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calculate "max_num_of_trees_in_the_forest"

asked 2014-01-21 08:55:28 -0600

jossyy gravatar image

updated 2014-01-21 09:00:37 -0600

berak gravatar image

Hello, I am using random forest in my code. And I am not sure that how I should calculate "max_num_of_trees_in_the_forest " that is a parameter of CvRTParams() function.

I know the machine shouldnt memorize all of my train datas .

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answered 2014-01-21 18:16:00 -0600

Nghia gravatar image

It's much easier to overfit the data with a larger max_depth than with max_num_of_trees_in_the_forest. In fact, from my experience with random forest it is safe to use a large number of trees eg. in the 30,40,50s. I would plot a graph of "accuracy vs number of trees". You should get a graph that asymptotes off for high number of trees. This should give you an idea of what number to pick.

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ok , thanks your answer...

jossyy gravatar imagejossyy ( 2014-01-22 02:03:47 -0600 )edit

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Asked: 2014-01-21 08:55:28 -0600

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Last updated: Jan 21 '14