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Results for "Hui Li"

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A New Class of Nonsymmetric Multivariate Dependence MeasuresNov 09 2015Dec 03 2015Following our previous work on copula-based nonsymmetric bivariate dependence measures, we propose a new set of conditions on nonsymmetric multivariate dependence measures which characterize both independence and complete dependence of one random variable ... More
Certain circle actions on Kaehler manifoldsNov 05 2012May 30 2013Let the circle act holomorphically on a compact K\"ahler manifold $M$ of complex dimension $n$ with moment map $\phi\colon M\to\R$. Assume the critical set of $\phi$ consists of 3 connected components, the extrema being isolated points. We show that $M$ ... More
Hamiltonian circle actions with isolated fixed pointsJul 08 2014Jan 26 2019Let the circle act in a Hamiltonian fashion on a compact symplectic manifold $(M, \omega)$ of dimension $2n$. Then the $S^1$-action has at least $n+1$ fixed points. We consider the cases when the fixed point set consists of precisely $n+1$ and $n+2$ isolated ... More
Hamiltonian S^1-manifolds of dimension 2n with n+2 isolated fixed pointsFeb 15 2015Let $(M, \omega)$ be a compact $2n$-dimensional symplectic manifold equipped with a Hamiltonian $S^1$ action with $n+2$ isolated fixed points. We will see that $n$ must be even. Such an example is $\Gt_2(\R^{n+2})$, the Grassmanian of oriented $2$-planes ... More
Nonsymmetric Dependence Measures: the Discrete CaseDec 25 2015Following our previous work on copula-based nonsymmetric dependence measures, we introduce similar measures for discrete random variables. The measures cover the range between two extremes: independence and complete dependence, which take minimum value ... More
Twisted Topological Graph AlgebrasApr 30 2014We define the notion of a twisted topological graph algebra associated to a topological graph and a $1$-cocycle on its edge set. We prove a stronger version of a Vasselli's result. We expand Katsura's results to study twisted topological graph algebras. ... More
The fundamental groups of contact toric manifoldsMar 21 2017Jan 01 2019Let $M$ be a connected compact contact toric manifold. We first list those manifolds which are not of Reeb type and compute their fundamental groups; we see that, their fundamental groups are infinite abelian. If $M$ is of Reeb type, we show that $\pi_1(M)$ ... More
The fundamental group of symplectic manifolds with Hamiltonian SU(2) or SO(3) actionsNov 30 2004Jul 13 2005Let $(M, \omega)$ be a connected compact symplectic manifold equipped with a Hamiltonian SU(2) or SO(3) action. We prove that, as fundamental group of topological spaces, $\pi_1(M)=\pi_1(M_{red})$, where $M_{red}$ is the symplectic quotient at any value ... More
The fundamental group of $G$-manifoldsSep 17 2009Nov 04 2012Let $G$ be a connected compact Lie group, and let $M$ be a connected Hamiltonian $G$-manifold with equivariant moment map $\phi$. We prove that if there is a simply connected orbit $G\cdot x$, then $\pi_1(M)\cong\pi_1(M/G)$; if additionally $\phi$ is ... More
The Crossover-Distance for ISI-Correcting Decoding of Convolutional Codes in Diffusion-Based Molecular CommunicationsDec 29 2018In diffusion based molecular communication, the intersymbol interference (ISI) is an important reason for system performance degradation, which is caused by the random movement, out-of-order arrival and indistinguishability of the moleclues. In this paper, ... More
