New paper w @BDRoads, "Learning as the Unsupervised Alignment of Conceptual Systems". Supervised learning tasks can be solved by purely unsupervised means by exploiting correspondences across systems (e.g., text, images, etc.). 1/5 nature.com/articles/s4225… How can supervised tasks be solved without supervision? Concepts have unique signatures that hold across unsupervised systems. E.g., The words pen and pencil pattern similarly in text corpora and are also visually similar. Likewise, both are different to lions, cars, etc. 2/5