org.apache.lucene.search
public class DefaultSimilarity extends Similarity
Method Summary | |
---|---|
float | coord(int overlap, int maxOverlap) Implemented as overlap / maxOverlap . |
float | idf(int docFreq, int numDocs) Implemented as log(numDocs/(docFreq+1)) + 1 . |
float | lengthNorm(String fieldName, int numTerms) Implemented as 1/sqrt(numTerms) . |
float | queryNorm(float sumOfSquaredWeights) Implemented as 1/sqrt(sumOfSquaredWeights) . |
float | sloppyFreq(int distance) Implemented as 1 / (distance + 1) . |
float | tf(float freq) Implemented as sqrt(freq) . |
overlap / maxOverlap
.log(numDocs/(docFreq+1)) + 1
.1/sqrt(numTerms)
.1/sqrt(sumOfSquaredWeights)
.1 / (distance + 1)
.sqrt(freq)
.