Robust estimation of isoform expression with RNA-Seq dataOct 24 2014Qualifying gene and isoform expression is one of the primary tasks for RNA-Seq experiments. Given a sequence of counts representing numbers of reads mapped to different positions (exons and junctions) of isoforms, methods based on Poisson generalized ... More
Numerical simulation of polynomial-speed convergence phenomenonMar 11 2017Nov 04 2017We provide a hybrid method that captures the polynomial speed of convergence and polynomial speed of mixing for Markov processes. The hybrid method that we introduce is based on the coupling technique and renewal theory. We propose to replace some estimates ... More
SURE Information Criteria for Large Covariance Matrix Estimation and Their Asymptotic PropertiesJun 25 2014Mar 04 2016Consider $n$ independent and identically distributed $p$-dimensional Gaussian random vectors with covariance matrix $\Sigma.$ The problem of estimating $\Sigma$ when $p$ is much larger than $n$ has received a lot of attention in recent years. Yet little ... More
Hamiltonian circle actions with minimal fixed setsMay 25 2009Nov 04 2012Consider an effective Hamiltonian circle action on a compact symplectic $2n$-dimensional manifold $(M, \omega)$. Assume that the fixed set $M^{S^1}$ is {\em minimal}, in two senses: it has exactly two components, $X$ and $Y$, and $\dim(X) + \dim(Y) = ... More
Spatial Localization and Relativistic Transformation of Quantum SpinsSep 19 2003Jul 30 2004The purity of a reduced state for spins that is pure in the rest frame will most likely appear to degrade because spin and momentum become mixed when viewed by a moving observer. We show that such a boost-induced decrease in spin purity observed in a ... More
KMS States of Self-Similar $k$-Graph C*-AlgebrasMay 22 2018Let $G$ be a countable discrete amenable group, and $\Lambda$ be a strongly connected finite $k$-graph. If $(G,\Lambda)$ is a pseudo free and locally faithful self-similar action which satisfies the finite-state condition, then the structure of the KMS ... More
Reading Car License Plates Using Deep Convolutional Neural Networks and LSTMsJan 21 2016In this work, we tackle the problem of car license plate detection and recognition in natural scene images. Inspired by the success of deep neural networks (DNNs) in various vision applications, here we leverage DNNs to learn high-level features in a ... More
Rejoinder: One-step sparse estimates in nonconcave penalized likelihood modelsAug 07 2008We would like to take this opportunity to thank the discussants for their thoughtful comments and encouragements on our work [arXiv:0808.1012]. The discussants raised a number of issues from theoretical as well as computational perspectives. Our rejoinder ... More
Self-Similar $k$-Graph C*-AlgebrasDec 21 2017Jan 15 2018In this paper, we introduce a notion of a self-similar action of a group $G$ on a $k$-graph $\Lambda$, and associate it a universal C*-algebra $\O_{G,\Lambda}$. We prove that $\O_{G,\Lambda}$ can be realized as the Cuntz-Pimsner algebra of a product system. ... More
Some results on unbounded absolute weak Dunford-Pettis operatorsFeb 01 2019In this paper, we characterize Banach lattices on which each Dunford-Pettis operator (or weak Dunford-Pettis) is unbounded absolute weak Dunford-Pettis operator and the converse.
