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检索条件"主题词=sparse coding"
2101 条 记 录,以下是2061-2070 订阅
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Some approaches to analogical mapping with structure-sensitive distributed representations
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JOURNAL OF EXPERIMENTAL & THEORETICAL ARTIFICIAL INTELLIGENCE 2004年 第3期16卷 125-144页
作者: Rachkovskij, DA VM Glushkov Cybernet Ctr UA-03680 Kiev Ukraine
This paper presents some techniques for analogical mapping using associative-projective neural networks (APNNs). sparse binary distributed representations of constant high dimensionality are constructed on-the-fly for... 详细信息
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coding distributed representations of natural scenes: a comparison of orthogonal and non-orthogonal models
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NEUROCOMPUTING 2004年 第10期61卷 277-289页
作者: Watters, PA Commonwealth Sci & Ind Res Org Div Math & Informat Sci N Ryde NSW 1670 Australia
Recent non-orthogonal models of simple cells (OF;Nature 381 (1996) 607) are based on the assumption that having desirable statistical properties (e.g., kurtosis) implies physiological plausibility. Orthogonal models w... 详细信息
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A unifying framework for natural image statistics:: spatiotemporal activity bubbles
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NEUROCOMPUTING 2004年 58卷 801-806页
作者: Hyvärinen, A Hurri, J Väyrynen, J Aalto Univ Neural Networks Res Ctr FIN-02150 Espoo Finland Univ Helsinki Helsinki Inst Informat Technol Basic Res Unit Dept Comp Sci Helsinki Finland
Recently, different models of the statistical structure of natural images (and sequences) have been proposed. Maximizing sparseness, or alternatively temporal coherence of linear filter outputs leads to the emergence ... 详细信息
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Independence or non-negativity: Constraints for sensory coding
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International Congress Series 2004年 第C期1269卷 38-41页
作者: Choi, Seungjin Department of Computer Science POSTECH Pohang 790-784 San 31 Hyoja-dong Nam-gu South Korea
This paper addresses two different coding strategies in the framework of linear generative models. One relies on statistical independence between encoding variables and the other imposes non-negativity constraints in ... 详细信息
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A maximum likelihood approach to single-channel source separation
The Journal of Machine Learning Research
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The Journal of Machine Learning Research 2004年 第7-8期4卷
作者: Gil-Jin Jang Te-Won Lee Spoken Language Laboratory Division of Computer Science KAIST Daejon 305-701 South Korea Institute for Neural Computation University of California San Diego La Jolla CA
This paper presents a new technique for achieving blind signal separation when given only a single channel recording. The main concept is based on exploiting a prior sets of time-domain basis functions learned by inde... 详细信息
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sparse image coding with clustering property and its application to face recognition
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PATTERN RECOGNITION 2001年 第9期34卷 1883-1884页
作者: Sun, J Zhuo, Q Ma, CY Wang, WY Tsing Hua Univ Inst Informat Proc Dept Automat Beijing 100084 Peoples R China
Figures/TablesFigures/Tables | ReferencesReferences Article Outline 1. Introduction 2. Learning algorithm of sparse code 3. Experiments and discussions References
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Design parameters of the fan-out phase of sensory systems
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JOURNAL OF COMPUTATIONAL NEUROSCIENCE 2003年 第1期15卷 5-17页
作者: García-Sanchez, M Huerta, R Univ Autonoma Madrid Escuela Tecn Super Informat GNB E-28049 Madrid Spain Univ Calif San Diego Inst Nonlinear Sci La Jolla CA 92093 USA
This paper focuses on the calculation of boundary values for the design parameters in the fan- out phase of the olfactory system of insects. Three main criteria are taken into account to determine the boundaries of th... 详细信息
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Decoding temporal information through slow lateral excitation in the olfactory system of insects
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JOURNAL OF COMPUTATIONAL NEUROSCIENCE 2003年 第2期15卷 271-281页
作者: Nowotny, T Rabinovich, MI Huerta, R Abarbanel, HDI Univ Calif San Diego Inst Nonlinear Sci La Jolla CA 92093 USA Univ Calif San Diego Dept Phys La Jolla CA 93093 USA Univ Calif San Diego Scripps Inst Oceanog Marine Phys Lab La Jolla CA 93093 USA
Sensory information is represented in a spatio-temporal code in the antennal lobe, the first processing stage of the olfactory system of insects. We propose a novel mechanism for decoding this information in the next ... 详细信息
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An alternative approach to infomax and independent component analysis
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NEUROCOMPUTING 2002年 44卷 1089-1097页
作者: Hyvärinen, A Helsinki Univ Technol Neural Networks Res Ctr FIN-02015 Helsinki Finland
Infomax means maximization of information flow in a neural system. A nonlinear version of infomax has been shown to be connected to independent component analysis and the receptive fields of neurons in the visual cort... 详细信息
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Distributed synchrony
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NEUROCOMPUTING 2002年 44卷 715-720页
作者: Zhang, ZH Ballard, DH Univ Rochester Dept Comp Sci Rochester NY 14623 USA
Data implying that neurons can communicate with synchronous volleys are difficult to reconcile with the bulk of single unit recordings which do not show synchrony yet reveal substantial correlations with animal behavi... 详细信息
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