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Results for "Zhe Li"

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Polarization of gamma-ray burst afterglows in the synchrotron self-Compton process from a highly relativistic jetDec 16 2016Linear polarization have been observed in both the prompt phase and afterglow of some bright gamma-ray bursts (GRBs). Polarization in the prompt phase spans a wide range, and may be as high as $\gtrsim 50\%$. In the afterglow phase, however, it is usually ... More
Model-independent distance calibration of high-redshift gamma-ray bursts and constrain on the $Λ$CDM modelJul 19 2015Nov 27 2015Gamma-ray bursts (GRBs) are luminous enough to be detectable up to redshift $z\sim 10$. They are often proposed as complementary tools to type-Ia supernovae (SNe Ia) in tracing the Hubble diagram of the Universe. The distance calibrations of GRBs usually ... More
On existence of certain error formulas for a special class of ideal projectorsFeb 12 2011In this paper, we focus on a special class of ideal projectors. With the aid of algebraic geometry, we prove that for this special class of ideal projectors, there exist "good" error formulas as defined by C. de Boor. Furthermore, we completely analyze ... More
Constraints on Primordial non-Gaussianity from Future HI Intensity Mapping ExperimentsJan 01 2017Oct 02 2017The primordial non-Gaussianity induces scale-dependent bias of the \hi with respect to the underlying dark matter, which exhibits features on the very large scales of the 21-cm power spectrum potentially observable with \hi intensity mapping observations. ... More
Effect of GRB spectra on the empirical luminosity correlations and the GRB Hubble diagramApr 08 2016The spectra of gamma-ray bursts (GRBs) in a wide energy range can usually be well described by the Band function, which is a two smoothly jointed power laws cutting at a breaking energy. Below the breaking energy, the Band function reduces to a cut-off ... More
The significance of anisotropic signals hiding in the type Ia supernovaeApr 26 2016We use two different methods, i.e., dipole-fitting (DF) and hemisphere comparison (HC), to search for the anisotropic signals hiding in the Union2.1 data set. We find that the directions of maximum matter density derived using these two methods are about ... More
Generalization of Rindler Potential at Cluster Scales in Randers-Finslerian Spacetime: a Possible Explanation of the Bullet Cluster 1E0657-558?Oct 18 2011Mar 03 2013The data of the Bullet Cluster 1E0657-558 released on November 15, 2006 reveal that the strong and weak gravitational lensing convergence $\kappa$-map has an $8\sigma$ offset from the $\Sigma$-map. The observed $\Sigma$-map is a direct measurement of ... More
A Novel Multivariate Model Based on Dominant Factor for Laser-induced Breakdown Spectroscopy MeasurementsDec 13 2010This paper presents a new approach of applying partial least squares method combined with a physical principle based dominant factor. The characteristic line intensity of the specific element was taken to build up the dominant factor to reflect the major ... More
Galaxies Rotation Curves in the Grumiller's Modified GravitySep 17 2012Feb 27 2013The effective potential in the Grumiller's modified gravity [D. Grumiller, Phys. Rev. Lett {\bf 105}, 211303 (2010)] includes the Newtonian potential and a Rindler term. The fitting to the rotation curve data of eight galaxies suggests a universal Rindler ... More
Groups of Repairmen and Repair-based Load Balancing in Supermarket Models with Repairable ServersMar 26 2017Supermarket models are a class of interesting parallel queueing networks with dynamic randomized load balancing and real-time resource management. When the parallel servers are subject to breakdowns and repairs, analysis of such a supermarket model becomes ... More
A Non-linearized PLS Model Based on Multivariate Dominant Factor for Laser-induced Breakdown Spectroscopy MeasurementsJun 06 2011A multivariate dominant factor based non-linearized PLS model is proposed. The intensities of different lines were taken to construct a multivariate dominant factor model, which describes the dominant concentration information of the measured species. ... More
Multi-Label Learning from Medical Plain Text with Convolutional Residual ModelsJan 15 2018Aug 08 2018Predicting diagnoses from Electronic Health Records (EHRs) is an important medical application of multi-label learning. We propose a convolutional residual model for multi-label classification from doctor notes in EHR data. A given patient may have multiple ... More
