From a different nytimes Article this week:

'Arguably the biggest success, Google Brain, is the one people know the least about. It was an artificial intelligence effort that was spun back into core Google in 2012 and is now embedded in products like voice search and the Google Photos app, in which users can search their albums for images like “dogs” or “mountains.”'

http://www.nytimes.com/2016/07/24/technology/they-promised-u...