Package de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.metric.resultsSimilarity

Class MatcherSimilarity

java.lang.Object

de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.metric.resultsSimilarity.MatcherSimilarity

public class MatcherSimilarity
extends Object

Resulting object of the MatcherSimilarityMetric calculation.

Author:

Jan Portisch

Field Summary

Fields

Modifier and Type	Field	Description
private HashMap<ExecutionResultTuple,Double>	matcherSimilaritySet	Data structure holding the matcher similarity result.

Constructor Summary

Constructors

Constructor	Description
MatcherSimilarity()	Constructor

Method Summary

Modifier and Type	Method	Description
(package private) void	add(ExecutionResult executionResult_1, ExecutionResult executionResult_2, double similarity)
Map<ExecutionResult,Point2D.Double>	getCoordinates()	Get coordinates for visualizing the matcher distances in a 2D space.
ArrayList<ExecutionResult>	getExecutionResultsAsList()	Obtain all Execution results that are used in the matcherSimilaritySet as ArrayList.
double	getMatcherSimilarity(ExecutionResult executionResult_1, ExecutionResult executionResult_2)	Returns the matcher similarity between the two execution results.
HashMap<ExecutionResultTuple,Double>	getMatcherSimilaritySet()
double	getMedianSimiarity()	Get the median similarity.
double	getMedianSimilariyWithoutSelfSimilarity()	Get the median similarity ignoring self-comparisons (i.e.
static double	median(List<Double> valueList)	Given a list of double values, obtain the median value.
private static double[]	shift(double[] array)
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

matcherSimilaritySet

private HashMap<ExecutionResultTuple,Double> matcherSimilaritySet

Data structure holding the matcher similarity result.

Constructor Details

MatcherSimilarity

public MatcherSimilarity()

Constructor

Method Details

add

void add(ExecutionResult executionResult_1,
 ExecutionResult executionResult_2,
 double similarity)

getMatcherSimilarity

public double getMatcherSimilarity(ExecutionResult executionResult_1,
 ExecutionResult executionResult_2)

Returns the matcher similarity between the two execution results.

Parameters:

executionResult_1 - The first execution results.

executionResult_2 - The second execution result.

Returns:

Similarity as double.

getMatcherSimilaritySet

public HashMap<ExecutionResultTuple,Double> getMatcherSimilaritySet()

getExecutionResultsAsList

public ArrayList<ExecutionResult> getExecutionResultsAsList()

Obtain all Execution results that are used in the matcherSimilaritySet as ArrayList.

Returns:

ArrayList with all execution results.

getMedianSimiarity

public double getMedianSimiarity()

Get the median similarity. Note that the median of the whole matrix is calculated including self-comparisons (matrix diagonal) such as sim(LogMap, Logmap).

Returns:

Median as double.

getMedianSimilariyWithoutSelfSimilarity

public double getMedianSimilariyWithoutSelfSimilarity()

Get the median similarity ignoring self-comparisons (i.e. the similarity betwen two matchers that are equal such as sim(LogMap, Logmap).

Returns:

Median as double.

median

public static double median(List<Double> valueList)

Given a list of double values, obtain the median value.

Parameters:

valueList - The list whose median shall be determined.

Returns:

Median value as double.

toString

public String toString()

Overrides:

toString in class Object

getCoordinates

public Map<ExecutionResult,Point2D.Double> getCoordinates()

Get coordinates for visualizing the matcher distances in a 2D space. It uses multidimensional scaling for converting the distances to coordinates. This is based on OM-Poster: Is my ontology matching system similar to yours? - Ernesto Jimenez-Ruiz, Bernardo Cuenca Grau, Ian Horrocks.

Returns:

a map which maps an execution result to a coordinate.

See Also:

• MDSJ Library from University Konstanz

shift

private static double[] shift(double[] array)