Exploring and Detecting Self-disclosure in Multi-modal posts on Chinese Social Media

Jingbao Luo, Ming Liu, Aoli Huo, Fujing Hu, Gang Li, Wupeng Njust


Abstract
Self-disclosure can provide psychological comfort and social support, but it also carries the risk of unintentionally revealing sensitive information, leading to serious privacy concerns. Research on self-disclosure in Chinese multimodal contexts remains limited, lacking high-quality corpora, analysis, and methods for detection. This work focuses on self-disclosure behaviors on Chinese multimodal social media platforms and constructs a high-quality text-image corpus to address this critical data gap. We systematically analyze the distribution of self-disclosure types, modality preferences, and their relationship with user intent, uncovering expressive patterns unique to the Chinese multimodal context. We also fine-tune five multimodal large language models to enhance self-disclosure detection in multimodal scenarios. Among these models, the Qwen2.5-omni-7B achieved a strong performance, with a partial span F1 score of 88.2%. This study provides a novel research perspective on multimodal self-disclosure in the Chinese context.
Anthology ID:
2025.findings-emnlp.1173
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2025
Month:
November
Year:
2025
Address:
Suzhou, China
Editors:
Christos Christodoulopoulos, Tanmoy Chakraborty, Carolyn Rose, Violet Peng
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
21510–21527
Language:
URL:
https://aclanthology.org/2025.findings-emnlp.1173/
DOI:
Bibkey:
Cite (ACL):
Jingbao Luo, Ming Liu, Aoli Huo, Fujing Hu, Gang Li, and Wupeng Njust. 2025. Exploring and Detecting Self-disclosure in Multi-modal posts on Chinese Social Media. In Findings of the Association for Computational Linguistics: EMNLP 2025, pages 21510–21527, Suzhou, China. Association for Computational Linguistics.
Cite (Informal):
Exploring and Detecting Self-disclosure in Multi-modal posts on Chinese Social Media (Luo et al., Findings 2025)
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https://aclanthology.org/2025.findings-emnlp.1173.pdf
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