Biology – Quantitative Biology – Quantitative Methods
Scientific paper
2008-09-27
Mathematical and Computer Modelling vol. 45 p. 34 (2007)
Biology
Quantitative Biology
Quantitative Methods
28 pages, many figures
Scientific paper
We discuss the property of a.e. and in mean convergence of the Kohonen algorithm considered as a stochastic process. The various conditions ensuring the a.e. convergence are described and the connection with the rate decay of the learning parameter is analyzed. The rate of convergence is discussed for different choices of learning parameters. We proof rigorously that the rate of decay of the learning parameter which is most used in the applications is a sufficient condition for a.e. convergence and we check it numerically. The aim of the paper is also to clarify the state of the art on the convergence property of the algorithm in view of the growing number of applications of the Kohonen neural networks. We apply our theorem and considerations to the case of genetic classification which is a rapidly developing field.
Bianchi Daniela
Calogero Raffaele
Tirozzi Brunello
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