Computes a score factor based on a term or phrase's frequency in a document. This value is multiplied by the {@link #Idf(Term, Searcher)} factor for each term in the query and these products are then summed to form the initial score for a document.

Terms and phrases repeated in a document indicate the topic of the document, so implementations of this method usually return larger values when

is large, and smaller values when

CopyC#

freq

is small.

public abstract float Tf(
	float freq
)

Public MustOverride Function Tf ( _
	freq As Single _
) As Single

public:
virtual float Tf(
	float freq
) abstract