According to a blog post from Facebook software engineers Cheng Zhang and Si Chen, from the research using a representative sample of people, they are able to better understand which stories people would be interested even if they choose not to click, like or comment on them - and use this information to make ranking changes.

The changes in Facebook's algorithm come from a survey Facebook conducted recently. The participants were asked to suggest how Facebook can improve the content they get in their News Feed.

"We are making an update to News Feed that combines these two signals. News Feed will begin to look at both the probability that you would want to see the story at the top of your feed and the probability that you will like, comment on, click or share a story," the post added.

"We will rank stories higher in feed which we think people might take action on, and which people might want to see near the top of their News Feed," the Facebook team noted.

The impact of these changes on a story's distribution will vary depending on the composition of the audience and posting activity.

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