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Generate Weight (Stratification)

Synopsis

This operator distributes the specified weight over all the examples, such that weights sum up equally per label.

Description

The Generate Weight (Stratification) operator divides the weight specified through the total weight parameter among all the examples. While dividing the weight, this operator makes sure that the sum of example weights of all label values is same. This often improves the representativeness of the label values. Please study the attached Example Process for better understanding.

Input

example set input

This input port expects an ExampleSet. It is output of the Retrieve operator in the attached Example Process.

Output

example set output

The examples are assigned weights and the resultant ExampleSet is returned through this port.

original

The ExampleSet that was given as input is passed without changing to the output through this port. This is usually used to reuse the same ExampleSet in further operators or to view the ExampleSet in the Results Workspace.

Parameters

Total weight

This parameter specifies the total weight that should be distributed over all the examples.