Data Mining: Know It All

Chapter 9. Improving the Model

This chapter looks at improving a model, which presupposes that at least a model exists. However, just because a model exists doesn't mean that it has no problems, or that it is the best or most appropriate model that the data permits. This chapter looks at the process of turning the initially created model into one that better fits the data and the business problem. Although most of the processes apply as much to improving an explanatory model as to improving a classificatory model, most of the issues here are addressed as if the model to be improved is classificatory—except, of course, where the issues discussed are specific to one type of model or the other.

The process of improving a model can, for discussion ...