A CLT for the LSS of large-dimensional sample covariance matrices with diverging spikes
Z Liu, J Hu, Z Bai, H Song - The Annals of Statistics, 2023 - projecteuclid.org
A CLT for the LSS of large-dimensional sample covariance matrices with diverging spikes
Page 1 The Annals of Statistics 2023, Vol. 51, No. 5, 2246–2271 https://doi.org/10.1214/23-AOS2333 …
Page 1 The Annals of Statistics 2023, Vol. 51, No. 5, 2246–2271 https://doi.org/10.1214/23-AOS2333 …
An F-ratio-based method for estimating the number of active sources in MEG
Introduction Magnetoencephalography (MEG) is a powerful technique for studying the
human brain function. However, accurately estimating the number of sources that contribute …
human brain function. However, accurately estimating the number of sources that contribute …
Source number of single-channel signals intelligent estimation via signal reconstruction
Y Zhang, Y Gao - Digital Signal Processing, 2023 - Elsevier
As wireless communication advances, the spectrum is becoming more crowded and
overlapping, making it essential to determine the number of signal sources based on the …
overlapping, making it essential to determine the number of signal sources based on the …
A new second-order dynamical method for solving linear inverse problems in Hilbert spaces
Q Huang, R Gong, Y Zhang - Applied Mathematics and Computation, 2024 - Elsevier
A new second-order dynamic method (SODM) is proposed for solving ill-posed linear
inverse problems in Hilbert spaces. The SODM can be viewed as a combination of Tikhonov …
inverse problems in Hilbert spaces. The SODM can be viewed as a combination of Tikhonov …
Damped dynamical systems for solving equations and optimization problems
We present an approach for solving optimization problems with or without constrains which
we call Dynamical Functional Particle Method (DFMP). The method consists of formulating …
we call Dynamical Functional Particle Method (DFMP). The method consists of formulating …
A CLT for the LSS of large dimensional sample covariance matrices with unbounded dispersions
Z Liu, J Hu, Z Bai, H Song - arXiv preprint arXiv:2205.07280, 2022 - arxiv.org
In this paper, we establish the central limit theorem (CLT) for linear spectral statistics (LSS)
of large-dimensional sample covariance matrix when the population covariance matrices …
of large-dimensional sample covariance matrix when the population covariance matrices …
A coupled complex boundary expanding compacts method for inverse source problems
Y Zhang, R Gong, M Gulliksson… - Journal of Inverse and Ill …, 2019 - degruyter.com
In this paper, we consider an inverse source problem for elliptic partial differential equations
with both Dirichlet and Neumann boundary conditions. The unknown source term is to be …
with both Dirichlet and Neumann boundary conditions. The unknown source term is to be …
Quantifying time-varying sources in magnetoencephalography—A discrete approach
Quantifying time-varying sources in magnetoencephalography-A discrete approach Page 1 The
Annals of Applied Statistics 2020, Vol. 14, No. 3, 1379–1408 https://doi.org/10.1214/19-AOAS1321 …
Annals of Applied Statistics 2020, Vol. 14, No. 3, 1379–1408 https://doi.org/10.1214/19-AOAS1321 …
SUPPLEMENTARY MATERIALS: QUANTIFYING TIME-VARYING SOURCES IN MAGNETOENCEPHALOGRAPHY–A DISCRETE APPROACH
1. Illustration of the Switch Procedure. In Section 2.4 of Yao et al.(2018a), the switch
procedure was proposed to reduce the computational complexity of calculating the discrete …
procedure was proposed to reduce the computational complexity of calculating the discrete …
Depth-invariant beamforming for functional connectivity with MEG data
J Zhang - Statistics and Its Interface, 2022 - kar.kent.ac.uk
The conventional beamformers that reconstruct the cerebral origin of brain activity measured
outside the head via electro-and magnetoencephalography (EEG/MEG) suffer from depth …
outside the head via electro-and magnetoencephalography (EEG/MEG) suffer from depth …