Document Detail


Generalized hamming networks and applications.
MedLine Citation:
PMID:  15949918     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In this paper the classical Hamming network is generalized in various ways. First, for the Hamming maxnet, a generalized model is proposed, which covers under its umbrella most of the existing versions of the Hamming Maxnet. The network dynamics are time varying while the commonly used ramp function may be replaced by a much more general non-linear function. Also, the weight parameters of the network are time varying. A detailed convergence analysis is provided. A bound on the number of iterations required for convergence is derived and its distribution functions are given for the cases where the initial values of the nodes of the Hamming maxnet stem from the uniform and the peak distributions. Stabilization mechanisms aiming to prevent the node(s) with the maximum initial value diverging to infinity or decaying to zero are described. Simulations demonstrate the advantages of the proposed extension. Also, a rough comparison between the proposed generalized scheme as well as the original Hamming maxnet and its variants is carried out in terms of the time required for convergence, in hardware implementations. Finally, the other two parts of the Hamming network, namely the competitors generating module and the decoding module, are briefly considered in the framework of various applications such as classification/clustering, vector quantization and function optimization.
Authors:
Konstantinos Koutroumbas; Nicholas Kalouptsidis
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neural networks : the official journal of the International Neural Network Society     Volume:  18     ISSN:  0893-6080     ISO Abbreviation:  Neural Netw     Publication Date:  2005 Sep 
Date Detail:
Created Date:  2005-09-09     Completed Date:  2005-11-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8805018     Medline TA:  Neural Netw     Country:  United States    
Other Details:
Languages:  eng     Pagination:  896-913     Citation Subset:  IM    
Affiliation:
Institute for Space Applications and Remote Sensing, National Observatory of Athens, Metaxa and V. Pavlou, Palaia Penteli, 15236, Athens, Greece. koutroum@space.noa.gr
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MeSH Terms
Descriptor/Qualifier:
Algorithms*
Artificial Intelligence
Mathematics
Neural Networks (Computer)*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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