Have a question? Connect with the community at the TensorFlow Forum Visit Forum

ResourceApplyFtrl

public final class ResourceApplyFtrl

Update '*var' according to the Ftrl-proximal scheme.

grad_with_shrinkage = grad + 2 * l2_shrinkage * var accum_new = accum + grad_with_shrinkage * grad_with_shrinkage linear += grad_with_shrinkage + (accum_new^(-lr_power) - accum^(-lr_power)) / lr * var quadratic = 1.0 / (accum_new^(lr_power) * lr) + 2 * l2 var = (sign(linear) * l1 - linear) / quadratic if |linear| > l1 else 0.0 accum = accum_new

Nested Classes

class ResourceApplyFtrl.Options Optional attributes for ResourceApplyFtrl

Constants

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

Public Methods

static <T extends TType > ResourceApplyFtrl
create ( Scope scope, Operand <?> var, Operand <?> accum, Operand <?> linear, Operand <T> grad, Operand <T> lr, Operand <T> l1, Operand <T> l2, Operand <T> l2Shrinkage, Operand <T> lrPower, Options... options)
Factory method to create a class wrapping a new ResourceApplyFtrl operation.
static ResourceApplyFtrl.Options
multiplyLinearByLr (Boolean multiplyLinearByLr)
static ResourceApplyFtrl.Options
useLocking (Boolean useLocking)

Inherited Methods

Constants

public static final String OP_NAME

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

Constant Value: "ResourceApplyFtrlV2"

Public Methods

public static ResourceApplyFtrl create ( Scope scope, Operand <?> var, Operand <?> accum, Operand <?> linear, Operand <T> grad, Operand <T> lr, Operand <T> l1, Operand <T> l2, Operand <T> l2Shrinkage, Operand <T> lrPower, Options... options)

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

Parameters
scope current scope
var Should be from a Variable().
accum Should be from a Variable().
linear Should be from a Variable().
grad The gradient.
lr Scaling factor. Must be a scalar.
l1 L1 regularization. Must be a scalar.
l2 L2 shrinkage regularization. Must be a scalar.
lrPower Scaling factor. Must be a scalar.
options carries optional attributes values
Returns
  • a new instance of ResourceApplyFtrl

public static ResourceApplyFtrl.Options multiplyLinearByLr (Boolean multiplyLinearByLr)

public static ResourceApplyFtrl.Options useLocking (Boolean useLocking)

Parameters
useLocking If `True`, updating of the var and accum tensors will be protected by a lock; otherwise the behavior is undefined, but may exhibit less contention.