Some loose ends on unbounded order convergenceSep 30 2016The notion of almost everywhere convergence has been generalized to vector lattices as unbounded order convergence, which proves a very useful tool in the theory of vector and Banach lattices. In this short note, we establish some new results on unbounded ... More
One-step sparse estimates in nonconcave penalized likelihood modelsAug 07 2008Fan and Li propose a family of variable selection methods via penalized likelihood using concave penalty functions. The nonconcave penalized likelihood estimators enjoy the oracle properties, but maximizing the penalized likelihood function is computationally ... More
Infrared and visible image fusion using a novel deep decomposition methodNov 06 2018Nov 19 2018Infrared and visible image fusion is an important problem in image fusion tasks which has been applied widely in many fields. To better preserve the useful information from source images, in this paper, we propose an effective image fusion framework using ... More
Multi-focus Noisy Image Fusion using Low-Rank RepresentationApr 25 2018Dec 18 2018In the process of image acquisition, the noise is inevitable for source image. The multi-focus noisy image fusion is a very challenging task. However, there is no truly adaptive noisy image fusion approaches at present. As we all know, Low-Rank representation(LRR) ... More
Infrared and visible image fusion using Latent Low-Rank RepresentationApr 24 2018Dec 18 2018Infrared and visible image fusion is an important problem in the field of image fusion which has been applied widely in many fields. To better preserve the useful information from source images, in this paper, we propose a novel image fusion method based ... More
A logarithmically completely monotonic function involving the ratio of gamma functionsMar 08 2013Apr 25 2015In the paper, the authors concisely survey and review some functions involving the gamma function and its various ratios, simply state their logarithmically complete monotonicity and related results, and find necessary and sufficient conditions for a ... More
A unified proof of inequalities and some new inequalities involving Neuman-Sándor meanDec 12 2013In the paper, by finding linear relations of differences between some means, the authors supply a unified proof of some double inequalities for bounding Neuman-S\'andor means in terms of the arithmetic, harmonic, and contra-harmonic means and discover ... More
Liquid Crystalline Polymer Vesicles: Thermotropic Phases in Lyotropic StructuresMar 03 2015Mar 04 2015This paper reviews the research work on the liquid crystalline (LC) polymer vesicles (polymersomes), where the thermotropic nematic and smectic phases are displayed in the lyotropic bilayer polymer membrane. LC polymersomes possess the properties of both ... More
Zeta functions of totally ramified p-covers of the projective lineDec 23 2003Jan 30 2005In this paper we prove that there exists a Zariski dense open subset U defined over the rationals Q in the space of all one-variable rational functions with arbitrary k poles of prescribed orders, such that for every geometric point f in U(Qbar)$, the ... More
Modeling the Formation of Globular Cluster Systems in the Virgo ClusterMay 05 2014Nov 03 2014The mass distribution and chemical composition of globular cluster (GC) systems preserve fossil record of the early stages of galaxy formation. The observed distribution of GC colors within massive early-type galaxies in the ACS Virgo Cluster Survey (ACSVCS) ... More
Formation and Radiation Acceleration of Pair Plasmoids Near Galactic Black HolesSep 05 1995We study quantitatively the formation and radiation acceleration of electron-positron pair plasmoids produced by photon-photon collisions near Galactic black holes (GBHs). The terminal ejecta velocity is found to be completely determined by the total ... More
Multi-focus Image Fusion using dictionary learning and Low-Rank RepresentationApr 23 2018Dec 18 2018Among the representation learning, the low-rank representation (LRR) is one of the hot research topics in many fields, especially in image processing and pattern recognition. Although LRR can capture the global structure, the ability of local structure ... More
Constraints on planet formation via gravitational instability across cosmic timeDec 06 2012Feb 05 2013We estimate the maximum temperature at which planets can form via gravitational instability (GI) in the outskirts of early circumstellar disks. We show that due to the temperature floor set by the cosmic microwave background, there is a maximum distance ... More
