decision tree learning code.htm

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<H1>Decision tree learning code </H1>
<H3>Companion to Chapter 3 of <A 
href="http://www.cs.cmu.edu/~tom/mlbook.html"><I>Machine Learning</I></A> 
textbook. </H3>This is a simple CommonLisp implementation of the ID3 algorithm 
described in Table 3.1 of the textbook. The code also defines the set of 
training examples shown in Table 3.2. Therefore, you can modify this code and 
experiment with it to create variations on the example trace described in 
section 3.4 of the textbook. 
<H3>Code</H3>This code is written in CommonLisp. The beginning of the file 
contains documentation on how to use it. The file also contains the training 
examples. 
<P><A 
href="http://www.cs.cmu.edu/afs/cs/project/theo-11/www/decision-trees.lisp">Get 
the code </A>
<P><I>Visitors from outside CMU are invited to use this material free of charge 
for any educational purpose, provided attribution is given in any lectures or 
publications that make use of this material. </I>
<P><BR><IMG src="Decision tree learning code.files/colorsep.gif"> 
<CENTER><I><A href="mailto:tom.mitchell@cmu.edu">tom.mitchell@cmu.edu</A> | Last 
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