Examples with Similarity org.apache.lucene.search.similarities.Similarity used on opensource projects

Example 6 with Similarity

use of org.apache.lucene.search.similarities.Similarity in project lucene-solr by apache.

the class TestDFRSimilarityFactory method testParameters.

/** dfr with parametrized normalization */
public void testParameters() throws Exception {
    Similarity sim = getSimilarity("text_params");
    assertEquals(DFRSimilarity.class, sim.getClass());
    DFRSimilarity dfr = (DFRSimilarity) sim;
    assertEquals(BasicModelIF.class, dfr.getBasicModel().getClass());
    assertEquals(AfterEffectB.class, dfr.getAfterEffect().getClass());
    assertEquals(NormalizationH3.class, dfr.getNormalization().getClass());
    NormalizationH3 norm = (NormalizationH3) dfr.getNormalization();
    assertEquals(900f, norm.getMu(), 0.01f);
}

Example 7 with Similarity

use of org.apache.lucene.search.similarities.Similarity in project lucene-solr by apache.

the class TestIBSimilarityFactory method testParameters.

/** ll/ttf/h3 with parametrized normalization */
public void testParameters() throws Exception {
    Similarity sim = getSimilarity("text_params");
    assertEquals(IBSimilarity.class, sim.getClass());
    IBSimilarity ib = (IBSimilarity) sim;
    assertEquals(DistributionLL.class, ib.getDistribution().getClass());
    assertEquals(LambdaTTF.class, ib.getLambda().getClass());
    assertEquals(NormalizationH3.class, ib.getNormalization().getClass());
    NormalizationH3 norm = (NormalizationH3) ib.getNormalization();
    assertEquals(900f, norm.getMu(), 0.01f);
}

Example 8 with Similarity

use of org.apache.lucene.search.similarities.Similarity in project lucene-solr by apache.

the class TestLMJelinekMercerSimilarityFactory method testParameters.

/** jelinek-mercer with parameters */
public void testParameters() throws Exception {
    Similarity sim = getSimilarity("text_params");
    assertEquals(LMJelinekMercerSimilarity.class, sim.getClass());
    LMJelinekMercerSimilarity lm = (LMJelinekMercerSimilarity) sim;
    assertEquals(0.4f, lm.getLambda(), 0.01f);
}

Example 9 with Similarity

use of org.apache.lucene.search.similarities.Similarity in project lucene-solr by apache.

the class TestPerFieldSimilarity method testFactoryDynamic.

/** ... and for a dynamic field */
public void testFactoryDynamic() throws Exception {
    Similarity sim = getSimilarity("text_sim2");
    assertEquals(MockConfigurableSimilarity.class, sim.getClass());
    assertEquals("is there an echo?", ((MockConfigurableSimilarity) sim).getPassthrough());
}

Example 10 with Similarity

use of org.apache.lucene.search.similarities.Similarity in project lucene-solr by apache.

the class TestBM25SimilarityFactory method testParameters.

/** bm25 with parameters */
public void testParameters() throws Exception {
    Similarity sim = getSimilarity("text_params");
    assertEquals(BM25Similarity.class, sim.getClass());
    BM25Similarity bm25 = (BM25Similarity) sim;
    assertEquals(1.2f, bm25.getK1(), 0.01f);
    assertEquals(0.76f, bm25.getB(), 0.01f);
}