The Wall Street Journal: Facebook using human surveys to tweak your news feed

Facebook Inc. is changing its news feed algorithm again. This time, it is guessing what posts will be “most informative” based on polling of people around the world.

As usual, Facebook isn’t explaining just how its news feed algorithm works in explicit detail. But the company did explain that it will begin ranking posts, then feeding those ranks into the existing formula. Ranking starts with a relatively old-school approach: surveys.

Every day, Facebook polls tens of thousands of people worldwide for its Feed Quality Program, according to a blog post. “We look at the stories that people tell us they find informative” on a scale of one to five — with one being defined as “really not informative” and five being “really informative,” the post explained.

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