Package moa.tasks

Class EvaluatePrequentialDelayed

  • All Implemented Interfaces:
    Configurable, Serializable, CapabilitiesHandler, MOAObject, OptionHandler, Task

    public class EvaluatePrequentialDelayed
    extends ClassificationMainTask
    Task for evaluating a classifier on a delayed stream by testing and only training with the example after k other examples (delayed labeling).

    See details in:
    Heitor Murilo Gomes, Albert Bifet, Jesse Read, Jean Paul Barddal, Fabricio Enembreck, Bernhard Pfharinger, Geoff Holmes, Talel Abdessalem. Adaptive random forests for evolving data stream classification. In Machine Learning, DOI: 10.1007/s10994-017-5642-8, Springer, 2017.


    Version:
    $Revision: 1 $
    Author:
    Heitor Murilo Gomes (heitor dot gomes at telecom-paristech dot fr), Albert Bifet (abifet at cs dot waikato dot ac dot nz)
    See Also:
    Serialized Form
    • Field Detail

      • delayLengthOption

        public IntOption delayLengthOption
      • initialWindowSizeOption

        public IntOption initialWindowSizeOption
      • trainOnInitialWindowOption

        public FlagOption trainOnInitialWindowOption
      • trainInBatches

        public FlagOption trainInBatches
      • instanceLimitOption

        public IntOption instanceLimitOption
      • timeLimitOption

        public IntOption timeLimitOption
      • sampleFrequencyOption

        public IntOption sampleFrequencyOption
      • memCheckFrequencyOption

        public IntOption memCheckFrequencyOption
      • dumpFileOption

        public FileOption dumpFileOption
      • outputPredictionFileOption

        public FileOption outputPredictionFileOption
    • Constructor Detail

      • EvaluatePrequentialDelayed

        public EvaluatePrequentialDelayed()
    • Method Detail

      • getTaskResultType

        public Class<?> getTaskResultType()
        Description copied from interface: Task
        Gets the result type of this task. Tasks can return LearningCurve, LearningEvaluation, Classifier, String, Instances..
        Returns:
        a class object of the result of this task
      • doMainTask

        protected Object doMainTask​(TaskMonitor monitor,
                                    ObjectRepository repository)
        Description copied from class: MainTask
        This method performs this task. AbstractTask implements doTask, that uses doTaskImpl. MainTask implements doTaskImpl using doMainTask so its extensions only need to implement doMainTask.
        Specified by:
        doMainTask in class MainTask
        Parameters:
        monitor - the TaskMonitor to use
        repository - the ObjectRepository to use
        Returns:
        an object with the result of this task