
Reddit is a “Crowdsourced Relevancy Engine”
Written by Travis Kellerman
TLDR; A former Redditor shares how millions of anonymous comments and users show our collective human preferences
Luis Bitencourt-Emilio dropped out of Machine Learning, and formal education, in 2004. ML had an abysmal 40% accuracy rate back then. He came back with a learning vengeance to build arelevancy engine— the one Reddit uses to determine what exactly is relevant to humans these days.
I sat through his talk atBig Data Day LAlast month. He kept a steady pace, telling his story of learning alongside machines. His recent run at Reddit was the main draw of the talk. What he learned there was only possible from his own history of learning — and commanding machine platforms to do the same.

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