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On some experimental features of car-following behavior and how to model themMay 10 2015We have carried out car-following experiments with a 25-car-platoon on an open road section to study the relation between a car's speed and its spacing under various traffic conditions, in the hope to resolve a controversy surrounding this fundamental ... More

Original graphs of link graphsMar 25 2015Aug 31 2015Let $\ell \geqslant 0$ be an integer, and $G$ be a graph without loops. An $\ell$-link of $G$ is a walk of length $\ell$ in which consecutive edges are different. We identify an $\ell$-link with its reverse sequence. The $\ell$-link graph $\mathbb{L}_\ell(G)$ ... More

Traffic experiment reveals the nature of car-followingJan 10 2014As a typical self-driven many-particle system far from equilibrium, traffic flow exhibits diverse fascinating non-equilibrium phenomena, most of which are closely related to traffic flow stability and specifically the growth/dissipation pattern of disturbances. ... More

Topological insulator and particle pumping in a one-dimensional shaken optical latticeFeb 22 2019We propose a simple method to simulate and detect topological insulators with cold atoms trapped in a one-dimensional bichromatic optical lattice subjected to a time-periodic modulation. The tight-binding form of this shaken system is equivalent to the ... More

Can We Achieve Fresh Information with Selfish Users in Mobile Crowd-Learning?Feb 16 2019The proliferation of smart mobile devices has spurred an explosive growth of mobile crowd-learning services, where service providers rely on the user community to voluntarily collect, report, and share real-time information for a collection of scattered ... More

In-plane Chiral Tunneling and Out-of-plane Valley-polarized Quantum Tunneling in Twisted Graphene TrilayerMay 11 2014Jul 30 2014Here we show that twisted graphene trilayer made by misoriented stacking a graphene monolayer on top of a Bernal graphene bilayer can exhibit rich and tailored electronic properties. For the case that the graphene monolayer and bilayer are strongly coupled, ... More

Maximum Likelihood Estimation based on Random Subspace EDA: Application to Extrasolar Planet DetectionApr 18 2017Jul 21 2017This paper addresses maximum likelihood (ML) estimation based model fitting in the context of extrasolar planet detection. This problem is featured by the following properties: 1) the candidate models under consideration are highly nonlinear; 2) the likelihood ... More

Two-photon blockade in a cascaded cavity-quantum-electrodynamics systemNov 11 2018We investigate theoretically the model of a cavity-quantum-electrodynamics (QED) system that consists of two two-level atoms coupled to a single-mode cavity in the weak coupling regime, where the system is driven by quantum light. The dynamics behavior ... More

Neutrino Quasinormal Modes of a Kerr-Newman-de Sitter Black HoleFeb 21 2005Mar 26 2005Using the P\"{o}shl-Teller approximation, we evaluate the neutrino quasinormal modes (QNMs) of a Kerr-Newman-de Sitter black hole. The result shows that for a Kerr-Newman-de Sitter black hole, massless neutrino perturbation of large $\Lambda$, positive ... More

A Well-Founded Semantics for FOL-ProgramsMay 14 2014An FOL-program consists of a background theory in a decidable fragment of first-order logic and a collection of rules possibly containing first-order formulas. The formalism stems from recent approaches to tight integrations of ASP with description logics. ... More

Spurious symmetry-broken phase in a bidirectional two-lane ASEP with narrow entrances: A perspective from mean field analysis and current minimization principleMay 06 2016As one of the paradigmatic models of non-equilibrium systems, the asymmetric simple exclusion process (ASEP) has been widely used to study many physical, chemical, and biological systems. The ASEP shows a range of nontrivial macroscopic phenomena, among ... More

Exclusive $eta_b$ decay to double $J/ψ$ at next-to-leading order in $alpha_s$Aug 07 2008Oct 09 2008Within the nonrelativistic QCD (NRQCD) factorization framework, we calculate the exclusive decay process \eta_b \to J/\psi J/\psi to next-to-leading order in the strong coupling constant, while at leading order in charm quark relative velocity. It is ... More

