tensorflow :: ops :: TerapkanFtrl
#include <training_ops.h>
Perbarui '* var' sesuai dengan skema Ftrl-proksimal.
Ringkasan
akum_new = akum + grad * grad linier + = grad + (akum_new ^ (- lr_power) - acc ^ (- lr_power)) / lr * var kuadrat = 1.0 / (akum_ ^ (lr_power) * lr) + 2 * l2 var = (tanda (linier) * l1 - linier) / kuadrat jika | linier | > l1 lain 0,0 akum = akum_new
Argumen:
- scope: Objek Scope
- var: Harus dari Variabel ().
- akumulasi: Harus dari Variabel ().
- linear: Harus dari Variabel ().
- grad: Gradien.
- lr: Faktor penskalaan. Harus skalar.
- l1: regularisasi L1. Harus skalar.
- l2: regularisasi L2. Harus skalar.
- lr_power: Faktor penskalaan. Harus skalar.
Atribut opsional (lihat Attrs
):
- use_locking: Jika
True
, pembaruan tensor var dan akumulator akan dilindungi oleh kunci; jika tidak, perilakunya tidak ditentukan, tetapi mungkin menunjukkan lebih sedikit pertentangan.
Pengembalian:
-
Output
: Sama seperti "var".
Pembangun dan Penghancur | |
---|---|
ApplyFtrl (const :: tensorflow::Scope & scope, :: tensorflow::Input var, :: tensorflow::Input accum, :: tensorflow::Input linear, :: tensorflow::Input grad, :: tensorflow::Input lr, :: tensorflow::Input l1, :: tensorflow::Input l2, :: tensorflow::Input lr_power) | |
ApplyFtrl (const :: tensorflow::Scope & scope, :: tensorflow::Input var, :: tensorflow::Input accum, :: tensorflow::Input linear, :: tensorflow::Input grad, :: tensorflow::Input lr, :: tensorflow::Input l1, :: tensorflow::Input l2, :: tensorflow::Input lr_power, const ApplyFtrl::Attrs & attrs) |
Atribut publik | |
---|---|
operation | |
out |
Fungsi publik | |
---|---|
node () const | ::tensorflow::Node * |
operator::tensorflow::Input () const | |
operator::tensorflow::Output () const |
Fungsi statis publik | |
---|---|
UseLocking (bool x) |
Structs | |
---|---|
tensorflow :: ops :: ApplyFtrl :: Attrs |
Atribut publik
operasi
Operation operation
di luar
::tensorflow::Output out
Fungsi publik
TerapkanFtrl
ApplyFtrl( const ::tensorflow::Scope & scope, ::tensorflow::Input var, ::tensorflow::Input accum, ::tensorflow::Input linear, ::tensorflow::Input grad, ::tensorflow::Input lr, ::tensorflow::Input l1, ::tensorflow::Input l2, ::tensorflow::Input lr_power )
TerapkanFtrl
ApplyFtrl( const ::tensorflow::Scope & scope, ::tensorflow::Input var, ::tensorflow::Input accum, ::tensorflow::Input linear, ::tensorflow::Input grad, ::tensorflow::Input lr, ::tensorflow::Input l1, ::tensorflow::Input l2, ::tensorflow::Input lr_power, const ApplyFtrl::Attrs & attrs )
simpul
::tensorflow::Node * node() const
operator :: tensorflow :: Input
operator::tensorflow::Input() const
operator :: tensorflow :: Keluaran
operator::tensorflow::Output() const
Fungsi statis publik
UseLocking
Attrs UseLocking( bool x )