org.aksw.limes.core.measures.measure

Class MeasureProcessor

java.lang.Object

org.aksw.limes.core.measures.measure.MeasureProcessor

public class MeasureProcessor
extends Object

Author:

Axel-C. Ngonga Ngomo (ngonga@informatik.uni-leipzig.de)

Constructor Summary

Constructors

Constructor and Description
MeasureProcessor()

Method Summary

Modifier and Type	Method and Description
static double	getCosts(String measureExpression, double mappingSize) Returns the approximation of the runtime for a certain expression.
static List<String>	getMeasures(String expression) Computes a list that contains all measures used in a given expression.
static double	getSimilarity(Instance sourceInstance, Instance targetInstance, String expression, double threshold, String sourceVar, String targetVar) Returns similarity between two instances given a metric expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

MeasureProcessor

public MeasureProcessor()

Method Detail

getMeasures

public static List<String> getMeasures(String expression)

Computes a list that contains all measures used in a given expression.

Parameters:

expression, - The input metric expression

Returns:

List of all measures included in the input expression

getSimilarity

public static double getSimilarity(Instance sourceInstance,
                                   Instance targetInstance,
                                   String expression,
                                   double threshold,
                                   String sourceVar,
                                   String targetVar)

Returns similarity between two instances given a metric expression.

Parameters:

sourceInstance, - the source instance

targetInstance, - the target instance

expression, - the metric expression

threshold, - the threshold

sourceVar, - the source variable

targetVar, - the target variable

Returns:

the similarity of sourceInstance and targetInstance

getCosts

public static double getCosts(String measureExpression,
                              double mappingSize)

Returns the approximation of the runtime for a certain expression.

Parameters:

measureExpression, - The input metric expression

mappingSize, - The size of the mapping returned by the metric expression

Returns:

Runtime approximation of the measure expression