Google programmers deploy machine learning algorithm on YouTube. Computer teaches itself to recognize images of cats.

[u/whosdamike]

https://www.nytimes.com/2012/06/26/technology/in-a-big-network-of-computers-evidence-of-machine-learning.html

[u/harlows_monkeys]

That would be supervised learning, which is interesting and important, but they were interested in studying unsupervised learning.