nuget
激活函数的存储于XML文档之中的数据模型
ActiveFunction
01 Syntax
Microsoft.VisualBasic.MachineLearning.ComponentModel.Activations.ActiveFunction
02 Methods
| Name | Overloads | Summary |
|---|---|---|
| CreateFunction | 1 | Create the activation function object instance from the stored data model. |
| HasKey | 1 | Does a specific constructor argument exists in the ActiveFunction.Arguments list? |
| ToString | 1 | Display this activation function data model as a text expression. |
| op_Explicit | 1 | 将激活函数从数据模型转换为对象模型 |
| Parse | 1 | 将文本表达式解析为激活函数的模型 |
03 Properties
| Name | Overloads | Summary |
|---|---|---|
| name | 1 | The function name |
| Arguments | 1 | 函数对象的构造参数列表 |
| Item | 1 | Gets the value of a specific constructor argument by its name. |
| Function | 1 | 通过这个只读属性来得到激活函数的对象模型 |
| ReLU | 1 | The default text expression of the ReLU function: ReLU(). |
| Threshold | 1 | The default text expression of the Threshold function: Threshold(). |
| Sigmoid | 1 | The default text expression of the Sigmoid function: Sigmoid(alpha:=2.0). |
| BipolarSigmoid | 1 | The default text expression of the BipolarSigmoid function: BipolarSigmoid(alpha:=2.0). |
04 Members
CreateFunction
Create the activation function object instance from the stored data model.
Remarks
A default Sigmoid function will be returned when the ActiveFunction.name value is not a valid function name.
Returns
An IActivationFunction object instance which is described by the ActiveFunction.name and ActiveFunction.Arguments.
HasKey(
String)Does a specific constructor argument exists in the ActiveFunction.Arguments list?
Parameters
| Name | Type | Description |
|---|---|---|
name | String | The argument name, the name is case insensitive. |
Returns
True when the target argument is exists in the ActiveFunction.Arguments list, otherwise False.
ToString
Display this activation function data model as a text expression.
Returns
A string in format like name(arg1:=value1, arg2:=value2), which can be parsed back by the ActiveFunction.Parse() function.
op_Explicit(ActiveFunction)
将激活函数从数据模型转换为对象模型
Parameters
| Name | Type | Description |
|---|---|---|
af | ActiveFunction | The source activation function data model. |
Returns
The activation function object which is created by the ActiveFunction.CreateFunction() method.
Parse(
String)将文本表达式解析为激活函数的模型
Parameters
| Name | Type | Description |
|---|---|---|
expression | String | 这个字符串表达式应该是IActivationFunction.ToString()的函数输出结果字符串 |
Returns
An ActiveFunction data model which is parsed from the given text expression.
name
The function name
Returns
The unique name of the activation function, this name should be identical with the class name of the target activation function type.
Arguments
函数对象的构造参数列表
Remarks
因为无法将字典对象进行Xml序列化, 所以在这里使用键值对集合来表示
Returns
A collection of the NamedValue objects which describes the constructor arguments of this activation function.
Item(
String)Gets the value of a specific constructor argument by its name.
Parameters
| Name | Type | Description |
|---|---|---|
name | String | The argument name, the name is case insensitive. |
Returns
The argument value in Double type; 0 will be returned when the target argument is not exists.
Function
通过这个只读属性来得到激活函数的对象模型
Returns
The IActivationFunction object instance which is created by the ActiveFunction.CreateFunction() method.
ReLU
The default text expression of the ReLU function: ReLU().
Returns
A default string expression value.
Threshold
The default text expression of the Threshold function: Threshold().
Returns
A default string expression value.
Sigmoid
The default text expression of the Sigmoid function: Sigmoid(alpha:=2.0).
Returns
A default string expression value.
BipolarSigmoid
The default text expression of the BipolarSigmoid function: BipolarSigmoid(alpha:=2.0).
Returns
A default string expression value.