Resurrection of (3200) Phaethon in 2016Nov 21 2016We present a study of the active asteroid (3200) Phaethon in the 2016 apparition using the STEREO spacecraft and compare the results with data from the previous two perihelia in 2009 and 2012. Once again, Phaethon brightened by $\sim$2 mag soon after ... More
Integral representations and properties of some functions involving the logarithmic functionMay 17 2013Aug 11 2014By using Cauchy integral formula in the theory of complex functions, the authors establish some integral representations for the principal branches of several complex functions involving the logarithmic function, find some properties, such as being operator ... More
Star cluster formation in cosmological simulations. III. Dynamical and chemical evolutionOct 25 2018In previous papers of this series, we developed a new algorithm for modeling the formation of star clusters in galaxy formation simulations. Here we investigate how dissolution of bound star clusters affects the shape of the cluster mass function and ... More
DenseFuse: A Fusion Approach to Infrared and Visible ImagesApr 23 2018Jan 20 2019In this paper, we present a novel deep learning architecture for infrared and visible images fusion problem. In contrast to conventional convolutional networks, our encoding network is combined by convolutional layers, fusion layer and dense block in ... More
Neural Network Renormalization GroupFeb 08 2018Dec 19 2018We present a variational renormalization group (RG) approach using a deep generative model based on normalizing flows. The model performs hierarchical change-of-variables transformations from the physical space to a latent space with reduced mutual information. ... More
CosmoMHD: A Cosmological Magnetohydrodynamics CodeNov 28 2006In this era of precision cosmology, a detailed physical understanding on the evolution of cosmic baryons is required. Cosmic magnetic fields, though still poorly understood, may represent an important component in the global cosmic energy flow that affects ... More
Natural selection on human Y chromosomesOct 22 2013The paternally inherited Y chromosome has been widely used in population genetic studies to understand relationships among human populations. Our interpretation of Y chromosomal evidence about population history and genetics has rested on the assumption ... More
The conservative cascade of kinetic energy in compressible turbulenceJul 28 2011Aug 22 2011The physical nature of compressible turbulence is of fundamental importance in a variety of astrophysical settings. We present the first direct evidence that mean kinetic energy cascades conservatively beyond a transitional "conversion" scale-range despite ... More
Large-scale Compression Acceleration during Magnetic Reconnection in a Low-$β$ PlasmaJul 10 2018Oct 05 2018In solar flares and other astrophysical systems, a major challenge for solving particle acceleration problem associated with magnetic reconnection is the enormous scale separation between kinetic scales and observed reconnection scale. Because of this, ... More
Nonthermally Dominated Electron Acceleration during Magnetic Reconnection in a Low-beta PlasmaMay 08 2015Sep 25 2015By means of fully kinetic simulations, we investigate electron acceleration during magnetic reconnection in a nonrelativistic proton--electron plasma with conditions similar to solar corona and flares. We demonstrate that reconnection leads to a nonthermally ... More
Hyper-Resistive Model of Ultra High Energy Cosmic Ray Acceleration by Magnetically Collimated Jets Created by Active Galactic NucleiMar 15 2019This is the fourth in a series of companion papers showing that, when an efficient dynamo can be maintained by accretion disks around supermassive black holes in Active Galactic Nuclei (AGNs), it will lead to the formation of a powerful, magnetically-collimated ... More
Bayesian System Identification based on Hierarchical Sparse Bayesian Learning and Gibbs Sampling with Application to Structural Damage AssessmentJan 13 2017The focus in this paper is Bayesian system identification based on noisy incomplete modal data where we can impose spatially-sparse stiffness changes when updating a structural model. To this end, based on a similar hierarchical sparse Bayesian learning ... More
An Adaptive Successive Cancellation List Decoder for Polar Codes with Cyclic Redundancy CheckAug 15 2012In this letter, we propose an adaptive SC (Successive Cancellation)-List decoder for polar codes with CRC. This adaptive SC-List decoder iteratively increases the list size until the decoder outputs contain at least one survival path which can pass CRC. ... More
