Name

adams.flow.transformer.WekaTrainTestSetEvaluator

Synopsis

Trains a classifier on an incoming training dataset (from a container) and then evaluates it on the test set (also from a container).
The classifier setup being used in the evaluation is a callable 'Classifier' actor.

Additional information

Flow input/output:
- input: adams.flow.container.WekaTrainTestSetContainer
- output: adams.flow.container.WekaEvaluationContainer

Container information:
- adams.flow.container.WekaTrainTestSetContainer:
   - Train: training set; weka.core.Instances
   - Test: test set; weka.core.Instances
   - Seed: seed value; java.lang.Long
   - FoldNumber: current fold (1-based); java.lang.Integer
   - FoldCount: total number of folds; java.lang.Integer
   - Train original indices: original indices (0-based, train); array of int
   - Test original indices: original indices (0-based, test); array of int
- adams.flow.container.WekaEvaluationContainer:
   - Evaluation: evaluation object; weka.classifiers.Evaluation
   - Model: model object; java.lang.Object
   - Prediction output: prediction output text; java.lang.String
   - Original indices: original indices (0-based); array of int
   - Test data: data used for testing; weka.core.Instances

Options

• loggingLevel
  

  The logging level for outputting errors and debugging output.

  command-line	-logging-level <OFF|SEVERE|WARNING|INFO|CONFIG|FINE|FINER|FINEST>
  default	WARNING
  min-user-mode	Expert

  
  
• name
  

  The name of the actor.

  command-line	-name <java.lang.String>
  default	WekaTrainTestSetEvaluator

  
  
• annotations
  

  The annotations to attach to this actor.

  command-line	-annotation <adams.core.base.BaseAnnotation>
  default

  
  
• skip
  

  If set to true, transformation is skipped and the input token is just forwarded as it is.

  command-line	-skip <boolean>
  default	false

  
  
• stopFlowOnError
  

  If set to true, the flow execution at this level gets stopped in case this actor encounters an error; the error gets propagated; useful for critical actors.

  command-line	-stop-flow-on-error <boolean>
  default	false
  min-user-mode	Expert

  
  
• silent
  

  If enabled, then no errors are output in the console; Note: the enclosing actor handler must have this enabled as well.

  command-line	-silent <boolean>
  default	false
  min-user-mode	Expert

  
  
• output
  

  The class for generating prediction output; if 'Null' is used, then an Evaluation object is forwarded instead of a String.

  command-line	-output <weka.classifiers.evaluation.output.prediction.AbstractOutput>
  default	weka.classifiers.evaluation.output.prediction.Null

  
  
• alwaysUseContainer
  

  If enabled, always outputs an evaluation container.

  command-line	-always-use-container <boolean>
  default	false

  
  
• classifier
  

  The callable classifier actor to train and evaluate on the test data.

  command-line	-classifier <adams.flow.core.CallableActorReference>
  default	WekaClassifierSetup

  
  
• discardPredictions
  

  If enabled, the collection of predictions during evaluation is suppressed, wich will conserve memory.

  command-line	-no-predictions <boolean>
  default	false

  
  
• preferJobRunner
  

  If enabled, tries to offload the processing onto a adams.flow.standalone.JobRunnerInstance.

  command-line	-prefer-jobrunner <boolean>
  default	false