org.biojava.stats.svm

Class ListSumKernel

java.lang.Object

org.biojava.stats.svm.NestedKernel

org.biojava.stats.svm.ListSumKernel

All Implemented Interfaces:

java.io.Serializable, SVMKernel

public class ListSumKernel
extends NestedKernel

This kernel computes the sum of the dot products between items of two lists at corresponding indexes. We define k(x, null) to be zero for when list elements are null.

Author:

Matthew Pocock

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ListSumKernel()

Method Summary

Methods

Modifier and Type	Method and Description
double	evaluate(java.lang.Object a, java.lang.Object b) Return the dot product of two vectors in an arbitrary feature space.
java.lang.String	toString()

Methods inherited from class org.biojava.stats.svm.NestedKernel

getNestedKernel, setNestedKernel

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ListSumKernel

public ListSumKernel()

Method Detail

evaluate

public double evaluate(java.lang.Object a,
              java.lang.Object b)

Description copied from interface: SVMKernel

Return the dot product of two vectors in an arbitrary feature space. In this implementation, the `vectors' can actually be arbitrary objects.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object