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darch (version 0.12.0)

fineTuneDArch: Fine tuning function for the deep architecture

Description

The fine tuning function for deep architectures. This function use the function saved in the attribute fineTuneFunction to train the deep architecture.

Usage

fineTuneDArch(darch, dataSet, dataSetValid = NULL, numEpochs = 1,
  isClass = TRUE, stopErr = -Inf, stopClassErr = 101,
  stopValidErr = -Inf, stopValidClassErr = 101, shuffleTrainData = T,
  debugMode = F, ...)

Arguments

darch

A instance of the class '>DArch.

dataSet

'>DataSet containing training and optionally validation and test data.

dataSetValid

'>DataSet to be used for validation.

numEpochs

The number of training iterations

isClass

Indicates whether the training is for a classification net. When TRUE then statistics for classification will be determind. Default is TRUE

stopErr

Stop criteria for the error on the train data. Default is -Inf

stopClassErr

Stop criteria for the classification error on the train data. Default is 101

stopValidErr

Stop criteria for the error on the validation data. Default is -Inf.

stopValidClassErr

Stop criteria for the classification error on the validation data. Default is 101.

shuffleTrainData

Whether to shuffle train data before each epoch.

debugMode

Whether to enable debug mode, internal parameter.

...

Additional parameters for the training function

bootstrap

Whether to use bootstrapping to create validation data.

Value

Trained '>DArch instance.

Details

The function trains the given network darch with the function saved in the attribute fineTuneFunction of the '>DArch-Object. The data and classes for validation and testing are optional. If they are provided the network will be executed with this datasets and statistics will be calculated. This statistics are saved in the stats attribute (see '>Net). Also it is possible to set stop criteria for the training on the error (stopErr, stopValidErr) or the correct classifications (stopClassErr, stopValidClassErr) of the training or validation dataset.

See Also

'>DArch, '>Net, backpropagation, rpropagation, minimizeAutoencoder, minimizeClassifier