This fall quarter, Stanford University will be offering online for free, the Machine Learning class that I teach. Machine learning has a typical enrollment Of 350 students in Stanford, and this is one of the most popular courses offered by the Computer Science Department. Over 200,000 people have watched my Machine Learning lectures on YouTube. Based on this popularity, this year we are doing something completely new. We are not just showing you videos, we are inviting you to sign up for actively participating and take the Stanford course. What is machine learning? You've probably used it, dozens of times a day, without even knowing it. Each time you do a web search on Google or Bing, that works so well because their machine learning software has figured out how to rank what pages. When Facebook or Apple's filter applications and recognizes your friends in your pictures. That's also machine learning. Each time you read your email and a the spam filter saves you from having to wade through tons of spam. Again that's because your computer has neurons to distinguish spam from non-spam email. So, that's machine learning. It's the science of getting computers to learn without being explicitly programmed. One of the research projects that I'm working on is getting robots to tidy up the house. How do you go about doing that? Well what you can do is have the robot watch you demonstrate the task and learn from that. The robot can then watch what objects you pick up and where to put them and try to do the same thing even when you aren't there. For me, one of the reasons I am excited about this is the AI, or artificial intelligence problem. Building truly-intelligent machines which can do just about anything that you or I can do. Many scientists think that the best way to make progress on this is through learning algorithms called neuro networks which mimic how the human brain works and I'll teach you about that too. In this class you learn about machine learning and you get to implement them yourself. This class will have homeworks and programming assignments and if you successfully complete this class, you also get from me a signed statement of accomplishments stating how you did in the class and which you can put on your resume. I hope you sign up on our website and join us this fall.