PEventsDataSource

base itemsim

PEventsDataSourceRunner

itemsim

PPreparedData

base

PReplayDataSource

itemrank

PTrainingData

base

Params

ReplayDataSource

PrecisionAtK

MeasureType MeasureType

Prediction

itemrank itemrec itemsim

Preparator

base

PreparatorParams

itemrank itemrec itemsim

PreparedData

base

PreprocessedData

ReplayDataSource

p

EvaluationUnit EvaluatorUnit

params

NCItemBasedAlgorithmModel

predict

FeatureBasedAlgorithm NCItemBasedAlgorithm RandomAlgorithm FeatureBasedAlgorithm ItemBasedAlgorithm NCItemBasedAlgorithm NCItemBasedAlgorithm

prediction

io

prepare

Preparator

preprocess

ReplayDataSource

previousActionCount

Actual

previousOrders

Actual