Class Lambda

The lambda (λw) parameter in information-based models.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk
Inheritance
System.Object
Lambda
LambdaDF
LambdaTTF
Namespace: Lucene.Net.Search.Similarities
Assembly: Lucene.Net.dll
Syntax
public abstract class Lambda : object

Constructors

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Lambda()

Sole constructor. (For invocation by subclass constructors, typically implicit.)

Declaration
public Lambda()

Methods

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CalculateLambda(BasicStats)

Computes the lambda parameter.

Declaration
public abstract float CalculateLambda(BasicStats stats)
Parameters
Type Name Description
BasicStats stats
Returns
Type Description
System.Single
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Explain(BasicStats)

Explains the lambda parameter.

Declaration
public abstract Explanation Explain(BasicStats stats)
Parameters
Type Name Description
BasicStats stats
Returns
Type Description
Explanation
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ToString()

Subclasses must override this method to return the code of the lambda formula. Since the original paper is not very clear on this matter, and also uses the DFR naming scheme incorrectly, the codes here were chosen arbitrarily.

Declaration
public abstract override string ToString()
Returns
Type Description
System.String

See Also