1 We show that a very simple variation on a standard algorithm, Generalized Iterative Scaling (GIS) (Darroch and Ratcliff, 1972), solves this problem.
as we will show, while GIS uses an update rule of the form our modified algorithm uses a rule of the form (3) Note that there are two different styles of model that one can use, especially in the common case that there are two outputs (values for y.)