快猫短视频

NOW they really are unhappy. A Facebook researcher has apologised after work on how emotions transmit through the social network caused widespread indignation. For a week in 2012, Adam Kramer and his team hid status updates from nearly 700,000 people鈥檚 newsfeeds on the basis of emotional content and measured whether this affected posts. There was a small but statistically significant change (PNAS, ).

快猫短视频s and other critics claim Facebook is guilty of an ethical breach. But Facebook claims users consent to such experiments when they join, even though most people don鈥檛 read the lengthy terms of service.

Kramer has apologised on his Facebook profile, writing: 鈥淚n hindsight, the research benefits of the paper may not have justified all of this anxiety.鈥�

Not everyone agrees. Tal Yarkoni of the University of Texas at Austin points out that Facebook, like Google and Amazon, constantly manipulates everyone鈥檚 online experience.

This article appeared in print under the headline 鈥淔acebook fury鈥