A Persuasive Approach to Combating Misinformation

Fuente: arXiv
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Main Authors: Hossain, Safwan, Mladenovic, Andjela, Chen, Yiling, Gidel, Gauthier
Format: Preprint
Published: 2023
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author Hossain, Safwan
Mladenovic, Andjela
Chen, Yiling
Gidel, Gauthier
author_facet Hossain, Safwan
Mladenovic, Andjela
Chen, Yiling
Gidel, Gauthier
contents Bayesian Persuasion is proposed as a tool for social media platforms to combat the spread of misinformation. Since platforms can use machine learning to predict the popularity and misinformation features of to-be-shared posts, and users are largely motivated to share popular content, platforms can strategically signal this informational advantage to change user beliefs and persuade them not to share misinformation. We characterize the optimal signaling scheme with imperfect predictions as a linear program and give sufficient and necessary conditions on the classifier to ensure optimal platform utility is non-decreasing and continuous. Next, this interaction is considered under a performative model, wherein platform intervention affects the user's future behaviour. The convergence and stability of optimal signaling under this performative process are fully characterized. Lastly, we experimentally validate that our approach significantly reduces misinformation in both the single round and performative setting and discuss the broader scope of using information design to combat misinformation.
format Preprint
id arxiv_https___arxiv_org_abs_2310_12065
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle A Persuasive Approach to Combating Misinformation
Hossain, Safwan
Mladenovic, Andjela
Chen, Yiling
Gidel, Gauthier
Computer Science and Game Theory
Bayesian Persuasion is proposed as a tool for social media platforms to combat the spread of misinformation. Since platforms can use machine learning to predict the popularity and misinformation features of to-be-shared posts, and users are largely motivated to share popular content, platforms can strategically signal this informational advantage to change user beliefs and persuade them not to share misinformation. We characterize the optimal signaling scheme with imperfect predictions as a linear program and give sufficient and necessary conditions on the classifier to ensure optimal platform utility is non-decreasing and continuous. Next, this interaction is considered under a performative model, wherein platform intervention affects the user's future behaviour. The convergence and stability of optimal signaling under this performative process are fully characterized. Lastly, we experimentally validate that our approach significantly reduces misinformation in both the single round and performative setting and discuss the broader scope of using information design to combat misinformation.
title A Persuasive Approach to Combating Misinformation
topic Computer Science and Game Theory
url https://arxiv.org/abs/2310.12065