org.nd4j.autodiff.listeners

Class Loss

java.lang.Object

org.nd4j.autodiff.listeners.Loss

public class Loss
extends Object

Constructor Summary

Constructors

Constructor and Description
Loss(@NonNull List<String> lossNames, @NonNull double[] losses)

Method Summary

Modifier and Type	Method and Description
Loss	add(Loss other)
static Loss	add(Loss a, Loss b)
static Loss	average(List<Loss> losses)
Loss	copy()
static Loss	div(Loss a, Number b)
Loss	div(Number other)
double	getLoss(@NonNull String lossName) Get the specified loss by name
List<String>	lossNames()
double[]	lossValues()
Loss	minus(Loss other)
int	numLosses()
Loss	plus(Loss other)
Loss	sub(Loss other)
static Loss	sub(Loss a, Loss b)
static Loss	sum(List<Loss> losses)
double	totalLoss()

Methods inherited from class java.lang.Object

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

Constructor Detail

Loss

public Loss(@NonNull
            @NonNull List<String> lossNames,
            @NonNull
            @NonNull double[] losses)

Parameters:

lossNames - Names of the losses

losses - Values for each loss. Must be same length as lossNames

Method Detail

numLosses

public int numLosses()

Returns:

Number of loss values (i.e., length of lossNames and losses)

lossNames

public List<String> lossNames()

Returns:

Names of all of the loss components

lossValues

public double[] lossValues()

Returns:

Values corresponding to each of the losses (same order as lossNames())

getLoss

public double getLoss(@NonNull
                      @NonNull String lossName)

Get the specified loss by name

Parameters:

lossName - Name of the loss (must exist)

Returns:

Specified loss value

totalLoss

public double totalLoss()

Returns:

The total loss (sum of all loss components)

copy

public Loss copy()

sum

public static Loss sum(List<Loss> losses)

average

public static Loss average(List<Loss> losses)

add

public static Loss add(Loss a,
                       Loss b)

sub

public static Loss sub(Loss a,
                       Loss b)

div

public static Loss div(Loss a,
                       Number b)

add

public Loss add(Loss other)

sub

public Loss sub(Loss other)

plus

public Loss plus(Loss other)

minus

public Loss minus(Loss other)

div

public Loss div(Number other)