BasicModelP (Jackrabbit Oak 1.71-SNAPSHOT API)

java.lang.Object
- org.apache.lucene.search.similarities.BasicModel
- - org.apache.lucene.search.similarities.BasicModelP

```
public class BasicModelP
extends BasicModel
```
Implements the Poisson approximation for the binomial model for DFR.

Field Summary

Fields
Modifier and Type Field Description

protected static double LOG2_E
log2(Math.E), precomputed.

Constructor Summary

Constructors
Constructor Description

BasicModelP()
Sole constructor: parameter-free

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`float`	`score(BasicStats stats, float tfn)`	Returns the informative content score.
`String`	`toString()`	Subclasses must override this method to return the code of the basic model formula.

Methods inherited from class org.apache.lucene.search.similarities.BasicModel
explain

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - LOG2_E
```
protected static double LOG2_E
```
    log2(Math.E), precomputed.
- Constructor Detail
  - BasicModelP
```
public BasicModelP()
```
    Sole constructor: parameter-free
- Method Detail
  - score
```
public final float score(BasicStats stats,
                         float tfn)
```
    Description copied from class: BasicModel
    
    Returns the informative content score.
    
    Specified by:
    
    score in class BasicModel
  - toString
```
public String toString()
```
    Description copied from class: BasicModel
    
    Subclasses must override this method to return the code of the basic model formula. Refer to the original paper for the list.
    
    Specified by:
    
    toString in class BasicModel