GRUBlockCell

public final class GRUBlockCell

Computes the GRU cell forward propagation for 1 time step.

Args x: Input to the GRU cell. h_prev: State input from the previous GRU cell. w_ru: Weight matrix for the reset and update gate. w_c: Weight matrix for the cell connection gate. b_ru: Bias vector for the reset and update gate. b_c: Bias vector for the cell connection gate.

Returns r: Output of the reset gate. u: Output of the update gate. c: Output of the cell connection gate. h: Current state of the GRU cell.

Note on notation of the variables:

Concatenation of a and b is represented by a_b Element-wise dot product of a and b is represented by ab Element-wise dot product is represented by \circ Matrix multiplication is represented by *

Biases are initialized with : `b_ru` - constant_initializer(1.0) `b_c` - constant_initializer(0.0)

This kernel op implements the following mathematical equations:

x_h_prev = [x, h_prev]
 
 [r_bar u_bar] = x_h_prev * w_ru + b_ru
 
 r = sigmoid(r_bar)
 u = sigmoid(u_bar)
 
 h_prevr = h_prev \circ r
 
 x_h_prevr = [x h_prevr]
 
 c_bar = x_h_prevr * w_c + b_c
 c = tanh(c_bar)
 
 h = (1-u) \circ c + u \circ h_prev
 

Constants

String

OP_NAME

The name of this op, as known by TensorFlow core engine

Public Methods

Output<T>	c()
static <T extends TNumber> GRUBlockCell<T>	create(Scope scope, Operand<T> x, Operand<T> hPrev, Operand<T> wRu, Operand<T> wC, Operand<T> bRu, Operand<T> bC) Factory method to create a class wrapping a new GRUBlockCell operation.
Output<T>	h()
Output<T>	r()
Output<T>	u()

Inherited Methods

From class org.tensorflow.op.RawOp

final boolean	equals(Object obj)
final int	hashCode()
Operation	op() Return this unit of computation as a single Operation.
final String	toString()

From class java.lang.Object

boolean	equals(Object arg0)
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

From interface org.tensorflow.op.Op

abstract ExecutionEnvironment	env() Return the execution environment this op was created in.
abstract Operation	op() Return this unit of computation as a single Operation.

Constants

public static final String OP_NAME

The name of this op, as known by TensorFlow core engine

Constant Value: "GRUBlockCell"

Public Methods

public Output<T> c ()

public static GRUBlockCell<T> create (Scope scope, Operand<T> x, Operand<T> hPrev, Operand<T> wRu, Operand<T> wC, Operand<T> bRu, Operand<T> bC)

Factory method to create a class wrapping a new GRUBlockCell operation.

Parameters

scope	current scope

Returns

• a new instance of GRUBlockCell

public Output<T> h ()

public Output<T> r ()

public Output<T> u ()