16 Apr 2014
I recently ran into a problem at work where I had to predict whether an account would churn in the near future given the account’s time series usage in a certain time interval. So this is a binary-valued classification problem (i.e. churn or not churn) with a time series as a predictor. This was not a very straight-forward problem to tackle because it seemed like there two possible strategies to employ.
30 Mar 2014
A large chunk of my time at my last job was devoted to churn analysis and I wanted to use this blog entry to explain how I approached the various problems that it presented. This is not meant to be a very technical post and the reasoning behind this is two-fold