Inherited from HasLabelCol
Inherited from HasInputCol
Inherited from DefaultParamsWritable
Inherited from MLWritable
Inherited from PipelineStage
Inherited from Logging
Inherited from Params
Inherited from Serializable
Inherited from Serializable
Inherited from Identifiable
Inherited from AnyRef
Inherited from Any
Estimator is used to select the proper item sample rate to achive desired size of the resulting sample. Takes into consideration the source dataset size and the amount of valid for ranking lists (list with samples of different rank).