Iโm Xuejun Zhang, a first-year Ph.D. student in Computer Science at the University of Illinois Urbana-Champaign, advised by Prof. Heng Ji. My research interests lie in natural language processing and multimodal learning. Before joining UIUC, I received a dual bachelorโs degree from Shanghai Jiao Tong University and the University of Michigan, where I worked with Prof. Joyce Chai.
๐ฅ News
- 2025.08: I started my Ph.D. in Computer Science at the University of Illinois Urbana-Champaign!
- 2025.08: I graduated from Shanghai Jiao Tong University with the Outstanding Graduate honor!
- 2025.06: I graduated from the University of Michigan with Summa Cum Laude honors!
- 2024.09: ย ๐๐ โMulti-Object Hallucination in Vision-Language Modelsโ is accepted by NeurIPS 2024!
๐ Publications

Predicting Camera Pose from Perspective Descriptions for Spatial Reasoning
Xuejun Zhang, Aditi Tiwari, Zhenhailong Wang, Heng Ji

Vision-Language Models Are Not Pragmatically Competent in Referring Expression Generation
Ziqiao Ma*, Jing Ding*, Xuejun Zhang, Dezhi Luo, Jiahe Ding, Sihan Xu, Yuchen Huang, Run Peng, Joyce Chai

Multi-Object Hallucination in Vision-Language Models
Xuweiyi Chen*, Ziqiao Ma*, Xuejun Zhang*, Sihan Xu, Shengyi Qian, Jianing Yang, David F. Fouhey, Joyce Chai
๐ Honors and Awards
- 2022.11: First Place in Tennis Team Event at the 49th Shanghai Jiao Tong University Sports Meet
- 2022.12: 2021-2022 Academic Year Merit Scholarship at Shanghai Jiao Tong University
- 2023.5: Outstanding Winner and AMS Award in Interdisciplinary Contest In Modeling
- 2023.5: Runner-up in Tennis Team Event at the 2023 Shanghai Jiao Tong University General Cup
- 2023.7: Future Technology Taihu Scholarship
- 2024.5: Deanโs Honor List & University Honors (Every semester at Umich)
- 2024.10: NeurIPS 2024 Scholar Award
- 2025.06: Summa Cum Laude, University of Michigan
- 2025.08: Outstanding Graduate, Shanghai Jiao Tong University
๐ Educations
- 2023.08 - 2025.05: University of Michigan.
- 2021.09 - 2025.07: Shanghai Jiaotong University.
- 2025.08 - now: University of Illinois Urbana-Champaign.
๐ป Positions and Public Service
- 2022.08-2022.12: Teaching Assistant of Academic Writing.
- 2022.02-Present: Advisor of UMJI Advising Center
๐Happy to share my first paper "Multi-Object Hallucination in Vision-Language Models" in #ALVR at #ACL2024! Do VLMs hallucinate more in multi-object scenes? Shortcuts? Spurious correlations? What factors contribute to their hallucinations? ๐
— Xuejun Zhang (@eva_xuejunzhang) July 9, 2024
๐https://t.co/5VsTym5BR3 ๐งต[1/n] pic.twitter.com/CXboiIKL0s