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Results for "Yun Chen"

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Diffusion $K$-means clustering on manifolds: provable exact recovery via semidefinite relaxationsMar 11 2019We introduce the {\it diffusion $K$-means} clustering method on Riemannian submanifolds, which maximizes the within-cluster connectedness based on the diffusion distance. The diffusion $K$-means constructs a random walk on the similarity graph with vertices ... More
Arithmetic monodromy actions on pro-metabelian fundamental groups of once-punctured elliptic curvesOct 16 2017We prove structure theorems for the moduli stack of elliptic curves equipped with $G$-structures, where $G$ is a finite 2-generated metabelian group. In particular, we show that if $G$ has exponent $e$, then there is a subgroup $H\le GL_2(\mathbb{Z}/e)$ ... More
The production of neutral $N^*(11052)$ resonance with hidden beauty from $π^-p$ scatteringDec 28 2016We investigate the discovery potential of the predicted neutral hidden beauty $N^*(11052)$ resonance through $\pi^- p$ scattering within an effective Lagrangian approach. Two reactions $\pi^-p\rightarrow K^-\Sigma^+$ and $\pi^-p\rightarrow \eta_bn$ are ... More
Hybrid Precoding Based on Non-Uniform Quantization Codebook to Reduce Feedback Overhead in Millimeter Wave MIMO SystemsMar 01 2018In this paper, we focus on the design of the hybrid analog/digital precoding in millimeter wave multiple-input multiple-output (MIMO) systems. To reduce the feedback overhead, we propose two non-uniform quantization (NUQ) codebook based hybrid precoding ... More
Self-optimal Piecewise Linearization Based Network Power Flow Constraints in Electrical Distribution System OptimizationSep 07 2018As a representative mathematical expression of power flow (PF) constraints in electrical distribution system (EDS), the piecewise linearization (PWL) based PF constraints have been widely used in different EDS optimization scenarios. However, the linearized ... More
Bridging Dialogue Generation and Facial Expression SynthesisMay 24 2019May 28 2019Spoken dialogue systems that assist users to solve complex tasks such as movie ticket booking have become an emerging research topic in artificial intelligence and natural language processing areas. With a well-designed dialogue system as an intelligent ... More
Optimal environmental tax swaps and double dividend hypothesisDec 05 2015Taking environmental tax rate as given, is there an optimal allocation of tax revenues to benefit economic variables? This paper analyzes this issue in an overlapping-generations model with the pollution-related health damage. It finds the optimal allocations ... More
QRunes: High-Level Language for Quantum-Classical Hybrid ProgrammingJan 24 2019Hybrid quantum-classical algorithms have drawn much attention because of their potential to realize the "quantum advantage" in noisy, intermediate-scale quantum (NISQ) devices. Here we introduce QRunes, a cross-platform quantum language for hybrid programming. ... More
Baryon acoustic oscillation, Hubble parameter, and angular size measurement constraints on the Hubble constant, dark energy dynamics, and spatial curvatureFeb 08 2019Jul 19 2019In this paper we use all available baryon acoustic oscillation, Hubble parameter, and quasar angular size data to constrain six dark energy cosmological models, both spatially flat and non-flat. Depending on the model and data combination considered, ... More
Chromopolarizabilities of bottomonia from the $Υ(2S,3S,4S) \to Υ(1S,2S)ππ$ transitionsJun 13 2019Jun 17 2019The dipion transitions $\Upsilon(2S,3S,4S) \to \Upsilon(1S,2S)\pi\pi$ are systemaically studied by considering the mechanisms of the hadronization of soft gluons, exchanging the bottomoniumlike $Z_b$ states, and the bottom-meson loops. The strong pion-pion ... More
Spatial Lobes Division Based Low Complexity Hybrid Precoding and Diversity Combining for mmWave IoT SystemsMar 01 2018Nov 15 2018This paper focuses on the design of low complexity hybrid analog/digital precoding and diversity combining in millimeter wave (mmWave) Internet of things (IoT) systems. Firstly, by exploiting the sparseness property of the mmWave in the angular domain, ... More
Supplementary Material to: Realization of Three-port Spring Networks with Inerter for Effective Mechanical ControlOct 07 2015This is a supplementary material to "Realization of three-port spring networks with inerter for effective mechanical control" [1], which provides the detailed proofs of some results. For more background information, refer to [2]-[32] and references therein. ... More
