Java Doc for DefaultSimilarity.java in  » Net » lucene-connector » org » apache » lucene » search » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » lucene connector » org.apache.lucene.search   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.lucene.search.Similarity       org.apache.lucene.search.DefaultSimilarity All known Subclasses:   org.apache.lucene.misc.SweetSpotSimilarity, DefaultSimilarity public class DefaultSimilarity extends Similarity (Code) Expert: Default scoring implementation. Method Summary public  float coord(int overlap, int maxOverlap)      Implemented as overlap / maxOverlap. public  float idf(int docFreq, int numDocs)      Implemented as log(numDocs/(docFreq+1)) + 1. public  float lengthNorm(String fieldName, int numTerms)      Implemented as 1/sqrt(numTerms). public  float queryNorm(float sumOfSquaredWeights)      Implemented as 1/sqrt(sumOfSquaredWeights). public  float sloppyFreq(int distance)      Implemented as 1 / (distance + 1). public  float tf(float freq)      Implemented as sqrt(freq). Method Detail coord public float coord(int overlap, int maxOverlap)(Code) Implemented as overlap / maxOverlap. idf public float idf(int docFreq, int numDocs)(Code) Implemented as log(numDocs/(docFreq+1)) + 1. lengthNorm public float lengthNorm(String fieldName, int numTerms)(Code) Implemented as 1/sqrt(numTerms). queryNorm public float queryNorm(float sumOfSquaredWeights)(Code) Implemented as 1/sqrt(sumOfSquaredWeights). sloppyFreq public float sloppyFreq(int distance)(Code) Implemented as 1 / (distance + 1). tf public float tf(float freq)(Code) Implemented as sqrt(freq). Methods inherited from org.apache.lucene.search.Similarity abstract public float coord(int overlap, int maxOverlap)(Code)(Java Doc) public static float decodeNorm(byte b)(Code)(Java Doc) public static byte encodeNorm(float f)(Code)(Java Doc) public static Similarity getDefault()(Code)(Java Doc) public static float[] getNormDecoder()(Code)(Java Doc) public float idf(Term term, Searcher searcher) throws IOException(Code)(Java Doc) public float idf(Collection terms, Searcher searcher) throws IOException(Code)(Java Doc) abstract public float idf(int docFreq, int numDocs)(Code)(Java Doc) abstract public float lengthNorm(String fieldName, int numTokens)(Code)(Java Doc) abstract public float queryNorm(float sumOfSquaredWeights)(Code)(Java Doc) public float scorePayload(String fieldName, byte[] payload, int offset, int length)(Code)(Java Doc) public static void setDefault(Similarity similarity)(Code)(Java Doc) abstract public float sloppyFreq(int distance)(Code)(Java Doc) public float tf(int freq)(Code)(Java Doc) abstract public float tf(float freq)(Code)(Java Doc) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)