Key Lessons for ML [Domingos, 2012] ● Learning = Representation + Evaluation + Optimization ● It’s generalization that counts: generalize beyond training examples ● Data alone is not enough: “no free lunch” theorem--No learner can beat random guessing over all possible functions to be learned ● Intuition fails in high dimensions: “curse of dimensionality” ● More data beats a cleverer algorithm: ..