topic Re: Gradient boosting tune -to improve misclassification rate in SAS Data Science

Gradient boosting tune -to improve misclassification rate

M23 — Fri, 19 May 2017 05:07:33 GMT

Hi,

I am building GB in SAS eminer with event rate of 3.7% ,after tunning for many iteration model miscllasification rate remain constant no change in the rate,any options/ method to tune and reduce the rate.

Thank you

Re: Gradient boosting tune -to improve misclassification rate

WendyCzika — Fri, 19 May 2017 16:42:13 GMT

You can try using a smaller value for the Leaf Fraction property to possibly improve your model. And if you have more than 20K observations in your training data, you can also try increasing the Node Sample property.

Re: Gradient boosting tune -to improve misclassification rate

M23 — Wed, 24 May 2017 10:23:03 GMT

Thank you Wendy.