Analytical investigation on the minimum traffic delay at a two-phase intersection considering the dynamical evolution process of queuesJan 23 2016This paper has studied the minimum traffic delay at a two-phase intersection, taking into account the dynamical evolution process of queues. The feature of delay function has been studied, which indicates that the minimum traffic delay must be achieved ... More

A class of symmetric graphs with 2-arc-transitive quotientsMay 31 2009Let $\Gamma$ be a finite X-symmetric graph with a nontrivial X-invariant partition $\mathcal {B}$ on $V(\Gamma)$ such that $\Gamma_{\mathcal {B}}$ is a connected (X,2)-arc-transitive graph and $\Gamma$ is not a multicover of $\Gamma_{\mathcal {B}}$. This ... More

DF-Net: Unsupervised Joint Learning of Depth and Flow using Cross-Task ConsistencySep 05 2018We present an unsupervised learning framework for simultaneously training single-view depth prediction and optical flow estimation models using unlabeled video sequences. Existing unsupervised methods often exploit brightness constancy and spatial smoothness ... More

iTrace: An Implicit Trust Inference Method for Trust-aware Collaborative FilteringAug 11 2017Aug 15 2017The growth of Internet commerce has stimulated the use of collaborative filtering (CF) algorithms as recommender systems. A collaborative filtering (CF) algorithm recommends items of interest to the target user by leveraging the votes given by other similar ... More

A potential theory for the k-curvature equationMar 05 2017In this paper, we introduce a potential theory for the k-curvature equation, which can also be seen as a PDE approach to curvature measures. We assign a measure to a bounded, upper semicontinuous function which is strictly subharmonic with respect to ... More

Beam transport experiment with a new kicker control system on the HIRFL-CSRJul 09 2015The kicker control system was used for beam extraction and injection between two cooling storage rings (CSRs) at the Heavy Ion Research Facility in Lanzhou (HIRFL). To meet the requirements of special physics experiments, the kicker controller was upgraded. ... More

Minimum Latency Broadcast Scheduling in Single-Radio Multi-Channel Wireless Ad-Hoc NetworksApr 19 2013We study the minimum latency broadcast scheduling (MLBS) problem in Single-Radio Multi-Channel (SR-MC) wireless ad-hoc networks (WANETs), which are modeled by Unit Disk Graphs. Nodes with this capability have their fixed reception channels, but can switch ... More

Characterizing Real-space Topology in Rice-Mele Model by ThermodynamicsJan 24 2018The thermodynamic quantities which are related to energy-level statistics are used to characterize the real-space topology of the Rice-Mele model. Through studying the energy spectrum of the model under different boundary conditions, we found that the ... More

Importance of non-flow in mixed-harmonic multi-particle correlations in small collision systemsOct 20 2017Dec 31 2017Recently CMS Collaboration measured mixed-harmonic four-particle azimuthal correlations, known as symmetric cumulants SC(n,m), in pp and pPb collisions, and interpreted the non-zero SC(n,m) as evidence for long-range collectivity in these small collision ... More

Characterization of Glue Variables in CDCL SAT SolvingApr 25 2019A state-of-the-art criterion to evaluate the importance of a given learned clause is called Literal Block Distance (LBD) score. It measures the number of distinct decision levels in a given learned clause. The lower the LBD score of a learned clause, ... More

Enhancing Global SLS-Resolution with Loop Cutting and Tabling MechanismsJul 14 2005Global SLS-resolution is a well-known procedural semantics for top-down computation of queries under the well-founded model. It inherits from SLDNF-resolution the {\em linearity} property of derivations, which makes it easy and efficient to implement ... More

Verifying Termination of General Logic Programs with Concrete QueriesJun 21 2000We introduce a method of verifying termination of logic programs with respect to concrete queries (instead of abstract query patterns). A necessary and sufficient condition is established and an algorithm for automatic verification is developed. In contrast ... More

