Dynamics of Algorithmic Content Amplification on TikTok

Fuente: arXiv
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Hauptverfasser: Baumann, Fabian, Arora, Nipun, Rahwan, Iyad, Czaplicka, Agnieszka
Format: Preprint
Veröffentlicht: 2025
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author Baumann, Fabian
Arora, Nipun
Rahwan, Iyad
Czaplicka, Agnieszka
author_facet Baumann, Fabian
Arora, Nipun
Rahwan, Iyad
Czaplicka, Agnieszka
contents Intelligent algorithms increasingly shape the content we encounter and engage with online. TikTok's For You feed exemplifies extreme algorithm-driven curation, tailoring the stream of video content almost exclusively based on users' explicit and implicit interactions with the platform. Despite growing attention, the dynamics of content amplification on TikTok remain largely unquantified. How quickly, and to what extent, does TikTok's algorithm amplify content aligned with users' interests? To address these questions, we conduct a sock-puppet audit, deploying bots with different interests to engage with TikTok's "For You" feed. Our findings reveal that content aligned with the bots' interests undergoes strong amplification, with rapid reinforcement typically occurring within the first 200 videos watched. While amplification is consistently observed across all interests, its intensity varies by interest, indicating the emergence of topic-specific biases. Time series analyses and Markov models uncover distinct phases of recommendation dynamics, including persistent content reinforcement and a gradual decline in content diversity over time. Although TikTok's algorithm preserves some content diversity, we find a strong negative correlation between amplification and exploration: as the amplification of interest-aligned content increases, engagement with unseen hashtags declines. These findings contribute to discussions on socio-algorithmic feedback loops in the digital age and the trade-offs between personalization and content diversity.
format Preprint
id arxiv_https___arxiv_org_abs_2503_20231
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Dynamics of Algorithmic Content Amplification on TikTok
Baumann, Fabian
Arora, Nipun
Rahwan, Iyad
Czaplicka, Agnieszka
Physics and Society
Artificial Intelligence
Social and Information Networks
Intelligent algorithms increasingly shape the content we encounter and engage with online. TikTok's For You feed exemplifies extreme algorithm-driven curation, tailoring the stream of video content almost exclusively based on users' explicit and implicit interactions with the platform. Despite growing attention, the dynamics of content amplification on TikTok remain largely unquantified. How quickly, and to what extent, does TikTok's algorithm amplify content aligned with users' interests? To address these questions, we conduct a sock-puppet audit, deploying bots with different interests to engage with TikTok's "For You" feed. Our findings reveal that content aligned with the bots' interests undergoes strong amplification, with rapid reinforcement typically occurring within the first 200 videos watched. While amplification is consistently observed across all interests, its intensity varies by interest, indicating the emergence of topic-specific biases. Time series analyses and Markov models uncover distinct phases of recommendation dynamics, including persistent content reinforcement and a gradual decline in content diversity over time. Although TikTok's algorithm preserves some content diversity, we find a strong negative correlation between amplification and exploration: as the amplification of interest-aligned content increases, engagement with unseen hashtags declines. These findings contribute to discussions on socio-algorithmic feedback loops in the digital age and the trade-offs between personalization and content diversity.
title Dynamics of Algorithmic Content Amplification on TikTok
topic Physics and Society
Artificial Intelligence
Social and Information Networks
url https://arxiv.org/abs/2503.20231