Hi, my name is Yanggan Gu (辜仰淦). I am currently a research assistant at InfiX-ai, fortunately advised by Prof. Hongxia Yang. Before this, I received my Master’s degree from Soochow University in 2025, fortunately advised by Prof. Zhenghua Li.

My research trajectory began with syntactic and semantic parsing and has now shifted to Large Language Models (LLMs). I am particularly interested in model merging and fusion, as well as human-aligned, trustworthy AI.

🔥 News

• 2025.09:  🎉🎉 Two papers have been accepted to NeurIPS 2025!
• 2025.02:  🎉🎉 Two papers have been accepted to ACL 2025 Findings!

📝 Publications

* denotes equal contribution.

Model Merging&Fusion

• arXiv:2509 Model Merging Scaling Laws in Large Language Models. Yuanyi Wang*, Yanggan Gu*, Yiming Zhang*, Qi Zhou, Zhaoyi Yan, Congkai Xie, Xinyao Wang, Jianbo Yuan, Hongxia Yang

• NeurIPS 2025 Spotlight InfiFPO: Implicit Model Fusion via Preference Optimization in Large Language Models. Yanggan Gu, Yuanyi Wang, Zhaoyi Yan, Yiming Zhang, Qi Zhou, Fei Wu, Hongxia Yang

• NeurIPS 2025 InfiGFusion: Graph-on-Logits Distillation via Efficient Gromov-Wasserstein for Model Fusion. Yuanyi Wang, Zhaoyi Yan, Yiming Zhang, Qi Zhou, Yanggan Gu, Fei Wu, Hongxia Yang

• Nexus Democratizing AI Through Model Fusion: A Comprehensive Review and Future Directions. Qi Zhou, Yiming Zhang, Yanggan Gu, Yuanyi Wang, Zhijie Sang, Zhaoyi Yan, Zhen Li, Shengyu Zhang, Fei Wu, Hongxia Yang

Human-Aligned and Trustworthy AI

• EMNLP 2025 Main Exploring Response Uncertainty in MLLMs: An Empirical Evaluation under Misleading Scenarios. Yunkai Dang, Mengxi Gao, Yibo Yan, Xin Zou, Yanggan Gu, Aiwei Liu, Xuming Hu

• ACL 2025 Findings Capturing Nuanced Preferences: Preference-Aligned Distillation for Small Language Models. Yanggan Gu, Junzhuo Li, Sirui Huang, Xin Zou, Zhenghua Li, Xuming Hu

• ACL 2025 Findings StructFact: Reasoning Factual Knowledge from Structured Data with Large Language Models. Sirui Huang*, Yanggan Gu*, Zhonghao Li, Xuming Hu, Li Qing, Guandong Xu

• SIGIR 2025 HyperG: Hypergraph-Enhanced LLMs for Structured Knowledge. Sirui Huang, Hanqian Li, Yanggan Gu, Xuming Hu, Qing Li, Guandong Xu

Syntactic Parsing

• COLING 2024 High-Order Joint Constituency and Dependency Parsing. Yanggan Gu, Yang Hou, Zhefeng Wang, Xinyu Duan, Zhenghua Li

🎖 Honors and Awards

• 2023.08 1st place in the CCL-2023 Chinese AMR Parsing Evaluation Task. Report.
• 2021.12 Top 10 Innovative Figures of Guangdong University of Technology. Sohu News
• 2021.11 National Encouragement Scholarship. Link
• 2021.11 1st Prize at the 9th “China Software Cup” College Student Design Competition. Link

📖 Educations

• 2022.09 - 2025.06, Graduate student at NLP Lab, Soochow University, advised by Prof. Zhenghua Li.
• 2018.09 - 2022.06, Undergraduate student at School of Computer Science, Guangdong University of Technology, advised by Prof. Guangqiang Xie.

💻 Internships

• 2025.06 - now, InfiX-ai, China.