SLT-Resolution for the Well-Founded SemanticsFeb 27 2000Mar 02 2001Global SLS-resolution and SLG-resolution are two representative mechanisms for top-down evaluation of the well-founded semantics of general logic programs. Global SLS-resolution is linear for query evaluation but suffers from infinite loops and redundant ... More

Detection of light-matter interaction in the weak coupling regime by quantum lightApr 13 2018Mollow spectroscopy is a photon statistics spectroscopy, obtained by scanning the quantum light scattered from a source system. Here, we apply this technique to detect the weak light-matter interaction between the cavity and atom (or a mechanical oscillator) ... More

Single-photon-induced two qubits excitation without breaking parity symmetryJan 15 2018We investigate theoretically the model of two \qubits" system (one qubit having an auxiliary level) interacting with a single-mode resonator in the ultrastrong coupling regime. We show that a single photon could simultaneously excite two qubits without ... More

Mass sensing by quantum criticalityApr 03 2019Mass sensing connects the mass variation to a frequency shift of a mechanical oscillator, whose limitation is determined by its mechanical frequency resolution. Here we propose a method to enlarge a minute mechanical frequency shift, which is smaller ... More

Intrinsic-to-extrinsic transition in fracture toughness through structural design: A lesson from natureMay 12 2009Mar 17 2015Catastrophic failure of materials and structures due to unstable crack growth could be prevented if facture toughness could be enhanced at will through structural design, but how can this be possible if fracture toughness is a material constant related ... More

A Low-Cost Tele-Presence Wheelchair SystemJan 22 2016Aug 23 2016This paper presents the architecture and implementation of a tele-presence wheelchair system based on tele-presence robot, intelligent wheelchair, and touch screen technologies. The tele-presence wheelchair system consists of a commercial electric wheelchair, ... More

Heterostrain engineering on twisted graphene bilayer around the first magic angleMay 10 2018Oct 07 2018Very recently, twisted graphene bilayer (TGB) around the first magic angle 1.1{\deg} has attracted much attention for the realization of exotic quantum states, such as correlated insulator behavior and unconventional superconductivity. Here we elaborately ... More

Direct imaging of topological edge states at a bilayer graphene domain wallNov 20 2015The AB-BA domain wall in gapped graphene bilayers is a rare naked structure hosting topological electronic states. Here we show, for the first time, direct imaging of its topological edge states by using scanning tunneling microscope. The simultaneously ... More

Robust Visual Tracking via Hierarchical Convolutional FeaturesJul 12 2017Aug 11 2018In this paper, we propose to exploit the rich hierarchical features of deep convolutional neural networks to improve the accuracy and robustness of visual tracking. Deep neural networks trained on object recognition datasets consist of multiple convolutional ... More

Holographic Description of 2D Conformal Block in Semi-classical LimitSep 03 2016Oct 13 2016In this paper, we study the holographic descriptions of the conformal block of heavy operators in two-dimensional large c conformal field theory. We consider the case that the operators are pairwise inserted such that the distance between the operators ... More

Entanglement distribution maximization over one-side Gaussian noisy channelJan 04 2010Jun 11 2010The optimization of entanglement evolution for two-mode Gaussian pure states under one-side Gaussian map is studied. Even there isn't complete information about the one-side Gaussian noisy channel, one can still maximize the entanglement distribution ... More

Optimal Surface Marker Locations for Tumor Motion Estimation in Lung Cancer RadiotherapyApr 19 2012Using fiducial markers on patient's body surface to predict the tumor location is a widely used approach in lung cancer radiotherapy. The purpose of this work is to propose an algorithm that automatically identifies a sparse set of locations on the patient's ... More

GPU-based Iterative Cone Beam CT Reconstruction Using Tight Frame RegularizationAug 12 2010May 05 2011X-ray imaging dose from serial cone-beam CT (CBCT) scans raises a clinical concern in most image guided radiation therapy procedures. It is the goal of this paper to develop a fast GPU-based algorithm to reconstruct high quality CBCT images from undersampled ... More

