Now showing items 15833-15852 of 33981

    • Last Glacial Maximum and deglacial abyssal seawater oxygen isotopic ratios 

      Wunsch, Carl Isaac (Copernicus GmbH, 2016-06)
      An earlier analysis of pore-water salinity (chlorinity) in two deep-sea cores, using terminal constraint methods of control theory, concluded that although a salinity amplification in the abyss was possible during the LGM, ...
    • Late Bayesian inference in mental transformations 

      Remington, Evan D; Parks, Tiffany V; Jazayeri, Mehrdad (Nature Publishing Group, 2018-10)
      Many skills rely on performing noisy mental computations on noisy sensory measurements. Bayesian models suggest that humans compensate for measurement noise and reduce behavioral variability by biasing perception toward ...
    • Late-time structure of the Bunch-Davies de Sitter wavefunction 

      Anninos, Dionysios; Anous, Tarek; Freedman, Daniel Z.; Konstantinidis, George (Institute of Physics Publishing/SISSA, 2015-11)
      We examine the late time behavior of the Bunch-Davies wavefunction for interacting light fields in a de Sitter background. We use perturbative techniques developed in the framework of AdS/CFT, and analytically continue to ...
    • Latent hierarchical structural learning for object detection 

      Zhu, Long; Chen, Yuanhao; Yuille, Alan; Freeman, William T. (Institute of Electrical and Electronics Engineers (IEEE), 2010-08)
      We present a latent hierarchical structural learning method for object detection. An object is represented by a mixture of hierarchical tree models where the nodes represent object parts. The nodes can move spatially to ...
    • Latent indices in assortative matching models 

      Diamond, William; Agarwal, Nikhil (The Econometric Society, 2017-11)
      A large class of two-sided matching models that include both transferable and non-transferable utility result in positive assortative matching along a latent index. Data from matching markets, however, may not exhibit ...
    • A Latent Pro-survival Function for the Mir-290-295 Cluster in Mouse Embryonic Stem Cells 

      Zheng, Grace X. Y.; Ravi, Arvind; Calabrese, J. Mauro; Medeiros, Lea Ann; Kirak, Oktay; e.a. (Public Library of Science, 2011-05)
      MicroRNAs (miRNAs) post-transcriptionally regulate the expression of thousands of distinct mRNAs. While some regulatory interactions help to maintain basal cellular functions, others are likely relevant in more specific ...
    • A latent serotonin-1A receptor-gated spinal afferent pathway inhibiting breathing 

      Yang, Liang; Song, Gang; Ning, Yinghui; Poon, Chi-Sang (Springer Berlin Heidelberg, 2015-12)
      Spinal afferents such as nociceptive afferents and group III–IV muscle afferents are known to exert an acute excitatory effect on breathing when activated. Here, we report the surprising existence of latent spinal afferents ...
    • A Latent Source Model for Online Collaborative Filtering 

      Bresler, Guy; Chen, George; Shah, Devavrat (Neural Information Processing Systems Foundation, Inc., 2014-12)
      Despite the prevalence of collaborative filtering in recommendation systems, there has been little theoretical development on why and how well it works, especially in the “online” setting, where items are recommended to ...
    • A Latent Source Model for Patch-Based Image Segmentation 

      Shah, Devavrat; Chen, George; Golland, Polina (Springer International Publishing, 2015-11)
      Despite the popularity and empirical success of patch-based nearest-neighbor and weighted majority voting approaches to medical image segmentation, there has been no theoretical development on when, why, and how well these ...
    • Latent topic discovery of clinical concepts from hospital discharge summaries of a heterogeneous patient cohort 

      Saeed, Mohammed; Lehman, Li-Wei; Long, William F.; Mark, Roger G (Institute of Electrical and Electronics Engineers (IEEE), 2014-11)
      Patients in critical care often exhibit complex disease patterns. A fundamental challenge in clinical research is to identify clinical features that may be characteristic of adverse patient outcomes. In this work, we propose ...
    • Latent Variable Graphical Model Selection Via Convex Optimization 

