org.lenskit.knn.item

Class ItemItemResult

java.lang.Object

org.lenskit.results.AbstractResult

org.lenskit.knn.item.ItemItemResult

All Implemented Interfaces:

Result, KeyedObject

public class ItemItemResult
extends AbstractResult

The result type for item-item collaborative filtering.

Field Summary

Fields inherited from class org.lenskit.results.AbstractResult

id, score

Constructor Summary

Constructors

Constructor and Description
ItemItemResult(long item, double score, int nnbrs, double weight) Construct a new item-item CF result.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
int	getNeighborhoodSize() Get the number of neighbors used to score this item.
double	getNeighborWeight() Get the total weight of the neighborhood.
int	hashCode()
String	toString()

Methods inherited from class org.lenskit.results.AbstractResult

as, getId, getKey, getScore, hasScore, startEquality, startEquality, startHashCode, startHashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ItemItemResult

public ItemItemResult(long item,
                      double score,
                      int nnbrs,
                      double weight)

Construct a new item-item CF result.

Parameters:

item - The item ID.

score - The score.

nnbrs - The neighborhood size.

Method Detail

getNeighborhoodSize

public int getNeighborhoodSize()

Get the number of neighbors used to score this item.

Returns:

The number of neighbors used to score this item.

getNeighborWeight

public double getNeighborWeight()

Get the total weight of the neighborhood.

Returns:

The total weight of the neighborhood.

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object