Speed dependent stochasticity capacitates Newell model for synchronized flow and oscillation growth patternJul 03 2016Nov 01 2018This paper has incorporated the stochasticity into the Newell car following model. Three stochastic driving factors have been considered: (i) Driver's acceleration is bounded. (ii) Driver's deceleration includes stochastic component, which is depicted ... More

Microscopic driving theory with oscillatory congested states: model and empirical verificationDec 01 2014The essential distinction between the Fundamental Diagram Approach (FDA) and Kerner's Three- Phase Theory (KTPT) is the existence of a unique gap-speed (or flow-density) relationship in the former class. In order to verify this relationship, empirical ... More

A preliminary analysis of the energy transfer between the dark sectors of the UniverseJul 20 2008We study the mutual interaction between the dark sectors (dark matter and dark energy) of the Universe by resorting to the extended thermodynamics of irreversible processes and constrain the former with supernova type Ia data. As a byproduct, the present ... More

Developing a cardiovascular disease risk factor annotated corpus of Chinese electronic medical recordsNov 28 2016Mar 03 2017Cardiovascular disease (CVD) has become the leading cause of death in China, and most of the cases can be prevented by controlling risk factors. The goal of this study was to build a corpus of CVD risk factor annotations based on Chinese electronic medical ... More

Empirical analysis and simulation of the evolution concavity of traffic oscillationsMay 22 2015Aug 10 2016This paper has investigated the growth pattern of traffic oscillations in the NGSIM vehicle trajectories data, via measuring the standard deviation of vehicle velocity involved in oscillations. We found that the standard deviation of the velocity increases ... More

Microscopic driving theory with non-hypothetical congested steady state: Model and Empirical verificationMay 03 2013May 16 2014The essential distinction between the fundamental diagram approach and three-phase theory is the existence of the unique space-gap-speed relationship. In order to verify this relationship, empirical data are analyzed with the following findings: (1) linear ... More

Unified Approach to Universal Cloning and Phase-Covariant CloningApr 26 2008Jun 21 2008We analyze the problem of approximate quantum cloning when the quantum state is between two latitudes on the Bloch's sphere. We present an analytical formula for the optimized 1-to-2 cloning. The formula unifies the universal quantum cloning (UQCM) and ... More

Short interval expansion of Rényi entropy on torusJun 17 2016Aug 30 2016We investigate the short interval expansion of the R\'enyi entropy for two-dimensional conformal field theory (CFT) on a torus. We require the length of the interval $\ell$ to be small with respect to the spatial and temporal sizes of the torus. The operator ... More

Modeling delayed processes in biological systemsMay 24 2016Delayed processes are ubiquitous in biological systems and are often characterized by delay differential equations (DDEs) and their extension to include stochastic effects. DDEs do not explicitly incorporate intermediate states associated with a delayed ... More

High-resolution Tunneling Spectroscopy of ABA-stacked Trilayer GrapheneApr 23 2018ABA-stacked trilayer graphene (TLG), the simplest system consisting of both massless and massive Dirac fermions, is expected to exhibit many interesting broken-symmetry quantum Hall states and interaction-induced phenomena. However, difficulties in microscopically ... More

The generalized second law of thermodynamics in the accelerating universeMay 09 2007Jun 26 2007We show that in the accelerating universe the generalized second law of thermodynamics holds only in the case where the enveloping surface is the apparent horizon, but not in the case of the event horizon. The present analysis relies on the most recent ... More

Landau Quantization in Graphene Monolayer, Bernal Bilayer, and Bernal Trilayer on Graphite SurfaceJan 07 2015Electronic properties of surface areas decoupled from graphite are studied using scanning tunnelling microscopy and spectroscopy. We show that it is possible to identify decoupled graphene monolayer, Bernal bilayer, and Bernal trilayer on graphite surface ... More

Impact of holding umbrella on uni- and bi-directional pedestrian flow: Experiments and modelingDec 21 2015In this paper, the impact of holding umbrella on the uni- and bi-directional flow has been investigated via experiment and modeling. In the experiments, pedestrians are required to walk clockwise/anti-clockwise in a ring-shaped corridor under normal situation ... More

