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Ross Quinlan
John
Ross Quinlan is a computer science researcher,Received his BSC
degree in Physics and Computing from the University of Sydney in 1965.
·
ID3(Iterative
Dichotomiser 3 )
§ Used to generate decision trees.
§ Uses the Hunt’s algorithm with information gain criterion and
gain ratio (no discretization, no missing values)
· C4.5(Expansion of ID3)
§ Accepts both continuous and discrete features
§ Handles incomplete data points and continuous attributes
§ Performs tree post-pruning (i.e. solves over-fitting problem by
bottom-up technique)
· C5.
o
is the current commercial successor of C4.5.
o
C5.0, the most recent Quinlan iteration
o
Claims to be much faster than
C4.5
o
Also more memory efficient
o
Supports ensemble models!
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