Mercurial > hg > camir-aes2014

diff toolboxes/FullBNT-1.0.7/nethelp3.3/som.htm @ 0:e9a9cd732c1e tip
first hg version after svn
author: wolffd
date: Tue, 10 Feb 2015 15:05:51 +0000
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+<html>
+<head>
+<title>
+Netlab Reference Manual som
+</title>
+</head>
+<body>
+<H1> som
+</H1>
+<h2>
+Purpose
+</h2>
+Creates a Self-Organising Map.
+
+<p><h2>
+Synopsis
+</h2>
+<PRE>
+
+net = som(nin, map_size)
+</PRE>
+
+
+<p><h2>
+Description
+</h2>
+<CODE>net = som(nin, map_size)</CODE> creates a SOM <CODE>net</CODE>
+with input dimension (i.e. data dimension) <CODE>nin</CODE> and map dimensions
+<CODE>map_size</CODE>.  Only two-dimensional maps are currently implemented.
+
+<p>The fields in <CODE>net</CODE> are
+<PRE>
+
+  type = 'som'
+  nin = number of inputs
+  map_dim = dimension of map (constrained to be 2)
+  map_size = grid size: number of nodes in each dimension
+  num_nodes = number of nodes: the product of values in map_size
+  map = map_dim+1 dimensional array containing nodes
+  inode_dist = map of inter-node distances using Manhatten metric
+</PRE>
+
+
+<p>The map contains the node vectors arranged column-wise in the first
+dimension of the array.
+
+<p><h2>
+See Also
+</h2>
+<CODE><a href="kmeans.htm">kmeans</a></CODE>, <CODE><a href="somfwd.htm">somfwd</a></CODE>, <CODE><a href="somtrain.htm">somtrain</a></CODE><hr>
+<b>Pages:</b>
+<a href="index.htm">Index</a>
+<hr>
+<p>Copyright (c) Ian T Nabney (1996-9)
+
+
+</body>
+</html>
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