Results 1 to 10 of about 54,125 (236)

Asymptotic Pitman's Relative Efficiency

open access: yesStatistica, 2017
Pitman efficiency is the oldest known efficiency.  Most of the known results for computing the Pitman efficiency take the form of bounds.  Based on some recent developments due to the authors and some calculus of variations, we develop tools for ...
Christopher S. Withers   +1 more
doaj   +2 more sources

BNPmix: An R Package for Bayesian Nonparametric Modeling via Pitman-Yor Mixtures

open access: yesJournal of Statistical Software, 2021
BNPmix is an R package for Bayesian nonparametric multivariate density estimation, clustering, and regression, using Pitman-Yor mixture models, a flexible and robust generalization of the popular class of Dirichlet process mixture models.
Riccardo Corradin   +2 more
doaj   +1 more source

A General Class of Tests for Testing Homogeneity of Location Parameters against Umbrella Alternatives [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2018
In this paper, a general class of non-parametric tests for testing homogeneity of location parameter against umbrella alternatives is proposed. Testing for umbrella alternatives has many applications in the field of biology, medicine, botany, dose level ...
Manish Goyal, Narinder Kumar
doaj   +1 more source

An exact adaptive test with superior design sensitivity in an observational study of treatments for ovarian cancer [PDF]

open access: yes, 2012
A sensitivity analysis in an observational study determines the magnitude of bias from nonrandom treatment assignment that would need to be present to alter the qualitative conclusions of a na\"{\i}ve analysis that presumes all biases were removed by ...
Rosenbaum, Paul R.
core   +3 more sources

The most efficient linear combination of the Sign and the Maesono tests for p-normal distributions

open access: yesStatistica, 2013
This paper deals with the Pitman most efficient Gr linear combination of the Sign and the Maesono tests for parent distributions belonging to the p-normal family of densities. The most efficient linear combinations G2 and G4 are obtained.
Giuseppe Burgio, Stefano Patrì
doaj   +1 more source

A constructive and unifying framework for zero-bit watermarking [PDF]

open access: yes, 2006
In the watermark detection scenario, also known as zero-bit watermarking, a watermark, carrying no hidden message, is inserted in content. The watermark detector checks for the presence of this particular weak signal in content. The article looks at this
Furon, Teddy
core   +7 more sources

A Note on Detecting “More IFR-ness” Property of Life Distributions [PDF]

open access: yes, 2012
In this paper, a problem of testing whether one life distribution possesses “more IFR” property than the other is considered.A new test procedure is proposed and the distribution of the test statistic is studied.
Pandit, P.V., Sujatha Inginashetty, .
core   +1 more source

On the combination of the sign and Maesono tests for simmetry and its efficiency

open access: yesStatistica, 2007
We propose a new test for the simmetry hypothesis which is a combination of the sign statistic and the Wr Maesono statistic. The latter generalizes the Wilcoxon statistic and coincides with it for r = 2. The proposed statistic belongs to the class of non-
Giuseppe Burgio, Yakov Yu. Nikitin
doaj   +1 more source

Asymptotic relative Pitman efficiency in group models

open access: yesJournal of Multivariate Analysis, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chang, Ted, Tsai, Ming-Tien
openaire   +2 more sources

Efficient plot-based floristic assessment of tropical forests [PDF]

open access: yes, 2003
The tropical flora remains chronically understudied and the lack of floristic understanding hampers ecological research and its application for large-scale conservation planning.
Chuspe Zans, M.   +9 more
core   +1 more source

Home - About - Disclaimer - Privacy