Why is THAT in my News Feed? Facebook explains

Facebook offered a deep dive into its its News Feed ranking algorithm on Tuesday, expounding on why it moves up old stories and how it picks which stories it thinks you want to see.

Lars Backstrom, the engineering manager in charge of News Feed ranking, explained how Facebook sorts through the "tens of thousands" of potential posts users put on Facebook each day. While there is a median of 1,500 potential stories that a user can see daily, Facebook inserts about 300 based on an algorithm that guesses how interested you will be in a post by factoring users' reactions to previous posts and the users. Each post is given a score and placed depending on that score. The more likes and comments people make, the more data Facebook has to work with...

Read the full story here... Source: CNET