Photo-Sketching: Inferring Contour Drawings from ImagesJan 02 2019Edges, boundaries and contours are important subjects of study in both computer graphics and computer vision. On one hand, they are the 2D elements that convey 3D shapes, on the other hand, they are indicative of occlusion events and thus separation of ... More
LCNN: Low-level Feature Embedded CNN for Salient Object DetectionAug 17 2015In this paper, we propose a novel deep neural network framework embedded with low-level features (LCNN) for salient object detection in complex images. We utilise the advantage of convolutional neural networks to automatically learn the high-level features ... More
Impulsively generated wave trains in coronal structures: II. Effects of transverse structuring on sausage waves in pressureless slabsFeb 13 2018Impulsively generated sausage wave trains in coronal structures are important for interpreting a substantial number of observations of quasi-periodic signals with quasi-periods of order seconds. We have previously shown that the Morlet spectra of these ... More
Kink and Sausage Modes in Nonuniform Magnetic Slabs with Continuous Transverse Density DistributionsOct 20 2015We examine the influence of a continuous density structuring transverse to coronal slabs on the dispersive properties of fundamental standing kink and sausage modes supported therein. We derive generic dispersion relations (DRs) governing linear fast ... More
Evaluate the Malignancy of Pulmonary Nodules Using the 3D Deep Leaky Noisy-or NetworkNov 22 2017Automatic diagnosing lung cancer from Computed Tomography (CT) scans involves two steps: detect all suspicious lesions (pulmonary nodules) and evaluate the whole-lung/pulmonary malignancy. Currently, there are many studies about the first step, but few ... More
Gravitational collapse without a remnantApr 24 2008We investigate the gravitational collapse of a spherically symmetric, inhomogeneous star, which is described by a perfect fluid with heat flow and satisfies the equation of state $p=\rho/3$ or $p=C\rho^\ga$ at its center. Different from the ordinary process ... More
Sequential Attention GAN for Interactive Image Editing via DialogueDec 20 2018Apr 03 2019In this paper, we introduce a new task - interactive image editing via conversational language, where users can guide an agent to edit images via multi-turn natural language dialogue. In each dialogue turn, the agent takes a source image and a natural ... More
$Λ$CDM model with a scalar perturbation vs. preferred direction of the universeNov 12 2013We present a scalar perturbation for the $\Lambda$CDM model, which breaks the isotropic symmetry of the universe. Based on the Union2 data, the least-$\chi^2$ fit of the scalar perturbed $\Lambda$CDM model shows that the universe has a preferred direction ... More
Testing the isotropy of the Universe by using the JLA compilation of type-Ia supernovaeApr 14 2015Nov 27 2015We probe the possible anisotropy of the Universe by using the JLA compilation of type-Ia supernovae. We apply the Markov Chain Monte Carlo (MCMC) method to constrain the amplitude and direction of anisotropy in three cosmological models. For the dipole-modulated ... More
Label distribution based facial attractiveness computation by deep residual learningSep 02 2016Sep 07 2016Two challenges lie in the facial attractiveness computation research: the lack of true attractiveness labels (scores), and the lack of an accurate face representation. In order to address the first challenge, this paper recasts facial attractiveness computation ... More
Are long gamma-ray bursts standard candles?Apr 27 2015Aug 20 2015Gamma-ray bursts (GRBs) are widely proposed as an effective probe to trace the Hubble diagram of the Universe in high redshift range. However, the calibration of GRBs is not as easy as that of type-Ia supernovae (SNe Ia). Most calibrating methods at present ... More
A unified description for dipoles of the fine-structure constant and SnIa Hubble diagram in Finslerian universeJan 27 2015May 07 2015We propose a Finsler spacetime scenario of the anisotropic universe. The Finslerian universe requires both the fine-structure constant and accelerating cosmic expansion have dipole structure, and the directions of these two dipoles are the same. Our numerical ... More