$\bar{B}_{d,s} \to D^{*}_{d,s} V$ and $\bar{B}_{d,s}^* \to D_{d,s} V$ decays within QCD Factorization and Possible PuzzlesMay 05 2016Oct 10 2016Motivated by the rapid development of heavy-flavor experiments, phenomenological studies of nonleptonic $\bar{B}_{d,s} \to D^{*}_{d,s} V$ and $\bar{B}_{d,s}^* \to D_{d,s} V$~($V=\rho\,,K^*$) decays are performed within the framework of QCD Factorization. ... More
Encoding Candlesticks as Images for Patterns Classification Using Convolutional Neural NetworksJan 16 2019Candlestick charts display the high, low, open and closing prices for a specific time series. Candlestick patterns emerge because human actions and reactions are patterned and continuously replicate and captured in the formation of the candles. According ... More
Regularized two-stage stochastic variational inequalities for Cournot-Nash equilibrium under uncertaintyJul 17 2019A convex two-stage non-cooperative multi-agent game under uncertainty is formulated as a two-stage stochastic variational inequality (SVI). Under standard assumptions, we provide sufficient conditions for the existence of solutions of the two-stage SVI ... More
Constacyclic Codes over Finite FieldsJan 03 2013An equivalence relation called isometry is introduced to classify constacyclic codes over a finite field; the polynomial generators of constacyclic codes of length $\ell^tp^s$ are characterized, where $p$ is the characteristic of the finite field and ... More
Bilayer Linearized Tensor Renormalization Group Approach for Thermal Tensor NetworksDec 06 2016In this paper, we perform a comprehensive study of the renormalization group (RG) method on thermal tensor networks (TTN). By Trotter-Suzuki decomposition, one obtains the 1+1D TTN representing the partition function of 1D quantum lattice models, and ... More
A new method for analyzing collimation angle of neutron Soller collimatorMar 18 2015Jul 01 2015A new method for analyzing collimation angle of neutron Soller collimator is described. Gaussian distribution formula is used to define the angle distribution function of neutron source and neutron transmission function of Soller collimator. A relationship ... More
Nature of the $Y(4260)$: A light-quark perspectiveFeb 28 2019Apr 18 2019The $Y(4260)$ has been one of the most puzzling pieces among the so-called $XYZ$ states. In this paper, we try to gain insights into the structure of the $Y(4260)$ from the light-quark perspective. We study the dipion invariant mass spectrum of the $e^+ ... More
Pion-nucleon elastic scattering amplitude within covariant baryon chiral perturbation theory up to $O(p^4)$ levelJul 31 2012The $O(p^4)$ calculation on pion-nucleon elastic scattering amplitude in EOMS scheme within covariant baryon chiral perturbation theory is reviewed. Numerical fits to partial wave amplitudes up to $\sqrt{s}=1.13$ GeV and 1.20 GeV are performed and the ... More
A study of $ρ-ω$ mixing in resonance chiral theoryOct 31 2017Dec 26 2017The strong and electromagnetic corrections to $\rho-\omega$ mixing are calculated using a SU(2) version of resonance chiral theory up to next-to-leading orders in $1/N_C$ expansion, respectively. Up to our accuracy, the effect of the momentum dependence ... More
Improved cosmological constraints on the curvature and equation of state of dark energyMay 24 2010Jun 22 2010We apply the Constitution compilation of 397 supernova Ia, the baryon acoustic oscillation measurements including the $A$ parameter, the distance ratio and the radial data, the five-year Wilkinson microwave anisotropy probe and the Hubble parameter data ... More
Towards Automated Infographic Design: Deep Learning-based Auto-Extraction of Extensible TimelineJul 31 2019Designers need to consider not only perceptual effectiveness but also visual styles when creating an infographic. This process can be difficult and time consuming for professional designers, not to mention non-expert users, leading to the demand for automated ... More
Polyadic Constacyclic CodesJul 07 2014For any given positive integer $m$, a necessary and sufficient condition for the existence of Type I $m$-adic constacyclic codes is given. Further, for any given integer $s$, a necessary and sufficient condition for $s$ to be a multiplier of a Type I ... More
