org.elasticsearch.search.suggest.phrase

Class WordScorer

java.lang.Object

org.elasticsearch.search.suggest.phrase.WordScorer

Direct Known Subclasses:

LaplaceScorer, LinearInterpoatingScorer, StupidBackoffScorer

public abstract class WordScorer
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	WordScorer.WordScorerFactory

Field Summary

Fields

Modifier and Type	Field and Description
protected String	field
protected org.apache.lucene.index.IndexReader	reader
protected double	realWordLikelyhood
protected org.apache.lucene.util.BytesRef	separator
protected org.apache.lucene.util.BytesRefBuilder	spare
protected org.apache.lucene.index.Terms	terms
protected long	vocabluarySize

Constructor Summary

Constructors

Constructor and Description
WordScorer(org.apache.lucene.index.IndexReader reader, String field, double realWordLikelyHood, org.apache.lucene.util.BytesRef separator)
WordScorer(org.apache.lucene.index.IndexReader reader, org.apache.lucene.index.Terms terms, String field, double realWordLikelyHood, org.apache.lucene.util.BytesRef separator)

Method Summary

Methods

Modifier and Type	Method and Description
protected double	channelScore(DirectCandidateGenerator.Candidate candidate, DirectCandidateGenerator.Candidate original)
long	frequency(org.apache.lucene.util.BytesRef term)
double	score(DirectCandidateGenerator.Candidate[] path, DirectCandidateGenerator.CandidateSet[] candidateSet, int at, int gramSize)
protected double	scoreBigram(DirectCandidateGenerator.Candidate word, DirectCandidateGenerator.Candidate w_1)
protected double	scoreTrigram(DirectCandidateGenerator.Candidate word, DirectCandidateGenerator.Candidate w_1, DirectCandidateGenerator.Candidate w_2)
protected double	scoreUnigram(DirectCandidateGenerator.Candidate word)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

reader

protected final org.apache.lucene.index.IndexReader reader

field

protected final String field

terms

protected final org.apache.lucene.index.Terms terms

vocabluarySize

protected final long vocabluarySize

realWordLikelyhood

protected final double realWordLikelyhood

spare

protected final org.apache.lucene.util.BytesRefBuilder spare

separator

protected final org.apache.lucene.util.BytesRef separator

Constructor Detail

WordScorer

public WordScorer(org.apache.lucene.index.IndexReader reader,
          String field,
          double realWordLikelyHood,
          org.apache.lucene.util.BytesRef separator)
           throws IOException

Throws:

IOException

WordScorer

public WordScorer(org.apache.lucene.index.IndexReader reader,
          org.apache.lucene.index.Terms terms,
          String field,
          double realWordLikelyHood,
          org.apache.lucene.util.BytesRef separator)
           throws IOException

Throws:

IOException

Method Detail

frequency

public long frequency(org.apache.lucene.util.BytesRef term)
               throws IOException

Throws:

IOException

channelScore

protected double channelScore(DirectCandidateGenerator.Candidate candidate,
                  DirectCandidateGenerator.Candidate original)
                       throws IOException

Throws:

IOException

score

public double score(DirectCandidateGenerator.Candidate[] path,
           DirectCandidateGenerator.CandidateSet[] candidateSet,
           int at,
           int gramSize)
             throws IOException

Throws:

IOException

scoreUnigram

protected double scoreUnigram(DirectCandidateGenerator.Candidate word)
                       throws IOException

Throws:

IOException

scoreBigram

protected double scoreBigram(DirectCandidateGenerator.Candidate word,
                 DirectCandidateGenerator.Candidate w_1)
                      throws IOException

Throws:

IOException

scoreTrigram

protected double scoreTrigram(DirectCandidateGenerator.Candidate word,
                  DirectCandidateGenerator.Candidate w_1,
                  DirectCandidateGenerator.Candidate w_2)
                       throws IOException

Throws:

IOException