Capacity of Gaussian Channels with Duty Cycle and Power ConstraintsSep 21 2012In many wireless communication systems, radios are subject to a duty cycle constraint, that is, a radio only actively transmits signals over a fraction of the time. For example, it is desirable to have a small duty cycle in some low power systems; a half-duplex ... More
From one solution of a 3-satisfiability formula to a solution cluster: Frozen variables and entropySep 25 2008Mar 17 2009A solution to a 3-satisfiability (3-SAT) formula can be expanded into a cluster, all other solutions of which are reachable from this one through a sequence of single-spin flips. Some variables in the solution cluster are frozen to the same spin values ... More
General solutions for nonlinear differential equations: a deep reinforcement learning approachMay 13 2018Physicists use differential equations to describe the physical dynamical world, and the solutions of these equations constitute our understanding of the world. During the hundreds of years, scientists developed several ways to solve these equations, i.e., ... More
On the Duality and File Size Hierarchy of Fractional Repetition CodesAug 06 2018Distributed storage systems that deploy erasure codes can provide better features such as lower storage overhead and higher data reliability. In this paper, we focus on fractional repetition (FR) codes, which are a class of storage codes characterized ... More
A Decision-Aided Parallel SC-List Decoder for Polar CodesJun 09 2015In this paper, we propose a decision-aided scheme for parallel SC-List decoding of polar codes. At the parallel SC-List decoder, each survival path is extended based on multiple information bits, therefore the number of split paths becomes very large ... More
Magnetic dipole-dipole interaction induced by the electromagnetic fieldOct 23 2017Jan 18 2018We give a derivation for the indirect interaction between two magnetic dipoles induced by the quantized electromagnetic field. It turns out that the interaction between permanent dipoles directly returns to the classical form; the interaction between ... More
Search for doubly heavy baryon via weak decaysMay 23 2018Using the factorization approach and taking into account the final state interaction, we calculate the two body non-leptonic decays of doubly heavy baryons. After comparing the semi-leptonic decays and all possible hadronic decay channels, we found some ... More
New efficient estimation and variable selection methods for semiparametric varying-coefficient partially linear modelsMar 08 2011The complexity of semiparametric models poses new challenges to statistical inference and model selection that frequently arise from real applications. In this work, we propose new estimation and variable selection procedures for the semiparametric varying-coefficient ... More
Shot Noise for Entangled Electrons with Berry PhaseFeb 16 2005We study shot noise for entangled electrons in a 4-lead beam-splitter with one incoming lead driven by adiabatically rotating magnetic fields. We propose a setup of an adiabatically rotating magnetic field therefor, which is appropriate for an electron ... More
Construction of some families of 2-dimensional crystalline representationsOct 17 2003We construct explicitly some analytic families of etale (phi,Gamma)-modules, which give rise to analytic families of 2-dimensional crystalline representations. As an application of our constructions, we verify some conjectures of Breuil on the reduction ... More
Gamma-rays from Galactic Black Hole Candidates with Stochastic Particle AccelerationFeb 06 1996We consider stochastic particle acceleration in plasmas around stellar mass black holes to explain the emissions above 1 MeV from Galactic black hole candidates. We show that for certain parameter regimes, electrons can overcome Coulomb losses and be ... More
Discrete Mass Ejections from the Be/X-ray Binary A0535+26/HD245770Nov 03 2011We present the long-term optical spectroscopic observations on the Be/X-ray binary A0535+26 from 1992 to 2010. Combining with the public V-band photometric data, we find that each giant X-ray outburst occurred in a fading phase of the optical brightness. ... More
Some aspects of global Lambda polarization in heavy-ion collisionsDec 07 2017Large orbital angular momentum can be generated in non-central heavy-ion collisions, and part of it is expected to be converted into final particle's polarization due to the spin-orbit coupling. Within the framework of A Multi-Phase Transport (AMPT) model, ... More
Monolayer enhanced thermoelectric properties compared with bulk for BiTeBrDec 12 2016Jun 25 2017It is believed that nanostructuring is an effective way to achieve excellent thermoelectric performance. In the work, by combining the first-principles calculations and semiclassical Boltzmann transport theory, we investigate the thermoelectric properties ... More
