Classifier Model Structure

A classifier model also contains compilation data. The Classifier transformation uses the compilation data to measure the similarities between the reference data in the model and the transformation input data. When you compile a classifier model, you create or update the compilation data. When a Classifier transformation compares the input data to the model data, the transformation returns the label values that describe each row of input data.

The Developer tool writes the reference data values, the label values, and the compilation data to a file in the Informatica directory structure. The classifier model object in the Model repository stores the file name. When you save a classifier model, you write the current reference data values and the label values to the file. When you compile the model, you update the compilation data in the file. You can read the file name from the model properties in the Developer tool.