Package weka.knowledgeflow.steps

Class IncrementalClassifierEvaluator

  • All Implemented Interfaces:
    java.io.Serializable, BaseStepExtender, Step
    @KFStep(name="IncrementalClassifierEvaluator",
        category="Evaluation",
        toolTipText="Evaluate the performance of incrementally training classifiers",
        iconPath="weka/gui/knowledgeflow/icons/IncrementalClassifierEvaluator.gif")
public class IncrementalClassifierEvaluator
extends BaseStep
    Step that evaluates incremental classifiers and produces strip chart data
    Version:
    $Revision: $
    Author:
    Mark Hall (mhall{[at]}pentaho{[dot]}com)
    See Also:
    Serialized Form

    • Constructor Detail

      • IncrementalClassifierEvaluator

        public IncrementalClassifierEvaluator()

    • Method Detail

      • stepInit

        public void stepInit()
              throws WekaException
        Initialize the step.
        Throws:
        WekaException - if a problem occurs during initialization

      • getIncomingConnectionTypes

        public java.util.List<java.lang.String> getIncomingConnectionTypes()
        Get a list of incoming connection types that this step can accept. Ideally (and if appropriate), this should take into account the state of the step and any existing incoming connections. E.g. a step might be able to accept one (and only one) incoming batch data connection.
        Returns:
        a list of incoming connections that this step can accept given its current state

      • getOutgoingConnectionTypes

        public java.util.List<java.lang.String> getOutgoingConnectionTypes()
        Get a list of outgoing connection types that this step can produce. Ideally (and if appropriate), this should take into account the state of the step and the incoming connections. E.g. depending on what incoming connection is present, a step might be able to produce a trainingSet output, a testSet output or neither, but not both.
        Returns:
        a list of outgoing connections that this step can produce

      • setStatusFrequency

        public void setStatusFrequency​(int s)
        Set how often progress is reported to the status bar.
        Parameters:
        s - report progress every s instances

      • getStatusFrequency

        public int getStatusFrequency()
        Get how often progress is reported to the status bar.
        Returns:
        after how many instances, progress is reported to the status bar

      • statusFrequencyTipText

        public java.lang.String statusFrequencyTipText()
        Return a tip text string for this property
        Returns:
        a string for the tip text

      • setOutputPerClassInfoRetrievalStats

        public void setOutputPerClassInfoRetrievalStats​(boolean i)
        Set whether to output per-class information retrieval statistics (nominal class only).
        Parameters:
        i - true if info retrieval stats are to be output

      • getOutputPerClassInfoRetrievalStats

        public boolean getOutputPerClassInfoRetrievalStats()
        Get whether per-class information retrieval stats are to be output.
        Returns:
        true if info retrieval stats are to be output

      • outputPerClassInfoRetrievalStatsTipText

        public java.lang.String outputPerClassInfoRetrievalStatsTipText()
        Return a tip text string for this property
        Returns:
        a string for the tip text

      • setChartingEvalWindowSize

        public void setChartingEvalWindowSize​(int windowSize)
        Set whether to compute evaluation for charting over a fixed sized window of the most recent instances (rather than the whole stream).
        Parameters:
        windowSize - the size of the window to use for computing the evaluation metrics used for charting. Setting a value of zero or less specifies that no windowing is to be used.

      • getChartingEvalWindowSize

        public int getChartingEvalWindowSize()
        Get whether to compute evaluation for charting over a fixed sized window of the most recent instances (rather than the whole stream).
        Returns:
        the size of the window to use for computing the evaluation metrics used for charting. Setting a value of zero or less specifies that no windowing is to be used.

      • chartingEvalWindowSizeTipText

        public java.lang.String chartingEvalWindowSizeTipText()
        Return a tip text string for this property
        Returns:
        a string for the tip text