3.7k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of HoustonUS75 papers
- University of Hong KongHK54 papers
- Beijing Normal UniversityCN35 papers
- Chinese Academy of SciencesCN33 papers
- Hong Kong University of Science and TechnologyHK33 papers
- City University of Hong KongHK28 papers
- Chinese University of Hong KongHK23 papers
- Beijing Normal-Hong Kong Baptist UniversityCN21 papers
- National University of SingaporeSG21 papers
- Fudan UniversityCN18 papers
- Southern University of Science and TechnologyCN18 papers
- Zhejiang UniversityCN16 papers
40 papers · 1 filter
Outlier Detection In Large-scale Traffic Data By Naïve Bayes Method and Gaussian Mixture Model Method
Philip Lam, Lili Wang, Henry Y. T. Ngan +2
It is meaningful to detect outliers in traffic data for traffic management. However, this is a massive task for people from large-scale database to distinguish outliers. In this pa…
Automatic Incident Classification for Big Traffic Data by Adaptive Boosting SVM
Li-Li Wang, Henry Y. T. Ngan, Nelson H. C. Yung
Modern cities experience heavy traffic flows and congestions regularly across space and time. Monitoring traffic situations becomes an important challenge for the Traffic Control a…
Ab initio derivation of multipolar expansion of optical force
Yikun Jiang, Jack Ng, Zhifang Lin
Like many other physical quantities, the optical force can be expanded using multipole expansion, which has been done in [Nat. Photon. 5, 531], up to electric octupole order. Howev…
Robust data assimilation using and Huber norms
Vishwas Rao, Adrian Sandu, Michael Ng +1
Data assimilation is the process to fuse information from priors, observations of nature, and numerical models, in order to obtain best estimates of the parameters or state of a ph…
Greedy Forward Regression for Variable Screening
Ming-Yen Cheng, Sanying Feng, Gaorong Li +1
Two popular variable screening methods under the ultra-high dimensional setting with the desirable sure screening property are the sure independence screening (SIS) and the forward…
Universal relationships between optical force/torque and orbital versus spin momentum/angular momentum of light
Yikun Jiang, Huajin Chen, Jun Chen +2
We establish universal relationships between optical force/torque on a general particle and different parts of linear and angular momentum (AM) of generic monochromatic optical fie…
An adaptive-to-model test for partially parametric single-index models
Xuehu Zhu, Xu Guo, Lixing Zhu
Residual marked empirical process-based tests are commonly used in regression models. However, they suffer from data sparseness in high-dimensional space when there are many covari…
Electromagnetic stress at the boundary: photon pressure or tension?
Shubo Wang, Jack Ng, Meng Xiao +1
It is well known that incident photons carrying momentum hk exert a positive photon pressure. But if light is impinging from a negative refractive medium in which hk is directed to…
Heteroscedasticity Testing for Regression Models: A Dimension Reduction-based Model Adaptive
Xuehu Zhu, Fei Chen, Xu Guo +1
Heteroscedasticity testing is of importance in regression analysis. Existing local smoothing tests suffer severely from curse of dimensionality even when the number of covariates i…
Dimension reduction-based significance testing in nonparametric regression
Xuehu Zhu, Lixing Zhu
A dimension reduction-based adaptive-to-model test is proposed for significance of a subset of covariates in the context of a nonparametric regression model. Unlike existing local…
A robust adaptive-to-model enhancement test for parametric single-index models
Cuizhen Niu, Lixing Zhu
In the research on checking whether the underlying model is of parametric single-index structure with outliers in observations, the purpose of this paper is two-fold. First, a test…
Bayesian detection of embryonic gene expression onset in C. elegans
Jie Hu, Zhongying Zhao, Hari Krishna Yalamanchili +3
To study how a zygote develops into an embryo with different tissues, large-scale 4D confocal movies of C. elegans embryos have been produced recently by experimental biologists. H…
Decoupling Elastic Waves and Its Applications
Hongyu Liu, Jingni Xiao
In this paper, we consider time-harmonic elastic wave scattering governed by the Lamé system. It is known that the elastic wave field can be decomposed into the shear and compressi…
Full and Partial Cloaking in Electromagnetic Scattering
Youjun Deng, Hongyu Liu, Gunther Uhlmann
In this paper, we consider two regularized transformation-optics cloaking schemes for electromagnetic (EM) waves. Both schemes are based on the blowup construction with the generat…
Dissecting GPU Memory Hierarchy through Microbenchmarking
Xinxin Mei, Xiaowen Chu
Memory access efficiency is a key factor in fully utilizing the computational power of graphics processing units (GPUs). However, many details of the GPU memory hierarchy are not r…
Lumpings of Algebraic Markov Chains arise from Subquotients
C. Y. Amy Pang
A function on the state space of a Markov chain is a "lumping" if observing only the function values gives a Markov chain. We give very general conditions for lumpings of a large c…
Manipulating Magnetism at Organic/Ferromagnetic Interfaces by Fullerene-Induced Surface Reconstruction
R. Pang, X. Shi, M. A. van Hove
Fullerenes have several advantages as potential materials for organic spintronics. Through a theoretical first-principles study, we report that fullerene C adsorption can in…
Enhancements of nonparametric generalized likelihood ratio test: Bias-correction and dimension reduction
Cuizhen Niu, Xu Guo, Lixing Zhu
Nonparametric generalized likelihood ratio test is popularly used for model checking for regressions. However, there are two issues that may be the barriers for its powerfulness. F…
Unfolding large-scale online collaborative human dynamics
Yilong Zha, Tao Zhou, Changsong Zhou
Large-scale interacting human activities underlie all social and economic phenomena, but quantitative understanding of regular patterns and mechanism is very challenging and still…
Dirichlet-Neumann Waveform Relaxation Method for the 1D and 2D Heat and Wave Equations in Multiple subdomains
Martin J. Gander, Felix Kwok, Bankim C. Mandal
We present a Waveform Relaxation (WR) version of the Dirichlet-Neumann algorithm, formulated specially for multiple subdomains splitting for general parabolic and hyperbolic proble…
On Joint Estimation of Gaussian Graphical Models for Spatial and Temporal Data
Zhixiang Lin, Tao Wang, Can Yang +1
In this paper, we first propose a Bayesian neighborhood selection method to estimate Gaussian Graphical Models (GGMs). We show the graph selection consistency of this method in the…
Sample-dependent first-passage time distribution in a disordered medium
Liang Luo, Lei-Han Tang
Above two dimensions, diffusion of a particle in a medium with quenched random traps is believed to be well-described by the annealed continuous time random walk (CTRW). We propose…
A Three-stage Approach for Segmenting Degraded Color Images: Smoothing, Lifting and Thresholding (SLaT)
Xiaohao Cai, Raymond Chan, Mila Nikolova +1
In this paper, we propose a SLaT (Smoothing, Lifting and Thresholding) method with three stages for multiphase segmentation of color images corrupted by different degradations: noi…
Energy dissipation in an adaptive molecular circuit
Shou-Wen Wang, Yueheng Lan, Lei-Han Tang
The ability to monitor nutrient and other environmental conditions with high sensitivity is crucial for cell growth and survival. Sensory adaptation allows a cell to recover its se…