Results 31 to 40 of about 78 (50)

Some applications of the matrix Haffian in connection with differentiable matrix functions of a central Wishart variate [PDF]

open access: yes, 2001
In this paper we revisit Haff's seminal work on the matrix Haffian as we proposed to call it. We review some results, and give new derivations.
Neudecker, Heinz
core   +5 more sources

Sequential Learning of Principal Curves: Summarizing Data Streams on the Fly [PDF]

open access: yes, 2019
When confronted with massive data streams, summarizing data with dimension reduction methods such as PCA raises theoretical and algorithmic pitfalls.
Guedj, Benjamin, Li, Le
core   +6 more sources

The asymptotics of ranking algorithms

open access: yes, 2013
We consider the predictive problem of supervised ranking, where the task is to rank sets of candidate items returned in response to queries. Although there exist statistical procedures that come with guarantees of consistency in this setting, these ...
Duchi, John C.   +2 more
core   +1 more source

Shrinkage estimation with a matrix loss function [PDF]

open access: yes, 2012
Consider estimating an n×p matrix of means Θ, say, from an n×p matrix of observations X, where the elements of X are assumed to be independently normally distributed with E(xij)=θij and constant variance, and where the performance of an estimator is ...
Abu-Shanab, R, Kent, JT, Strawderman, WE
core   +1 more source

2000 Mathematics Subject Classification: Primary 62C99, sec-ondary 62C10, 62C20, 62J05

open access: yes, 2016
The paper deals with recovering an unknown vector β ∈ R^p based on the observations Y = Xβ + ∈ξ and Z = X + σζ, where X is an unknown n×p-matrix with n ≥ p, ξ ∈ R^p is a standard white Gaussian noise, ζ is a n × p-matrix with i.i.d. standard Gaussian entries, and ∈, σ ∈ R^+ are known noise levels. It is assumed that X has a large condition number and p
Golubev, Yu., Zimolo, Th.
openaire   +1 more source

Comments on the mixture detection rule used in SPC control charts [PDF]

open access: yes, 2007
When calculating independently the false alarm rate of the eight usual runs rules used in SPC control chart, it appears that the proposed rule designed to detect mixture patterns corresponds to a Type-I error strongly lower than the seven other rules ...
BIGERELLE, Maxence   +4 more
core   +2 more sources

Minimax Confidence Sets for the Mean of a Multivariate Normal Distribution [PDF]

open access: yes, 1981
32 pages, 1 article*Minimax Confidence Sets for the Mean of a Multivariate Normal Distribution* (Hwang, Jiunn T.; Casella, George) 32 ...
Casella, George   +4 more
core  

Improved Confidence Estimators for the Usual Multivariate Normal Confidence Set [PDF]

open access: yes, 1989
21 pages, 1 article*Improved Confidence Estimators for the Usual Multivariate Normal Confidence Set* (Robert, Christian; Casella, George) 21 ...
Casella, George   +4 more
core  

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