Pseudo-Implicit Feedback for Alleviating Data Sparsity in Top-K RecommendationJan 03 2019We propose PsiRec, a novel user preference propagation recommender that incorporates pseudo-implicit feedback for enriching the original sparse implicit feedback dataset. Three of the unique characteristics of PsiRec are: (i) it views user-item interactions ... More
Wave-shape function analysis -- when cepstrum meets time-frequency analysisMay 06 2016Nov 22 2016We propose to combine cepstrum and nonlinear time-frequency (TF) analysis to study mutiple component oscillatory signals with time-varying frequency and amplitude and with time-varying non-sinusoidal oscillatory pattern. The concept of cepstrum is applied ... More
Study of η-η' mixing from radiative decay processesJan 10 2012We perform a thorough analysis of the VP\gamma(\gamma*) and P\gamma\gamma(\gamma*) decays in the resonance chiral theory, where V stand for the vector resonances \rho, K*, \omega, \phi, P stand for \pi, K, \eta, \eta' and \gamma* subsequently decays into ... More
Radiative transition processes of light vector resonances in a chiral frameworkNov 14 2013Nov 05 2014Within the framework of chiral effective field theory, we study various electromagnetic processes with light vector resonances: $K^{\ast}(892)\to K\gamma$, $e^{+}e^{-}\to K^{\ast}(892)K $ and the $\omega\pi\gamma^\ast$ form factors. With two multiplets ... More
ALMA Submillimeter Continuum Imaging of the Host Galaxies of GRB021004 and GRB080607Nov 12 2012We report 345 GHz continuum observations of the host galaxies of gamma-ray bursts (GRBs) 021004 and 080607 at z>2 using the Atacama Large Millimeter/Submillimeter Array (ALMA) in Cycle 0. Of the two bursts, GRB021004 is one of the few GRBs that originates ... More
Non-equilibrium quantum phase transition via entanglement decoherence dynamicsOct 13 2016We investigate the decoherence dynamics of continuous variable entanglement as the system-environment coupling strength varies from the weak-coupling to the strong-coupling regimes. Due to the existence of localized modes in the strong-coupling regime, ... More
Looking for Cosmological Alfven Waves in WMAP DataMar 30 2004Apr 27 2004A primordial cosmological magnetic field induces and supports vorticity or Alfven waves, which in turn generate cosmic microwave background (CMB) anisotropies. A homogeneous primordial magnetic field with fixed direction induces correlations between the ... More
Physical properties variation across the green valley for local galaxiesAug 06 2018We have selected a sample of nearby galaxies from Sloan Digital Sky Survey Data Release 7 (SDSS DR7) to investigate the physical properties variation from blue cloud to green valley to red sequence. The sample is limited in a narrow range in color-stellar ... More
Real-time On-Demand Crowd-powered Entity ExtractionApr 12 2017Dec 06 2017Output-agreement mechanisms such as ESP Game have been widely used in human computation to obtain reliable human-generated labels. In this paper, we argue that a "time-limited" output-agreement mechanism can be used to create a fast and robust crowd-powered ... More
Twisted vertex operators and unitary Lie algebrasMar 18 2014A representation of the central extension of the unitary Lie algebra coordinated with a skew Laurent polynomial ring is constructed using vertex operators over an integral Z_2-lattice. The irreducible decomposition of the representation is explicitly ... More
Diagnosabilities of regular networksAug 09 2004In this paper, we study diagnosabilities of multiprocessor systems under two diagnosis models: the PMC model and the comparison model. In each model, we further consider two different diagnosis strategies: the precise diagnosis strategy proposed by Preparata ... More
A Support Tensor Train MachineApr 17 2018There has been growing interest in extending traditional vector-based machine learning techniques to their tensor forms. An example is the support tensor machine (STM) that utilizes a rank-one tensor to capture the data structure, thereby alleviating ... More
Enabling the self-contained refrigerator to work beyond its limits by filtering the reservoirNov 30 2017In this paper, we study the quantum self-contained refrigerator [N. Linden, S. Popescu and P. Skrzypczyk, Phys. Rev. Lett. \textbf{105}, 130401 (2010)] in the strong internal coupling regime with engineered reservoirs. We find that if some modes of the ... More
