Question 14
Consider the following optimization algorithms used for training neural networks: SGD with Momentum• RMSProp• Adam• Which of the following statements is/are correct?
SGD with Momentum accumulates an exponentially decaying moving average of past gradients to accelerate convergence along consistent directions.
Momentum methods adapt individual learning rates for each parameter based on past squared gradients.
RMSProp maintains a running average of squared gradients to scale learning rate.
Adam combines ideas from Momentum and RMSProp by using both first and second moment estimates of gradients.
Adam requires computing second-order derivatives of the loss function.
Adaptive methods such as RMSProp and Adam can use different effective learning rates for different parameters.