Link to Coursera - Deeplearning.AI Machine Learning Course: Link.

Instructor: Andrew Ng.

Course - 1 : Supervised Machine Learning : Regression and Classification

ROUGH NOTES (!)
Updated: 12/9/2026

[Welcome to machine learning!]

(These are rough notes of what the instructor mentions).

What is machine learning?

You probably use it many times a day without even knowing it.

Web search: Anytime you want to find out something like how do I make a sushi roll? You can do a web search on Google to find out. And that works so well because their machine learning software has figured out how to rank web pages.

Photo recognition: When you upload pictures to Instagram and think to yourself, I want to tag my friends so they can see their pictures. Well, these apps can recognize your friends in your pictures and label them as well. That’s also machine learning.

Movie recommendation: If you’ve just finished watching a Star Wars movie on a video streaming service and you think what other similar movies can I watch? Well, the streaming service will likely use machine learning to recommend something that you might like.

Voice to text: Each time you use voice to text on your phone to write a text message, or maybe tell your phone “Hey Siri, play a song by Rihanna”, that’s also machine learning.

Spam flagging: Each time you recieve an email titled “Congratulations! You’ve won a million dollars”. Well, maybe you’re rich, congratulations. Or more likely your email service will probably flag it as spam. That too is an application of machine learning.

Beyond consumer applications that you might use, AI is also rapidly making its way into big companies and into industrial applications.

Optimize wind power generation: For eg, I’m deeply concerned about climate change, and machine learning is already helping to optimize wind turbine power generation.

Healthcare diagnostics: Machine learning is starting to make its way into hospitals to help doctors make accurate diagnosis.

Detecting manufacturing defects: At LandingAI, I’ve been doing a lot of work, for putting computer vision into factories to help inspect if something coming off the assembly line has any defects.

That’s machine learning.

Machine learning is the science of getting computers to learn without being explicitly programmed.

In this course, you will learn about machine learning and get to implement machine learning algorithms and code yourself.

(Millions of others have taken an earlier version of this course, and that led to the founding of Coursera).

Welcome and let’s get started.