Facebook claims one indication that a publisher may be posting misleading items is if people keep hiding its posts.
"We anticipate that most Pages won’t see any significant changes to their distribution in News Feed," writes Facebook in its blog post.
"Some Pages might see a small increase in referral traffic or outbound clicks, and some Pages might see minor decreases.
Pages should continue to post stories that are relevant to their audiences." As a result of the changes, "authentic" content could rank higher in your feed.
If you liked a lot of stories about a certain celeb in the past, for instance, your News Feed will deem reports about that celeb informative and will make sure you see them in your stream.
At the same time, if you're inclined to like photos and Live videos, then the social network will put those near the top.
"[I]f you tend to like photos from your sister," Facebook VP Adam Mosseri said, "we'll start putting her posts closer to the top of your feed so you won't miss what she posted while you were away." On the other hand, it will assume that you're not as thrilled to hear from people whose posts you hide all the time.
Since you probably follow various Pages, as well, such as those owned by businesses, publications or celebrities, the revamped News Feed also ranks their posts based on how informative and entertaining they are.
As you'd expect, your feed will prioritize posts by people whom you've chosen to "see first," and those whose posts you're inclined to Like or comment on.
The implementation process saw Facebook categorise Pages it identified as posting spam or trying to directly ask users for likes, comments and shares in order to boost content.
The company used this data to train a model that continuously detects whether posts from other Pages are likely to be authentic.
The move pre-empted the company’s broader strategy to tackle fake news, kicked off in late 2016.
On Tuesday, Facebook announced it is adding signals to its News Feed algorithm to identify "authentic" posts from people and pages.