14 citations · 47 across the 22 of their papers we have counts for
22 papers
Simultaneously Optimizing Perturbations and Positions for Black-box Adversarial Patch Attacks
Xingxing Wei, Ying Guo, Jie Yu +1
Adversarial patch is an important form of real-world adversarial attack that brings serious risks to the robustness of deep neural networks. Previous methods generate adversarial p…
Uniform far-field asymptotics of the two-layered Green function in 2D and application to wave scattering in a two-layered medium
Long Li, Jiansheng Yang, Bo Zhang +1
In this paper, we establish new results for the uniform far-field asymptotics of the two-layered Green function (together with its derivatives) in 2D in the frequency domain. To th…
A physical perturbation based study on the prediction of free-fall disks with chaotic modes in the water
Tianzhuang Xu, Bo Zhang, Jing Li +2
We report a phenomenon that physical perturbations sometimes can benefit the certainty of a free-fall motion with chaotic modes, albeit, as commonly believed, they can ruin it. We…
Uniqueness in inverse diffraction grating problems with infinitely many plane waves at a fixed frequency
Xiaoxu Xu, Guanghui Hu, Bo Zhang +1
This paper is concerned with the inverse diffraction problems by a periodic curve with Dirichlet boundary condition in two dimensions. It is proved that the periodic curve can be u…
The Nyström method for elastic wave scattering by unbounded rough surfaces
Jianliang Li, Xiaoli Liu, Bo Zhang +1
We consider the numerical algorithm for the two-dimensional time-harmonic elastic wave scattering by unbounded rough surfaces with Dirichlet boundary condition. A Nyström method is…
Modified sampling method with near field measurements
Xiaodong Liu, Shixu Meng, Bo Zhang
This paper investigates the inverse scattering problems using sampling methods with near field measurements. The near field measurements appear in two classical inverse scattering…
Simultaneous recovery of a locally rough interface and the embedded obstacle with its surrounding medium
Jiaqing Yang, Jianliang Li, Bo Zhang
Consider the scattering of time-harmonic point sources by an infinite locally rough interface with bounded obstacles embedded in the lower half-space. The model problem is first re…
A linear sampling method for inverse acoustic scattering by a locally rough interface
Jianliang Li, Jiaqing Yang, Bo Zhang
This paper is concerned with the inverse problem of time-harmonic acoustic scattering by an unbounded, locally rough interface which is assumed to be a local perturbation of a plan…
An approximate factorization method for inverse acoustic scattering with phaseless total-field data
Bo Zhang, Haiwen Zhang
This paper is concerned with the inverse acoustic scattering problem with phaseless total-field data at a fixed frequency. An approximate factorization method is developed to numer…
A novel integral equation for scattering by locally rough surfaces and application to the inverse problem: the Neumann case
Fenglong Qu, Bo Zhang, Haiwen Zhang
This paper is concerned with direct and inverse scattering by a locally perturbed infinite plane (called a locally rough surface in this paper) on which a Neumann boundary conditio…
Uniqueness in inverse scattering problems with phaseless far-field data at a fixed frequency. II
Xiaoxu Xu, Bo Zhang, Haiwen Zhang
This paper is concerned with uniqueness in inverse acoustic scattering with phaseless far-field data at a fixed frequency. In our previous work ({\em SIAM J. Appl. Math. \bf78} (20…
Target reconstruction with a reference point scatterer using phaseless far field patterns
Xia Ji, Xiaodong Liu, Bo Zhang
An important property of the phaseless far field patterns with incident plane waves is the translation invariance. Thus it is impossible to reconstruct the location of the underlyi…
Near-field imaging of an unbounded elastic rough surface with a direct imaging method
Xiaoli Liu, Bo Zhang, Haiwen Zhang
This paper is concerned with the inverse scattering problem of time-harmonic elastic waves by an unbounded rigid rough surface. A direct imaging method is developed to reconstruct…
A direct imaging method for inverse scattering by unbounded rough surfaces
Xiaoli Liu, Bo Zhang, Haiwen Zhang
This paper is concerned with the inverse scattering problem by an unbounded rough surface. A direct imaging method is proposed to reconstruct the rough surface from the scattered n…
An FFT-based algorithm for efficient computation of Green's functions for the Helmholtz and Maxwell's equations in periodic domains
Bo Zhang, Ruming Zhang
The integral equation method is widely used in numerical simulations of 2D/3D acoustic and electromagnetic scattering problems, which needs a large number of values of the Green's…
Uniqueness in inverse scattering problems with phaseless far-field data at a fixed frequency
Xiaoxu Xu, Bo Zhang, Haiwen Zhang
This paper is concerned with uniqueness in inverse acoustic scattering with phaseless far-field data at a fixed frequency. The main difficulty of this problem is the so-called tran…
Analysis of Transient Acoustic-Elastic Interaction in an Unbounded Structure
Yixian Gao, Peijun Li, Bo Zhang
Consider the wave propagation in a two-layered medium consisting of a homogeneous compressible air or fluid on top of a homogeneous isotropic elastic solid. The interface between t…
Fast Parallel SVM using Data Augmentation
Hugh Perkins, Minjie Xu, Jun Zhu +1
As one of the most popular classifiers, linear SVMs still have challenges in dealing with very large-scale problems, even though linear or sub-linear algorithms have been developed…
Fast Sampling for Bayesian Max-Margin Models
Wenbo Hu, Jun Zhu, Bo Zhang
Bayesian max-margin models have shown superiority in various practical applications, such as text categorization, collaborative prediction, social network link prediction and crowd…
Dropout Training for Support Vector Machines
Ning Chen, Jun Zhu, Jianfei Chen +1
Dropout and other feature noising schemes have shown promising results in controlling over-fitting by artificially corrupting the training data. Though extensive theoretical and em…
A novel integral equation for scattering by locally rough surfaces and application to the inverse problem
Haiwen Zhang, Bo Zhang
This paper is concerned with the direct and inverse acoustic or electromagnetic scattering problems by a locally perturbed, perfectly reflecting, infinite plane (which is called a…
A new embedding quality assessment method for manifold learning
Peng Zhang, Yuanyuan Ren, Bo Zhang
Manifold learning is a hot research topic in the field of computer science. A crucial issue with current manifold learning methods is that they lack a natural quantitative measure…