What is PyTorch, and why is it popular?**

PyTorch is an open-source deep learning framework developed by Meta.

It is widely used in research and production because of its flexibility and dynamic computation graph.

Advantages:

• Easy to learn

• Python-friendly

• Excellent debugging support

• Strong GPU acceleration

• Large research community

Many state-of-the-art AI models are developed using PyTorch.

120. What is Keras, and how does it simplify Deep Learning?

Keras is a high-level deep learning API that runs on top of TensorFlow.

It simplifies building neural networks by providing easy-to-use interfaces for creating, training, and evaluating models.

Benefits:

• Simple and beginner-friendly

• Less code

• Fast prototyping

• Supports CNNs, RNNs, and Transformers

• Integrated with TensorFlow

Keras is an excellent choice for beginners learning Deep Learning.

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