Spatially resolving unconventional interface Landau quantization in a graphene monolayer-bilayer planar junctionFeb 03 2015Graphene hybrid planar structures consisting of two regions with different quantum Hall (QH) states exhibit unusual transport properties1-5, originating from chiral edge states equilibration at the interface of the two different regions6. Here we present ... More

Direct Probing Stacking Order and Electronic Spectrum of Rhombohedral Trilayer Graphene with Scanning Tunneling MicroscopySep 21 2014Nov 21 2014Recently, the rhombohedral trilayer graphene (r-TLG) has attracted much attention because of its low-energy flat bands, which are predicted to result in many strongly correlated phenomena. Here, we demonstrate that it is possible to probe the stacking ... More

Variational generalized rotating-wave approximation in the two-qubit quantum Rabi modelApr 21 2019We present an analytical method for the two-qubit quantum Rabi model. While still operating in the frame of the generalized rotating-wave approximation (GRWA), our method further embraces the idea of introducing variational parameters. The optimal value ... More

Collective Radiance Effects in the Ultrastrong Coupling RegimeJan 14 2019We investigate the collective radiance characteristics of qubits in the ultrastrong coupling regime, where the radiance witness is defined based on the resonator-qubit dressed basis. The ultrastrong hyperradiance effect is demonstrated when the dressed ... More

Controllable nonlinearity in a dual-coupling optomechanical system under a weak-coupling regimeMar 24 2018Strong quantum nonlinearity gives rise to many interesting quantum effects and has wide applications in quantum physics. Herewe investigate the quantum nonlinear effect of an optomechanical system (OMS) consisting of both linear and quadratic coupling. ... More

Prediction of Daytime Hypoglycemic Events Using Continuous Glucose Monitoring Data and Classification TechniqueApr 27 2017Daytime hypoglycemia should be accurately predicted to achieve normoglycemia and to avoid disastrous situations. Hypoglycemia, an abnormally low blood glucose level, is divided into daytime hypoglycemia and nocturnal hypoglycemia. Many studies of hypoglycemia ... More

Switchable dynamics in the deep-strong-coupling regimeNov 11 2018We investigate theoretically the dynamics of the system that consists of a cascade three-level emitter interacting with a single-mode resonator in the deep-strong-coupling regime. We show that the dynamical evolution of the system can only occur in a ... More

Magnetic-field-assisted electron confinement and valley splitting in strained grapheneMar 29 2015Spatially varying strained graphene can acquire interesting electronic properties because of the strain-induced valley-dependent gauge (pseudomagnetic) fields1,2. Here we report the realization of strained graphene regions located close to the step edges ... More

Redundancy-Free Computation Graphs for Graph Neural NetworksJun 09 2019Graph Neural Networks (GNNs) are based on repeated aggregations of information across nodes' neighbors in a graph. However, because common neighbors are shared between different nodes, this leads to repeated and inefficient computations. We propose Hierarchically ... More

Linear Tabulated Resolution Based on Prolog Control StrategyMar 09 2000Infinite loops and redundant computations are long recognized open problems in Prolog. Two ways have been explored to resolve these problems: loop checking and tabling. Loop checking can cut infinite loops, but it cannot be both sound and complete even ... More

Social capital at venture capital firms and their financial performance: Evidence from ChinaOct 06 2018This paper studies the extent to which social capital drives performance in the Chinese venture capital market and explores the trend toward VC syndication in China. First, we propose a hybrid model based on syndicated social networks and the latent-variable ... More

Enhancing intrinsic detection efficiency of superconducting nanowire single-photon detectors via helium ion irradiationJul 10 2018Realizing an NbN superconducting nanowire single-photon detector (SNSPD) with a 100% intrinsic detection efficiency (IDE) at the near-infrared wavelengths is still challenging. Herein, we developed a post-processing method to increase the IDE of NbN SNSPDs ... More