Learning Disentangled Representations for Timber and Pitch in Music AudioNov 08 2018Timbre and pitch are the two main perceptual properties of musical sounds. Depending on the target applications, we sometimes prefer to focus on one of them, while reducing the effect of the other. Researchers have managed to hand-craft such timbre-invariant ... More
Using a phenomenological model to test the coincidence problem of dark energyJan 11 2010Mar 10 2010By assuming a phenomenological form for the ratio of the DE and DM densities $\rho_X\propto \rho_{m} a^{\xi}$ (Dalal et al.2001), we discuss the cosmic coincidence problem in light of current observational data. $\xi$ is a key parameter to denote the ... More
Assessing the effect of lens mass model in cosmological application with updated galaxy-scale strong gravitational lensing sampleSep 26 2018Jul 12 2019By comparing the dynamical and lensing masses of early-type lens galaxies, one can constrain both the cosmological parameters and the density profiles of galaxies. We explore the constraining power on cosmological parameters and the effect of the lens ... More
Spot the Difference by Object DetectionJan 03 2018In this paper, we propose a simple yet effective solution to a change detection task that detects the difference between two images, which we call "spot the difference". Our approach uses CNN-based object detection by stacking two aligned images as input ... More
Dynamics of Social Interactions and Agent Spreading in Social Insects Colonies: Effects of Environmental Events and Spatial HeterogeneityJun 28 2019The relationship between division of labor and individuals' spatial behavior in social insect colonies provides a useful context to study how social interactions influence the spreading of agent (which could be information or virus) across distributed ... More
Dual Supervised Learning for Natural Language Understanding and GenerationMay 15 2019May 28 2019Natural language understanding (NLU) and natural language generation (NLG) are both critical research topics in the NLP field. Natural language understanding is to extract the core semantic meaning from the given utterances, while natural language generation ... More
Analyses of pion-nucleon elastic scattering amplitudes up to $O(p^4)$ in extended-on-mass-shell subtraction schemeDec 09 2012Apr 20 2013We extend the analysis of elastic pion-nucleon scattering up to $O(p^4)$ level using extended-on-mass-shell subtraction scheme within the framework of covariant baryon chiral perturbation theory. Numerical fits to partial wave phase shift data up to $\sqrt{s}=1.13$ ... More
Realizing bending waveguides with anisotropic epsilon-near-zero metamaterialsJan 13 2012Mar 05 2012We study metamaterials with an anisotropic effective permittivity tensor in which one component is near zero. We find that such an anisotropic metamaterial can be used to control wave propagation and construct almost perfect bending waveguides with a ... More
Accurate Sampling Timing Acquisition for Baseband OFDM Power-line Communication in Non-Gaussian NoiseNov 08 2012Jan 11 2013In this paper, a novel technique is proposed to address the joint sampling timing acquisition for baseband and broadband power-line communication (BB-PLC) systems using Orthogonal-Frequency-Division-Multiplexing (OFDM), including the sampling phase offset ... More
VQNet: Library for a Quantum-Classical Hybrid Neural NetworkJan 26 2019Deep learning is a modern approach to realize artificial intelligence. Many frameworks exist to implement the machine learning task; however, performance is limited by computing resources. Using a quantum computer to accelerate training is a promising ... More
Shock responses of nanoporous aluminum by molecular dynamics simulationsOct 13 2016We present systematic investigations on the shock responses of nanoporous aluminum (np-Al) by nonequilibrium molecular dynamics simulations. The dislocation nucleation sites are found to concentrate in low latitude region near the equator of the spherical ... More
Detection of Gene-Gene Interactions by Multistage Sparse and Low-Rank RegressionApr 13 2013A daunting challenge faced by modern biological sciences is finding an efficient and computationally feasible approach to deal with the curse of high dimensionality. The problem becomes even more severe when the research focus is on interactions. To improve ... More
