https://communities.sas.com/t5/SAS-Data-Science/oversampling-when-non-event-of-interest-is-low/m-p/471145#M7120 <P>I am trying to figure out if i should do any oversampling or under-sampling in data-set where my event of non interest if very small. So i am trying to predict churn of customers. People who churned constitute 80%. the other 20% did not churn. My goal is to score people with churn probabilty (would use that in calculation of lifetime value).&nbsp;</P><P>What should I do? ( I know how to do things in sas code, and I have eg and em as well, so how to do part in software i can do)</P> Mon, 18 Jun 2018 16:14:51 GMT harsh0404 2018-06-18T16:14:51Z https://communities.sas.com/t5/SAS-Data-Science/oversampling-when-non-event-of-interest-is-low/m-p/471145#M7120 <P>I am trying to figure out if i should do any oversampling or under-sampling in data-set where my event of non interest if very small. So i am trying to predict churn of customers. People who churned constitute 80%. the other 20% did not churn. My goal is to score people with churn probabilty (would use that in calculation of lifetime value).&nbsp;</P><P>What should I do? ( I know how to do things in sas code, and I have eg and em as well, so how to do part in software i can do)</P> Mon, 18 Jun 2018 16:14:51 GMT https://communities.sas.com/t5/SAS-Data-Science/oversampling-when-non-event-of-interest-is-low/m-p/471145#M7120 harsh0404 2018-06-18T16:14:51Z https://communities.sas.com/t5/SAS-Data-Science/oversampling-when-non-event-of-interest-is-low/m-p/471380#M7125 <P>20% bad event rate is good enough, no need to oversample .</P> Tue, 19 Jun 2018 14:38:15 GMT https://communities.sas.com/t5/SAS-Data-Science/oversampling-when-non-event-of-interest-is-low/m-p/471380#M7125 Ksharp 2018-06-19T14:38:15Z