Tianjiao Xu

Tianjiao Xu | 徐天娇

Hi there! Currently, I am a Ph.D. candidate in Computer Technology at the School of Computer Science and Technology, Shandong University, China, advised by Prof. Tian Gan. My research focuses on Multimedia Computing, with particular interests in social computing and risk communication.

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Automn 2024 🍁, Shanghai

News

[Jul 2025] 1 paper (NormMediat) is accepted by ACM MM 2025.
[May 2025] 1 paper (MMKG-MMT) is accepted by IEEE TMM 2025.
[Apr 2025] 1 paper (AgentMCD) is accepted by IJCAI 2025.
[Jul 2024] 1 paper (MMCD) is accepted by ACM MM 2024.

Education
	Shandong University, Qingdao, China Ph.D. Candidate in Computer Technology School of Computer Science and Technology Sep. 2023 - Jul. 2027 Advisor: Prof. Tian Gan
	University of Macau, Macau, China Master of Science in E-Commerce Technology Faculty of Science and Technology Sep. 2020 - Jul. 2023 Advisor: Prof. Derek F. Wong
	Guangdong University of Foreign Studies, Guangzhou, China Bachelor in E-Commerce School of Cisco Information Technology Sep. 2016 - Jul. 2020 Advisor: Prof. Shihong Chen

Selected Publications

Enhancing Democratic Mediation through Norm-Awareness in Generative Agent Societies

Tianjiao Xu, Hao Fu, Suiyang Zhang, Jianhua Yin*, Tian Gan*, Liqiang Nie

ACM MM, 2025 (CCF A)

[Paperlink] [Code]

Norm Mediat simulates democratic mediation by integrating normative reasoning with dynamic multimodal conflict modeling and norm-aware iterative mediation, offering a comprehensive framework and benchmark dataset for conflict resolution studies.

Generative Agents for Multimodal Controversy Detection

Tianjiao Xu, Jinfei Gao, Keyi Kong, Tian Gan*, Jianhua Yin, Liqiang Nie

IJCAI, 2025 (CCF A)

[Paperlink] [Code]

AgentMCD leverages LLM-based multi-aspect reasoning and multi-agent simulation to enhance multimodal controversy detection with superior performance and explainability.

A Chinese Multimodal Social Video Dataset for Controversy Detection

Tianjiao Xu, Aoxuan Chen, Yuxi Zhao, Jinfei Gao, Tian Gan*

ACM MM, 2024 (CCF A)

[Paperlink] [Code]

We construct a large-scale Chinese Multimodal Controversial Dataset (MMCD) and propose Multi-view Controversy Detection (MVCD), a framework that models controversies from multiple perspectives.

Exploiting Multimodal Knowledge Graph for Multimodal Machine Translation

Tianjiao Xu, Xuebo Liu*, Derek F. Wong*, Yue Zhang, Lidia S. Chao, Min Zhang, Tian Gan

IEEE Transactions on Multimedia (TMM), 2025 (SCI Q1, CCF B)

[Paperlink] [Code]

We propose a multimodal machine translation framework that incorporates Multimodal Knowledge Graphs to augment parallel corpora with synthetic sentence–image pairs.

Intellectual Property

A Multimodal Multi-View Controversy Detection Method and System

Tian Gan, Tianjiao Xu, Aoxuan Chen, Jinfei Gao

CN118887028A (In Substantive Examination Stage)

[Patent Link]

Developed a multimodal and multiview controversy detection framework for social media. The method integrates video and text features, models semantic–structural relations between videos and comments via context graphs, and captures inconsistencies through sentiment–semantic matrices, significantly improving detection accuracy.

Selected Honors & Scholarships

SIGMM Student Travel Grant 2024
First-Class Scholarship (Top 2%), awarded annually in 2017–2020 and 2023–2024
Outstanding University Student Medal (Top 10 in School), awarded by GDUFS
Chinese Collegiate Computing Competition (4C) — Second Prize (once), Third Prize (three times)
National College Contest in Big Data Analysis and Mining — Third Prize
Global Management Challenge (GMC), Macau Region — Fourth Prize

Academic Services

Conference Reviewer: ACM MM (CCF A)
Journal Reviewer: IEEE Transactions on Image Processing (SCI Q1), Information Sciences (SCI Q1), IEEE Transactions on Computational Social Systems (SCI Q3)