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Main Authors: Yu, Chenghui, Wang, Hongwei, Chen, Junwen, Wang, Zixuan, Deng, Bingfeng, Hao, Zhuolin, Xiong, Hongyu, Song, Yang
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2601.11634
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author Yu, Chenghui
Wang, Hongwei
Chen, Junwen
Wang, Zixuan
Deng, Bingfeng
Hao, Zhuolin
Xiong, Hongyu
Song, Yang
author_facet Yu, Chenghui
Wang, Hongwei
Chen, Junwen
Wang, Zixuan
Deng, Bingfeng
Hao, Zhuolin
Xiong, Hongyu
Song, Yang
contents Trends on short-video platforms evolve at a rapid pace, with new content issues emerging every day that fall outside the coverage of existing annotation policies. However, traditional human-driven discovery of emerging issues is too slow, which leads to delayed updates of annotation policies and poses a major challenge for effective content governance. In this work, we propose an automatic issue discovery method based on multimodal LLM agents. Our approach automatically recalls short videos containing potential new issues and applies a two-stage clustering strategy to group them, with each cluster corresponding to a newly discovered issue. The agent then generates updated annotation policies from these clusters, thereby extending coverage to these emerging issues. Our agent has been deployed in the real system. Both offline and online experiments demonstrate that this agent-based method significantly improves the effectiveness of emerging-issue discovery (with an F1 score improvement of over 20%) and enhances the performance of subsequent issue governance (reducing the view count of problematic videos by approximately 15%). More importantly, compared to manual issue discovery, it greatly reduces time costs and substantially accelerates the iteration of annotation policies.
format Preprint
id arxiv_https___arxiv_org_abs_2601_11634
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle When Rules Fall Short: Agent-Driven Discovery of Emerging Content Issues in Short Video Platforms
Yu, Chenghui
Wang, Hongwei
Chen, Junwen
Wang, Zixuan
Deng, Bingfeng
Hao, Zhuolin
Xiong, Hongyu
Song, Yang
Computer Vision and Pattern Recognition
Trends on short-video platforms evolve at a rapid pace, with new content issues emerging every day that fall outside the coverage of existing annotation policies. However, traditional human-driven discovery of emerging issues is too slow, which leads to delayed updates of annotation policies and poses a major challenge for effective content governance. In this work, we propose an automatic issue discovery method based on multimodal LLM agents. Our approach automatically recalls short videos containing potential new issues and applies a two-stage clustering strategy to group them, with each cluster corresponding to a newly discovered issue. The agent then generates updated annotation policies from these clusters, thereby extending coverage to these emerging issues. Our agent has been deployed in the real system. Both offline and online experiments demonstrate that this agent-based method significantly improves the effectiveness of emerging-issue discovery (with an F1 score improvement of over 20%) and enhances the performance of subsequent issue governance (reducing the view count of problematic videos by approximately 15%). More importantly, compared to manual issue discovery, it greatly reduces time costs and substantially accelerates the iteration of annotation policies.
title When Rules Fall Short: Agent-Driven Discovery of Emerging Content Issues in Short Video Platforms
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2601.11634