Function adam_update_numpy

tensorflow/python/training/adam_test.py:37–52

(param,
                      g_t,
                      t,
                      m,
                      v,
                      alpha=0.001,
                      beta1=0.9,
                      beta2=0.999,
                      epsilon=1e-8)

def adam_update_numpy(param,
                      g_t,
                      t,
                      m,
                      v,
                      alpha=0.001,
                      beta1=0.9,
                      beta2=0.999,
                      epsilon=1e-8):
  alpha_t = alpha * np.sqrt(1 - beta2**t) / (1 - beta1**t)

  m_t = beta1 * m + (1 - beta1) * g_t
  v_t = beta2 * v + (1 - beta2) * g_t * g_t

  param_t = param - alpha_t * m_t / (np.sqrt(v_t) + epsilon)
  return param_t, m_t, v_t


class AdamOptimizerTest(test.TestCase):