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

Example 16 with ClassicSimilarity

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

the class TestValueSources method testNorm.

public void testNorm() throws Exception {
    Similarity saved = searcher.getSimilarity(true);
    try {
        // no norm field (so agnostic to indexed similarity)
        searcher.setSimilarity(new ClassicSimilarity());
        ValueSource vs = new NormValueSource("byte");
        assertHits(new FunctionQuery(vs), new float[] { 1f, 1f });
        // regardless of whether norms exist, value source exists == 0
        assertAllExist(vs);
        vs = new NormValueSource("text");
        assertAllExist(vs);
    } finally {
        searcher.setSimilarity(saved);
    }
}

Example 17 with ClassicSimilarity

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

the class TestCustomScoreExplanations method testSubExplanations.

public void testSubExplanations() throws IOException {
    Query query = new FunctionQuery(new ConstValueSource(5));
    IndexSearcher searcher = newSearcher(BaseExplanationTestCase.searcher.getIndexReader());
    searcher.setSimilarity(new BM25Similarity());
    Explanation expl = searcher.explain(query, 0);
    assertEquals(2, expl.getDetails().length);
    // function
    assertEquals(5f, expl.getDetails()[0].getValue(), 0f);
    // boost
    assertEquals("boost", expl.getDetails()[1].getDescription());
    assertEquals(1f, expl.getDetails()[1].getValue(), 0f);
    query = new BoostQuery(query, 2);
    expl = searcher.explain(query, 0);
    assertEquals(2, expl.getDetails().length);
    // function
    assertEquals(5f, expl.getDetails()[0].getValue(), 0f);
    // boost
    assertEquals("boost", expl.getDetails()[1].getDescription());
    assertEquals(2f, expl.getDetails()[1].getValue(), 0f);
    // in order to have a queryNorm != 1
    searcher.setSimilarity(new ClassicSimilarity());
    expl = searcher.explain(query, 0);
    assertEquals(2, expl.getDetails().length);
    // function
    assertEquals(5f, expl.getDetails()[0].getValue(), 0f);
    // boost
    assertEquals("boost", expl.getDetails()[1].getDescription());
    assertEquals(2f, expl.getDetails()[1].getValue(), 0f);
}

Example 18 with ClassicSimilarity

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

the class TestFunctionScoreExplanations method testSubExplanations.

public void testSubExplanations() throws IOException {
    Query query = new FunctionScoreQuery(new MatchAllDocsQuery(), DoubleValuesSource.constant(5));
    IndexSearcher searcher = newSearcher(BaseExplanationTestCase.searcher.getIndexReader());
    searcher.setSimilarity(new BM25Similarity());
    Explanation expl = searcher.explain(query, 0);
    assertEquals("constant(5.0)", expl.getDescription());
    assertEquals(0, expl.getDetails().length);
    query = new BoostQuery(query, 2);
    expl = searcher.explain(query, 0);
    assertEquals(2, expl.getDetails().length);
    // function
    assertEquals(5f, expl.getDetails()[1].getValue(), 0f);
    // boost
    assertEquals("boost", expl.getDetails()[0].getDescription());
    assertEquals(2f, expl.getDetails()[0].getValue(), 0f);
    // in order to have a queryNorm != 1
    searcher.setSimilarity(new ClassicSimilarity());
    expl = searcher.explain(query, 0);
    assertEquals(2, expl.getDetails().length);
    // function
    assertEquals(5f, expl.getDetails()[1].getValue(), 0f);
    // boost
    assertEquals("boost", expl.getDetails()[0].getDescription());
    assertEquals(2f, expl.getDetails()[0].getValue(), 0f);
}

Example 19 with ClassicSimilarity

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

the class TestTermScorer method setUp.

@Override
public void setUp() throws Exception {
    super.setUp();
    directory = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), directory, newIndexWriterConfig(new MockAnalyzer(random())).setMergePolicy(newLogMergePolicy()).setSimilarity(new ClassicSimilarity()));
    for (int i = 0; i < values.length; i++) {
        Document doc = new Document();
        doc.add(newTextField(FIELD, values[i], Field.Store.YES));
        writer.addDocument(doc);
    }
    writer.forceMerge(1);
    indexReader = getOnlyLeafReader(writer.getReader());
    writer.close();
    indexSearcher = newSearcher(indexReader, false);
    indexSearcher.setSimilarity(new ClassicSimilarity());
}

Example 20 with ClassicSimilarity

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

the class TestExpressionRescorer method setUp.

@Override
public void setUp() throws Exception {
    super.setUp();
    dir = newDirectory();
    RandomIndexWriter iw = new RandomIndexWriter(random(), dir, newIndexWriterConfig().setSimilarity(new ClassicSimilarity()));
    Document doc = new Document();
    doc.add(newStringField("id", "1", Field.Store.YES));
    doc.add(newTextField("body", "some contents and more contents", Field.Store.NO));
    doc.add(new NumericDocValuesField("popularity", 5));
    iw.addDocument(doc);
    doc = new Document();
    doc.add(newStringField("id", "2", Field.Store.YES));
    doc.add(newTextField("body", "another document with different contents", Field.Store.NO));
    doc.add(new NumericDocValuesField("popularity", 20));
    iw.addDocument(doc);
    doc = new Document();
    doc.add(newStringField("id", "3", Field.Store.YES));
    doc.add(newTextField("body", "crappy contents", Field.Store.NO));
    doc.add(new NumericDocValuesField("popularity", 2));
    iw.addDocument(doc);
    reader = iw.getReader();
    searcher = new IndexSearcher(reader);
    // TODO: fix this test to not be so flaky and use newSearcher
    searcher.setSimilarity(new ClassicSimilarity());
    iw.close();
}