KendallsTauOfTopK (jaicore-ml 0.1.6 API)

java.lang.Object
- ai.libs.jaicore.ml.dyadranking.loss.KendallsTauOfTopK

All Implemented Interfaces:

DyadRankingLossFunction
```
public class KendallsTauOfTopK
extends java.lang.Object
implements DyadRankingLossFunction
```
Calculates the kendalls-tau loss only for the top k dyads. https://researcher.watson.ibm.com/researcher/files/us-fagin/topk.pdf

Constructor Summary

Constructors
Constructor Description

KendallsTauOfTopK(int k, double p)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`loss(IDyadRankingInstance actual, IDyadRankingInstance predicted)`	Computes the loss between the actual dyad ordering and predicted dyad ordering, represented by dyad ranking instances.

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

- Constructor Detail
  - KendallsTauOfTopK
```
public KendallsTauOfTopK(int k,
                         double p)
```
- Method Detail
  - loss
```
public double loss(IDyadRankingInstance actual,
                   IDyadRankingInstance predicted)
```
    Description copied from interface: DyadRankingLossFunction
    
    Computes the loss between the actual dyad ordering and predicted dyad ordering, represented by dyad ranking instances.
    
    Specified by:
    
    loss in interface DyadRankingLossFunction
    
    Parameters:
    
    actual - the correct ordering
    
    predicted - the predicted ordering
    
    Returns:
    
    the loss between the predicted and correct ordering, depending on the implementation