      Chandrasekaran, Venkat; Parrilo, Pablo A.; Willsky, Alan S. (Institute of Electrical and Electronics Engineers (IEEE), 2011-02)
      Suppose we have samples of a subset of a collection of random variables. No additional information is provided about the number of latent variables, nor of the relationship between the latent and observed variables. Is it ...
    • Latent variable graphical model selection via convex optimization 

      Willsky, Alan S. (Institute of Mathematical Statistics, 2012)
      Suppose we observe samples of a subset of a collection of random variables. No additional information is provided about the number of latent variables, nor of the relationship between the latent and observed variables. Is ...
    • A latent variable ranking model for content-based retrieval 

      Quattoni, Ariadna; Carreras, Xavier; Carreras, Xavier (Springer Berlin / Heidelberg, 2012-04)
      Since their introduction, ranking SVM models [11] have become a powerful tool for training content-based retrieval systems. All we need for training a model are retrieval examples in the form of triplet constraints, i.e. ...
    • Lateral heterojunction photodetector consisting of molecular organic and colloidal quantum dot thin films 

      Osedach, Timothy Paul; Geyer, Scott Mitchell; Ho, John C.; Arango, Alexi C.; Bawendi, Moungi G.; e.a. (American Institute of Physics, 2009-01)
      We demonstrate a heterojunction photodetector of lateral geometry that utilizes an evaporated film of the hole-transporting molecular material N,N′-bis(3-methylphenyl)-N,N′-bis(phenyl)-9,9-spirobifluorene (spiro-TPD) as a ...
    • Lateral Shift Makes a Ground-Plane Cloak Detectable 

      Zhang, Baile; Chan, Tucker R.; Wu, Bae-Ian (American Physical Society, 2010-06)
      We examine the effectiveness of the ground-plane invisibility cloak generated from quasiconformal mapping of electromagnetic space. This cloak without anisotropy will generally lead to a lateral shift of the scattered wave, ...
    • Lateralization of face processing in the human brain 

      Meng, Ming; Cherian, Tharian; Singal, Gaurav; Sinha, Pawan (Cambridge University Press, 2012-01)
      Are visual face processing mechanisms the same in the left and right cerebral hemispheres? The possibility of such ‘duplicated processing’ seems puzzling in terms of neural resource usage, and we currently lack a precise ...
    • A latitude-dependent analysis of the leptonic hypothesis for the Fermi Bubbles 

      Narayanan, Sruthi A.; Slatyer, Tracy Robyn (Oxford University Press (OUP), 2017-03)
      The Fermi Bubbles are giant Galactic structures observed in both gamma-rays and microwaves. Recent studies have found support for the hypothesis that the gamma-ray and microwave emission can both be understood as arising ...
    • The LatMix Summer Campaign: Submesoscale Stirring in the Upper Ocean 

      Callies, Joern; Ferrari, Raffaele (American Meteorological Society, 2015-08)
      Lateral stirring is a basic oceanographic phenomenon affecting the distribution of physical, chemical, and biological fields. Eddy stirring at scales on the order of 100 km (the mesoscale) is fairly well understood and ...
    • Lattice Boltzmann method for multiscale self-consistent field theory simulations of block copolymers 

      Chen, Hsieh; Kim, YongJoo; Alexander-Katz, Alfredo (American Institute of Physics (AIP), 2013-03)
      A new Lattice Boltzmann (LB) approach is introduced to solve for the block copolymer propagator in polymer field theory. This method bridges two desired properties from different numerical techniques, namely: (i) it is ...
    • Lattice ellipsoidal statistical BGK model for thermal non-equilibrium flows 

      Meng, Jianping; Zhang, Yonghao; Radtke, Gregg A.; Shan, Xiaowen; Hadjiconstantinou, Nicolas (Cambridge University Press, 2013-02)
      A thermal lattice Boltzmann model is constructed on the basis of the ellipsoidal statistical Bhatnagar–Gross–Krook (ES-BGK) collision operator via the Hermite moment representation. The resulting lattice ES-BGK model uses ...