org.nd4j.linalg.api.activation

Class Sigmoid

java.lang.Object

org.nd4j.linalg.api.activation.BaseActivationFunction

org.nd4j.linalg.api.activation.Sigmoid

All Implemented Interfaces:

com.google.common.base.Function<INDArray,INDArray>, Serializable, ActivationFunction

public class Sigmoid
extends BaseActivationFunction

Sigmoid function (complex AND real!) http://www.kurims.kyoto-u.ac.jp/~kyodo/kokyuroku/contents/pdf/1742-18.pdf For complex we set the k = 1

Author:

Adam Gibson

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Sigmoid()

Method Summary

Modifier and Type	Method and Description
INDArray	applyDerivative(INDArray input) Applies the derivative of this function
Class<? extends ElementWiseOp>	transformClazz() The class used for transformation

Methods inherited from class org.nd4j.linalg.api.activation.BaseActivationFunction

apply, equals, toString, type

Methods inherited from class java.lang.Object

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

Constructor Detail

Sigmoid

public Sigmoid()

Method Detail

transformClazz

public Class<? extends ElementWiseOp> transformClazz()

The class used for transformation

Returns:

the class used for transformation

applyDerivative

public INDArray applyDerivative(INDArray input)

Description copied from interface: ActivationFunction

Applies the derivative of this function

Parameters:

input - the input to apply it to

Returns:

the derivative of this function applied to the input