论文标题

在线社交媒体审计的数学框架

Mathematical Framework for Online Social Media Auditing

论文作者

Huleihel, Wasim, Refael, Yehonathan

论文摘要

社交媒体平台(SMP)利用算法过滤(AF)作为选择构成用户提要的内容的一种手段,目的是最大程度地提高其奖励。与自然/公平内容选择相比,选择性选择要在用户供稿上显示的内容可能会产生一定程度的影响,无论是对用户决策制定的影响。正如我们在过去十年中所见证的那样,算法过滤可能会引起有害的副作用,从偏见的个人决策到塑造整个社会的决策,例如,将用户的注意力转移到了是否获得COVID-19疫苗或诱使公众选择总统候选人的情况下。由于官僚主义,法律事务和财务考虑,政府不断地试图调节房颤的不利影响通常很复杂。另一方面,SMP试图监视自己的算法活动,以避免因超过允许阈值而被罚款。在本文中,我们可以数学上对该框架进行数学形式化,并利用它来构建数据驱动的统计审核程序,以调节AF随着时间的推移而偏转用户信念,并保证样本复杂性。当局可以用作外部监管机构或SMP进行自我审计,可以使用这种最先进的算法。

Social media platforms (SMPs) leverage algorithmic filtering (AF) as a means of selecting the content that constitutes a user's feed with the aim of maximizing their rewards. Selectively choosing the contents to be shown on the user's feed may yield a certain extent of influence, either minor or major, on the user's decision-making, compared to what it would have been under a natural/fair content selection. As we have witnessed over the past decade, algorithmic filtering can cause detrimental side effects, ranging from biasing individual decisions to shaping those of society as a whole, for example, diverting users' attention from whether to get the COVID-19 vaccine or inducing the public to choose a presidential candidate. The government's constant attempts to regulate the adverse effects of AF are often complicated, due to bureaucracy, legal affairs, and financial considerations. On the other hand SMPs seek to monitor their own algorithmic activities to avoid being fined for exceeding the allowable threshold. In this paper, we mathematically formalize this framework and utilize it to construct a data-driven statistical auditing procedure to regulate AF from deflecting users' beliefs over time, along with sample complexity guarantees. This state-of-the-art algorithm can be used either by authorities acting as external regulators or by SMPs for self-auditing.

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