Class AfterEffect
This class acts as the base class for the implementations of the first normalization of the informative content in the DFR framework. This component is also called the after effect and is defined by the formula Inf2 = 1 - Prob2, where Prob2 measures the information gain.
Note
This API is experimental and might change in incompatible ways in the next release.
Inherited Members
Namespace: Lucene.Net.Search.Similarities
Assembly: Lucene.Net.dll
Syntax
public abstract class AfterEffectConstructors
AfterEffect()
Sole constructor. (For invocation by subclass constructors, typically implicit.)
Declaration
protected AfterEffect()See Also
Methods
Explain(BasicStats, float)
Returns an explanation for the score.
Declaration
public abstract Explanation Explain(BasicStats stats, float tfn)Parameters
| Type | Name | Description |
|---|---|---|
| BasicStats | stats | |
| float | tfn |
Returns
| Type | Description |
|---|---|
| Explanation |
See Also
Score(BasicStats, float)
Returns the aftereffect score.
Declaration
public abstract float Score(BasicStats stats, float tfn)Parameters
| Type | Name | Description |
|---|---|---|
| BasicStats | stats | |
| float | tfn |
Returns
| Type | Description |
|---|---|
| float |
See Also
ToString()
Subclasses must override this method to return the code of the after effect formula. Refer to the original paper for the list.
Declaration
public override abstract string ToString()Returns
| Type | Description |
|---|---|
| string |