-stage ethical allocation based on U-statistics.

Publication Type: Academic Journal

Source(s): Journal of Statistical Computation & Simulation. May2022, Vol. 92 Issue 8, p1763-1780. 18p.

Authors:

Abstract: The present article is related to a comparison between two competing treatments, say A and B in the context of a Phase III clinical trial. This comparison is made through a U-statistic estimator of the functional θ = P (X < Y) , where X and Y represent...

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On change-points tests based on two-samples U-Statistics for weakly dependent observations.

Publication Type: Academic Journal

Source(s): Statistical Papers. Feb2022, Vol. 63 Issue 1, p287-316. 30p.

Abstract: We study change-points tests based on U-statistics for absolutely regular observations. Our method avoids some technical assumptions on the data and the kernel. The asymptotic properties of the U-statistics are studied under the null hypothesis, under ...

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Prognostic accuracy for predicting ordinal competing risk outcomes using ROC surfaces.

Publication Type: Academic Journal

Source(s): Lifetime Data Analysis. Jan2022, Vol. 28 Issue 1, p1-22. 22p.

Abstract: Many medical conditions are marked by a sequence of events in association with continuous changes in biomarkers. Few works have evaluated the overall accuracy of a biomarker in predicting disease progression. We thus extend the concept of receiver oper...

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Normal approximation for generalized U-statistics and weighted random graphs.

Publication Type: Academic Journal

Source(s): Stochastics: An International Journal of Probability & Stochastic Processes. May2022, Vol. 94 Issue 3, p432-458. 27p.

Abstract: We derive normal approximation bounds in the Wasserstein distance for sums of generalized U-statistics, based on a general distance bound for functionals of independent random variables of arbitrary distributions. Those bounds are applied to normal app...

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Analyzing Operation Efficiency of a City Transportation System by the U-Statistics Methods. I. Interactive Evaluation of Continuous Monitoring Results.

Publication Type: Academic Journal

Source(s): Cybernetics & Systems Analysis. May2022, Vol. 58 Issue 3, p440-449. 10p.

Abstract: The method of U-statistics is used to analyze the operation efficiency of a large city transportation system as a complex network system with partially ordered traffic flows. Based on the continuous monitoring results of the ordered flow part equipped ...

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Confidence sets for dynamic poverty indexes.

Publication Type: Academic Journal

Source(s): Journal of Applied Statistics; Dec2022, Vol. 49 Issue 15, p3908-3927, 20p, 5 Charts

Abstract: Copyright of Journal of Applied Statistics is the property of Routledge and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download...

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Asymptotic Expansions for Symmetric Statistics with Degenerate Kernels.

Publication Type: Academic Journal

Source(s): Mathematics (2227-7390); Nov2022, Vol. 10 Issue 21, p4158, 10p

Authors:

Abstract: Copyright of Mathematics (2227-7390) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email ...

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