| Loved the article, and also the shoutout to Strang's lectures. I agree with the order, the Gaussian should come later I almost closed the article - glad I kept scrolling out of curiosity. Also I felt like I had been primed to think about nickles and pennies as variables rather than coefficients due to the color scheme, so when I got to the food section I naturally expected to see the column picture first. When I encountered the carb/protein matrix instead, I perceived it in the form: [A][x], where the x is [milk bread].T so I naturally perceived the matrix as a transformation and saw the food items as variables about to be "passed through" the matrix. But another part of my brain immediately recognized the matrix as a dataset of feature vectors, [[milk].T [bread].T], yearning for y = f(W @ x). I was never able to resolve this tension in my mind... |