Prediction of temperature distribution in turbulent Rayleigh-Benard convectionJan 09 2014A quantitative theory is developed for the vertical mean temperature profile (MTP) in turbulent Rayleigh-Benard convection (RBC), which explains the recent experimental and numerical observations of a logarithmic law by Ahlers et al.(Phys. Rev. Lett., ... More
Integrating multiple random sketches for singular value decompositionAug 29 2016The singular value decomposition (SVD) of large-scale matrices is a key tool in data analytics and scientific computing. The rapid growth in the size of matrices further increases the need for developing efficient large-scale SVD algorithms. Randomized ... More
Long-Distance Measurement-Device-Independent Multiparty Quantum CommunicationDec 02 2014Mar 04 2015The Greenberger-Horne-Zeilinger (GHZ) entanglement, originally introduced to uncover the extreme violation of local realism against quantum mechanics, is an important resource for multiparty quantum communication tasks. But the low intensity and fragility ... More
Boundary layer structure in turbulent Rayleigh-Bénard convection in a slim boxJan 23 2019The logarithmic law of mean temperature profile has been observed in different regions in Rayleigh-B\'enard turbulence. However, how thermal plumes correlate to the log law of temperature and how the velocity profile changes with pressure gradient are ... More
Measurement-device-independent quantum key distribution based on Bell's inequalityJul 28 2014We propose two quantum key distribution (QKD) protocols based on Bell's inequality, which can be considered as modified time-reversed E91 protocol. Similar to the measurement-device-independent quantum key distribution (MDI-QKD) protocol, the first scheme ... More
FEAST: An Automated Feature Selection Framework for Compilation TasksOct 29 2016The success of the application of machine-learning techniques to compilation tasks can be largely attributed to the recent development and advancement of program characterization, a process that numerically or structurally quantifies a target program. ... More
Superconducting properties and topological nodal line signatures in centrosymmetric compound SnTaS$_2$May 04 2019We report the magnetization, electrical resistivity, specific heat measurements and band structure calculations of layered superconductor SnTaS$_2$. The experiments are performed on single crystals grown by chemical vapor transport method. The resistivity ... More
Open DNN Box by Power Side-Channel AttackJul 21 2019Deep neural networks are becoming popular and important assets of many AI companies. However, recent studies indicate that they are also vulnerable to adversarial attacks. Adversarial attacks can be either white-box or black-box. The white-box attacks ... More
Moduli Interpretations for Noncongruence Modular CurvesOct 19 2015Aug 20 2016We define the notion of a $G$-structure for elliptic curves, where $G$ is a finite 2-generated group. When $G$ is abelian, a $G$-structure is the same as a classical congruence level structure. There is a natural action of $\text{SL}_2(\mathbb{Z})$ on ... More
Galaxy clustering, CMB and supernova data constraints on $φ$CDM model with massive neutrinosJul 08 2015Dec 11 2015We investigate a scalar field dark energy model (i.e., $\phi$CDM model) with massive neutrinos, where the scalar field possesses an inverse power-law potential, i.e., $V(\phi)\propto {\phi}^{-\alpha}$ ($\alpha>0$). We find that the sum of neutrino masses ... More
Pion-induced production of hidden-charm pentaquarks $P_{c}(4312),P_{c}(4440)$, and $P_{c}(4457)$Jun 07 2019The production of the hidden-charm pentaquarks $P_{c}$ via pion-induced reaction on a proton target is investigated within an effective Lagrangian approach. Three experimentally observed states, $P_c(4312)$, $P_c(4440)$, and $P_c(4457)$, are considered ... More
Highly Linear, Broadband Optical Modulator Based on Electro-optic PolymerMar 01 2014In this paper, we present the design, fabrication and characterization of a traveling wave directional coupler modulator based on electro-optic polymer, which is able to provide both high linearity and broad bandwidth. The high linearity is realized by ... More
End-to-End Joint Learning of Natural Language Understanding and Dialogue ManagerDec 03 2016Jan 04 2017Natural language understanding and dialogue policy learning are both essential in conversational systems that predict the next system actions in response to a current user utterance. Conventional approaches aggregate separate models of natural language ... More
