Results 31 to 40 of about 767,689 (294)

Statistics of Extremes in Athletics

open access: yesRevstat Statistical Journal, 2011
TV shows on any athletic event make clear that those who want gold medals cannot dispense statistics. And the statistics more appealing to champions and coachers are the extreme order statistics, and in particular maximum (or minimum) values and records.
Lígia Henriques-Rodrigues   +2 more
doaj   +1 more source

Universal Chern number statistics in random matrix fields

open access: yesSciPost Physics, 2023
We investigate the probability distribution of Chern numbers (quantum Hall conductance integers) for a parametric version of the GUE random matrix ensemble, which is a model for a chaotic or disordered system.
Or Swartzberg, Michael Wilkinson, Omri Gat
doaj   +1 more source

Highly nonclassical photon statistics in parametric down conversion

open access: yes, 2006
We use photon counters to obtain the joint photon counting statistics from twin-beam non-degenerate parametric down conversion, and we demonstrate directly, and with no auxiliary assumptions, that these twin beams are ...
A. I. Lvovsky   +5 more
core   +1 more source

Parametric versus non-parametric statistics in the analysis of randomized trials with non-normally distributed data

open access: yesBMC Medical Research Methodology, 2005
Background It has generally been argued that parametric statistics should not be applied to data with non-normal distributions. Empirical research has demonstrated that Mann-Whitney generally has greater power than the t-test unless data are sampled from
Vickers Andrew J
doaj   +1 more source

Robust Statistics [PDF]

open access: yes, 2018
In lieu of an abstract, here is the entry\u27s first paragraph: Robust statistics are procedures that maintain nominal Type I error rates and statistical power in the presence of violations of the assumptions that underpin parametric inferential ...
Blaine, Bruce E
core   +1 more source

Penalized variable selection procedure for Cox models with semiparametric relative risk

open access: yes, 2010
We study the Cox models with semiparametric relative risk, which can be partially linear with one nonparametric component, or multiple additive or nonadditive nonparametric components.
Du, Pang, Liang, Hua, Ma, Shuangge
core   +1 more source

Bootstrap confidence sets under model misspecification [PDF]

open access: yes, 2014
A multiplier bootstrap procedure for construction of likelihood-based confidence sets is considered for finite samples and a possible model misspecification. Theoretical results justify the bootstrap validity for a small or moderate sample size and allow
Spokoiny, Vladimir, Zhilova, Mayya
core   +3 more sources

A PRSZT Registry Analysis of Prognostic Factors Influencing Survival and Relapse Rates After Second Allogeneic Hematopoietic Stem Cell Transplantation in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT A second allogeneic (allo‐)hematopoietic stem cell transplantation (HSCT2) is a potential curative option for pediatric patients with acute lymphoblastic leukemia (ALL) following relapse after first allogeneic transplantation (HSCT1), but its efficacy is limited by high relapse rates and transplant‐related toxicity in highly pretreated ...
Ava Momm   +10 more
wiley   +1 more source

Practical guide to using Kendall’s τ in the context of forecasting critical transitions

open access: yesRoyal Society Open Science, 2022
Recent studies demonstrate that trends in indicators extracted from measured time series can indicate an approach of an impending transition. Kendall’s τ coefficient is often used to study the trend of statistics related to the critical slowing down ...
Shiyang Chen   +2 more
doaj   +1 more source

Quantum optics of a Bose-Einstein condensate coupled to a quantized light field

open access: yes, 1999
We consider the interaction between a Bose-Einstein condensate and a single-mode quantized light field in the presence of a strong far off-resonant pump laser.
C. K. Law   +35 more
core   +1 more source

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