Automatic trajectory measurement of large numbers of crowded objectsFeb 03 2019Complex motion patterns of natural systems, such as fish schools, bird flocks, and cell groups, have attracted great attention from scientists for years. Trajectory measurement of individuals is vital for quantitative and high-throughput study of their ... More
Variability and Optical Polarization Can Probe the Neutrino and Electromagnetic Emission Mechanisms of TXS~0506+056Jul 29 2018Aug 02 2018The association of the high-energy neutrino event IceCube-170922A with the flaring blazar TXS~0506+056 indicates that hadronic processes may operate in a blazar jet. We perform semi-analytical spectral fitting of the multi-wavelength emission to obtain ... More
Nuclear Star Clusters in Cosmological SimulationsApr 25 2018Jul 23 2018We investigate the possible connection between the most massive globular clusters, such as $\omega$ Cen and M54, and nuclear star clusters of dwarf galaxies that exhibit similar spreads in age and metallicity. We examine galactic nuclei in cosmological ... More
Dissociation of Liquid Water on Defective Rutile TiO2 (110) Surfaces Using Ab-Initio Molecular Dynamics SimulationsMar 28 2018In order to obtain a comprehensive understanding of both thermodynamics and kinetics of water dissociation on TiO2, the reactions between liquid water and perfect and defective rutile TiO2 (110) surfaces were investigated using ab initio molecular dynamics ... More
Parallel Decoders of Polar CodesSep 04 2013In this letter, we propose parallel SC (Successive Cancellation) decoder and parallel SC-List decoder for polar codes. The parallel decoder is composed of M=2^m(m>=1) component decoders working in parallel and each component decoder decodes a Polar code ... More
LRMM: Learning to Recommend with Missing ModalitiesAug 21 2018Aug 30 2018Multimodal learning has shown promising performance in content-based recommendation due to the auxiliary user and item information of multiple modalities such as text and images. However, the problem of incomplete and missing modality is rarely explored ... More
More on total monochromatic connection of graphsApr 08 2016A graph is said to be {\it total-colored} if all the edges and the vertices of the graph are colored. A total-coloring of a graph is a {\it total monochromatically-connecting coloring} ({\it TMC-coloring}, for short) if any two vertices of the graph are ... More
Total proper connection of graphsDec 02 2015A graph is said to be {\it total-colored} if all the edges and the vertices of the graph is colored. A path in a total-colored graph is a {\it total proper path} if $(i)$ any two adjacent edges on the path differ in color, $(ii)$ any two internal adjacent ... More
Ideal Magnetohydrodynamic Simulations of Low Beta Compact Toroid Injection into a Hot Strongly Magnetized PlasmaFeb 14 2009Jun 25 2009We present results from three-dimensional ideal magnetohydrodynamic simulations of low $\beta$ compact toroid (CT) injection into a hot strongly magnetized plasma, with the aim of providing insight into CT fueling of a tokamak with parameters relevant ... More
A Framework for Phasor Measurement Placement in Hybrid State Estimation via Gauss-NewtonSep 19 2013In this paper, we study the placement of Phasor Measurement Units (PMU) for enhancing hybrid state estimation via the traditional Gauss-Newton method, which uses measurements from both PMU devices and Supervisory Control and Data Acquisition (SCADA) systems. ... More
Formation of Globular Cluster Systems: From Dwarf Galaxies to GiantsJan 10 2018Aug 23 2018Globular cluster (GC) systems around galaxies of a vast mass range show remarkably simple scaling relations. The combined mass of all GCs is a constant fraction of the total galaxy mass and the mean metallicity and metallicity dispersion of the GC system ... More
The M_bh-sigma diagram, and the offset nature of barred active galaxiesApr 08 2009May 19 2009From a sample of 50 predominantly inactive galaxies with direct supermassive black hole mass measurements, it has recently been established that barred galaxies tend to reside rightward of the M_bh-sigma relation defined by non-barred galaxies. Either ... More
Shear Viscosity and Viscous Entropy Production in Hot QGP at Finite DensitySep 05 2006In the framework of irreversible thermodynamics, we studied the transport properties of QGP. Shear viscosity and non-equilibrium entropy density related to viscous process at finite density has been investigated in weakly coupled limit by using kinetic ... More
