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Monday, May 18, 2020 | History

6 edition of Neural computation and self-organizing maps found in the catalog.

Neural computation and self-organizing maps

an introduction

by Helge Ritter

  • 186 Want to read
  • 8 Currently reading

Published by Addison-Wesley in Reading, Mass .
Written in English

    Subjects:
  • Neural networks (Computer science)

  • Edition Notes

    StatementHelge Ritter, Thomas Martinetz, Klaus Schulten ; translated by Daniel Barsky, Marcus Tesch, and Ronald Kates.
    SeriesComputation and neural systems series
    ContributionsMartinetz, Thomas., Schulten, K.
    Classifications
    LC ClassificationsQA76.87 .R58 1991
    The Physical Object
    Pagination306 p. :
    Number of Pages306
    ID Numbers
    Open LibraryOL1550800M
    ISBN 100201554437, 0201554429
    LC Control Number91030541

    The edited book aims to reflect the latest progresses made in different areas of neural computation, including theoretical neural computation, biologically plausible neural modeling, computational cognitive science, artificial neural networks – architectures and learning . Self-Organizing Maps. A self-organizing map (SOM) is a neural-network–based divisive clustering approach (Kohonen, ). Neural networks are analytic techniques modeled after the processes of learning in cognitive systems and the neurologic functions of the brain.

      Self-organizing maps are one very fun concept and very different from the rest of the neural network world. They use the unsupervised learning to create a map or a mask for the input data. They provide an elegant solution for large or difficult to interpret data sets. The Self-Organizing Map algorithm belongs to the field of Artificial Neural Networks and Neural Computation. More broadly it belongs to the field of Computational Intelligence. The Self-Organizing Map is an unsupervised neural network that uses a competitive (winner-take-all) learning strategy.

      Introduction. Self Organizing Maps or Kohenin’s map is a type of artificial neural networks introduced by Teuvo Kohonen in the s. (Paper link). SOM is trained using unsupervised learning, it is a little bit different from other artificial neural networks, SOM doesn’t learn by backpropagation with SGD,it use competitive learning to adjust weights in neurons. Self-Organizing Maps []. Self-organizing maps (SOM), sometimes called Kohonen SOM after their creator, are used with unsupervised are modeled on biological neural networks, where groups of neurons appear to self organize into specific regions with common functionality.


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Neural computation and self-organizing maps by Helge Ritter Download PDF EPUB FB2

Neural Computation and Self-Organizing Maps; An Introduction. Abstract. From the Publisher: This is a comprehensive introduction to neural networks and neural information processing. Self-organizing maps form a branch of unsupervised learning, which is the study of what can be determined about the statistical properties of input data without explicit feedback from a teacher.

The articles are drawn from the journal Neural book consists of five sections.5/5(1). Neural Computation and Self-Organizing Maps - An Introduction. by Helge Ritter, Thomas Martinetz, and Klaus Schulten Addison-Wesley, New York, About the Book: This book is a comprehensive introduction to neural networks and neural information processing.

Neural Computation and Self-Organizing Maps: An Introduction (Computation & Neural Systems Series) [Ritter, Helge, Martinetz, Thomas, Schulten, Klaus] on *FREE* shipping on qualifying offers.

Neural Computation and Self-Organizing Maps: An Cited by: Additional Physical Format: Online version: Ritter, Helge. Neural computation and self-organizing maps. Reading, Mass.: Addison-Wesley, © (OCoLC) This book provides an overview of self-organizing map formation, including recent developments.

Self-organizing maps form a branch of unsupervised learning, which is the study of what can be determined about the statistical properties of input data without explicit feedback from a teacher.

The articles are drawn from the journal Neural book consists of five sections. Since the second edition of this book came out in earlythe number of scientific papers published on the Self-Organizing Map (SOM) has increased from about to some Also, two special workshops dedicated to the SOM have been organized, not to mention numerous SOM sessions in neural network conferences.

