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java.lang.Object org.apache.lucene.search.similarities.Similarity.SloppySimScorer
public abstract static class Similarity.SloppySimScorer
API for scoring "sloppy" queries such as SpanQuery
and
sloppy PhraseQuery
.
Frequencies are floating-point values: an approximate
within-document frequency adjusted for "sloppiness" by
computeSlopFactor(int)
.
Constructor Summary | |
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Similarity.SloppySimScorer()
Sole constructor. |
Method Summary | |
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abstract float |
computePayloadFactor(int doc,
int start,
int end,
BytesRef payload)
Calculate a scoring factor based on the data in the payload. |
abstract float |
computeSlopFactor(int distance)
Computes the amount of a sloppy phrase match, based on an edit distance. |
Explanation |
explain(int doc,
Explanation freq)
Explain the score for a single document |
abstract float |
score(int doc,
float freq)
Score a single document |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Similarity.SloppySimScorer()
Method Detail |
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public abstract float score(int doc, float freq)
doc
- document id within the inverted index segmentfreq
- sloppy term frequency
public abstract float computeSlopFactor(int distance)
public abstract float computePayloadFactor(int doc, int start, int end, BytesRef payload)
public Explanation explain(int doc, Explanation freq)
doc
- document id within the inverted index segmentfreq
- Explanation of how the sloppy term frequency was computed
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