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Determining the dimension of the central subspace and central mean subspace

Biometrika, 2008
The central subspace and central mean subspace are two important targets of sufficient dimension reduction. We propose a weighted chi-squared test to determine their dimensions based on matrices whose column spaces are exactly equal to the central subspace or the central mean subspace.
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Partial central subspace and sliced average variance estimation

Journal of Statistical Planning and Inference, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shao, Yongwu   +2 more
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Feature filter for estimating central mean subspace and its sparse solution

Computational Statistics & Data Analysis, 2021
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Wang, Pei   +3 more
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Isotropic subspaces in symmetric composition algebras and Kummer subspaces in central simple algebras of degree 3

Manuscripta Mathematica, 2011
A composition algebra is a (non-associative) algebra \((C, \ast )\) over a field \(F\), endowed with a non-degenerate quadratic ``norm form'' \(N: C \to F\), such that \(N(a \ast b) = N(a)N(b)\), \(a,b\in C\). Two special classes of these algebras have been fully classified.
Matzri, Eliyahu, Vishne, Uzi
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Analysing nonlinear time series with central subspace

Journal of Statistical Computation and Simulation, 2012
Traditionally, time series analysis involves building an appropriate model and using either parametric or nonparametric methods to make inference about the model parameters. Motivated by recent developments for dimension reduction in time series, an empirical application of sufficient dimension reduction (SDR) to nonlinear time series modelling is ...
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Fused Estimators of the Central Subspace in Sufficient Dimension Reduction

Journal of the American Statistical Association, 2014
When studying the regression of a univariate variable Y on a vector x of predictors, most existing sufficient dimension-reduction (SDR) methods require the construction of slices of Y to estimate moments of the conditional distribution of X given Y. But there is no widely accepted method for choosing the number of slices, while a poorly chosen slicing ...
R. Dennis Cook, Xin Zhang
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Subspace Controllability of Quantum Ising Spin Networks with a Central Spin

2019 18th European Control Conference (ECC), 2019
We consider a class of spin networks where each spin in a certain set interacts via Ising coupling with a single central spin. This is a common situation for instance in NV centers in diamonds. Due to the permutation symmetries of the network, the system is not globally controllable but it displays invariant subspaces of the underlying Hilbert space ...
Francesca Albertini   +1 more
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Estimation and inference on central mean subspace for multivariate response data

Computational Statistics & Data Analysis, 2015
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Zhu, Liping, Zhong, Wei
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Dimension reduction estimation for central mean subspace with missing multivariate response

Journal of Multivariate Analysis, 2019
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Fan, Guo-Liang   +2 more
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