Identical

Full name Microsoft.VisualBasic.MachineLearning.ComponentModel.Activations.Identical Assembly Microsoft.VisualBasic.MachineLearning Members 4

The identity activation function: f(x) = x.

00 Remarks

This activation function is usually used by the regression model, in which the output of the neuron node should not be transformed.

01 Syntax

Microsoft.VisualBasic.MachineLearning.ComponentModel.Activations.Identical

02 Methods

Name	Overloads	Summary
Function	1	Returns the input value itself: f(x) = x.
ToString	1	Display this activation function as a text expression.
Derivative	1	The derivative of the identity function is the constant 1.

03 Properties

Name	Overloads	Summary
Store	1	Gets the XML serializable data model of this identity function.

04 Members

method Function #

Function(Double)

Returns the input value itself: f(x) = x.

Parameters

Name	Type	Description
`x`	`Double`	The function input value.

Returns

The x value itself.

method ToString #

ToString

Display this activation function as a text expression.

Returns

The text expression of this identity function.

method Derivative #

Derivative(Double)

The derivative of the identity function is the constant 1.

Parameters

Name	Type	Description
`x`	`Double`	The function input value.

Returns

The constant value 1.

property Store #

Store

Gets the XML serializable data model of this identity function.

Returns

A ActiveFunction data model which its function name is Identical and no argument is required.