Cusp Summations and Cusp Relations of Simple Quad LensesMar 01 2015We review five often used quad lens models, each of which has analytical solutions and can produce four images at most. Each lens model has two parameters, including one that describes the intensity of non-dimensional mass density, and the other one that ... More
Deep Temporal Sigmoid Belief Networks for Sequence ModelingSep 23 2015Deep dynamic generative models are developed to learn sequential dependencies in time-series data. The multi-layered model is designed by constructing a hierarchy of temporal sigmoid belief networks (TSBNs), defined as a sequential stack of sigmoid belief ... More
Gravitational collapse of a spherical star with heat flow as a possible energy mechanism of gamma-ray burstsMar 26 2008We investigate the gravitational collapse of a spherically symmetric, inhomogeneous star, which is described by a perfect fluid with heat flow and satisfies the equation of state $p=\rho/3$ at its center. In the process of the gravitational collapsing, ... More
Enabling Multiple Access for Non-Line-of-Sight Light-to-Camera CommunicationsFeb 27 2018Aug 01 2018Light-to-Camera Communications (LCC) have emerged as a new wireless communication technology with great potential to benefit a broad range of applications. However, the existing LCC systems either require cameras directly facing to the lights or can only ... More
Primary visual cortex as a saliency map: parameter-free prediction of behavior from V1 physiologyNov 02 2014It has been hypothesized that neural activities in the primary visual cortex (V1) represent a saliency map of the visual field to exogenously guide attention. This hypothesis has so far provided only qualitative predictions and their confirmations. We ... More
Finslerian MOND versus the Strong Gravitational Lensing of the Early-type GalaxiesSep 05 2013The gravitational lensing of Bullet Clusters and early-type galaxies pose serious challenges on the validity of MOND. Recently, Finslerian MOND, a generalization of MOND in the framework of Finsler gravity, has been proposed to explain the mass discrepancy ... More
Inferring flare loop parameters with measurements of standing sausage modesDec 11 2015Standing fast sausage modes in flare loops were suggested to account for a considerable number of quasi-periodic pulsations (QPPs) in the light curves of solar flares. This study continues our investigation into the possibility to invert the measured ... More
Longitudinal Single Bunch Instability Study on BEPCIIApr 10 2013In order to study the single bunch longitudinal instability in BEPCII, experiments on the positron ring (BPR) for the bunch lengthening phenomenon were made. By analyzing the experimental data based on Gao's theory, the longitudinal loss factor for the ... More
Effects of spacetime anisotropy on the galaxy rotation curvesMay 10 2013May 26 2013The observations on galaxy rotation curves show significant discrepancies from the Newtonian theory. This issue could be explained by the effect of the anisotropy of the spacetime. Conversely, the spacetime anisotropy could also be constrained by the ... More
Modified Newton's gravity in Finsler Space as a possible alternative to dark matter hypothesisJun 13 2008Sep 27 2008A modified Newton's gravity is obtained as the weak field approximation of the Einstein's equation in Finsler space. It is found that a specified Finsler structure makes the modified Newton's gravity equivalent to the modified Newtonian dynamics (MOND). ... More
Generating Informative and Diverse Conversational Responses via Adversarial Information MaximizationSep 16 2018Nov 06 2018Responses generated by neural conversational models tend to lack informativeness and diversity. We present Adversarial Information Maximization (AIM), an adversarial learning strategy that addresses these two related but distinct problems. To foster response ... More
See the Near Future: A Short-Term Predictive Methodology to Traffic Load in ITSJan 08 2017The Intelligent Transportation System (ITS) targets to a coordinated traffic system by applying the advanced wireless communication technologies for road traffic scheduling. Towards an accurate road traffic control, the short-term traffic forecasting ... More