Inverse Projection Representation and Category Contribution Rate for Robust Tumor RecognitionFeb 09 2019Jun 27 2019Sparse representation based classification (SRC) methods have achieved remarkable results. SRC, however, still suffer from requiring enough training samples, insufficient use of test samples and instability of representation. In this paper, a stable inverse ... More
Entropy-Enhanced Multimodal Attention Model for Scene-Aware Dialogue GenerationAug 22 2019With increasing information from social media, there are more and more videos available. Therefore, the ability to reason on a video is important and deserves to be discussed. TheDialog System Technology Challenge (DSTC7) (Yoshino et al. 2018) proposed ... More
End-to-End Reinforcement Learning of Dialogue Agents for Information AccessSep 03 2016This paper proposes \emph{KB-InfoBot}---a dialogue agent that provides users with an entity from a knowledge base (KB) by interactively asking for its attributes. All components of the KB-InfoBot are trained in an end-to-end fashion using reinforcement ... More
Chromopolarizability of charmonium and $ππ$ final state interaction revisitedJan 14 2019Jan 17 2019The chromopolarizability of a quarknonium describes the quarknonium's interaction with soft gluonic fields and can be measured in the heavy quarkonium decays. Within the framework of dispersion theory which consider the $\pi\pi$ final state interaction ... More
Loss-induced enhanced transmission in anisotropic density-near-zero acoustic metamaterialsApr 20 2016Anisotropic density-near-zero (ADNZ) acoustic metamaterials are investigated theoretically and numerically in this letter and are shown to exhibit extraordinary transmission enhancement when material loss is induced. The enhanced transmission is due to ... More
Moduli Interpretations for Noncongruence Modular CurvesOct 19 2015Sep 07 2017We define the notion of a $G$-structure for elliptic curves, where $G$ is a finite 2-generated group. When $G$ is abelian, a $G$-structure is the same as a classical congruence level structure. There is a natural action of $\text{SL}_2(\mathbb{Z})$ on ... More
Predictions of $Υ(4S) \to h_b(1P,2P) π^+π^-$ transitionsJul 12 2019In this work, we study the contributions of the intermediate bottomoniumlike $Z_b$ states and the bottom meson loops in the heavy quark spin flip transitions $\Upsilon(4S) \to h_b(1P,2P) \pi^+\pi^-$. Depending on the constructive or destructive interferences ... More
Constraints on a $φ$CDM model from strong gravitational lensing and updated Hubble parameter measurementsDec 05 2013Jan 18 2015We constrain the scalar field dark energy model with an inverse power-law potential, i.e., $V(\phi)\propto {\phi}^{-\alpha}$ ($\alpha>0$), from a set of recent cosmological observations by compiling an updated sample of Hubble parameter measurements including ... More
High Dynamic Range Electric Field Sensor for Electromagnetic Pulse DetectionMar 01 2014We design a high dynamic range electric field sensor based on domain inverted electro-optic (E-O) polymer Y-fed directional coupler for electromagnetic wave detection. This electrode-less, all optical, wideband electrical field sensor is fabricated using ... More
Adversarial Advantage Actor-Critic Model for Task-Completion Dialogue Policy LearningOct 31 2017Feb 08 2018This paper presents a new method --- adversarial advantage actor-critic (Adversarial A2C), which significantly improves the efficiency of dialogue policy learning in task-completion dialogue systems. Inspired by generative adversarial networks (GAN), ... More
Investigation of Language Understanding Impact for Reinforcement Learning Based Dialogue SystemsMar 21 2017Language understanding is a key component in a spoken dialogue system. In this paper, we investigate how the language understanding module influences the dialogue system performance by conducting a series of systematic experiments on a task-oriented neural ... More
HI Observations of Major-Merger Pairs at z = 0: atomic gas and star formationApr 10 2018Apr 11 2018We present a study of the HI gas content of a large K-band selected sample of 88 close major-merger pairs of galaxies (H-KPAIR) which were observed by $\it Herschel$. We obtained the 21 cm HI fine-structure emission line data for a total of 70 pairs from ... More
Double-Head RCNN: Rethinking Classification and Localization for Object DetectionApr 13 2019May 31 2019Modern R-CNN based detectors apply a head to extract Region of Interest (RoI) features for both classification and localization tasks. In contrast, we found that these two tasks have opposite preferences towards two widely used head structures (i.e. fully ... More
