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Browsing by Author "Li, L"
Now showing items 120 of 23

A D<inf>2</inf>O detector for flux normalization of a pion decayatrest neutrino source
Akimov, D; An, P; Awe, C; Barbeau, PS; Becker, B; Belov, V; Bernardi, I; ... (78 authors) (Journal of Instrumentation, 20210801)We report on the technical design and expected performance of a 592 kg heavywaterCherenkov detector to measure the absolute neutrino flux from the piondecayatrest neutrino source at the Spallation Neutron Source (SNS) ... 
A stochastic version of Stein Variational Gradient Descent for efficient sampling
Li, L; Li, Y; Liu, JG; Liu, Z; Lu, JWe propose in this work RBMSVGD, a stochastic version of Stein Variational Gradient Descent (SVGD) method for efficiently sampling from a given probability measure and thus useful for Bayesian inference. The method is to apply ... 
Changes to the North Atlantic subtropical high and its role in the intensification of summer rainfall variability in the southeastern United States
Li, W; Li, L; Fu, R; Deng, Y; Wang, H (Journal of Climate, 20110301)This study investigates the changes of the North Atlantic subtropical high (NASH) and its impact on summer precipitation over the southeastern (SE) United States using the 850hPa geopotential height field in the National ... 
Contribution of the North Atlantic subtropical high to regional climate model (RCM) skill in simulating southeastern United States summer precipitation
Li, L; Li, W; Jin, J (Climate Dynamics, 20150726)© 2014, SpringerVerlag Berlin Heidelberg.This study assesses the skill of advanced regional climate models (RCMs) in simulating southeastern United States (SE US) summer precipitation and explores the physical mechanisms ... 
Development of a $^{83\mathrm{m}}$Kr source for the calibration of the CENNS10 Liquid Argon Detector
Collaboration, COHERENT; Akimov, D; An, P; Awe, C; Barbeau, PS; Becker, B; Belov, V; ... (80 authors) (Journal of Instrumentation, 20201021)We report on the preparation of and calibration measurements with a $^{83\mathrm{m}}$Kr source for the CENNS10 liquid argon detector. $^{83\mathrm{m}}$Kr atoms generated in the decay of a $^{83}$Rb source were introduced ... 
Dynamic prediction for multiple repeated measures and event time data: An application to Parkinson’s disease
Wang, J; Luo, S; Li, L (Annals of Applied Statistics, 2017) 
Dynamic prediction of renal failure using longitudinal biomarkers in a cohort study of chronic kidney disease
Li, L; Luo, S; Hu, B; Greene, T (Statistics in Biosciences, 2016) 
First Probe of SubGeV Dark Matter Beyond the Cosmological Expectation with the COHERENT CsI Detector at the SNS
Akimov, D; An, P; Awe, C; Barbeau, PS; Becker, B; Belov, V; Bernardi, I; ... (76 authors)The COHERENT collaboration searched for scalar dark matter particles produced at the Spallation Neutron Source with masses between 1 and 220~MeV/c$^2$ using a CsI[Na] scintillation detector sensitive to nuclear ... 
Fractional stochastic differential equations satisfying fluctuationdissipation theorem
Li, L; Liu, JG; Lu, Jianfeng (20170423)We consider in this work stochastic differential equation (SDE) model for particles in contact with a heat bath when the memory effects are nonnegligible. As a result of the fluctuationdissipation theorem, the differential ... 
Fractional Stochastic Differential Equations Satisfying FluctuationDissipation Theorem
Li, L; Liu, JG; Lu, J (Journal of Statistical Physics, 20171001)© 2017, Springer Science+Business Media, LLC. We propose in this work a fractional stochastic differential equation (FSDE) model consistent with the overdamped limit of the generalized Langevin equation model. As a result ... 
Impact of the Interdecadal Pacific Oscillation on Tropical Cyclone Activity in the North Atlantic and Eastern North Pacific.