Variational Autoencoder for Deep Learning of Images, Labels and CaptionsSep 28 2016A novel variational autoencoder is developed to model images, as well as associated labels or captions. The Deep Generative Deconvolutional Network (DGDN) is used as a decoder of the latent image features, and a deep Convolutional Neural Network (CNN) ... More
A possible scenario of the Pioneer anomaly in the framework of Finsler geometrySep 21 2009Oct 11 2010The weak field approximation of geodesics in Randers-Finsler space is investigated. We show that a Finsler structure of Randers space corresponds to the constant and sunward anomalous acceleration demonstrated by the Pioneer 10 and 11 data. The additional ... More
An exact solution of vacuum field equation in Finsler spacetimeJan 23 2014The vacuum field equation in Finsler spacetime is equivalent to vanishing of Ricci scalar. We present an exact solution of the Finslerian vacuum field equation. The solution is similar to the Schwarzschild metric. It reduces to Schwarzschild metric while ... More
Scalable Bayesian Learning of Recurrent Neural Networks for Language ModelingNov 23 2016Apr 24 2017Recurrent neural networks (RNNs) have shown promising performance for language modeling. However, traditional training of RNNs using back-propagation through time often suffers from overfitting. One reason for this is that stochastic optimization (used ... More
Character-level Deep Conflation for Business Data AnalyticsFeb 08 2017Connecting different text attributes associated with the same entity (conflation) is important in business data analytics since it could help merge two different tables in a database to provide a more comprehensive profile of an entity. However, the conflation ... More
Impulsively Generated Wave Trains in Coronal Structures: I. Effects of Transverse Structuring on Sausage Waves in Pressureless TubesDec 30 2016The behavior of the axial group speeds of trapped sausage modes plays an important role in determining impulsively generated wave trains, which have often been invoked to account for quasi-periodic signals with quasi-periods of order seconds in a considerable ... More
Impulsively generated sausage waves in coronal tubes with transversally continuous structuringOct 14 2016The frequency dependence of the longitudinal group speeds of trapped sausage waves plays an important role in determining impulsively generated wave trains, which have often been invoked to account for quasi-periodic signals in coronal loops. We examine ... More
Doppler Fluctuation Spectroscopy of Intracellular Dynamics in Living TissueApr 10 2019Intracellular dynamics in living tissue are dominated by active transport driven by bioenergetic processes far from thermal equilibrium. Intracellular constituents typically execute persistent walks. In the limit of long mean-free paths, the persistent ... More
G band Raman double resonance in twisted bilayer graphene: an evidence of band splitting and foldingAug 13 2009The stacking faults (deviates from Bernal) will break the translational symmetry of multilayer graphenes and modify their electronic and optical behaviors to the extent depending on the interlayer coupling strength. This paper addresses the stacking-induced ... More
Possible quantum gravity effects on the gravitational deflection of lightJul 02 2010We investigate possible quantum gravity (QG) effects on the gravitational deflection of light. Two forms of deformation of the Schwarzschild spacetime are proposed. The first ansatz is a given Finslerian line element, it could be regarded as a weak QG ... More
Towards a CPT Invariant Quantum Field Theory on Elliptic de Sitter SpaceJan 09 2007Apr 07 2008Consequences of Schr\"{o}dinger's antipodal identification on quantum field theory in de Sitter space are investigated. The elliptic $\mathbb{Z}_2$ identification provides observers with complete information. We show that a suitable confinement on dimension ... More
Lorentz Invariance Violation and Symmetry in Randers--Finsler SpacesNov 01 2007Apr 07 2008Lorentz Invariance violation is a common feature of new physics beyond the standard model. We show that the symmetry of Randers spaces deduces a modified dispersion relation with characteristics of Lorentz Invariance violation. The counterparts of the ... More
Standing Sausage Modes In Nonuniform Magnetic Tubes: An Inversion Scheme For Inferring Flare Loop ParametersSep 04 2015Standing sausage modes in flare loops are important for interpreting quasi-periodic pulsations (QPPs) in solar flare lightcurves. We propose an inversion scheme that consistently uses their periods $P$ and damping times $\tau$ to diagnose flare loop parameters. ... More
