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Robust and Resistant Regularized Covariance Matrices
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2023
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David E. Tyler
Mengxi Yi
Klaus Nordhausen
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Linear Pooling of Sample Covariance Matrices
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2021
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Elias Raninen
David E. Tyler
Esa Ollila
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Asymptotic and bootstrap tests for subspace dimension
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2021
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Klaus Nordhausen
Hannu Oja
David E. Tyler
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On the variability of the sample covariance matrix under complex elliptical distributions
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2021
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Elias Raninen
Esa Ollila
David E. Tyler
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On the Variability of the Sample Covariance Matrix Under Complex Elliptical Distributions
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2021
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Elias Raninen
Esa Ollila
David E. Tyler
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Shrinking the Covariance Matrix Using Convex Penalties on the Matrix-Log Transformation
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2020
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Mengxi Yi
David E. Tyler
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Linear pooling of sample covariance matrices
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2020
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Elias Raninen
David E. Tyler
Esa Ollila
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Breakdown points of penalized and hybrid M-estimators of covariance
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2020
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David E. Tyler
Mengxi Yi
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Shrinking the Covariance Matrix Using Convex Penalties on the Matrix-Log Transformation
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2020
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Mengxi Yi
David E. Tyler
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Shrinking the Covariance Matrix using Convex Penalties on the Matrix-Log Transformation
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2020
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Mengxi Yi
David E. Tyler
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PDF
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Lassoing eigenvalues
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2019
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David E. Tyler
Mengxi Yi
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Shrinking the Sample Covariance Matrix using Convex Penalties on the Matrix-Log Transformation
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2019
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David E. Tyler
Mengxi Yi
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Lassoing Eigenvalues
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2018
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David E. Tyler
Mengxi Yi
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Asymptotic and Bootstrap Tests for the Dimension of the Non-Gaussian Subspace
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2017
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Klaus Nordhausen
Hannu Oja
David E. Tyler
Joni Virta
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Asymptotic and bootstrap tests for subspace dimension
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2016
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Klaus Nordhausen
Hannu Oja
David E. Tyler
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Simultaneous penalized M-estimation of covariance matrices using geodesically convex optimization
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2016
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Esa Ollila
Ilya Soloveychik
David E. Tyler
Ami Wiesel
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Geodesic Convexity and Regularized Scatter Estimators
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2016
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Lutz Duembgen
David E. Tyler
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PDF
Chat
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On the eigenvalues of the spatial sign covariance matrix in more than two dimensions
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2016
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Alexander Dürre
David E. Tyler
Daniel Vogel
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On the Computation of Symmetrized M-Estimators of Scatter
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2016
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J.K. Miettinen
Klaus Nordhausen
Sara Taskinen
David E. Tyler
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Asymptotic and bootstrap tests for subspace dimension
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2016
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Klaus Nordhausen
Hannu Oja
David E. Tyler
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Simultaneous penalized M-estimation of covariance matrices using geodesically convex optimization
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2016
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Esa Ollila
Ilya Soloveychik
David E. Tyler
Ami Wiesel
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Geodesic Convexity and Regularized Scatter Estimators
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2016
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Lutz Duembgen
David E. Tyler
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On the eigenvalues of the spatial sign covariance matrix in more than two dimensions
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2015
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Alexander Dürre
David E. Tyler
Daniel Vogel
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A cautionary note on robust covariance plug-in methods
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2015
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Klaus Nordhausen
David E. Tyler
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Generalized MM-Tests for Symmetry
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2015
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Jue Wang
David E. Tyler
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On the eigenvalues of the spatial sign covariance matrix in more than two dimensions
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2015
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Alexander Dürre
David E. Tyler
Daniel Vogel
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Corrigendum to “The spatial sign covariance matrix with unknown location” [J. Multivariate Anal. 130 (2014) 107–117]
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2014
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Alexander Dürre
Daniel Vogel
David E. Tyler
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PDF
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Robust estimators for nondecomposable elliptical graphical models
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2014
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Daniel Vogel
David E. Tyler
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PDF
Chat
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Regularized <formula formulatype="inline"><tex Notation="TeX">$M$</tex> </formula>-Estimators of Scatter Matrix
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2014
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Esa Ollila
David E. Tyler
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S‐Estimators
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2014
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David E. Tyler
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A characterization of elliptical distributions and some optimality properties of principal components for functional data
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2014
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Graciela Boente
Matías Salibián‐Barrera
David E. Tyler
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PDF
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The asymptotic inadmissibility of the spatial sign covariance matrix for elliptically symmetric distributions
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2014
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Andrew F. Magyar
David E. Tyler
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PDF
Chat
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The spatial sign covariance matrix with unknown location
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2014
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Alexander Dürre
Daniel Vogel
David E. Tyler
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Breakdown Properties of the M-Estimators of Multivariate Scatter
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2014
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David E. Tyler
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The asymptotic inadmissibility of the spatial sign covariance matrix for elliptically symmetric distributions
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2013
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Andrew F. Magyar
David E. Tyler
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The spatial sign covariance matrix with unknown location
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2013
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Alexander Dürre
Daniel Vogel
David E. Tyler
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The asymptotic inadmissibility of the spatial sign covariance matrix for elliptically symmetric distributions
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2013
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Andrew F. Magyar
David E. Tyler
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Distribution-free detection under complex elliptically symmetric clutter distribution
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2012
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Esa Ollila
David E. Tyler
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Robust functional principal components: A projection-pursuit approach
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2011
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Juan Lucas Bali
Graciela Boente
David E. Tyler
Jane-Ling Wang
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The asymptotic efficiency of the spatial median for elliptically symmetric distributions
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2011
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Andrew F. Magyar
David E. Tyler
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A note on multivariate location and scatter statistics for sparse data sets
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2010
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David E. Tyler
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PDF
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Invariant Co-Ordinate Selection
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2009
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David E. Tyler
