Deep Learning Network for Classification

I am reading this documentation on deep learning and had a few questions.

1. What is training and validation exactly?

2. What do activation, convolutional, and fully connected layers do?

3. What is the input of this network? Is it just images? What is the output of this network?

Answer 1

[Johanna Pingel]

Here are some getting started resources:

A quick-read ebook: https://www.mathworks.com/content/dam/mathworks/tag-team/Objects/d/80879v00_Deep_Learning_ebook.pdf

and video on CNNs: https://www.mathworks.com/videos/introduction-to-deep-learning-what-are-convolutional-neural-networks--1489512765771.html

while deep learning focused on images in the past, we now have examples for image, signal, text and audio here: https://www.mathworks.com/help/deeplearning/examples.html