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Neuroinformatics and Neurocomputers, 1992., RNNS/IEEE Symposium on

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  • RNNS/IEEE Symposium on Neuroinformatics and Neurocomputers (Cat. NO.92TH0483-8)

    Publication Year: 1992
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    Freely Available from IEEE
  • Optoelectronic neuroprocessor based on holographic disk memory

    Publication Year: 1992, Page(s):164 - 169 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    Proposes an optoelectronic neuroprocessor using 1D hologram technology with a serial-parallel information processing method. The neuron-like elements of the device are implemented by means of optoelectronics and have no electrical interconnections. Interneuronal connections are set by recording on the holographic disk an array of 1D microholograms formed by the reference beam and a linear multicha... View full abstract»

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  • Three-dimensional integral optic threshold elements

    Publication Year: 1992, Page(s):161 - 163 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    A novel 3D optical threshold element and an optical neural network computer (ONNC) with a layer-module architecture are proposed. It is demonstrated that the ONNC may be implemented on a single chip with high volume density by placing the neural network on different planes and by using a third dimension for forming the synaptic electrooptic connection system. Such elements can be programmed by mas... View full abstract»

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  • Principles of optical implementation of time-domain neural networks based on time-delayed four-wave mixing

    Publication Year: 1992, Page(s):157 - 160 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB)

    Properties of time-delayed four-wave mixing (TDFWM) are theoretically investigated for the purpose of implementing a neural network model in optics. The analysis is carried out on the assumption of low-intensity excitation pulses with spectral widths which significantly exceed the characteristic width of an inhomogeneously broadened line. In particular, the temporal properties of TDFWM can be used... View full abstract»

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  • Adaptive neural network algorithm for solving linear algebra problems

    Publication Year: 1992, Page(s):128 - 138 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    Discusses the construction of adaptive neural network algorithms for solving systems of linear equations and linear inequalities. The performance and efficiency are evaluated for parallel algorithms. An assessment is made of the gain in terms of throughput when neural network algorithms are used in terms of `natural' implementation. The speed performance of an algorithm is proportional to the numb... View full abstract»

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  • Visual shape analysis by wavelets

    Publication Year: 1992, Page(s):289 - 298 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    The complexity analysis shows that the problem of visual recognition is an intractable problem, as is the training of neural networks for this purpose. The authors propose a representation scheme which greatly simplifies recognition. The approach relies on wavelet analysis, a recently developed tool for local space-frequency analysis on a broad class of functions. Based on two assumptions, that vi... View full abstract»

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  • Spatial information processing in higher area of visual system

    Publication Year: 1992, Page(s):641 - 646 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    A study of receptive fields of neurons of prestriate-cortex cats has shown that they consist of different zones from one to nine. It was also shown that the orientation and spatial-frequency characteristics of different neurons depend on the number of simultaneously stimulated zones, and the properties of different zones depend on the characteristics of different elements in the striate cortex. Ev... View full abstract»

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  • A bibliographic data base `Neural Networks and Neurocomputers'

    Publication Year: 1992, Page(s):1125 - 1126 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (88 KB)

    A neural networks and neurocomputers database at Moscow University containing about 7000 references is ready for use. The earliest works date from the 1940s and the latest ones reflect the present status of investigations. The database includes publications on mathematical and computer simulation studies of properties of neural network schemes, biological investigations explicitly using connection... View full abstract»

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  • The spatio-temporal encoding of the information by the neurons of the frog's `visual brain' and model representations of the multiparameters analysis of the features of the visual stimuli by the neural networks

    Publication Year: 1992, Page(s):660 - 671 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    Information encoding and processing in different parts of the frog visual cortex have been investigated. Experiments were performed on frogs (Rana ridibunda) immobilized with tubocurarine (after prior local injections of novocaine). Impulse activity was recorded extracellularly from retinal ganglion cells and from neurons of mesencephalon (tectum and tegmentum), of diencephalon (nucleus posterior ... View full abstract»

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  • On finite automata principles of analysis and synthesis of neural-like structures

    Publication Year: 1992, Page(s):1201 - 1211 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    An approach to the interpretation of spin system behavior is presented. In this framework, it is possible to describe system dynamics using the theory of finite automata. The authors consider problems relating to experiment planning theory applied to the construction of finite automata, the interpretation of the Hopfield network as a finite automaton, and the simulation of finite automaton behavio... View full abstract»

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  • Identified synapses in the snail's brain

    Publication Year: 1992, Page(s):719 - 728 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    The structure of neural connections and transmission mechanisms is determined, and the plasticity of identified synapses is studied. Intracellular recording combined with the double marking method is used. The depression and facilitation of unitary EPSP (excitatory post-synaptic potentials) are studied. The depression of monosynaptic unitary EPSP is show to satisfy all criteria for habituation. It... View full abstract»

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  • On a possible creative neurocomputer system

    Publication Year: 1992
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    Summary form only given. It is suggested that one way to develop neural net computer systems may be through the use of the computer as a generator but not as a transformer of information. The core of these hypothetical computer systems must consist of two functional modules: a knowledge generator, based on the physical dissipative process, and a transformer of information into a structural form si... View full abstract»

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  • Transmission of synaptic signals along bistable dendrites

