Neural Networks with multiple hidden layers (generally more than two) and/or nodes are generally categorized as deep learning. Several contemporary advances in machine learning, such as autonomously driving cars, are a direct result of the use of deep learning for practical day-to-day tasks.

There are various deep learning frameworks/packages, and some notable ones include:

• TensorFlow
• cuDNN
• Theano
• Torch
• PaddlePaddle, from Baidu