Entangling power of two-qubit gates on mixed statesNov 22 2013The ability to reach a maximally entangled state from a separable one through the use of a two-qubit unitary operator is analyzed for mixed states. This extension from the known case of pure states shows that there are at least two families of gates which ... More
The spacetime structure of MOND with Tully-Fisher relation and Lorentz invariance violationApr 11 2012It is believed that the modification of Newtonian dynamics (MOND) is possible alternate for dark matter hypothesis. Although Bekenstein's TeVeS supplies a relativistic version of MOND, one may still wish a more concise covariant formulism of MOND. In ... More
Gravitational wave in Lorentz violating gravityNov 06 2011Apr 01 2012By making use of the weak gravitational field approximation, we obtain a linearized solution of the gravitational vacuum field equation in an anisotropic spacetime. The plane-wave solution and dispersion relation of gravitational wave is presented explicitly. ... More
Toward a Gravitation Theory in Berwald--Finsler SpaceNov 13 2007Finsler geometry is a natural and fundamental generalization of Riemann geometry. The Finsler structure depends on both coordinates and velocities. It is defined as a function on tangent bundle of a manifold. We use the Bianchi identities satisfied by ... More
Symmetry and special relativity in Finsler spacetime with constant curvatureOct 11 2010Oct 21 2010Within the framework of projective geometry, we investigate kinematics and symmetry in $(\alpha,\beta)$ spacetime-one special types of Finsler spacetime. The projectively flat $(\alpha,\beta)$ spacetime with constant flag curvature is divided into four ... More
Reply to Sergiu I. Vacaru's "Critical remarks on Finsler modifications of gravity and cosmology by Zhe Chang and Xin Li"Jul 22 2010This is our reply to "Critical remarks on Finslerian modifications of gravity and cosmology by Zhe Chang and Xin Li", Sergiu I. Vacaru, Phys. Lett. B 690 (2010) 224. It is pointed out that the Finslerian modifications of gravity and cosmology (Zhe Chang ... More
Modified Friedmann model in Randers-Finsler space of approximate Berwald type as a possible alternative to dark energy hypothesisJan 08 2009Gravitational field equations in Randers-Finsler space of approximate Berwald type are investigated. A modified Friedmann model is proposed. It is showed that the accelerated expanding universe is guaranteed by a constrained Randers-Finsler structure ... More
An adaptive independence sampler MCMC algorithm for infinite dimensional Bayesian inferencesAug 13 2015Apr 10 2016Many scientific and engineering problems require to perform Bayesian inferences in function spaces, in which the unknowns are of infinite dimension. In such problems, many standard Markov Chain Monte Carlo (MCMC) algorithms become arbitrary slow under ... More
Adversarial Symmetric Variational AutoencoderNov 14 2017Nov 18 2017A new form of variational autoencoder (VAE) is developed, in which the joint distribution of data and codes is considered in two (symmetric) forms: ($i$) from observed data fed through the encoder to yield codes, and ($ii$) from latent codes drawn from ... More
Learning Topics using Semantic LocalityApr 11 2018The topic modeling discovers the latent topic probability of the given text documents. To generate the more meaningful topic that better represents the given document, we proposed a new feature extraction technique which can be used in the data preprocessing ... More
An all fiber source of frequency entangled photon pairsJan 21 2009We present an all fiber source of frequency entangled photon pairs by using four wave mixing in a Sagnac fiber loop. Special care is taken to suppress the impurity of the frequency entanglement by cooling the fiber and by matching the polarization modes ... More
An Adaptive Volumetric Flux Boundary Condition for Lattice Boltzmann MethodsJun 27 2018This paper presents a spatially and temporally adaptive boundary condition to specify the volumetric flux for lattice Boltzmann methods. The approach differs from standard velocity boundary conditions because it allows the velocity to vary over the boundary ... More
Scene Graph Generation with External Knowledge and Image ReconstructionApr 01 2019Scene graph generation has received growing attention with the advancements in image understanding tasks such as object detection, attributes and relationship prediction,~\etc. However, existing datasets are biased in terms of object and relationship ... More
