fr.lip6.bag.kernel
Class PowerBagKernel<V extends MLVector<?>,B extends BagOfVector<V>>

java.lang.Object
  fr.lip6.kernel.Kernel<B>
      fr.lip6.bag.kernel.PowerBagKernel<V,B>

Type Parameters:

V - type of vectors

B - type of bags

All Implemented Interfaces:

java.io.Serializable

public class PowerBagKernel<V extends MLVector<?>,B extends BagOfVector<V>>
extends Kernel<B>

Power kernel on bags :
K(Bi,Bj) = sum(sum(k(bri,bsj)^q))^(1/q)

Author:

dpicard

See Also:

Serialized Form

Constructor Summary

PowerBagKernel(Kernel<V> minorKernel, double power)
Constructor by kernel and power.

Method Summary

double	valueOf(B t1) kernel similarity to zero
double	valueOf(B t1, B t2) compute the kernel similarity between two element of input space

Methods inherited from class fr.lip6.kernel.Kernel

NormalizedValueOf

Methods inherited from class java.lang.Object

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

Constructor Detail

PowerBagKernel

public PowerBagKernel(Kernel<V> minorKernel,
                      double power)

Constructor by kernel and power.

Parameters:

minorKernel - the kernel used for similarities between vectors

power - q parameter

Method Detail

valueOf

public double valueOf(B t1,
                      B t2)

Description copied from class: Kernel

compute the kernel similarity between two element of input space

Specified by:

valueOf in class Kernel<B extends BagOfVector<V>>

Parameters:

t1 - first element

t2 - second element

Returns:

the kernel value

valueOf

public double valueOf(B t1)

Description copied from class: Kernel

kernel similarity to zero

Specified by:

valueOf in class Kernel<B extends BagOfVector<V>>

Parameters:

t1 - the element to compute the similarity to zero