Google's RankBrain algorithm has been unleashed on the web – Tech2

Google is now using RankBrain, its machine-learning system, to process the more than 2 trillion queries sent each year through its search engine, according to Search Engine Land. This is a considerable increase from when RankBrain was first introduced in Q3 2015, when it was used for roughly 15% of search queries. The full time deployment of RankBrain will make Google Search far more intuitive for users. RankBrain "interprets" users' search terms using machine learning -- a type of artificial intelligence -- to find pages that may not have contained the exact keywords that were used in the search query. The system is able to "guess" what a user means when they type in an ambiguous search query and then pass along its assumptions to the search platform. Furthermore, it learns over time, better refining search results.