Today we'll finish Lab 08 (due by 2359 on 19 APR but you'll get a bonus point if you turn it in by 2359 on 16 APR) . We'll also start our discussion of ethical issues in machine learning. There will be a quiz next class. It will cover ethics (as in your reading from Day 39), as well as machine learning (regression and k-nearest neighbors, training/development/testing dataset split, class imbalance problem, supervised vs unsupervised learning).