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ID3 Learning algorithm does not handle unknown outputs #37

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
ID3 (and possibly C4.5) generate a leaf node with Null output if a discrete 
variable is said to have multiple possible values but some of the possible 
values do not have any corresponding output. 

It should be investigated if those algorithms handle this case and implement 
the solution (use the mode?) appropriately.

Original issue reported on code.google.com by cesarso...@gmail.com on 13 Feb 2013 at 2:22

GoogleCodeExporter commented 9 years ago

Original comment by cesarso...@gmail.com on 14 Feb 2015 at 9:28