Knowledge as a Teacher: Knowledge-Guided Structural Attention NetworksSep 12 2016Natural language understanding (NLU) is a core component of a spoken dialogue system. Recently recurrent neural networks (RNN) obtained strong results on NLU due to their superior ability of preserving sequential information over time. Traditionally, ... More
Prediction Model for Semitransparent Watercolor Pigment Mixtures Using Deep Learning with a Dataset of Transmittance and ReflectanceMar 30 2019Learning color mixing is difficult for novice painters. In order to support novice painters in learning color mixing, we propose a prediction model for semitransparent pigment mixtures and use its prediction results to create a Smart Palette system. Such ... More
Simplex Search Based Brain Storm OptimizationOct 24 2017Jun 06 2018Through modeling human's brainstorming process, the brain storm optimization (BSO) algorithm has become a promising population-based evolutionary algorithm. However, BSO is pointed out that it possesses a degenerated L-curve phenomenon, i.e., it often ... More
Long distance measurement-device-independent quantum key distribution with coherent-state superpositionsSep 19 2014Measurement-device-independent quantum key distribution (MDI-QKD) with decoy-state method is believed to be securely applied to defeat various hacking attacks in practical quantum key distribution systems. Recently, the coherent-state superpositions (CSS) ... More
Superconductivity from Meissner Effect and Zero Resistivity in a Phenyl MoleculeApr 09 2018Recently, phenyl molecules have been reported to exhibit Meissner effect mainly from magnetization measurements. Realizing zero-resistivity state in these materials seems a challenge due to many practical difficulties but is required to characterize the ... More
EmotionX-IDEA: Emotion BERT -- an Affectional Model for ConversationAug 17 2019In this paper, we investigate the emotion recognition ability of the pre-training language model, namely BERT. By the nature of the framework of BERT, a two-sentence structure, we adapt BERT to continues dialogue emotion prediction tasks, which rely heavily ... More
Alignments of Group Galaxies with Neighboring GroupsOct 19 2008Sep 03 2009Using a sample of galaxy groups found in the Sloan Digital Sky Survey Data Release 4, we measure the following four types of alignment signals: (1) the alignment between the distributions of the satellites of each group relative to the direction of the ... More
Unexpected sawtooth artifact in beat-to-beat pulse transit time measured from patient monitor dataAug 27 2018Aug 09 2019Object: It is increasingly popular to collect as much data as possible in the hospital setting from clinical monitors for research purposes. However, in this setup the data calibration issue is often not discussed and, rather, implicitly assumed, while ... More
Show, Match and Segment: Joint Learning of Semantic Matching and Object Co-segmentationJun 13 2019We present an approach for jointly matching and segmenting object instances of the same category within a collection of images. In contrast to existing algorithms that tackle the tasks of semantic matching and object co-segmentation in isolation, our ... More
The beaming effect and $\rmγ$-ray emission for Fermi blazarsAug 11 2015We study the $\rm{\gamma}$-ray luminosity and beaming effect for Fermi blazars. Our results are as follows. (i) There are significant correlations between $\rm{\gamma}$-ray luminosity and radio core luminosity, and between $\rm{\gamma}$-ray luminosity ... More
EO-polymer waveguide based high dynamic range EM wave sensorsMar 06 2014In this paper, we present the design and experimental demonstration of a high dynamic range electric field sensor based on electro-optic (EO) polymer directional coupler waveguides that offers the strong and ultra-fast EO response of EO polymer. As compared ... More
Quantum correlation enhanced weak field detection in optomechanical systemNov 20 2018We propose a theoretical scheme to enhance the signal-to-noise ratio in ultrasensitive detection with the help of quantum correlation. By introducing the auxiliary oscillator and treated as an added probe for weak field detection, the additional noise ... More
