KDD-Cup 2000: question 1 winner's report
1. THE KDD-CUP QUESTION The training database contained 234,954 sessions, some complete and some clipped. We were asked to build a prediction model to describe which sessions are going to continue and which are about to terminate, and use tMs model to predict the outcomes on a test dataset (where the information on whether the sessions were clipped or not was withheld). The prediction problem was particularly difficult for several reasons, most notably: