Your Navigation Path
Case Base
MiningMart
Case
ModelCaseTelecom
Chain
DataMining

Step: SampleNegExForTraining

Name SampleNegExForTraining
Belongs to Case ModelCaseTelecom
Uses Operator RowSelectionByRandomSampling
Belongs to Chain DataMining
Concepts of resulting Data Model TrainingSample
Has Parameters HowMany
TheInputConcept
TheOutputConcept

M4 Documentation:

The steps needed for training are applied to a subsample of the negative examples and to all positive examples. The subsample is necessary for training in order to reduce the class overweight of the negative examples. This step performs the sampling.