
Uniqueness and stability for the solution of a nonlinear least squares problem
In this paper, we focus on the nonlinear least squares: _𝐱∈ℍ^d A𝐱𝐛 wh...
read it

Sparse phase retrieval via Phaseliftoff
The aim of sparse phase retrieval is to recover a ksparse signal 𝐱_0∈ℂ^...
read it

Graph Sparsification by Universal Greedy Algorithms
Graph sparsification is to approximate an arbitrary graph by a sparse gr...
read it

Performance bound of the intensitybased model for noisy phase retrieval
The aim of noisy phase retrieval is to estimate a signal x_0∈C^d from m ...
read it

The recovery of complex sparse signals from few phaseless measurements
We study the stable recovery of complex ksparse signals from as few pha...
read it

Almost Everywhere Generalized Phase Retrieval
The aim of generalized phase retrieval is to recover x∈F^d from the quad...
read it

The estimation performance of nonlinear least squares for phase retrieval
Suppose that y= Ax_0+η where x_0∈R^d is the target signal and η∈R^m is a...
read it

Subset Selection for Matrices with Fixed Blocks
Subset selection for matrices is the task of extracting a column submat...
read it

On DC based Methods for Phase Retrieval
In this paper, we develop a new computational approach which is based on...
read it

Improved bounds for the RIP of Subsampled Circulant matrices
In this paper, we study the restricted isometry property of partial rand...
read it

Solving Systems of Quadratic Equations via Exponentialtype Gradient Descent Algorithm
We consider the rank minimization problem from quadratic measurements, i...
read it

Phase retrieval from the norms of affine transformations
In this paper, we consider the generalized phase retrieval from affine m...
read it

Phase retrieval from the magnitudes of affine measurements
In this paper, we consider the generalized phase retrieval from affine m...
read it

Stochastic Variance Reduced Riemannian Eigensolver
We study the stochastic Riemannian gradient algorithm for matrix eigend...
read it

On Bspline framelets derived from the unitary extension principle
Spline wavelet tight frames of RonShen have been used widely in frame b...
read it

Discrete schemes for Gaussian curvature and their convergence
In this paper, several discrete schemes for Gaussian curvature are surve...
read it
Zhiqiang Xu
is this you? claim profile