org.tribuo.math.kernel

Class RBF

java.lang.Object

org.tribuo.math.kernel.RBF

All Implemented Interfaces:

com.oracle.labs.mlrg.olcut.config.Configurable, com.oracle.labs.mlrg.olcut.provenance.Provenancable<com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance>, Serializable, Kernel

public class RBF
extends Object
implements Kernel

A Radial Basis Function (RBF) kernel, exp(-gamma*|u-v|^2).

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
RBF(double gamma) A Radial Basis Function (RBF) kernel, exp(-gamma*|u-v|^2).

Method Summary

Modifier and Type	Method and Description
com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance	getProvenance()
double	similarity(SparseVector a, SparseVector b) Calculates the similarity between two SparseVectors.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oracle.labs.mlrg.olcut.config.Configurable

postConfig

Constructor Detail

RBF

public RBF(double gamma)

A Radial Basis Function (RBF) kernel, exp(-gamma*|u-v|^2).

Parameters:

gamma - The length scale of the gaussian.

Method Detail

similarity

public double similarity(SparseVector a,
                         SparseVector b)

Description copied from interface: Kernel

Calculates the similarity between two SparseVectors.

Specified by:

similarity in interface Kernel

Parameters:

a - The first SparseVector.

b - The second SparseVector.

Returns:

A value between 0 and 1, where 1 is most similar and 0 is least similar.

toString

public String toString()

Overrides:

toString in class Object

getProvenance

public com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance getProvenance()

Specified by:

getProvenance in interface com.oracle.labs.mlrg.olcut.provenance.Provenancable<com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance>