HardSigmoid

public class HardSigmoid

Hard sigmoid activation.

A faster approximation of the sigmoid activation.

Defined as:

  • if x < -2.5: return 0
  • if x > 2.5: return 1
  • if -2.5 <= x <= 2.5: return 0.2 * x + 0.5

For example: 

     Operand<TFloat32> input = tf.constant(
              new float[] {-3.0f,-1.0f, 0.0f,1.0f,3.0f});
     HardSigmoid<TFloat32> hardSigmoid = new HardSigmoid<>(tf);
     Operand<TFloat32> result = hardSigmoid.call(input);
     // result is [0.f , 0.3f, 0.5f, 0.7f, 1.f]

Public Constructors

HardSigmoid(Ops tf)
Creates Hard sigmoid activation.

Public Methods

Operand<T>
call(Operand<T> input)
Gets the calculation operation for the activation.

Inherited Methods

Public Constructors

public HardSigmoid (Ops tf)

Creates Hard sigmoid activation.

Parameters
tf the TensorFlow Ops

Public Methods

public Operand<T> call (Operand<T> input)

Gets the calculation operation for the activation.

Parameters
input the input tensor
Returns
  • The operand for the activation