Example usage for org.apache.lucene.misc SweetSpotSimilarity SweetSpotSimilarity

Introduction

In this page you can find the example usage for org.apache.lucene.misc SweetSpotSimilarity SweetSpotSimilarity.

Prototype

public SweetSpotSimilarity() 

Source Link

Usage

From source file:com.o19s.es.ltr.query.LtrQueryTests.java

License:Apache License

@Before
public void setupIndex() throws IOException {
    dirUnderTest = newDirectory();/*from   ww w .j  a  va2s . c om*/
    List<Similarity> sims = Arrays.asList(new ClassicSimilarity(), new SweetSpotSimilarity(), // extends Classic
            new BM25Similarity(), new LMDirichletSimilarity(), new BooleanSimilarity(),
            new LMJelinekMercerSimilarity(0.2F), new AxiomaticF3LOG(0.5F, 10),
            new DFISimilarity(new IndependenceChiSquared()),
            new DFRSimilarity(new BasicModelBE(), new AfterEffectB(), new NormalizationH1()),
            new IBSimilarity(new DistributionLL(), new LambdaDF(), new NormalizationH3()));
    similarity = sims.get(random().nextInt(sims.size()));

    indexWriterUnderTest = new RandomIndexWriter(random(), dirUnderTest,
            newIndexWriterConfig().setSimilarity(similarity));
    for (int i = 0; i < docs.length; i++) {
        Document doc = new Document();
        doc.add(newStringField("id", "" + i, Field.Store.YES));
        doc.add(newField("field", docs[i], Store.YES));
        indexWriterUnderTest.addDocument(doc);
    }
    indexWriterUnderTest.commit();
    indexWriterUnderTest.forceMerge(1);
    indexWriterUnderTest.flush();

    indexReaderUnderTest = indexWriterUnderTest.getReader();
    searcherUnderTest = newSearcher(indexReaderUnderTest);
    searcherUnderTest.setSimilarity(similarity);
}

---

From source file:org.eu.bitzone.Leia.java

License:Apache License

public Similarity createSimilarity(final Object srchOpts) {
    final Object ckSimDef = find(srchOpts, "ckSimDef");
    final Object ckSimSweet = find(srchOpts, "ckSimSweet");
    final Object ckSimOther = find(srchOpts, "ckSimOther");
    final Object simClass = find(srchOpts, "simClass");
    final Object ckSimCust = find(srchOpts, "ckSimCust");
    if (getBoolean(ckSimDef, "selected")) {
        return new DefaultSimilarity();
    } else if (getBoolean(ckSimSweet, "selected")) {
        return new SweetSpotSimilarity();
    } else if (getBoolean(ckSimOther, "selected")) {
        try {//from w w w.j  a  v a 2  s. co m
            final Class clazz = Class.forName(getString(simClass, "text"));
            if (Similarity.class.isAssignableFrom(clazz)) {
                final Similarity sim = (Similarity) clazz.newInstance();
                return sim;
            } else {
                throw new Exception("Not a subclass of Similarity: " + clazz.getName());
            }
        } catch (final Exception e) {
            e.printStackTrace();
            showStatus("ERROR: invalid Similarity, using default");
            setBoolean(ckSimDef, "selected", true);
            setBoolean(ckSimOther, "selected", false);
            return new DefaultSimilarity();
        }
    } else if (getBoolean(ckSimCust, "selected")) {
        return similarity;
    } else {
        return new DefaultSimilarity();
    }
}

---

From source file:org.getopt.luke.Luke.java

License:Apache License

public Similarity createSimilarity(Object srchOpts) {
    Object ckSimDef = find(srchOpts, "ckSimDef");
    Object ckSimSweet = find(srchOpts, "ckSimSweet");
    Object ckSimOther = find(srchOpts, "ckSimOther");
    Object simClass = find(srchOpts, "simClass");
    Object ckSimCust = find(srchOpts, "ckSimCust");
    if (getBoolean(ckSimDef, "selected")) {
        return new DefaultSimilarity();
    } else if (getBoolean(ckSimSweet, "selected")) {
        return new SweetSpotSimilarity();
    } else if (getBoolean(ckSimOther, "selected")) {
        try {//from  w w w. j a v  a  2 s. co m
            Class clazz = Class.forName(getString(simClass, "text"));
            if (Similarity.class.isAssignableFrom(clazz)) {
                Similarity sim = (Similarity) clazz.newInstance();
                return sim;
            } else {
                throw new Exception("Not a subclass of Similarity: " + clazz.getName());
            }
        } catch (Exception e) {
            e.printStackTrace();
            showStatus("ERROR: invalid Similarity, using default");
            setBoolean(ckSimDef, "selected", true);
            setBoolean(ckSimOther, "selected", false);
            return new DefaultSimilarity();
        }
    } else if (getBoolean(ckSimCust, "selected")) {
        return similarity;
    } else {
        return new DefaultSimilarity();
    }
}

---