de.unibonn.iai.eis.luzzu.assessment

Interface QualityMetric

All Known Subinterfaces:

ComplexQualityMetric

public interface QualityMetric

Author:

jdebattist

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	statsLogger A special-purpose logger, aimed to write statistics about metric value calculations in a file, specified in the configuration of the logging subsystem (log4j)

Method Summary

Methods

Modifier and Type	Method and Description
void	compute(com.hp.hpl.jena.sparql.core.Quad quad) This method should compute the metric.
com.hp.hpl.jena.rdf.model.Resource	getAgentURI() An agent is required to keep provenance track.
String	getDatasetURI()
com.hp.hpl.jena.rdf.model.Resource	getMetricURI()
ProblemList<?>	getQualityProblems()
boolean	isEstimate()
double	metricValue()
void	setDatasetURI(String datasetURI)

Field Detail

statsLogger

static final org.slf4j.Logger statsLogger

A special-purpose logger, aimed to write statistics about metric value calculations in a file, specified in the configuration of the logging subsystem (log4j)

Method Detail

compute

void compute(com.hp.hpl.jena.sparql.core.Quad quad)

This method should compute the metric.

Parameters:

The - Quad passed by the stream processor to the quality metric

metricValue

double metricValue()

Returns:

the value computed by the Quality Metric

getMetricURI

com.hp.hpl.jena.rdf.model.Resource getMetricURI()

Returns:

returns the daQ URI of the Quality Metric

getQualityProblems

ProblemList<?> getQualityProblems()

Returns:

returns a typed ProblemList which will be used to create a "quality report" of the metric.

isEstimate

boolean isEstimate()

Returns:

returns true if the assessed metric returns an estimate result due to its probabilistic assessment technique (e.g. bloom filters)

getAgentURI

com.hp.hpl.jena.rdf.model.Resource getAgentURI()

An agent is required to keep provenance track. We encourage the definition of an agent which can be accessible online, or as part of the metrics vocabulary.

Returns:

returns the Agent URI that assessed the metric's observation

setDatasetURI

void setDatasetURI(String datasetURI)

getDatasetURI

String getDatasetURI()