Strong decays of higher excited heavy-light mesons in a chiral quark modelJul 28 2014Oct 27 2014The strong decay properties of the higher excited heavy-light mesons from the first radially excited states up to the first $F$-wave states are studied in a constituent quark model. It is found many missing excitations have good potentials to be found ... More
Low energy reaction $K^-p\rightarrowΛη$ and the negative parity $Λ$ resonancesSep 08 2013The reaction $K^-p\rightarrow\Lambda\eta$ at low energies is studied with a chiral quark model approach. Good descriptions of the existing experimental data are obtained. It is found that $\Lambda(1670)$ dominates the reaction around threshold. Furthermore, ... More
$Ξ$ baryon strong decays in a chiral quark modelFeb 01 2013May 06 2013The strong decays of $\Xi$ baryons up to N=2 shell were studied in a chiral quark model. The strong decay properties of these well-established ground decuplet baryons were reasonably described. We found that (i) $\Xi(1690)$ and $\Xi(1820)$ could be assigned ... More
Acoustics-guided evaluation (AGE): a new measure for estimating performance of speech enhancement algorithms for robust ASRNov 28 2018One challenging problem of robust automatic speech recognition (ASR) is how to measure the goodness of a speech enhancement algorithm (SEA) without calculating the word error rate (WER) due to the high costs of manual transcriptions, language modeling ... More
Quantum games of asymmetric informationAug 06 2003We investigate quantum games in which the information is asymmetrically distributed among the players, and find the possibility of the quantum game outperforming its classical counterpart depends strongly on not only the entanglement, but also the informational ... More
Measuring robustness of community structure in complex networksMar 27 2015The theory of community structure is a powerful tool for real networks, which can simplify their topological and functional analysis considerably. However, since community detection methods have random factors and real social networks obtained from complex ... More
Uniqueness of closed self-similar solutions to $σ_k^α$-curvature flowJan 10 2017Jan 24 2017By adapting the test functions introduced by Choi-Daskaspoulos \cite{c-d} and Brendle-Choi-Daskaspoulos \cite{b-c-d} and exploring properties of the $k$-th elementary symmetric functions $\sigma_{k}$ intensively, we show that for any fixed $k$ with $1\leq ... More
Compressive-Sensing Data Reconstruction for Structural Health Monitoring: A Machine-Learning ApproachJan 07 2019Compressive sensing (CS) has been studied and applied in structural health monitoring for wireless data acquisition and transmission, structural modal identification, and spare damage identification. The key issue in CS is finding the optimal solution ... More
Total monochromatic connection of graphsJan 13 2016A graph is said to be {\it total-colored} if all the edges and the vertices of the graph are colored. A path in a total-colored graph is a {\it total monochromatic path} if all the edges and internal vertices on the path have the same color. A total-coloring ... More
Good upper bounds for the total rainbow connection of graphsJan 08 2015A total-colored graph is a graph $G$ such that both all edges and all vertices of $G$ are colored. A path in a total-colored graph $G$ is a total rainbow path if its edges and internal vertices have distinct colors. A total-colored graph $G$ is total-rainbow ... More
Erdős-Gallai-type results for total monochromatic connection of graphsDec 16 2016A graph is said to be {\it total-colored} if all the edges and the vertices of the graph are colored. A total-coloring of a graph is a {\it total monochromatically-connecting coloring} ({\it TMC-coloring}, for short) if any two vertices of the graph are ... More
An Accretion Disc-Irradiation Hybrid Model for The Optical/UV Variability in Radio-Quiet QuasarsJun 23 2016Jun 24 2016The optical/ultraviolet (UV) variability of quasars has been discovered to be correlated with other quasar properties, such as luminosity, black hole mass and rest-frame wavelength. However,the origin of variability has been a puzzle so far. In this work, ... More
Branching Particle Systems in Spectrally One-sided Levy ProcessesJan 04 2012We investigate the branching structure coded by the excursion above zero of a spectrally positive Levy process. The main idea is to identify the level of the Levy excursion as the time and count the number of jumps upcrossing the level. By regarding the ... More