New Color-Octet Vector Boson RevisitApr 11 2011Motivated by CDF recent measurements on di-jet invariant mass spectrum where di-jet is associated production with charged leptons ($e/\mu$) and missing energy, we re-examine the previous proposed massive color-octet axial-vector-like boson $Z_c$. Our ... More

Embedding Description Logic Programs into Default LogicNov 07 2011Description logic programs (dl-programs) under the answer set semantics formulated by Eiter {\em et al.} have been considered as a prominent formalism for integrating rules and ontology knowledge bases. A question of interest has been whether dl-programs ... More

Spin-dependent transport in van der Waals magnetic tunnel junctions with Fe3GeTe2 electrodesApr 12 2019Van der Waals (vdW) heterostructures, stacking different two-dimensional materials, have opened up unprecedented opportunities to explore new physics and device concepts. Especially interesting are recently discovered two-dimensional magnetic vdW materials, ... More

Electronic Structures and Their Landau Quantizations in Twisted Graphene Bilayer and TrilayerOct 07 2014Jan 08 2015Electronic structures and their Landau quantizations in twisted graphene bilayer and trilayer are investigated using scanning tunnelling microscopy and spectroscopy. In the twisted trilayer, the top graphene layer and second layer are AB (Bernal) stacking ... More

Non-Markovian dynamics of open quantum systems without rotating wave approximationJul 21 2014Jul 22 2014We study the non-Markovian dynamics of a damped oscillator coupled with a reservoir. We present exact formulas for the oscillator's evolution directly from the BCH formula by series expansion with neither Markovian nor rotating wave approximation (RWA). ... More

Stitching Videos from a Fisheye Lens Camera and a Wide-Angle Lens Camera for Telepresence RobotsMar 15 2019Many telepresence robots are equipped with a forward-facing camera for video communication and a downward-facing camera for navigation. In this paper, we propose to stitch videos from the FF-camera with a wide-angle lens and the DF-camera with a fisheye ... More

A Contour-Guided Deformable Image Registration Algorithm for Adaptive RadiotherapyJan 06 2013In adaptive radiotherapy, deformable image registration is often conducted between the planning CT and treatment CT (or cone beam CT) to generate a deformation vector field (DVF) for dose accumulation and contour propagation. The auto propagated contours ... More

Manifold Graph with Learned Prototypes for Semi-Supervised Image ClassificationJun 12 2019Recent advances in semi-supervised learning methods rely on estimating categories for unlabeled data using a model trained on the labeled data (pseudo-labeling) and using the unlabeled data for various consistency-based regularization. In this work, we ... More

Bound States in Nanoscale Graphene Quantum Dots in a Continuous Graphene SheetFeb 10 2017Considerable efforts have been made to trap massless Dirac fermions in graphene monolayer, but only quasi-bound states are realized in continuous graphene sheets up to now. Here, we demonstrate the realization of bound states in nanoscale graphene quantum ... More

Experimental Observation of Surface States and Landau Levels Bending in Bilayer GrapheneOct 21 2015We report on microscopic measurements of the low-energy electronic structures both at zigzag and armchair edges of bilayer graphene using scanning tunneling microscopy and spectroscopy (STM and STS). We have found that, both in the absence and in the ... More

Spatial variation of energy gap and Landau levels around gapped bilayer graphene domain wallsSep 15 2015Bilayer graphene contains, compared to graphene monolayer, an additional graphene sheet and, therefore, extra degrees of freedom, making it a unique system for complex electronic states to emerge. Here, we show that there are two types of domain walls, ... More

Spin Splitting Induced by a Competition between Quantum Spin Hall Edge States and Valley Edge StatesOct 07 2013Oct 17 2013Strained graphene with lattice deformations has been demonstrated to give rise to large pseudomagnetic fields and host many exotic properties. Here, we propose a non-magnetic approach to realize a momentum-dependent out-of-plane spin splitting in strained ... More

Unsupervised Representation Learning by Sorting SequencesAug 03 2017We present an unsupervised representation learning approach using videos without semantic labels. We leverage the temporal coherence as a supervisory signal by formulating representation learning as a sequence sorting task. We take temporally shuffled ... More

