Results 31 to 40 of about 99,558 (321)
Evaluating Modeled Intra- to Multidecadal Climate Variability Using Running Mann–Whitney \u3cem\u3eZ\u3c/em\u3e Statistics [PDF]
, 2012 An analysis method previously used to detect observed intra- to multidecadal (IMD) climate regimes was adapted to compare observed and modeled IMD climate variations.
Brown, Patrick T. +2 more
core +2 more sources
Alcohol Use and Gamma-Glutamyltransferase Using a Mendelian Randomization Design in the Guangzhou Biobank Cohort Study. [PDF]
PLoS ONE, 2015 Observational studies and small intervention studies suggest alcohol raises gamma-glutamyltransferase (GGT). We used Mendelian randomization to assess the causal effect of alcohol use on GGT in older Chinese people.An instrumental variable (IV) analysis ...
Lin Xu +6 more
doaj +1 more source
The LIL for U-Statistics in Hilbert Spaces [PDF]
Journal of Theoretical Probability, 2007 We give necessary and sufficient conditions for the (bounded) law of the iterated logarithm for $U$-statistics in Hilbert spaces. As a tool we also develop moment and tail estimates for canonical Hilbert-space valued $U$-statistics of arbitrary order, which are of independent interest.
Radosław Adamczak, Rafał Latała
openaire +3 more sources
Anomaly-Background Separation and Geochemical Map Generation for Pb and Zn in Parkam District Based on U–Statistical Method, Kerman, Iran [PDF]
International Journal of Economic and Environment Geology, 2013 There are several statistical methodologies presented for separating anomalous values from background values leading to determination of anomalous areas.
S.S. Ghannadpour +2 more
doaj
Limiting cumulants of U-statistics
Applied Mathematics Letters, 1992 AbstractA simple expression is derived for the cumulants of the asymptotic distribution of U-statistics of arbitrary degree with degenerate kernels.
Richard A. Redner, Kevin A. O’Neil
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Predictability of cryptocurrency returns: evidence from robust tests
Dependence Modeling, 2022 The paper provides a comparative empirical study of predictability of cryptocurrency returns and prices using econometrically justified robust inference methods.
He Siyun, Ibragimov Rustam
doaj +1 more source
Journal of the Egyptian Mathematical Society, 2019 In this paper, a new class of life distribution is proposed, named renewal new better than used in Laplace transform order (RNBUL). The test statistic for testing exponentiality versus (RNBUL) based on U-statistic is proposed.
M. A. W. Mahmoud, L. S. Diab, D. M. Radi
doaj +1 more source
Robust multivariate nonparametric tests for detection of two-sample location shift in clinical trials. [PDF]
PLoS ONE, 2018 This article presents and investigates performance of a series of robust multivariate nonparametric tests for detection of location shift between two multivariate samples in randomized controlled trials.
Xuejun Jiang +4 more
doaj +1 more source
The Annals of Probability, 1991 We introduce a class of so-called conditional $U$-statistics, which generalize the Nadaraya-Watson estimate of a regression function in the same way as Hoeffding's classical $U$-statistics is a generalization of the sample mean. Asymptotic normality and weak and strong consistency are proved.
openaire +3 more sources
Poisson limits for U-statistics
Stochastic Processes and their Applications, 2002 AbstractWe study Poisson limits for U-statistics with non-negative kernels. The limit theory is derived from the Poisson convergence of suitable point processes of U-statistics structure. We apply these results to derive infinite variance stable limits for U-statistics with a regularly varying kernel and to determine the index of regular variation of ...
Dabrowski, André R +3 more
openaire +2 more sources