High-Resolution Image Inpainting using Multi-Scale Neural Patch SynthesisNov 30 2016Apr 13 2017Recent advances in deep learning have shown exciting promise in filling large holes in natural images with semantically plausible and context aware details, impacting fundamental image manipulation tasks such as object removal. While these learning-based ... More
Fast sausage modes in magnetic tubes with continuous transverse profiles: effects of a finite plasma betaOct 11 2016While standing fast sausage modes in flare loops are often invoked to interpret quasi-periodic pulsations (QPPs) in solar flares, it is unclear as to how they are influenced by the combined effects of a continuous transverse structuring and a finite internal ... More
Universal Optimal Gates Regarding Quantum Entanglement and Discord GeneratingJun 06 2013Jul 15 2013Fernando Galve \emph{et al.} $[Phys. Rev. Lett. \textbf{110}, 010501 (2013)]$ introduced discording power for a two-qubit unitary gate to evaluate its capability to produce quantum discord, and found that a $\pi/8$ gate has maximal discording power. This ... More
Magnification relations of quad lenses and applications on Einstein crossesApr 28 2016Jul 21 2016In this work, we mainly study the magnification relations of quad lens models for cusp, fold and cross configurations. By dividing and ray-tracing in different image regions, we numerically derive the positions and magnifications of the four images for ... More
Ultra-high energy cosmic rays threshold in Randers-Finsler spaceSep 27 2008Kinematics in Finsler space is used to study the propagation of ultra high energy cosmic rays particles through the cosmic microwave background radiation. We find that the GZK threshold is lifted dramatically in Randers-Finsler space. A tiny deformation ... More
Gravitational deflection of light in Rindler-type potential as a possible resolution to the observations of Bullet Cluster 1E0657-558Aug 17 2011The surface density $\Sigma$-map and the convergence $\kappa$-map of Bullet Cluster 1E0657-558 show that the center of baryonic matters separates from the center of gravitational force, and the distribution of gravitational force do not possess spherical ... More
Debye entropic force and modified Newtonian dynamicsMay 07 2010May 20 2010Verlinde has suggested that the gravity has an entropic origin, and a gravitational system could be regarded as a thermodynamical system. It is well-known that the equipartition law of energy is invalid at very low temperature. Therefore, entropic force ... More
Semantic Compositional Networks for Visual CaptioningNov 23 2016Mar 28 2017A Semantic Compositional Network (SCN) is developed for image captioning, in which semantic concepts (i.e., tags) are detected from the image, and the probability of each tag is used to compose the parameters in a long short-term memory (LSTM) network. ... More
Estimation and Inference for High Dimensional Generalized Linear Models: A Splitting and Smoothing ApproachMar 11 2019For a better understanding of the molecular causes of lung cancer, the Boston Lung Cancer Study (BLCS) has generated comprehensive molecular data from both lung cancer cases and controls. It has been challenging to model such high dimensional data with ... More
Learning Generic Sentence Representations Using Convolutional Neural NetworksNov 23 2016Jul 26 2017We propose a new encoder-decoder approach to learn distributed sentence representations that are applicable to multiple purposes. The model is learned by using a convolutional neural network as an encoder to map an input sentence into a continuous vector, ... More
The effect of Al doping on the structure and magnetism in cobaltite CaBaCo4O7Apr 04 2013We report the effects of Al-doping on the structure and magnetic properties in CaBa(Co$_{1-x}$Al$_{x}$)$_4$O$_7$ (0$\leq$x$\leq$0.25). The system exhibits a structural transition from an orthorhombic symmetry to a hexagonal symmetry when the Al content ... More
Rank $n$ swapping algebra for GrassmannianApr 15 2019The rank $n$ swapping algebra is the Poisson algebra defined on the ordered pairs of points on a circle using the linking numbers, where a subspace of $(\mathbb{K}^n \times \mathbb{K}^{n*})^r/\operatorname{GL}(n,\mathbb{K})$ is its geometric mode. In ... More
