Implemented as

log(numDocs/(docFreq+1)) + 1

.

Overload List

Inherited from Similarity.

public virtual float Idf(Term,Searcher);

Inherited from Similarity.

public virtual float Idf(ICollection,Searcher);

Implemented as

log(numDocs/(docFreq+1)) + 1

.

public override float Idf(int,int);

See Also

DefaultSimilarity Class | Lucene.Net.Search Namespace

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