Frank Critchley
Lutz Dümbgen
Hannu Oja
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Invariant co-ordinate selection (with discussion)
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2009
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David E. Tyler
Frank Critchley
Lutz Dümbgen
Hannu Oja
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Quantile Scale Curves
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2009
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Kesar Singh
David E. Tyler
Jingshan Zhang
Somnath Mukherjee
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PDF
Chat
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Tests and estimates of shape based on spatial signs and ranks
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2008
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Seija Sirkiä
Sara Taskinen
Hannu Oja
David E. Tyler
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Robust Statistics: Theory and Methods
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2008
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David E. Tyler
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Robust Statistics: Theory and Methods. Ricardo A. Maronna, R. Douglas Martin, and Victor J. Yohai
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2008
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David E. Tyler
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Tools for Exploring Multivariate Data: The Package<b>ICS</b>
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2008
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Klaus Nordhausen
Hannu Oja
David E. Tyler
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Robust Statistical Methods with R
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2007
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David E. Tyler
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ICS: Tools for Exploring Multivariate Data via ICS/ICA
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2007
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Klaus Nordhausen
Andreas Alfons
Aurore Archimbaud
Hannu Oja
Anne Ruiz‐Gazen
David E. Tyler
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PDF
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On the maximum bias functions of MM-estimates and constrained M-estimates of regression
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2007
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José R. Berrendero
Beatriz V.M. Mendes
David E. Tyler
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S‐Estimators
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2005
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David E. Tyler
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Robust regression for data with multiple structures
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2005
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Haifeng Chen
Peter Meer
David E. Tyler
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DISCUSSION OF "BREAKDOWN AND GROUPS" BY P. L. DAVIES AND U. GATHER
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2005
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David E. Tyler
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PDF
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On the Breakdown Properties of Some Multivariate M-Functionals*
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2005
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Lutz Dümbgen
David E. Tyler
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<scp><i>S</i></scp>‐Estimators
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2004
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David E. Tyler
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On the finite sample breakdown points of redescending M-estimates of location
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2004
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Zhiqiang Chen
David E. Tyler
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On the behavior of Tukey's depth and median under symmetric stable distributions
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2003
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Zhiqiang Chen
David E. Tyler
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PDF
Chat
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The influence function and maximum bias of Tukey's median
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2002
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Zhiqiang Chen
David E. Tyler
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PDF
Chat
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Regularity and Uniqueness for Constrained M-Estimates and Redescending M-Estimates
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2001
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John T. Kent
David E. Tyler
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Robust Estimation for Chemical Concentration Data Subject to Detection Limits
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2001
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Leo R. Korn
David E. Tyler
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PDF
Chat
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On the uniqueness of S-functionals and M-functionals under nonelliptical distributions
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2000
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Kay Tatsuoka
David E. Tyler
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Comment
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1998
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Peter Meer
David E. Tyler
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On the Breakdown Properties of Two M-Functionals of Scatter
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1997
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Lutz Dümbgen
David E. Tyler
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PDF
Chat
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Constrained M-estimation for multivariate location and scatter
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1996
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John T. Kent
David E. Tyler
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Constrained M-Estimation for Regression
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1996
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Beatriz Vaz de Melo Mendes
David E. Tyler
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The Asymptotic Distribution of Singular-Values with Applications to Canonical Correlations and Correspondence Analysis
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1994
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M. L. Eaton
David E. Tyler
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PDF
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Finite Sample Breakdown Points of Projection Based Multivariate Location and Scatter Statistics
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1994
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David E. Tyler
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A curious likelihood identity for the multivariate t-distribution
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1994
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John T. Kent
David E. Tyler
Yahuda. Vard
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PDF
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Redescending $M$-Estimates of Multivariate Location and Scatter
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1991
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John T. Kent
David E. Tyler
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PDF
Chat
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On Wielandt's Inequality and Its Application to the Asymptotic Distribution of the Eigenvalues of a Random Symmetric Matrix
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1991
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Morris L. Eaton
David E. Tyler
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Some Issues in the Robust Estimation of Multivariate Location and Scatter
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1991
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David E. Tyler
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Some Results on the Existence, Uniqueness, and Computation of the M-Estimates of Multivariate Location and Scatter
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1988
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David E. Tyler
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Maximum likelihood estimation for the wrapped Cauchy distribution
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1988
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John T. Kent
David E. Tyler
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Statistical Analysis for the Angular Central Gaussian Distribution on the Sphere
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1987
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David E. Tyler
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PDF
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A Distribution-Free $M$-Estimator of Multivariate Scatter
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1987
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David E. Tyler
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Statistical analysis for the angular central Gaussian distribution on the sphere
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1987
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David E. Tyler
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PDF
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Magnitudinal Effects in the Normal Multivariate Model
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1986
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Irwin Guttman
Ulrich Menzefricke
David E. Tyler
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PDF
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A Class of Asymptotic Tests for Principal Component Vectors
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1983
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David E. Tyler
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PDF
Chat
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The Asymptotic Distribution of Principal Component Roots Under Local Alternatives to Multiple Roots
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1983
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David E. Tyler
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Robustness and Efficiency Properties of Scatter Matrices
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1983
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David E. Tyler
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Robustness and efficiency properties of scatter matrices
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1983
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David E. Tyler
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Radial estimates and the test for sphericity
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1982
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David E. Tyler
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A Counterexample To Miller And Farr's Algorithm For The Index Of Redundancy
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1982
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David E. Tyler
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