de.lmu.ifi.dbs.elki.evaluation.outlier

Class JudgeOutlierScores

java.lang.Object

de.lmu.ifi.dbs.elki.evaluation.outlier.JudgeOutlierScores

All Implemented Interfaces:

Evaluator, ResultProcessor

public class JudgeOutlierScores
extends Object
implements Evaluator

Compute a Histogram to evaluate a ranking algorithm. The parameter -hist.positive specifies the class label of "positive" hits.

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JudgeOutlierScores.Parameterizer Parameterization class.
class	JudgeOutlierScores.ScoreResult Result object for outlier score judgements.

Field Summary

Fields

Modifier and Type	Field and Description
private static Logging	LOG Logger for debug output.
static OptionID	POSITIVE_CLASS_NAME_ID The distance function to determine the reachability distance between database objects.
private Pattern	positiveClassName Stores the "positive" class.
private ScalingFunction	scaling Scaling function to use
static OptionID	SCALING_ID Parameter to specify a scaling function to use.

Constructor Summary

Constructors

Constructor and Description
JudgeOutlierScores(Pattern positive_class_name, ScalingFunction scaling) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected JudgeOutlierScores.ScoreResult	computeScore(DBIDs ids, DBIDs outlierIds, OutlierResult or) Evaluate a single outlier score result.
void	processNewResult(ResultHierarchy hier, Result result) Process a result.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOG

private static final Logging LOG

Logger for debug output.

POSITIVE_CLASS_NAME_ID

public static final OptionID POSITIVE_CLASS_NAME_ID

The distance function to determine the reachability distance between database objects.

Default value: EuclideanDistanceFunction

Key: -comphist.positive

SCALING_ID

public static final OptionID SCALING_ID

Parameter to specify a scaling function to use.

Key: -comphist.scaling

positiveClassName

private Pattern positiveClassName

Stores the "positive" class.

scaling

private ScalingFunction scaling

Scaling function to use

Constructor Detail

JudgeOutlierScores

public JudgeOutlierScores(Pattern positive_class_name,
                  ScalingFunction scaling)

Constructor.

Parameters:

positive_class_name - Positive class name

scaling - Scaling function

Method Detail

computeScore

protected JudgeOutlierScores.ScoreResult computeScore(DBIDs ids,
                                          DBIDs outlierIds,
                                          OutlierResult or)
                                               throws IllegalStateException

Evaluate a single outlier score result.

Parameters:

ids - Inlier IDs

outlierIds - Outlier IDs

or - Outlier Result to evaluate

Returns:

Outlier score result

Throws:

IllegalStateException

processNewResult

public void processNewResult(ResultHierarchy hier,
                    Result result)

Description copied from interface: ResultProcessor

Process a result.

Specified by:

processNewResult in interface ResultProcessor

Parameters:

hier - The base of the result tree.

result - Newly added result subtree.