Class NormalizationZ

Pareto-Zipf Normalization

Note

This API is experimental and might change in incompatible ways in the next release.

Inheritance
object
Normalization
NormalizationZ
Inherited Members
Namespace: Lucene.Net.Search.Similarities
Assembly: Lucene.Net.dll
Syntax
public class NormalizationZ : Normalization

Constructors

NormalizationZ()

Calls NormalizationZ(0.3)

Declaration
public NormalizationZ()

NormalizationZ(float)

Creates NormalizationZ with the supplied parameter z.

Declaration
public NormalizationZ(float z)
Parameters
Type Name Description
float z

represents A/(A+1) where A measures the specificity of the language.

Properties

Z

Returns the parameter z

Declaration
public virtual float Z { get; }
Property Value
Type Description
float
See Also

Methods

Tfn(BasicStats, float, float)

Returns the normalized term frequency.

Declaration
public override float Tfn(BasicStats stats, float tf, float len)
Parameters
Type Name Description
BasicStats stats
float tf
float len

the field length.
Returns
Type Description
float
Overrides

ToString()

Subclasses must override this method to return the code of the normalization formula. Refer to the original paper for the list.

Declaration
public override string ToString()
Returns
Type Description
string
Overrides