Social media platforms newsfeeds are generated by AI algorithms, which select and order posts based on user data. However, users are often unaware of what data is collected and employed for this aim, neither can they control it. To open up discussions on what data users are willing to feed the newsfeed algorithm with, we created the Facebook Data Shield, a human-size interactive installation where users can see and control what type of data is collected. By pressing buttons, data categories and/or data variables can be (de)activated. An outer rim with lights gives feedback to users about the level of personalization of the resulting newsfeed. We performed a preliminary study to get insights into what data users are willing to share, their preferred level of control, and the effect of such an installation on users' awareness. Based on our findings, we discuss implications for design and future work.

翻译：社交媒体平台的新闻动态由人工智能算法生成，这些算法基于用户数据对帖子进行排序和选择。然而，用户通常不知道哪些数据被收集并用于此目的，也无法控制这些数据。为了开启关于用户愿意向新闻动态算法提供哪些数据的讨论，我们创建了Facebook数据保护盾，这是一个真人尺寸的互动装置，用户可以在其中查看并控制被收集的数据类型。通过按下按钮，可以启用或停用数据类别和/或数据变量。装置外缘的灯光会向用户反馈由此生成的新闻动态的个性化程度。我们进行了一项初步研究，以了解用户愿意分享哪些数据、他们偏好的控制级别以及此类装置对用户认知的影响。基于研究结果，我们探讨了对设计及未来工作的启示。