"In more than three centuries of science everything has changed except perhaps one thing: the love for the simple."
– Jorge Wagensberg
Music—from classical compositions to Sheena is a Punk Rocker by The Ramones, passing through the unrecognized hit from a garage band and Piazzolla's Libertango—is made from recurring patterns. The same scales, combinations of chords, riffs, motifs, and so on appear over and over again, giving rise to a wonderful sonic landscape capable of eliciting and modulating the entire range of emotions humans can experience. In a similar fashion, the universe of statistics and machine learning (ML) is built upon recurring patterns, small motifs that appear now and again. In this chapter, ...
