About Me

I am a Research Engineer at Alibaba DAMO Academy. I obtained my PhD degree from The Chinese University of Hong Kong (CUHK) in 2021, under the supervision of Prof. Wai Lam. Before starting my PhD career, I was an undergraduate at Sun Yat-sen University (SYSU). I have interned at Microsoft Research Asia, Tencent AI Lab and Huawei Noah’s Ark Lab.

Contact E-mail: lixin4ever@gmail.com.

Research Interests

• Efficient LLM Fine-tuning & Inference
• Multimodal & Multilingual LLMs

Education

• 2016-2021, Ph.D., The Chinese University of Hong Kong, Department of Systems Engineering and Engineering Management. Advisor: Prof. Wai Lam
• 2012-2016, B.Eng., Sun Yat-Sen University, School of Computer Science and Engineering

Experiences

• Jul 2020-Feb 2021, Research Intern, Speech and Semantics Group@Huawei Noah’s Ark Lab. Mentor: Dr. Yi Liao.
• Jan 2018-Apr 2018, Research Intern, NLP Center@Tencent AI Lab. Mentor: Dr. Lidong Bing and Dr. Piji Li.
• Jul 2015-Jun 2016, Research intern, Knowledge Computing Group@Microsoft Research Asia. Mentor: Dr. Chin-Yew Lin and Dr. Jing Liu
• Sep 2014-July 2015, Research assistant, SentiNet Group, Sun Yat-Sen University. Supervisor: Prof. Rao Yanghui

Recent Research Projects [Full list]

• RynnVLA-001: Using Human Demonstrations to Improve Robot Manipulation
  Yuming Jiang, Siteng Huang, Shengke Xue, Yaxi Zhao, Jun Cen, Sicong Leng, Kehan Li, Jiayan Guo, Kexiang Wang, Mingxiu Chen, Fan Wang, Deli Zhao, Xin Li.
  [code][blog][checkpoint]
• RynnEC: Bringing MLLMs into Embodied World
  Ronghao Dang^* , Yuqian Yuan^* , Yunxuan Mao^* , Kehan Li^* , Jiangpin Liu, Zhikai Wang, Fan Wang, Deli Zhao, Xin Li.
  arXiv:2508.14160
  [code][checkpoints & demos]
• VideoLLaMA 3: Frontier Multimodal Foundation Models for Image and Video Understanding
  Boqiang Zhang^* , Kehan Li^* , Zesen Cheng^* , Zhiqiang Hu^* , Yuqian Yuan^* , Guanzheng Chen^* , Sicong Leng^* , Yuming Jiang^* , Hang Zhang^* , Xin Li^* , Peng Jin, Wenqi Zhang, Fan Wang, Lidong Bing, Deli Zhao.
  arXiv:2501.13106
  [code][checkpoints & demos]
• 2.5 Years in Class: A Multimodal Textbook for Vision-Language Pretraining
  Wenqi Zhang, Hang Zhang, Xin Li, Jiashuo Sun, Yongliang Shen, Weiming Lu, Deli Zhao, Yueting Zhuang, Lidong Bing.
  To appear in ICCV 2025 (Full paper, highlight)
  [code][dataset]
• VideoRefer Suite: Advancing Spatial-Temporal Object Understanding with Video LLM
  Yuqian Yuan, Hang Zhang, Wentong Li, Zesen Cheng, Boqiang Zhang, Long Li, Xin Li, Deli Zhao, Wenqiao Zhang, Yueting Zhuang, Jianke Zhu, Lidong Bing.
  In CVPR 2025 (Full paper, poster)
  [code (new)][videorefer-700k]videorefer-bench][videorefer-videollama3 (new)]

Honors & Awards

• AAAI Student Scholarship, 2020
• Outstanding Graduates Awards, Sun Yat-Sen University.
• Excellent Undergraduate Thesis award, Sun Yat-Sen University.

Professional Activities

• Reviewer (or PC Member):
  • ACL 2020-2023, EMNLP 2018-2023, NAACL 2021
  • AAAI 2019-2020
  • WSDM 2023, CIKM 2021
  • ACM Transactions on Knowledge Discovery from Data (TKDD)
  • ACM Transactions on Asian and Low-Resource Language Information Processing (TALLIP)
  • IEEE Transaction on Multimedia (TMM)
  • Neurocomputing
  • Computational Intelligence

Some Useful Notes & Links

• Introduction to Neural Word Embeddings. [pdf]
• Tutorial for Statistical Machine Translation.
• Tutorial for Neural Machine Translation.
• How to write a great research paper.

Hobbies

• Playing basketball
• Swimming
• Hiking