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News/Hijacking online reviews: sparse manipulation and behavioral buffering in popularity-biased rating systems
arxiv
PublishedApril 17, 2026 at 4:00 AM
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Hijacking online reviews: sparse manipulation and behavioral buffering in popularity-biased rating systems

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arXiv:2604.13049v1 Announce Type: cross Abstract: Online reviews and recommendation systems help users navigate overwhelming choice, but they are vulnerable to self-reinforcing distortions. This paper examines how a single malicious reviewer can exploit popularity-biased rating dynamics and whether

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