Contents

## What is RMSprop optimizer used for?

RMSProp is a very effective extension of gradient descent and is one of the preferred approaches generally used to fit deep learning neural networks. Empirically, RMSProp has been shown to be an effective and practical optimization algorithm for deep neural networks.

### What is the Adam Optimizer?

Adam is a replacement optimization algorithm for stochastic gradient descent for training deep learning models. Adam combines the best properties of the AdaGrad and RMSProp algorithms to provide an optimization algorithm that can handle sparse gradients on noisy problems.

#### What is Optimizer parameter?

optim is a package implementing various optimization algorithms. Most commonly used methods are already supported, and the interface is general enough, so that more sophisticated ones can be also easily integrated in the future.

**What is the difference between Adam and RMSprop?**

Adam is slower to change its direction, and then much slower to get back to the minimum. However, rmsprop with momentum reaches much further before it changes direction (when both use the same learning_rate).

**Which is the Optimizer that performs the best on average?**

Adaptive Moment Estimation (Adam) is the next optimizer, and probably also the optimizer that performs the best on average. Taking a big step forward from the SGD algorithm to explain Adam does require some explanation of some clever techniques from other algorithms adopted in Adam, as well as the unique approaches Adam brings.

## Which is Optimizer combines the benefits of observed gradients?

But recently researchers from Yale introduced a novel AdaBelief optimizer ( AdaBelief Optimizer: Adapting Stepsizes by the Belief in Observed Gradients) that combines many benefits of existing optimization methods:

### Which is the optimizer used to train models?

There are several such optimization algorithms, or optimizers, that exist and are used to train models – RMSprop, Stochastic Gradient Descent (SGD), Adaptive Moment Estimation (Adam) and so many more. There are two primary metrics to look at while determining the efficacy of an optimizer:

#### What are the pros and cons of optimizers?

The cons are mostly with regards to newer and better optimizers, and is perhaps hard to explain at this point. The reason for the cons will become clear, once I present the next optimizers. Simply put, the momentum algorithm helps us progress faster in the neural network, negatively or positively, to the ball analogy.