    Publication Year: 1992, Page(s):399 - 410 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    The amplitude and duration of an EPSP in the bistable dendrite has a strong nonlinear dependence on the subsynaptic conductance; at certain conductance values the EPSP switches on the stable depolarization of the dendrite. The stable depolarization remains after the excitatory currents decay. The long-lasting N-methyl-D-aspartatic synaptic currents with negative subsynaptic resistance are more eff... View full abstract»

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  • Neuron ensemble as a unit of information handling

    Publication Year: 1992, Page(s):1163 - 1165 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (128 KB)

    Research has been carried out on the principles of cellular arrangement of the central neural structures by means of simultaneous multimicroelectrode registration on the background and evoked impulse activity of nerve cells at different levels of evolutionary development, and studies of the dynamics of this arrangement have been made in different functional states. This research made it possible t... View full abstract»

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  • Digital neurochip for fully-connected neural network

    Publication Year: 1992, Page(s):572 - 579 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    The author presents the design of a digital neurochip architecture. A fully connected neural network with the error backpropagation training method is assumed. The training and the working time of the neural network, when emulated on a conventional computer, shows a power-of-two dependence on the number of neurons. The neurochip in combination with the computer provides a linear dependence View full abstract»

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  • The new nondeterministic model of sigmoidal neural network

    Publication Year: 1992, Page(s):836 - 845 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    A new way to derive an artificial neural network of sigmoidal neurons from a nondeterministic model of logic circuits is presented. It can be used to classify the behavior of biological neural nets and of methods for synthesising fuzzy integrated-circuit chips. Some results of a computer simulation of a sigmoidal network from logic elements are examined. The most promising feature of the proposed ... View full abstract»

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  • The stability of the periodical activity of respiratory neuron network without periodic inputs

    Publication Year: 1992, Page(s):708 - 718 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    The compartment model of a respiratory neuron network (RNN) is discussed. The periodic or quasi-periodic activity of an RNN is considered. The stability of periodic orbits is examined, and a simulation experiment is described View full abstract»

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  • Internal conflicts in neural networks

    Publication Year: 1992, Page(s):219 - 225 vol.1
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    Hierarchical neural networks consisting of small expert networks are considered. Fast parallel learning algorithms are proposed. An implementation example is presented, and two test tasks are considered, one pertaining to the electron of the US president and the other to recognition of succession shift View full abstract»

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  • Methods for modeling the first layers of the retina

    Publication Year: 1992, Page(s):179 - 186 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    Recently, analog preprocessing circuits modeling the first layers of the primate retina (low level vision) have been described. The author compares the operation of these circuits with traditional image preprocessing methods. Specifically, he investigates properties and limitations of a machine vision based edge detection method (inhomogeneous anisotropic diffusion) and makes a comparison with sil... View full abstract»

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  • Some problems of mathematical theory of neural nets

    Publication Year: 1992, Page(s):438 - 448 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    The formal mathematical theory of neural nets is considered. A novel approach to neural net research is proposed, based on the representation of a trained neural net as a set of five mathematical objects: two Boolean rings and three functions, determined on these rings. This approach made it possible to obtain some new results on the capacity of the Hopfield-Hebb net. Using this approach, some res... View full abstract»

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  • Structure optimization of multilayer neural networks with cross connections

    Publication Year: 1992, Page(s):509 - 520 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    Problems of choosing the structure (the number of layers and the number of neurons in a layer) for multilayer neural networks with cross connections and consisting of neurons with two lattices are considered for the solution of pattern recognition problems. Consideration is given to multilayer neural networks with complete cross connections where the attribute set of each layer consists of initial... View full abstract»

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  • The network of dynamic digital neuronlike processors to solve incorrect problems of the linear programming

    Publication Year: 1992, Page(s):43 - 52 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    Presents one possible realization of a neural network that is used in the construction of neurocomputer systems intended to operate under a large number of parameters, real-time, and uncertainty of the environment. Attention is given to the Lagrange model for incorrect problems of linear programming, a neural network for linear programming incorrect-problem, and a program model of such a neural ne... View full abstract»

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  • Mathematical neuronetwork model for clonal hypothesis

    Publication Year: 1992, Page(s):1247 - 1258 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    Grounds and principles for the construction of a clonal neural network model are considered. The structure of the clonal network is then considered. Algorithms are presented which form the basis for the construction of a neuroelement model for differentiating and integrating networks of the clonal neuronetwork model View full abstract»

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  • Spatial reconstruction of the frog cerebellar network on the basis of electron microscopy of ultra-thin slices

    Publication Year: 1992, Page(s):64 - 70 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    The authors have been working on the problem of spatial reconstruction of interneuronal contacts and, in particular, the synaptic contacts formed by climbing fibers on dendritic spines of Purkinje cells. Rana temporaria cerebellar cortex served as the experimental material. Preparations were studied using an electron microscope and photographed at ×8000 and ×15000 magnification factors... View full abstract»

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  • On the problem of self-organization in neurocomputing

    Publication Year: 1992, Page(s):672 - 678 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    The results are presented of a theoretical analysis of self-organizing (SO) natural objects with such common features as learning, memorizing (acquisition), and recognition. The knowledge of the mechanisms of learning and of the genesis of SO objects had made it possible to formulate general principles for creating artificial counterparts capable of learning and recognition. Some of these principl... View full abstract»

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