Bing Confirms They Let Machine Learning Set Ranking Signal Weights
https://www.facebook.comFabrice Canel from Bing confirms that at Bing they pass all their ranking signals to machine learning algorithms and it decides on the weights for those ranking signals. Jump to the 35-minute mark to jump to that bit of info.
Obviously, their search team can look into whats those strengths are but they say that it’s something that is continually tweaked by the ML algorithms.
They also go on to discuss other things like how Bing can understand primary content on a page, hidden content, content in tabs, etc and how they can play a part in ranking and discovery.