What's Machine Learning?
You can ask computer to do lots of things for you
However, computer can only do what you ask it to do
Computer can never solve the problem you can't solve
Some tasks are very complex
One day, you are asked to write a program for speech recognition
Let the machine lear by itself
Learning ≈ Looking for a Function
Play video games
What is Deep Learning?
Deep v.s. Shallow
- Speech Recognition
Deep learning usually referred to neural network based approach
Inspired from Human Brains
A Neuron for Machine
Cascading the neurons to form a neural network
Each layer is a simple function in the production line
Ups and downs of Deep Learning
Why Deep Learning?
Deeper is Better
Why Deeper is Better?
Fat + Short v.s. Thin + Tall
Hand-writing digit classification