A Driven Tagged Particle in Symmetric Simple Exclusion Processes with Removal RulesSep 19 2017Nov 06 2017We consider a driven tagged particle in a symmetric simple exclusion process on Z with removal rules. In this process, untagged particles are removed once they jump to the left of a tagged particle. We investigate the behavior of the displacement of the ... More
A Driven Tagged Particle in Asymmetric Simple Exclusion ProcessesSep 19 2017Nov 02 2017We consider the asymmetric simple exclusion process with a driven tagged particle on Z which has a negative drift, and show that the tagged particle can have a positive speed when it jumps more slowly than the other particles. Coupling arguments are used. ... More
NaCl crystal from salt solution with far below saturated concentration under ambient conditionAug 03 2017Under ambient conditions, we directly observed NaCl crystals experimentally in the rGO membranes soaked in the salt solution with concentration below and far below the saturated concentration. Moreover, in most probability, the NaCl crystals show stoichiometries ... More
Beyond Google Play: A Large-Scale Comparative Study of Chinese Android App MarketsSep 26 2018China is one of the largest Android markets in the world. As Chinese users cannot access Google Play to buy and install Android apps, a number of independent app stores have emerged and compete in the Chinese app market. Some of the Chinese app stores ... More
Single Crystal Growth, Transport, and Electronic Band Structure of YCoGa$_5$Jul 13 2013Single crystal of YCoGa5 has been grown via Ga self-flux. In this paper, we report the single crystal growth, crystallographic parameters, resistivity, heat capacity, and band structure results of YCoGa5. YCoGa5 accommodates the HoCoGa5 type structure ... More
Swapping algebra, Virasoro algebra and discrete integrable systemDec 14 2014Sep 22 2016We induce a Poisson algebra $\{\cdot,\cdot\}_{\mathcal{C}_{n,N}}$ on the configuration space $\mathcal{C}_{n,N}$ of $N$ twisted polygons in $\mathbb{RP}^{n-1}$ from the swapping algebra \cite{L12}, which is found coincide with Faddeev-Takhtajan-Volkov ... More
Green functions and higher Deligne--Lusztig charactersJul 09 2018Aug 05 2018We give a generalisation of the character formula of Deligne--Lusztig representations from the finite field case to the truncated formal power series case. Motivated by this generalisation, we give a definition of Green functions for these local rings, ... More
Tactical Rewind: Self-Correction via Backtracking in Vision-and-Language NavigationMar 06 2019Apr 02 2019We present the Frontier Aware Search with backTracking (FAST) Navigator, a general framework for action decoding, that achieves state-of-the-art results on the Room-to-Room (R2R) Vision-and-Language navigation challenge of Anderson et. al. (2018). Given ... More
Tunable THz Surface Plasmon Polariton based on Topological Insulator-Layered Superconductor Hybrid StructureMar 05 2014We theoretically investigate the surface plasmon polariton (SPP) at the interface between 3D strong topological insulator (TI) and layered superconductor-magnetic insulator structure. The tunability of SPP through electronic doping can be enhanced when ... More
Space-time crystals of trapped ionsJun 21 2012Jun 19 2013Spontaneous symmetry breaking can lead to the formation of time crystals, as well as spatial crystals. Here we propose a space-time crystal of trapped ions and a method to realize it experimentally by confining ions in a ring-shaped trapping potential ... More
FoveaNet: Perspective-aware Urban Scene ParsingAug 08 2017Parsing urban scene images benefits many applications, especially self-driving. Most of the current solutions employ generic image parsing models that treat all scales and locations in the images equally and do not consider the geometry property of car-captured ... More
Electron-Doping Induced Semiconductor to Metal Transitions in ZrSe2 Layers via Copper Atomic IntercalationMar 22 2018Atomic intercalation in two dimensional (2D) layered materials can engineer the electronic structure at the atomic scale, bringing out tunable physical and chemical properties which are quite distinct in comparison with pristine one. Among them, electron-doped ... More
Reply to Comment on "Space-Time Crystals of Trapped Ions"Dec 31 2012Jun 19 2013This is a reply to the comment from Patrick Bruno (arXiv:1211.4792) on our paper (Phys. Rev. Lett. 109, 163001 (2012)).
