1. Knowledge-poor --Web-log mining Association rule based predictive model ABC D Left Hand Side Right Hand A B CF Side ABE AB C B. C B. CD.G B CD G C D 2 Current observations Window of prediction A B C Size=m 1 Extract rules 2 Select rules 2021/1/262021/1/26 3 1. Knowledge-poor -- Web-log mining Current Observations Window of Prediction A B C Size=m A,B,C,D A,B,C,F A,B,E B,C B,C,D,G C, D Left Hand Side Right Hand Side A,B C B,C,D G Association Rule based Predictive Model ? 1 2 1 Extract rules 2 Select rules