282 lines
7.3 KiB
C#
282 lines
7.3 KiB
C#
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using NUnit.Framework;
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using SimpleAnalyzer = Lucene.Net.Analysis.SimpleAnalyzer;
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using Document = Lucene.Net.Documents.Document;
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using Field = Lucene.Net.Documents.Field;
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using IndexReader = Lucene.Net.Index.IndexReader;
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using IndexWriter = Lucene.Net.Index.IndexWriter;
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using Term = Lucene.Net.Index.Term;
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using RAMDirectory = Lucene.Net.Store.RAMDirectory;
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using LuceneTestCase = Lucene.Net.Util.LuceneTestCase;
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namespace Lucene.Net.Search
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{
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/// <summary>Similarity unit test.</summary>
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[TestFixture]
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public class TestSimilarity:LuceneTestCase
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{
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private class AnonymousClassCollector:Collector
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{
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public AnonymousClassCollector(TestSimilarity enclosingInstance)
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{
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InitBlock(enclosingInstance);
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}
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private void InitBlock(TestSimilarity enclosingInstance)
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{
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this.enclosingInstance = enclosingInstance;
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}
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private TestSimilarity enclosingInstance;
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public TestSimilarity Enclosing_Instance
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{
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get
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{
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return enclosingInstance;
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}
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}
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private Scorer scorer;
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public override void SetScorer(Scorer scorer)
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{
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this.scorer = scorer;
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}
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public override void Collect(int doc)
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{
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Assert.AreEqual(1.0f, scorer.Score());
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}
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public override void SetNextReader(IndexReader reader, int docBase)
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{
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}
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public override bool AcceptsDocsOutOfOrder
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{
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get { return true; }
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}
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}
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private class AnonymousClassCollector1:Collector
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{
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public AnonymousClassCollector1(TestSimilarity enclosingInstance)
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{
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InitBlock(enclosingInstance);
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}
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private void InitBlock(TestSimilarity enclosingInstance)
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{
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this.enclosingInstance = enclosingInstance;
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}
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private TestSimilarity enclosingInstance;
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public TestSimilarity Enclosing_Instance
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{
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get
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{
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return enclosingInstance;
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}
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}
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private int base_Renamed = 0;
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private Scorer scorer;
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public override void SetScorer(Scorer scorer)
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{
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this.scorer = scorer;
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}
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public override void Collect(int doc)
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{
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//System.out.println("Doc=" + doc + " score=" + score);
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Assert.AreEqual((float) doc + base_Renamed + 1, scorer.Score());
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}
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public override void SetNextReader(IndexReader reader, int docBase)
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{
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base_Renamed = docBase;
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}
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public override bool AcceptsDocsOutOfOrder
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{
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get { return true; }
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}
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}
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private class AnonymousClassCollector2:Collector
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{
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public AnonymousClassCollector2(TestSimilarity enclosingInstance)
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{
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InitBlock(enclosingInstance);
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}
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private void InitBlock(TestSimilarity enclosingInstance)
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{
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this.enclosingInstance = enclosingInstance;
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}
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private TestSimilarity enclosingInstance;
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public TestSimilarity Enclosing_Instance
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{
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get
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{
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return enclosingInstance;
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}
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}
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private Scorer scorer;
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public override void SetScorer(Scorer scorer)
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{
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this.scorer = scorer;
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}
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public override void Collect(int doc)
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{
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//System.out.println("Doc=" + doc + " score=" + score);
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Assert.AreEqual(1.0f, scorer.Score());
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}
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public override void SetNextReader(IndexReader reader, int docBase)
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{
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}
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public override bool AcceptsDocsOutOfOrder
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{
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get { return true; }
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}
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}
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private class AnonymousClassCollector3:Collector
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{
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public AnonymousClassCollector3(TestSimilarity enclosingInstance)
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{
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InitBlock(enclosingInstance);
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}
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private void InitBlock(TestSimilarity enclosingInstance)
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{
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this.enclosingInstance = enclosingInstance;
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}
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private TestSimilarity enclosingInstance;
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public TestSimilarity Enclosing_Instance
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{
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get
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{
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return enclosingInstance;
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}
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}
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private Scorer scorer;
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public override void SetScorer(Scorer scorer)
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{
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this.scorer = scorer;
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}
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public override void Collect(int doc)
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{
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//System.out.println("Doc=" + doc + " score=" + score);
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Assert.AreEqual(2.0f, scorer.Score());
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}
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public override void SetNextReader(IndexReader reader, int docBase)
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{
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}
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public override bool AcceptsDocsOutOfOrder
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{
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get { return true; }
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}
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}
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private class AnonymousIDFExplanation : Explanation.IDFExplanation
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{
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public override float Idf
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{
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get { return 1.0f; }
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}
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public override string Explain()
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{
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return "Inexplicable";
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}
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}
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[Serializable]
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public class SimpleSimilarity : Similarity
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{
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public override float LengthNorm(System.String field, int numTerms)
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{
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return 1.0f;
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}
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public override float QueryNorm(float sumOfSquaredWeights)
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{
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return 1.0f;
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}
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public override float Tf(float freq)
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{
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return freq;
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}
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public override float SloppyFreq(int distance)
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{
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return 2.0f;
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}
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public override float Idf(int docFreq, int numDocs)
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{
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return 1.0f;
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}
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public override float Coord(int overlap, int maxOverlap)
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{
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return 1.0f;
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}
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public override Explanation.IDFExplanation IdfExplain(System.Collections.Generic.ICollection<Term> terms, Searcher searcher)
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{
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return new AnonymousIDFExplanation();
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}
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}
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[Test]
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public virtual void TestSimilarity_Renamed()
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{
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RAMDirectory store = new RAMDirectory();
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IndexWriter writer = new IndexWriter(store, new SimpleAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
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writer.SetSimilarity(new SimpleSimilarity());
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Document d1 = new Document();
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d1.Add(new Field("field", "a c", Field.Store.YES, Field.Index.ANALYZED));
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Document d2 = new Document();
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d2.Add(new Field("field", "a b c", Field.Store.YES, Field.Index.ANALYZED));
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writer.AddDocument(d1);
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writer.AddDocument(d2);
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writer.Optimize();
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writer.Close();
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Searcher searcher = new IndexSearcher(store, true);
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searcher.Similarity = new SimpleSimilarity();
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Term a = new Term("field", "a");
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Term b = new Term("field", "b");
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Term c = new Term("field", "c");
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searcher.Search(new TermQuery(b), new AnonymousClassCollector(this));
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BooleanQuery bq = new BooleanQuery();
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bq.Add(new TermQuery(a), Occur.SHOULD);
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bq.Add(new TermQuery(b), Occur.SHOULD);
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//System.out.println(bq.toString("field"));
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searcher.Search(bq, new AnonymousClassCollector1(this));
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PhraseQuery pq = new PhraseQuery();
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pq.Add(a);
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pq.Add(c);
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//System.out.println(pq.toString("field"));
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searcher.Search(pq, new AnonymousClassCollector2(this));
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pq.Slop = 2;
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//System.out.println(pq.toString("field"));
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searcher.Search(pq, new AnonymousClassCollector3(this));
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}
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}
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} |