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检索条件"主题词=sparse coding"
2101 条 记 录,以下是2051-2060 订阅
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sparse spectrotemporal coding of sounds
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EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING 2003年 第7期2003卷 659-667页
作者: Klein, DJ König, P Körding, KP Univ Zurich Inst Neuroinformat CH-8057 Zurich Switzerland ETH CH-8057 Zurich Switzerland UCL Inst Neurol London WC1N 3BG England
Recent studies of biological auditory processing have revealed that sophisticated spectrotemporal analyses are performed by central auditory systems of various animals. The analysis is typically well matched with the ... 详细信息
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Imaging input and output of neocortical networks in vivo
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PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 2005年 第39期102卷 14063-14068页
作者: Kerr, JND Greenberg, D Helmchen, F Max Planck Inst Med Res Dept Cell Physiol D-69120 Heidelberg Germany
Neural activity manifests itself as complex spatiotemporal activation patterns in cell populations. Even for local neural circuits, a comprehensive description of network activity has been impossible so far. Here we d... 详细信息
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sparse coding of natural contours
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NEUROCOMPUTING 2002年 44卷 459-466页
作者: Hoyer, PO Hyvärinen, A Helsinki Univ Technol Neural Networks Res Ctr FIN-02015 Helsinki Finland
An important approach in visual neuroscience considers how the function of the early visual system relates to the statistics of its natural input. Previous work has shown how the classical receptive fields and the org... 详细信息
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Selectivity and sparseness in the responses of striate complex cells
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VISION RESEARCH 2005年 第1期45卷 57-73页
作者: Lehky, SR Sejnowski, TJ Desimone, R RIKEN Brain Sci Inst Cognit Brain Mapping Lab Wako Saitama 3510198 Japan Salk Inst Biol Studies Howard Hughes Med Inst La Jolla CA 92037 USA Univ Calif San Diego Dept Biol La Jolla CA 92037 USA NIMH Neuropsychol Lab Bethesda MD 20892 USA
Probability distributions of macaque complex cell responses to a large set of images were determined. Measures of selectivity were based on the overall shape of the response probability distribution, as quantified by ... 详细信息
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sparse coding for layered neural networks
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PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 2002年 第3-4期310卷 532-546页
作者: Katayama, K Sakata, Y Horiguchi, T Tohoku Univ Dept Math & Comp Sci GSIS Sendai Miyagi 9808579 Japan
We investigate storage capacity of two types of fully connected layered neural networks with sparse coding when binary patterns are embedded into the networks by a Hebbian learning rule. One of them is a layered netwo... 详细信息
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A Bilinear Model for sparse coding  02
A Bilinear Model for Sparse Coding
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Annual Conference on Neural Information Processing Systems
作者: David B. Grimes Rajesh P. N. Rao Department of Computer Science and Engineering University of Washington Seattle WA 98195-2350 U.S.A.
Recent algorithms for sparse coding and independent component analysis (ICA) have demonstrated how localized features can be learned from natural images. However, these approaches do not take image transformations int... 详细信息
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The problem of sparse image coding
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JOURNAL OF MATHEMATICAL IMAGING AND VISION 2002年 第2期17卷 89-108页
作者: Pece, AEC Univ Copenhagen Inst Comp Sci DK-2100 Copenhagen Denmark
Linear expansions of images find many applications in image processing and computer vision. Over-complete expansions are often desirable, as they are better models of the image-generation process. Such expansions lead... 详细信息
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Mixed states on neural network with structural learning
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NEURAL NETWORKS 2004年 第1期17卷 103-112页
作者: Kimoto, T Okada, M Oita Natl Coll Technol Oita 8700152 Japan RIKEN Brain Sci Inst Wako Saitama 3510198 Japan ERATO Kawato Dynam Brain Project Kyoto 6190288 Japan
We investigated the properties of mixed states in a sparsely encoded associative memory model with a structural learning method. When mixed states are made of s memory patterns, s types of mixed states, which become e... 详细信息
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A single spike model of predictive coding
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NEUROCOMPUTING 2004年 58卷 165-171页
作者: Zhang, ZH Ballard, DH Univ Rochester Dept Comp Sci Rochester NY 14627 USA
Current models of cortical computation are based on analog quantities instead of single spikes. This paper extends the predictive coding model (Nature Neurosci. 2(1) (1999) 79) to the level of neural signaling. Neuron... 详细信息
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Unsupervised clustering with spiking neurons by sparse temporal coding and multilayer RBF networks
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IEEE TRANSACTIONS ON NEURAL NETWORKS 2002年 第2期13卷 426-435页
作者: Bohte, SM La Poutré, H Kok, JN Netherlands Ctr Comp Sci & Math Amsterdam Netherlands Leiden Univ Leiden Inst Adv Comp Sci Leiden Netherlands
We demonstrate that spiking neural networks encoding information in the timing of single spikes are capable of computing and learning clusters from realistic data. We show how a spiking neural network based on spike-t... 详细信息
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