The presentation describes the benefits, and proves by example, how combining prediction methods can improve the accuracy of predictions.
The overview of current usage of these models is very interesting. It seems lots of companies do use these models to improve their business. What I find odd is that there seems to be very little noise on the web about things like these.
Maybe this problem domain is so far removed from the usual work I do that I seldom hear about it.
Anyways, the slides do intrigue me; time permitting, it would be nice to explore some of these ideas and how they relate to WhatMovieNow? Fun stuff.