Li, W; Li, L; Deng, Y (Sci Rep, 20150724)Tropical cyclones (TCs) are among the most devastating weather systems affecting the United States and Central America (USCA). Here we show that the Interdecadal Pacific Oscillation (IPO) strongly modulates TC activity over ... 
Lognormal and gamma mixed negative binomial regression
Zhou, M; Li, L; Dunson, D; Carin, L (Proceedings of the 29th International Conference on Machine Learning, ICML 2012, 20121010)In regression analysis of counts, a lack of simple and efficient algorithms for posterior computation has made Bayesian approaches appear unattractive and thus underdeveloped. We propose a lognormal and gamma mixed negative ... 
Measurement of scintillation response of CsI[Na] to lowenergy nuclear recoils by COHERENT
Akimov, D; An, P; Awe, C; Barbeau, PS; Becker, B; Belov, V; Bernardi, I; ... (77 authors)We present results of several measurements of CsI[Na] scintillation response to 360 keV energy nuclear recoils performed by the COHERENT collaboration using tagged neutron elastic scattering experiments and an endpoint ... 
Measurement of the Coherent Elastic NeutrinoNucleus Scattering Cross Section on CsI by COHERENT
Akimov, D; An, P; Awe, C; Barbeau, PS; Becker, B; Belov, V; Bernardi, I; ... (76 authors)We measured the cross section of coherent elastic neutrinonucleus scattering (\cevns{}) using a CsI[Na] scintillating crystal in a high flux of neutrinos produced at the Spallation Neutron Source (SNS) at Oak Ridge ... 
Monitoring the SNS basement neutron background with the MARS detector
Collaboration, COHERENT; Akimov, D; An, P; Awe, C; Barbeau, PS; Becker, B; Belov, V; ... (78 authors) (JINST, 20211205)We present the analysis and results of the first dataset collected with the MARS neutron detector deployed at the Oak Ridge National Laboratory Spallation Neutron Source (SNS) for the purpose of monitoring and characterizing ... 
Nested dictionary learning for hierarchical organization of imagery and text
Li, L; Zhang, XX; Zhou, M; Carin, L (Uncertainty in Artificial Intelligence  Proceedings of the 28th Conference, UAI 2012, 20121201)A treebased dictionary learning model is developed for joint analysis of imagery and associated text. The dictionary learning may be applied directly to the imagery from patches, or to general feature vectors extracted ... 
Numerical methods for stochastic differential equations based on Gaussian mixture
Li, L; Lu, J; Mattingly, JC; Wang, LWe develop in this work a numerical method for stochastic differential equations (SDEs) with weak second order accuracy based on Gaussian mixture. Unlike the conventional higher order schemes for SDEs based on It\^oTayl... 
Quenching factor measurements of neon nuclei in neon gas
Balogh, L; Beaufort, C; Brossard, A; Caron, JF; Chapellier, M; Coquillat, JM; Corcoran, EC; ... (50 authors)The NEWSG collaboration uses Spherical Proportional Counters (SPCs) to search for weakly interacting massive particles (WIMPs). In this paper, we report the first measurements of the nuclear quenching factor in neon gas ... 
Simulating the neutrino flux from the Spallation Neutron Source for the COHERENT experiment
Collaboration, COHERENT; Akimov, D; An, P; Awe, C; Barbeau, PS; Becker, B; Belov, V; ... (83 authors)The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory is a pulsed source of neutrons and, as a byproduct of this operation, an intense source of pulsed neutrinos via stoppedpion decay. The COHERENT ... 
Thermodynamic and dynamic contributions to future changes in regional precipitation variance: focus on the Southeastern United States
Li, L; Li, W (Climate Dynamics, 20140702)© 2014, SpringerVerlag Berlin Heidelberg.The frequency and severity of extreme events are tightly associated with the variance of precipitation. As climate warms, the acceleration in hydrological cycle is likely to enhance ...