Large Scale Incremental LearningMay 30 2019Modern machine learning suffers from catastrophic forgetting when learning new classes incrementally. The performance dramatically degrades due to the missing data of old classes. Incremental learning methods have been proposed to retain the knowledge ... More
64-Qubit Quantum Circuit SimulationFeb 20 2018Jul 12 2018Classical simulations of quantum circuits are limited in both space and time when the qubit count is above 50, the realm where quantum supremacy reigns. However, recently, for the low depth circuit with more than 50 qubits, there are several methods of ... More
Evolution of Cooperation among Mobile AgentsJun 04 2010Feb 19 2011We study the effects of mobility on the evolution of cooperation among mobile players, which imitate collective motion of biological flocks and interact with neighbors within a prescribed radius $R$. Adopting the prisoner's dilemma game and the snowdrift ... More
Functional Inverse Regression in an Enlarged Dimension Reduction SpaceMar 12 2015We consider an enlarged dimension reduction space in functional inverse regression. Our operator and functional analysis based approach facilitates a compact and rigorous formulation of the functional inverse regression problem. It also enables us to ... More
Ward Identity Implies Recursion Relation at Tree and Loop LevelJul 15 2012Feb 09 2013In this article, we use Ward identity to calculate tree and one loop level off shell amplitudes in pure Yang-Mills theory with a pair of external lines complexified. We explicitly prove Ward identity at tree and one loop level using Feynman rules, and ... More
Galaxy cluster angular size data constraints on dark energyMay 27 2011Jul 20 2011We use angular size versus redshift data for galaxy clusters from Bonamente et al. (2006) to place constraints on model parameters of constant and time-evolving dark energy cosmological models. These constraints are compatible with those from other recent ... More
Parabolic Constructions of Asymptotically Flat 3-metrics of Prescribed Scalar CurvatureDec 04 2012In 1993, Bartnik introduced a quasi-spherical construction of metrics of prescribed scalar curvature on 3-manifolds. Under quasi-spherical ansatz, the problem is converted into the initial value problem for a semi-linear parabolic equation of the lapse ... More
Hanson-Wright inequality in Hilbert spaces with application to $K$-means clustering for non-Euclidean dataOct 26 2018We derive a dimensional-free Hanson-Wright inequality for quadratic forms of independent sub-gaussian random variables in a separable Hilbert space. Our inequality is an infinite-dimensional generalization of the classical Hanson-Wright inequality for ... More
Majorana Fermions in Periodically Driven Semiconductor-Superconductor HeterostructureJun 17 2013We propose a new approach to create Majorana fermions at the edge of a periodically driven semiconductor-superconductor Heterostructure. We calculate the quasi-energy spectrum of the periodically driven Heterostructure by using the Floquet's theory. When ... More
A Stable and Effective Learning Strategy for Trainable Greedy DecodingApr 21 2018Aug 28 2018Beam search is a widely used approximate search strategy for neural network decoders, and it generally outperforms simple greedy decoding on tasks like machine translation. However, this improvement comes at substantial computational cost. In this paper, ... More
Polarization State Dynamics of Single Photon Pulse Under Stochastic Polarization Mode Dispersion for Optical Fiber Quantum ChannelsAug 30 2009We investigate the polarization state dynamics of single photon pulse for optical fiber quantum communication channels. On the basis of a birefringence vector model in which amplitude and direction are both stochastic variables, Jones vector is obtained ... More
RAP-Net: Recurrent Attention Pooling Networks for Dialogue Response SelectionMar 21 2019The response selection has been an emerging research topic due to the growing interest in dialogue modeling, where the goal of the task is to select an appropriate response for continuing dialogues. To further push the end-to-end dialogue model toward ... More
Strongly enhanced light-matter interaction in a hybrid photonic-plasmonic resonatorJun 12 2012We propose a hybrid photonic-plasmonic resonant structure which consists of a metal nanoparticle (MNP) and a whispering gallery mode (WGM) microcavity. It is found that the hybrid mode enables a strong interaction between the light and matter, and the ... More