com.datumbox.framework.core.mathematics.regularization

Class L2Regularizer

java.lang.Object

com.datumbox.framework.core.mathematics.regularization.L2Regularizer

public class L2Regularizer
extends java.lang.Object

Utility class for L2 regularization.

Constructor Summary

Constructors

Constructor and Description
L2Regularizer()

Method Summary

Modifier and Type	Method and Description
static <K> double	estimatePenalty(double l2, java.util.Map<K,java.lang.Double> weights) Estimates the penalty by adding the L2 regularization.
static <K> void	updateWeights(double l2, double learningRate, java.util.Map<K,java.lang.Double> weights, java.util.Map<K,java.lang.Double> newWeights) Updates the weights by applying the L2 regularization.

Methods inherited from class java.lang.Object

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

Constructor Detail

L2Regularizer

public L2Regularizer()

Method Detail

updateWeights

public static <K> void updateWeights(double l2,
                                     double learningRate,
                                     java.util.Map<K,java.lang.Double> weights,
                                     java.util.Map<K,java.lang.Double> newWeights)

Updates the weights by applying the L2 regularization.

Type Parameters:

K -

Parameters:

l2 -

learningRate -

weights -

newWeights -

estimatePenalty

public static <K> double estimatePenalty(double l2,
                                         java.util.Map<K,java.lang.Double> weights)

Estimates the penalty by adding the L2 regularization.

Type Parameters:

K -

Parameters:

l2 -

weights -

Returns: