Welcome to Classification. This is the third class in our machine learning specialization. I'm Carlos Guestrin and together we're going to go through the basics to the fundamentals to actually building real world classifiers. It's going to be fun, exciting, bit of work, maybe tons of work, but you'll come out the other side being really an expert, and a lot of the core techniques that you need to build classifiers in the real world. This course is the third course over six course Specialization Machine Learning. In the first one we outlined the basics of machine learning using the techniques as input output black boxes. From the second course onward, we're actually understanding the depths of each algorithm and implementing them from scratch ourselves. The first course on regression was really fun and exciting and I'm really glad of that. I'm leading this course on classification which will be followed by a course on clustering, one on recommender systems, and finally our capstone project where your going to use deep learning and text analytics to build a whole new kind of product recommender and apply it as a real time service.