I am currently a second-year Ph.D. student at the School of Computer Science and Technology, Dalian University of Technology, supervised by Prof. Hongfei Lin. My research interests lie in natural language processing, text mining, and AI security. I am particularly interested in detecting hate speech and hateful memes prevalent on social platforms by developing novel deep learning methods, specifically large language models, for semantic analysis. I also have a fortunate opportunity to work with Prof. Roy Ka-Wei Lee at Singapore University of Technology and Design.

If you are interested in my work, please contact me via dut_ljy@foxmail.com.

🔥 News

• 2025.05:  🎉🎉 Our two papers were accepted by ACL 2025 (2 findings)!

📝 Publications

Main Publications

• SIGIR 2025 Is Having Rationales Enough? Rethinking Knowledge Enhancement for Multimodal Hateful Meme Detection, Junyu Lu, Bo Xu, Xiaokun Zhang, Haohao Zhu, Kaichun Wang, Liang Yang, Hongfei Lin.
• ACL 2025 findings Is LLM an Overconfident Judge? Unveiling the Capabilities of LLMs in Detecting Offensive Language with Annotation Disagreement, Junyu Lu, Kai Ma, Kaichun Wang, Kelaiti Xiao, Roy Ka-Wei Lee, Bo Xu, Liang Yang, Hongfei Lin. [Repo]
• NeurIPS 2024 Towards Comprehensive Detection of Chinese Harmful Memes, Junyu Lu, Bo Xu, Xiaokun Zhang, Hongbo Wang, Haohao Zhu, Dongyu Zhang, Liang Yang, Hongfei Lin. [Repo]
• COLING 2024 Take its Essence, Discard its Dross! Debiasing for Toxic Language Detection via Counterfactual Causal Effect, Junyu Lu, Bo Xu, Xiaokun Zhang, Kaiyuan Liu, Dongyu Zhang, Liang Yang, Hongfei Lin. [Repo]
• ACL 2023 Facilitating Fine-grained Detection of Chinese Toxic Language: Hierarchical Taxonomy, Resources, and Benchmarks, Junyu Lu, Bo Xu, Xiaokun Zhang, Changrong Min, Liang Yang, Hongfei Lin. [Repo]
• TASLP 2023 Hate Speech Detection via Dual Contrastive Learning, Junyu Lu, Hongfei Lin, Xiaokun Zhang, Zhaoqing Li, Tongyue Zhang, Linlin Zong, Fenglong Ma, Bo Xu.
• NLPCC 2022 Multi-task Hierarchical Cross-Attention Network for Multi-label Text Classification, Junyu Lu, Hao Zhang, Zhexu Shen, Kaiyuan Shi, Liang Yang, Bo Xu, Shaowu Zhang, Hongfei Lin. [Repo]

Other Publications

• ACL 2025 findings STATE ToxiCN: A Benchmark for Span-level Target-Aware Toxicity Extraction in Chinese Hate Speech Detection, Zewen Bai, Shengdi Yin, Junyu Lu, Jingjie Zeng, Haohao Zhu, Yuanyuan Sun, Liang Yang, Hongfei Lin. [Repo]
• NAACL 2025 Commonality and Individuality! Integrating Humor Commonality with Speaker Individuality for Humor Recognition, Haohao Zhu, Junyu Lu, Xiaokun Zhang, Zeyuan Zeng, Zewen Bai, Liang Yang, Hongfei Lin.
• ICASSP 2025 Towards Patronizing and Condescending Language in Chinese Videos: A Multimodal Dataset and Detector, Hongbo Wang, Junyu Lu, Yan Han, Kai Ma, Liang Yang, Hongfei Lin. [Repo]
• EMNLP 2024 findings PclGPT: A Large Language Model for Patronizing and Condescending Language Detection, Hongbo Wang, Mingda Li, Junyu Lu, Hebin Xia, Liang Yang, Bo Xu, Ruizhu Liu, Hongfei Lin. [Repo]
• BIBM 2024 CFAH: A Chinese Dataset for Detecting False Advertising in Healthcare, Weiru Fu, Junyu Lu, Youlin Wu, Guangtao Xu, Liang Yang, Hongfei Lin, Jian Wang. [Repo]

Note: The full list of publications is in Google Scholar.

📖 Educations

• 2023.09 - now, Ph.D. student, School of Computer Science and Technology, Dalian University of Technology.
• 2021.09 - 2023.06, M.Sc. candidate, School of Computer Science and Technology, Dalian University of Technology.
• 2017.09 - 2021.06, B.Sc, School of Computer Science and Technology, Dalian University of Technology.

💻 Internships

• 2025.05 - Now, Tencent Hunyuan, Beijing, China. Supervisor: Dr. Deyi Ji
• 2022.07 - 2022.12, China Mobile Research Institution, Beijing, China. Supervisor: Dr. Xue Han

💬 Invited Talks

• 2024.11, NeurIPS2024 Pre-Presentation Meeting. AI Time. [news][video]
• 2024.11, Academic Forum for Doctoral Students in 2024. School of Computer Science and Technology, Dalian University of Technology. [news]

🧑‍🔬 Services

Organizer

• CCL25-Eval Task 10: Fine-grained Chinese Hate Speech Detection Evaluation.

Reviewer

• Conference PC Member: ACL ARR (23 - Now), COLING (24), BIBM (24), ICASSP (25), NeurIPS (25)
• Journal Reviewer: TASLP, TALLIP

🎖 Honors and Awards

Technique Evaluation

• 2024.07, CCAC2024 Task1 Track1: Few-shot User Query Security Detection, Chinese Information Processing Society of China, The 2nd Place in 30+ Teams. [task]
• 2024.07, CCAC2024 Task1 Track2: Few-shot User Model Response Detection, Chinese Information Processing Society of China, The 1st Place in 30+ Teams. [task]
• 2022.05, NLPCC2022 Task5 Track1: Multi-label Classification Model for English Scientific Literature, China Computer Federation, The 2nd Place in 40+ Teams. [task] [report]
• 2020.09, CCF-BDCI2020: E-commerce User Purchasing Behavior Prediction, China Computer Federation, The 5th Place in 120+ Teams. [task]

Other Awards

• Tencent Rhino-Bird Elite Talent Program. Tencent. 2025.
• National Scholarship. The Ministry of Education of the People’s Republic of China. 2023.
• Huawei Scholarship. Huawei Technologies Co., Ltd. & Dalian University of Technology. 2022.
• Xianglian Scholarship. Dalian University of Technology. 2024.
• First Prize Scholarship for Postgraduate. Dalian University of Technology. 2022-2023.
• Excellent Postgraduate. Dalian University of Technology. 2022-2023.

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