Preordained Specialization
After-the-Fact Specialization
General Regression Gating
A gating method, as defined in this text, refers to an overseer that uses one or more gate variable s to weight the opinions of two or more models in order to obtain an opinion superior to what could be obtained from a single model. These models may be numeric predictors or classifiers. What distinguishes the techniques of this chapter from the model combination methods described in prior chapters is that a gated combiner requires the use of a dedicated variable or variables ...