Guest post by Bob Agnew (raagnew@comcast.net) —————- Introduction Marketing optimization consists of assigning offers to prospects in order to maximize total expected profit subject to a few general linear constraints and the requirement that a prospect receives at most one offer. What distinguishes these problems is their sheer size. With millions of prospects, brute force linear solvers are unsuitable. ...

Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).