Deterministic generation of single soliton Kerr frequency comb in microresonators by a single shot pulsed triggerJul 04 2017Feb 06 2018Kerr soliton frequency comb generation in monolithic microresonators recently attracted great interests as it enables chip-scale few-cycle pulse generation at microwave rates with smooth octave-spanning spectra for self-referencing. Such versatile platform ... More
Kosterlitz-Thouless phase transition and reentrance in an anisotropic 3-state Potts model on the generalized Kagome latticeJan 15 2013The unusual reentrant phenomenon is observed in the anisotropic 3-state Potts model on a gen- eralized Kagome lattice. By employing the linearized tensor renormalization group method, we find that the reentrance can appear in the region not only under ... More
Spatial Phase and Amplitude Structuring of Beams Using a Combination of Multiple Orthogonal Spatial Functions with Complex CoefficientsMay 28 2016Analogous to time signals that can be composed of multiple frequency functions, we use uniquely structured orthogonal spatial modes to create different beam shapes. We tailor the spatial structure by judiciously choosing a weighted combination of multiple ... More
A matter dominated navigation Universe in accordance with the Type Ia supernova dataDec 31 2009Apr 07 2010We investigate a matter dominated navigation cosmological model. The influence of a possible drift (wind) in the navigation cosmological model makes the spacetime geometry change from Riemannian to Finslerian. The evolution of the Finslerian Universe ... More
Constraints from Type IA Supernovae on λ-CDM Model in Randers-Finsler SpaceSep 08 2010Mar 03 2013Gravitational field equations in Randers-Finsler space of approximate Berwald type are investigated. A modified Friedmann equation and a new luminosity distance-redshift relation is proposed. A best-fit to the Type Ia supernovae (SNe) observations yields ... More
Unification of Dark Matter and Dark Energy in a Modified Entropic Force ModelSep 08 2010Jun 27 2011In Verlinde's entropic force scenario of gravity, Newton's laws and Einstein equations can be obtained from the first pinciples and general assumptions. However, the equipartition law of energy is invalid at very low temperatures. We show clearly that ... More
McShane identities for Higher Teichmüller theory and the Goncharov-Shen potentialJan 07 2019Apr 15 2019In [GS15], Goncharov and Shen introduce a family of mapping class group invariant regular functions on their $\mathcal{A}$-moduli space to explicitly formulate a particular homological mirror symmetry conjecture. Using these regular functions, we obtain ... More
Reconstruction of Missing Big Sensor DataMay 03 2017With ubiquitous sensors continuously monitoring and collecting large amounts of information, there is no doubt that this is an era of big data. One of the important sources for scientific big data is the datasets collected by Internet of things (IoT). ... More
Theoretical investigation on isomer formation probability and free energy of small C clustersJan 12 2014Molecular dynamics simulations and free energy calculations were employed to investigate the evolution, formation probability, detailed balance and isomerization rate of small C cluster isomers at 2500 K. For C10, the isomer formation probability predicted ... More
Residuated Basic Logic II. Interpolation, Decidability and EmbeddingFeb 24 2014We prove that the sequent calculus $\mathsf{L_{RBL}}$ for residuated basic logic $\mathsf{RBL}$ has strong finite model property, and that intuitionistic logic can be embedded into basic propositional logic $\mathsf{BPL}$. Thus $\mathsf{RBL}$ is decidable. ... More
Accelerating and Evaluation of Syntactic Parsing in Natural Language Question Answering SystemsMar 01 2009Mar 10 2009With the development of Natural Language Processing (NLP), more and more systems want to adopt NLP in User Interface Module to process user input, in order to communicate with user in a natural way. However, this raises a speed problem. That is, if NLP ... More
Pathwise stochastic integrals and Itô formula for multidimensional Gaussian processesJan 19 2014Nov 23 2014In this article we study existence of pathwise stochastic integrals with respect to a general class of $n$-dimensional Gaussian processes and a wide class of adapted integrands. More precisely, we study integrands which are functions that are of locally ... More
Two coloring problems on matrix graphsDec 22 2015In this paper, we propose a new family of graphs, matrix graphs, whose vertex set $\mathbb{F}^{N\times n}_q$ is the set of all $N\times n$ matrices over a finite field $\mathbb{F}_q$ for any positive integers $N$ and $n$. And any two matrices share an ... More