som

所属分类:其他
开发工具:matlab
文件大小:8KB
下载次数:15
上传日期:2009-10-19 00:46:21
上 传 者espakizeh
说明:  this folder contains SOM impelmentation

文件列表:
som\demo\ball.m (242, 2009-06-02)
som\demo\cross.m (491, 2009-06-02)
som\demo\disc.m (235, 2009-06-02)
som\demo\niceball.m (84, 2009-06-02)
som\demo\nicecross.m (89, 2009-06-02)
som\demo\nicecube.m (81, 2009-06-02)
som\demo\nicedisc.m (87, 2009-06-02)
som\demo\nicering.m (93, 2009-06-02)
som\demo\nicesquare.m (45, 2009-06-02)
som\demo\plot_nodes.m (1772, 2009-06-02)
som\demo\plot_points.m (300, 2009-06-02)
som\demo\ring.m (271, 2009-06-02)
som\demo\somdemo.m (1494, 2009-06-02)
som\src\closest.m (237, 2009-06-02)
som\src\eucdist.m (115, 2009-06-02)
som\src\index_of_closest.m (174, 2009-06-02)
som\src\mag.m (94, 2009-06-02)
som\src\pickrand.m (306, 2009-06-02)
som\src\randindex.m (310, 2009-06-02)
som\src\scale.m (126, 2009-06-02)
som\src\som.m (1431, 2009-06-02)
som\src\somlearn.m (1059, 2009-06-02)
som\src\update_weights.m (716, 2009-06-02)
som\demo (0, 2009-06-02)
som\src (0, 2009-06-02)
som (0, 2009-06-02)

This directory contains Matlab code implementing a multi-dimensional version of Kohonen's Self-Organizing Map. Like the traditional version, this version can work with a two-dimensional grid, but it also supports mapping to vectors of arbitrary dimensions. To get started, download and unzip the file som.zip from this directory into your Matlab working directory, launch Matlab, and type >> addpath src >> addpath demo >> somdemo(@nicering, 200); This will run a two-dimensional demo using a ring shape as the input data set. Instead of nicering, you can also use the other nice* shape functions. You can run a three-dimensional example, with the interior of a cube as the data set, by typing >> somdemo(@nicecube, 300); or however iterations you want to try. The src directory contains code that you can use in actual applications. Most users will probably just want to use SOM.M, the two-dimensional grid version. SOMLEARN.M supports learning in higher dimensions. Have fun, and contact levys@wlu.edu with any questions.

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