Oxford Index Search Results

You are looking at 41-60 of 467 items for:

random vector x clear all

Show only full text

Refine by subject

 

Refine by type

Refine by product

 

The optimal confidence region for a random parameter

Hajime Uno, Lu Tian and L. J. Wei.

in Biometrika

December 2005; p ublished online December 2005 .

Journal Article. Subjects: Probability and Statistics. 0 words.

Suppose that, under a two-level hierarchical model, the distribution of the vector of random parameters is known or can be estimated well. The data are generated via a fixed, but...

Go to Oxford Journals »  full text   » abstract

covariance matrix

Overview page. Subjects: Economics.

For a vector of random variables X = [X 1X n ], a matrix of variances of each component along the main diagonal and covariances between...

See overview in Oxford Index

shotgun cloning

Overview page. Subjects: Chemistry — Genetics and Genomics.

A technique in which the genomic DNA of an organism is randomly broken into smaller fragments by mechanical shearing or partial digestion with restriction endonucleases (q.v.) and cloned in...

See overview in Oxford Index

shotgun cloning

Edited by Elizabeth Martin and Robert Hine.

in A Dictionary of Biology

June 2016; p ublished online September 2015 .

Reference Entry. Subjects: Biological Sciences. 53 words.

A method for cloning the entire genome of an organism in which the DNA is broken into small fragments at random using restriction enzymes. Each fragment is then incorporated with a cloning...

Go to Oxford Reference »  home page

shotgun cloning

Edited by Robert Hine.

in A Dictionary of Biology

April 2019; p ublished online April 2019 .

Reference Entry. Subjects: Biological Sciences. 53 words.

A method for cloning the entire genome of an organism in which the DNA is broken into small fragments at random using restriction enzymes. Each fragment is then incorporated with a cloning...

Go to Oxford Reference »  home page

Covariance reducing models: An alternative to spectral modelling of covariance matrices

R. Dennis Cook and Liliana Forzani.

in Biometrika

December 2008; p ublished online December 2008 .

Journal Article. Subjects: Probability and Statistics. 0 words.

We introduce covariance reducing models for studying the sample covariance matrices of a random vector observed in different populations. The models are based on reducing the sample...

Go to Oxford Journals »  full text   » abstract

A consistent multivariate test of association based on ranks of distances

Ruth Heller, Yair Heller and Malka Gorfine.

in Biometrika

June 2013; p ublished online December 2012 .

Journal Article. Subjects: Probability and Statistics. 0 words.

We consider the problem of detecting associations between random vectors of any dimension. Few tests of independence exist that are consistent against all dependent alternatives. We propose...

Go to Oxford Journals »  full text   » abstract

A Bayes filter in Friedland form for INS/GPS vector gravimetry

B. Schaffrin and J. H. Kwon.

in Geophysical Journal International

April 2002; p ublished online April 2002 .

Journal Article. Subjects: Geophysics. 4342 words.

Summary

We introduce a dynamic linear model in which the observation equations are perturbed by a form that has constant (over time), non-random coefficients...

Go to Oxford Journals »  full text

The conditional independences between variables derived from two independent identically distributed Markov random fields when pairwise order is ignored

Alun Thomas.

in Mathematical Medicine and Biology: A Journal of the IMA

September 2010; p ublished online November 2009 .

Journal Article. Subjects: Applied Mathematics; Biomathematics and Statistics. 0 words.

A result for the equivalence of conditional independence graphs of ordered and unordered vector random variables from first-order Markov models is extended to arbitrary forests. The result...

Go to Oxford Journals »  abstract

A new analysis of quasar polarization alignments

V. Pelgrims and J. R. Cudell.

in Monthly Notices of the Royal Astronomical Society

P ublished online June 2014 .

Journal Article. Subjects: Astronomy and Astrophysics. 7101 words.

We propose a new method to analyse the alignment of optical polarization vectors from quasars. This method leads to a definition of intrinsic preferred axes and to a determination of the...

Go to Oxford Journals »  full text   » abstract

Unequal probability sampling without replacement through a splitting method

JEAN-CLAUDE DEVILLE and YVES TILLÉ.

in Biometrika

March 1998; p ublished online March 1998 .

Journal Article. Subjects: Probability and Statistics. 0 words.

A very general class of sampling methods without replacement and with unequal probabilities is proposed. It consists of splitting the inclusion probability vector into several new inclusion...

