科学 Science-2023-07-28 高清英语原版 PDF电子版 网盘下载-八点一刻

We investigated the effects of Facebook’s and Instagram’s feed algorithms during the 2020 US election.
We assigned a sample of consenting users to reverse-chronologically-ordered feeds instead of the
default algorithms. Moving users out of algorithmic feeds substantially decreased the time they spent on
the platforms and their activity. The chronological feed also affected exposure to content: The amount
of political and untrustworthy content they saw increased on both platforms, the amount of content
classified as uncivil or containing slur words they saw decreased on Facebook, and the amount of
content from moderate friends and sources with ideologically mixed audiences they saw increased on
Facebook. Despite these substantial changes in users’ on-platform experience, the chronological feed
did not significantly alter levels of issue polarization, affective polarization, political knowledge, or
other key attitudes during the 3-month study period.

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科学 Science-2023-07-28 高清英语原版 PDF电子版 网盘下载-八点一刻

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