Want to know how Facebook decides what's trending? Read this | HT Tech

Want to know how Facebook decides what's trending? Read this

Here's what trending on my Facebook right now: Arun Jaitley, because he's inaugurating a bank in Kolkata; the iPhone 6 Plus for offering replacements on faulty cameras, and Ajit Doval because of the simmering India-Pakistan tensions. Ever wonder how Facebook decides what's trending, though?

By: HT CORRESPONDENT
| Updated on: Aug 24 2015, 12:27 IST
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A-Facebook-employee-walks-past-a-sign-at-Facebook-headquarters-in-Menlo-Park-Photo-AP

Here's what trending on my Facebook right now: Arun Jaitley, because he's inaugurating a bank in Kolkata; the iPhone 6 Plus for offering replacements on faulty cameras, and Ajit Doval because of the simmering India-Pakistan tensions. Ever wonder how Facebook decides what's trending, though?

The social networking site has actually devised different algorithms for it. Apart from things like where you live and the pages you follow, it primarily looks for two broader signals — Topics that are being mentioned a lot and topics that suddenly seen an increase in mentions.

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For example, singer Justin Bieber is mentioned often on Facebook. So the total volume of mentions is always high and is not a good indicator of whether or not he is part of a trending topic. So, Facebook would look for a hike in mentions relative to the normal prattle around Bieber.

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"This means that things that trend are not just the most highly mentioned people or topics, they have to be tied to some kind of relevant event," the report said.

Once a topic is identified as trending, it is approved by a human controller, who also writes a short description for the story. These people don't get to pick what Facebook adds to the trending section. "That's done automatically by the algorithm. They just get to pick the headline," the report added.

(With inputs from agencies)

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First Published Date: 24 Aug, 11:10 IST
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