ISupportSdcaLoss.DualUpdate(Single, Single, Single, Single, Int32) 方法

定义

命名空间:

Microsoft.ML.Trainers

程序集:

Microsoft.ML.Data.dll

包:

Microsoft.ML v3.0.1

在 SDCA 中计算双更新 (\Delta\alpha_i)

• alpha：指定实例上的双变量
• lambdaN：L2 const x 实例数
• 缓存固定，由上述方法提示

public float DualUpdate (float output, float label, float dual, float invariant, int maxNumThreads);

abstract member DualUpdate : single * single * single * single * int -> single

Public Function DualUpdate (output As Single, label As Single, dual As Single, invariant As Single, maxNumThreads As Integer) As Single

参数

output

Single

label

Single

dual

Single

invariant

Single

maxNumThreads

Int32

返回

Single