Go to Oxford Journals »  full text   » abstract

Improved methods of AAV-mediated gene targeting for human cell lines using ribosome-skipping 2A peptide

Sivasundaram Karnan, Akinobu Ota, Yuko Konishi, Md Wahiduzzaman, Yoshitaka Hosokawa and Hiroyuki Konishi.

in Nucleic Acids Research

April 2016; p ublished online December 2015 .

Journal Article. Subjects: Research Methods in Life Sciences. 8713 words.

The adeno-associated virus (AAV)-based targeting vector has been one of the tools commonly used for genome modification in human cell lines. It allows for relatively efficient gene...

Go to Oxford Journals »  full text: open access

finite mixture model

Overview page. Subjects: Probability and Statistics.

In a finite mixture model the distribution of the random variable X has a known form (e.g. normal), but the values of the parameters of the distribution are not known. Instead, it is known...

See overview in Oxford Index

Renormalization procedure for random tensor networks and the canonical tensor model

Naoki Sasakura and Yuki Sato.

in Progress of Theoretical and Experimental Physics

April 2015; p ublished online April 2015 .

Journal Article. Subjects: Particles and Fields. 8911 words.

We discuss a renormalization procedure for random tensor networks, and show that the corresponding renormalization-group flow is given by the Hamiltonian vector flow of the canonical tensor...

Go to Oxford Journals »  full text: open access   » abstract

Mixture of differentially tagged Tol2 transposons accelerates conditional disruption of a broad spectrum of genes in mouse embryonic stem cells

N. Ika Mayasari, Keiko Mukougawa, Toshiaki Shigeoka, Koichi Kawakami, Masashi Kawaichi and Yasumasa Ishida.

in Nucleic Acids Research

July 2012; p ublished online March 2012 .

Journal Article. Subjects: Chemistry; Biochemistry; Bioinformatics and Computational Biology; Genetics and Genomics; Molecular and Cell Biology. 7864 words.

Among the insertional mutagenesis techniques used in the current international knockout mouse project (KOMP) on the inactivation of all mouse genes in embryonic stem (ES) cells, random gene...

Go to Oxford Journals »  full text: open access

Development of a high-frequency in vivo transposon mutagenesis system for Synechocystis sp. PCC 6803 and Synechococcus elongatus PCC 7942

Kazuyuki Watabe, Mamoru Mimuro and Tohru Tsuchiya.

in Plant and Cell Physiology

November 2014; p ublished online September 2014 .

Journal Article. Subjects: Plant Sciences and Forestry; Biochemistry; Molecular and Cell Biology. 6726 words.

Synechocystis sp. PCC 6803 (Synechocystis) is the first sequenced photosynthetic organism and has two advantages: natural transformation and light-activated heterotrophic...

Go to Oxford Journals »  abstract

A new approach for the identification and cloning of genes: the pBACwich system using Cre/lox site-specific recombination

Sangdun Choi, Dilara Begum, Heather Koshinsky, David W. Ow and Rod A. Wing.

in Nucleic Acids Research

April 2000; p ublished online April 2000 .

Journal Article. Subjects: Chemistry; Biochemistry; Bioinformatics and Computational Biology; Genetics and Genomics; Molecular and Cell Biology. 5222 words.

With current plant transformation methods (Agrobacterium, biolistics and protoplast fusion), insertion of DNA into the genome occurs randomly and in many instances at multiple sites....

Go to Oxford Journals »  full text

generalized least squares

Overview page. Subjects: Probability and Statistics.

(GLS)

The extension of the method of least squares procedure to the case where the observations have been taken on random variables that are not all independent of one another. The...

See overview in Oxford Index

A new distance measure for comparing sequence profiles based on path lengths along an entropy surface

Gary Benson.

in Bioinformatics

October 2002; p ublished online October 2002 .

Journal Article. Subjects: Bioinformatics and Computational Biology. 0 words.

We describe a new distance measure for comparing DNA sequence profiles. For this measure, columns in a multiple alignment are treated as character frequency vectors (sum of the frequencies...

Go to Oxford Journals »  full text   » abstract

Probability density of the multipole vectors for a Gaussian cosmic microwave background

Mark R. Dennis and Kate Land.

in Monthly Notices of the Royal Astronomical Society

January 2008; p ublished online December 2007 .

Journal Article. Subjects: Astronomy and Astrophysics. 8085 words.

We review Maxwell's multipole vectors, and elucidate some of their mathematical properties, with emphasis on the application of this tool to the cosmic microwave background (CMB). In...

Go to Oxford Journals »  full text   » abstract