{ }
Update '*var' according to the Adam algorithm.
tf.raw_ops.ApplyAdam(
var,
m,
v,
beta1_power,
beta2_power,
lr,
beta1,
beta2,
epsilon,
grad,
use_locking=False,
use_nesterov=False,
name=None
)
\[\text{lr}_t := \mathrm{lr} \cdot \frac{\sqrt{1 - \beta_2^t} }{1 - \beta_1^t}\]
\[m_t := \beta_1 \cdot m_{t-1} + (1 - \beta_1) \cdot g\]
\[v_t := \beta_2 \cdot v_{t-1} + (1 - \beta_2) \cdot g^2\]
\[\text{var} := \begin{cases} \text{var} - (m_t \beta_1 + g \cdot (1 - \beta_1))\cdot\text{lr}_t/(\sqrt{v_t} + \epsilon), &\text{if use_nesterov}\\\\ \text{var} - m_t \cdot \text{lr}_t /(\sqrt{v_t} + \epsilon), &\text{otherwise} \end{cases}\]
Returns | |
---|---|
A mutable Tensor . Has the same type as var .
|