Learning Structured Semantic Embeddings for Visual RecognitionJun 05 2017Numerous embedding models have been recently explored to incorporate semantic knowledge into visual recognition. Existing methods typically focus on minimizing the distance between the corresponding images and texts in the embedding space but do not explicitly ... More

Relative spectral lag: an new redshift indicator to measure the cosmos with gamma-ray burstsMar 27 2006Mar 28 2006Using 64 ms count data for long gamma-ray bursts ($T_{90}>$2.6s), we analyze the quantity, relative spectral lag (RSL), which is defined as $\tau_{31}/FWHM_{(1)}$, where $\tau_{31}$ is the spectral lag between energy bands 1 and 3, and $FWHM_{(1)}$ denotes ... More

Electric dipole sheets in BaTiO$_{3}$/BaZrO$_{3}$ superlatticesAug 28 2014Dec 25 2014We investigate two-dimensional electric dipole sheets in the superlattice made of BaTiO$_{3}$ and BaZrO$_{3}$ using first-principles-based Monte-Carlo simulations and density functional calculations. Electric dipole domains and complex patterns are observed ... More

Efficient tomography of quantum-optical Gaussian processes probed with a few coherent statesApr 23 2013Aug 08 2013An arbitrary quantum-optical process (channel) can be completely characterized by probing it with coherent states using the recently developed coherent-state quantum process tomography (QPT) [Lobino et al., Science 322, 563 (2008)]. In general, precise ... More

Magnetic-field-controlled negative differential conductance in graphene npn junction resonatorsDec 07 2017Negative differential conductance (NDC), characterized by the decreasing current with increasing voltage, has attracted continuous attention for its various novel applications. The NDC typically exists in a certain range of bias voltages for a selected ... More

Telepresence Interaction by Touching Live Video ImagesDec 14 2015Aug 22 2016This paper presents a telepresence interaction framework based on touchscreen and telepresence-robot technologies. The core of the framework is a new user interface, Touchable live video Image based User Interface, called TIUI. The TIUI allows a remote ... More

Robust Fuzzy-Learning For Partially Overlapping Channels Allocation In UAV Communication NetworksJun 28 2018In this paper, we consider a mesh-structured unmanned aerial vehicle (UAV) networks exploiting partially overlapping channels (POCs). For general data-collection tasks in UAV networks, we aim to optimize the network throughput with constraints on transmission ... More

Experimental evidence for non-Abelian gauge potentials in twisted graphene bilayersApr 09 2015The methods for realizing of non-Abelian gauge potentials have been proposed in many different systems in condensed matter1-5. The simplest realization among them may be in a graphene bilayer obtained by slightly relative rotation between the two layers4. ... More

Quantum Superposition States of Two Valleys in GrapheneAug 22 2014A system in a quantum superposition of distinct states usually exhibits many peculiar behaviors. Here we show that putting quasiparticles of graphene into superpositions of states in the two valleys can complete change the properties of the massless Dirac ... More

DeepMVS: Learning Multi-view StereopsisApr 02 2018We present DeepMVS, a deep convolutional neural network (ConvNet) for multi-view stereo reconstruction. Taking an arbitrary number of posed images as input, we first produce a set of plane-sweep volumes and use the proposed DeepMVS network to predict ... More

Magnetism near half-filling of a van Hove singularity in twisted graphene bilayerNov 06 2018Jan 12 2019Twisted graphene bilayers (TGBs) have low-energy van Hove singularities (VHSs) that are strongly localized around AA-stacked regions of the moire pattern. Therefore, they exhibit novel many-body electronic states, such as Mott-like insulator and unconventional ... More

Leveraging local h-index to identify and rank influential spreaders in networksAug 31 2017Sep 15 2017Identifying influential nodes in complex networks has received increasing attention for its great theoretical and practical applications in many fields. Traditional methods, such as degree centrality, betweenness centrality, closeness centrality, and ... More

