https://www.wsj.com/video/series/inside-tiktoks-highly-secretive-algorithm/investigation-how-tiktok-algorithm-figures-out-your-deepest-desires/6C0C2040-FF25-4827-8528-2BD6612E3796

  
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Inside TikTok's Highly Secretive Algorithm

July 21, 2021

Investigation: How TikTok's Algorithm Figures Out Your Deepest
Desires

The Wall Street Journal created dozens of automated accounts that
watched hundreds of thousands of videos to reveal how the social
network knows you so well

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By Wall Street JournalJul 21, 2021 12:00 pm

A Wall Street Journal investigation found that TikTok only needs one
important piece of information to figure out what you want: the
amount of time you linger over a piece of content. Every second you
hesitate or rewatch, the app is tracking you. Photo illustration:
Laura Kammermann/The Wall Street Journal

Inside TikTok's Highly Secretive Algorithm

This WSJ video investigation reveals how the video-centric social
network is so good at figuring out interests you never expressly tell
it.

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