@Test
public void shouldCumulateHits() throws Exception {
IndexTestDouble index =
new IndexTestDouble().resultFor("2012", "predicate", 1).resultFor("2010", "predicate", 1);
AnnotationAlgorithm majorityHitWeighted =
new WeightedFrequencyCoverageAndSpecificity(
emptyTypes(), index, new OnlyValue(new IndexFields("dbpedia")), new Constant());
List<CandidateProperty> results =
majorityHitWeighted.annotate(
new ContextualizedValues("any", new String[] {"2012", "2010"}));
assertThat(results.get(0).score(), equalTo(0.5142717790222688));
}
@Test
public void shouldNotOrderWithoutConsideringTheWeightOfPredicates() throws Exception {
Directory directory = buildIndex();
ContextualizedEvidence index =
new ContextualizedEvidence(directory, new ConstantSimilarity(), new IndexFields("dbpedia"));
AnnotationAlgorithm majorityHitWeighted =
new WeightedFrequencyCoverageAndSpecificity(
emptyTypes(), index, new OnlyValue(new IndexFields("dbpedia")), new Constant());
List<CandidateProperty> results =
majorityHitWeighted.annotate(new ContextualizedValues("context", new String[] {"value"}));
assertThat(results.get(0).score(), equalTo(results.get(1).score()));
}
@Test
public void shouldConsiderCoverageOfThePredicatesOverValues() throws Exception {
IndexTestDouble index =
new IndexTestDouble()
.resultFor("2012", "lowCoveragePredicate", 2)
.resultFor("2010", "highCoveragePredicate", 1)
.resultFor("2012", "highCoveragePredicate", 1);
AnnotationAlgorithm algorithm =
new WeightedFrequencyCoverageAndSpecificity(
emptyTypes(), index, new OnlyValue(new IndexFields("dbpedia")), new Constant());
List<CandidateProperty> results =
algorithm.annotate(new ContextualizedValues("context", new String[] {"2012", "2010"}));
assertThat(results.get(0).label(), equalTo("highCoveragePredicate"));
}
@Test
public void shouldOrderConsideringCompleteContext() throws Exception {
Directory directory = buildIndex();
IndexFields fields = new IndexFields("dbpedia");
ContextualizedEvidence index =
new ContextualizedEvidence(directory, new ConstantSimilarity(), fields);
AnnotationAlgorithm majorityHitWeighted =
new WeightedFrequencyCoverageAndSpecificity(
emptyTypes(),
index,
new FullyContextualizedValue(fields),
new PropertyContextSpecificity(index, new IndexFields("dbpedia")));
List<CandidateProperty> results =
majorityHitWeighted.annotate(new ContextualizedValues("context", new String[] {"value"}));
assertThat(results.get(0).score(), greaterThan(results.get(1).score()));
}