Continuous-state branching processes in Levy random environmentsJan 19 2016A general continuous-state branching processes in random environment (CBRE-process) is defined as the strong solution of a stochastic integral equation. The environment is determined by a L\'evy process with no jump less than $-1$. We give characterizations ... More
Cartan Subalgebras of Topological Graph Algebras and k-Graph C*-algebrasOct 17 2016In this paper, two sufficient and necessary conditions are given. The first one characterizes when the boundary path groupoid of a topological graph without singular vertices has closed interior of its isotropy group bundle, and the second one characterizes ... More
OR-Benchmark: An Open and Reconfigurable Digital Watermarking Benchmarking FrameworkMay 31 2015Jun 05 2015Benchmarking digital watermarking algorithms is not an easy task because different applications of digital watermarking often have very different sets of requirements and trade-offs between conflicting requirements. While there have been some general-purpose ... More
Impedance spectroscopy and its applicationJun 21 2014Representation of dielectric properties by impedance spectroscopy (IS) is analyzed carefully in this paper. It is found that IS is not a good tool to describe a uniform system because a pseudo relaxation peaks exists at low frequency limit corresponding ... More
$δ$-function spin-1/2 fermions in a one-dimensional potential wellJun 27 1996The quantum-mechanical problem of $N$ fermions with $\delta$-function interaction in a one-dimensional potential well of finite depth is solved. It is shown that there exists exact wave function of Bethe-ansatz form in the case that a single particle ... More
Rotation-induced Mode Coupling in Open Wavelength-scale MicrocavitiesMay 02 2014We study the interplay between rotation and openness for mode coupling in wavelength-scale microcavities. In cavities deformed from a circular disk, the decay rates of a quasi-degenerate pair of resonances may cross or anti-cross with increasing rotation ... More
Shear Viscosity of Hot QED at Finite Density from Kubo FormulaFeb 24 2006Within the framework of finite temperature field theory this paper discusses the shear viscosity of hot QED plasma through Kubo formula at one-loop skeleton diagram level with a finite chemical potential. The effective widths(damping rates) are introduced ... More
Kinetics calculation on the shear viscosity in hot QED at finite densityAug 31 2005The shear viscosity of QED plasma at finite temperature and density is calculated by solving Boltzmann equation with variational approach. The result shows the small chemical potential enhances the viscosity in leading-log order by adding a chemical potential ... More
Scheme for conditional generation of photon-added coherent state and optical entangled $W$ stateOct 17 2006We propose a simple scheme to generate an arbitrary photon-added coherent state of a travelling optical field by using only a set of degenerate parametric amplifiers and single-photon detectors. Particularly, when the single-photon-added coherent state ... More
On "Inconsistency in the Application of the Adiabatic Theorem"Nov 30 2004Mar 31 2005It is shown where the proof of "inconsistency in the application of the adiabatic theorem" goes wrong.
Holographic Van der Waals phase transition of the higher dimensional electrically charged hairy black holeJun 17 2017With motivation by holography, employing black hole entropy, two point connection function and entanglement entropy, we show that, for the higher dimensional Anti-de Sitter charged hairy black hole in the fixed charged ensemble, a Van der Waals-like phase ... More
Three-terminal triple-quantum-dot ring as a charge and spin current rectifierAug 14 2010Electronic transport through a triple-quantum-dot ring with three terminals is theoretically studied. By introducing local Rashba spin-orbit interaction on an individual quantum dot, we find that the spin bias in one terminal drives apparent charge currents ... More
Secure Network Coding Against the Contamination and Eavesdropping AdversariesMay 15 2008In this paper, we propose an algorithm that targets contamination and eavesdropping adversaries. We consider the case when the number of independent packets available to the eavesdropper is less than the multicast capacity of the network. By means of ... More
A Probabilistic Framework for Representing Dialog Systems and Entropy-Based Dialog Management through Dynamic Stochastic State EvolutionApr 27 2015In this paper, we present a probabilistic framework for goal-driven spoken dialog systems. A new dynamic stochastic state (DS-state) is then defined to characterize the goal set of a dialog state at different stages of the dialog process. Furthermore, ... More