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This patch adds:
* Gini index and information gain ratio as
DecisionTree split options;
* handling for numeric Attributes (split point
chosen naïvely on the basis of maximum entropy);
* A couple of additional utility functions in base/
* A new dataset (see sources.txt) for testing.
Performance on Iris performs markedly without discretisation.
5 lines
259 B
Plaintext
5 lines
259 B
Plaintext
c45-numeric.csv: www.mgt.ncu.edu.tw/~wabble/School/C45.ppt
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tennis.csv: "Machine Learning", Tom Mitchell, McGraw-Hill, 1997 (http://books.google.co.uk/books?id=xOGAngEACAAJ&dq=machine+learning,+mitchell&hl=en&sa=X&ei=zvpMVPz8IseN7Aa454DYBg&ved=0CFYQ6AEwBw)
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