In view of this growing interest it was felt desirable to make extensive 4/5(5). Structure and operations. Like most artificial neural networks, SOMs operate in two modes: training and mapping. "Training" builds the map using input examples (a competitive process, also called vector quantization), while "mapping" automatically classifies a new input vector.

The visible part of a self-organizing map is the map space, which consists of components called nodes or neurons. The roots of SOM are in neural computation (see neural networks); it has been used as an abstract model for the formation of ordered maps of brain functions, such as sensory feature maps.

Several variants have been proposed, ranging from dynamic models to Bayesian variants. Amari (, ) proposed a mathematical formulation on the self-organization of synaptic efficacies and neural response fields under the influence of external stimuli.

The dynamics as well as the equilibrium properties of the cortical map were obtained analytically for neurons with binary input-output transfer functions. Kohonen self-organizing maps (SOM) (Kohonen, ) are feed-forward networks that use an unsupervised learning approach through a process called self-organization.A Kohonen network consists of two layers of processing units called an input layer and an output layer.

There are no hidden units. When an input pattern is fed to the network, the units in the output layer compete with each other. Models of topographic maps in the brain --Dynamics and formation of self-organizing maps / Jun Zhang --A unifying objective function for topographic mappings / Geoffrey J.

Goodhill and Terrence J. Sejnowski --Constrained optimization for neural map formation: a unifying framework for weight growth and normalization / Laurenz Wiskott and. The Self-Organizing Map, or Kohonen Map, is one of the most widely used neural network algorithms, with thousands of applications covered in the literature.

It was one of the strong underlying factors in the popularity of neural networks starting in the early 80's. Currently this method has been included in a large number of commercial and public domain software packages.

Self-Organizing Map (SOM) • The Self-Organizing Map was developed by professor Kohonen. The SOM has been proven useful in many applications • One of the most popular neural network models.

It belongs to the category of competitive learning networks. • Based. A self-organizing feature map (Von der Malsburg ; Kohonen ) sorts n real numbers in O(n) time apparently violating the O(n log n) ed analysis shows that the net takes advantage of the uniform distribution of the numbers and, in this case, sorting in O(n) is are, however, an exponentially small fraction of pathological distributions producing O(n 2) sorting time.

Neural Computation (Level 3) % hour closed book examination in May/June Resit (when allowed) - same as the normal assessment, but in August Introduction to Neural Computation (Level 4/M) 80% hour closed book examination in May/June 20% Continuous assessment by mini-project report with deadline in January.

ASU-CSC Neural Networks Prof. Mostafa Gadal-Haqq Self-Organizing Maps Goal: building artificial topographic maps that learn through self-organization in a neurobiologically manner Principle of topographic map formation (Kohonen, ): “The spatial location of an output neuron in a topographic map corresponds to a particular domain or.

An Introduction to Self-Organizing Maps (ii) Cooperation: Similar to “[human] neurons dealing with closely related pieces of information are close together so that they can interact v ia. Self-Organizing neural networks: recent advances and applications The "self-organizing" dynamics of Self-Organizing Maps (SOMs) is a prominent property of the model that is intuitiely very accessible.

of Neural Gas Proceedings of the 2nd international work-conference on The Interplay Between Natural and Artificial Computation, Part I. Self-organization, also called (in the social sciences) spontaneous order, is a process where some form of overall order arises from local interactions between parts of an initially disordered process can be spontaneous when sufficient energy is available, not needing control by any external agent.

It is often triggered by seemingly random fluctuations, amplified by positive feedback. Self-organizing Maps for Unsupervised Data Analysis ____-____ In a seminal paper, Luttrell (chapter 13) used Bayesian methods to relate self-organizing map formation to the training of probabilistic auto- encoders.

This insight led to the formulation of a cost function from which Kohonen's original self-organizing map approach could be derived.Introduction To The Theory Of Neural Computation Book PDF Available. The Introduction t o t he Theory of Neural Computation by Hertz, K rogh and Palmer This gives self-organizing feature maps.

[PDF Download] Self-Organizing Map Formation: Foundations of Neural Computation (Computational.