Common feature of concave growth pattern of oscillations in terms of speed, acceleration, fuel consumption and emission in car following: experiment and modelingFeb 29 2016This paper has investigated the growth pattern of traffic oscillations by using vehicle trajectory data in a car following experiment. We measured the standard deviation of acceleration, emission and fuel consumption of each vehicle in the car-following ... More

Recognition of convolutional neural network based on CUDA TechnologyMay 30 2015Aug 27 2018For the problem whether Graphic Processing Unit(GPU),the stream processor with high performance of floating-point computing is applicable to neural networks, this paper proposes the parallel recognition algorithm of Convolutional Neural Networks(CNNs).It ... More

A Model of Two-Way Selection System for Human BehaviorJan 21 2013Feb 19 2015We propose a model of two-way selection system. It appears in the processes like choosing a mate between men and women, making contracts between job hunters and recruiters, and trading between buyers and sellers. In this paper, we propose a model of two-way ... More

Learning Blind Video Temporal ConsistencyAug 01 2018Applying image processing algorithms independently to each frame of a video often leads to undesired inconsistent results over time. Developing temporally consistent video-based extensions, however, requires domain knowledge for individual tasks and is ... More

Tunable Bi-frustrated Electron Spin and Charge States in a Cu-Hexaaminobenzene FrameworkNov 27 2017A geometrically frustrated lattice may host frustrated electron spin or charge states that spawn exotic quantum phases. We show that a newly synthesized metal-organic framework of Cu-Hexaaminobenzene [Cu$_3$(HAB)$_2$] exhibits a multi spectra of unusual ... More

Massless Dirac Fermions Trapping in a Quasi-one-dimensional npn Junction of a Continuous Graphene MonolayerFeb 10 2017Massless Dirac fermions in graphene provide unprecedented opportunities to realize the Klein paradox, which is one of the most exotic and striking properties of relativistic particles. In the seminal theoretical work [Katsnelson et al., Nat. Phys. 2 620 ... More

The calibration of DD neutron indium activation diagnostic for Shenguang-III facilityMay 11 2014The indium activation diagnostic was calibrated on an accelerator neutron source in order to diagnose deuterium-deuterium (DD) neutron yields of implosion experiments on Shenguang-III facility. The scattered neutron background of the accelerator room ... More

A Closer Look at Few-shot ClassificationApr 08 2019Few-shot classification aims to learn a classifier to recognize unseen classes during training with limited labeled examples. While significant progress has been made, the growing complexity of network designs, meta-learning algorithms, and differences ... More

Progressive Representation Adaptation for Weakly Supervised Object LocalizationOct 12 2017We address the problem of weakly supervised object localization where only image-level annotations are available for training object detectors. Numerous methods have been proposed to tackle this problem through mining object proposals. However, a substantial ... More

Detecting Adversarial Attacks on Neural Network Policies with Visual ForesightOct 02 2017Deep reinforcement learning has shown promising results in learning control policies for complex sequential decision-making tasks. However, these neural network-based policies are known to be vulnerable to adversarial examples. This vulnerability poses ... More

Improved 2D Intelligent Driver Model simulating synchronized flow and evolution concavity in traffic flowMar 01 2016This paper firstly show that 2 Dimensional Intelligent Driver Model (Jiang et al., PloS one, 9(4), e94351, 2014) is not able to replicate the synchronized traffic flow. Then we propose an improved model by considering the difference between the driving ... More

Two-dimensional spinodal interface in one-step grown graphene-molybdenum carbide heterostructuresMay 10 2018Heterostructures made by stacking different materials on top of each other are expected to exhibit unusual properties and new phenomena. Interface of the heterostructures plays a vital role in determining their properties. Here, we report the observation ... More

Creating and probing wide-bandgap nanoribbon-like structures in a continuous metallic graphene sheetDec 21 2015The light-like dispersion of graphene monolayer results in many novel electronic properties in it1, however, this gapless feature also limits the applications of graphene monolayer in digital electronics2. A rare working solution to generate a moderate ... More