ResourceApplyAdamWithAmsgrad

อัปเดต '*var' ตามอัลกอริทึมของ Adam

$$\text{lr}_t := \mathrm{learning_rate} * \sqrt{1 - \beta_2^t} / (1 - \beta_1^t)$$$$m_t := \beta_1 * m_{t-1} + (1 - \beta_1) * g$$$$v_t := \beta_2 * v_{t-1} + (1 - \beta_2) * g * g$$$$\hat{v}_t := max{\hat{v}_{t-1}, v_t}$$$$\text{variable} := \text{variable} - \text{lr}_t * m_t / (\sqrt{\hat{v}_t} + \epsilon)$$