Yujian Li

MBTI

2025.06.19 INFJ-A (Introverted – 94%, Intuitive – 88%, Feeling – 86%, Judging – 63%, Assertive – 53%)

2024.09.23 INFJ-T (Introverted – 100%, Intuitive – 93%, Feeling – 78%, Judging – 65%, Turbulent – 67%)

experience

Alibaba

Jun 25, 2026 – Present

Full-time

on VL agent for the audit task.

Alibaba

May 26, 2025 – Sep 5, 2025

Intern

on optimizing (sft+grpo) VLM for the audit task. Lucky to meet chuxi, chunyang, zhaoyu, xinyue, hongqiao, ziang, yan, zi, ting, haiwen... I also tried something on entropy-controlled grpo and budget-controlled reasoning.

Microsoft

Oct 29, 2024 – Feb 17, 2025

Intern (remote)

on reasoning (math/code). Lucky to meet xinyu, yifei, jiahang, li... I was asked on many things, including mcts, self-correction, long synthetic cot, online rl... Due to constant requests to change direction, it is broad but superficial. I do not think that I deserve the 'Stars of Tomorrow' certificate. :<

Tencent

Mar 6, 2024 – Jul 25, 2024

Intern

on LLM application for game. Happy to meet c, wang, tensor, peixin, ziv... (Doomed without you all 💣). We contributed to an llm-powered chat npc in a game and it's online.

education

Xidian University

Sep 3, 2023 – Jun 16, 2026

M.Eng. in Computer Science and Technology

Xidian University

Aug 24, 2019 – Jun 21, 2023

B.Eng. in Artificial Intelligence

Urumqi No. 1 High School

2016 – 2019 (≈ 1,095 days)

High School

This world

Sep 27, 2000 – Present

Lifelong Learning

papers

^* Corresponding author · ^† Equal contribution

Except for writing and polishing the papers, I did almost all the work myself.

Rapid Plug-in Defenders

Kai Wu, Yujian Betterest Li^*, Jian Lou, Xiaoyu Zhang, Handing Wang, and Jing Liu

In Advances in Neural Information Processing Systems, 2024

HTML PDF

@inproceedings{NEURIPS2024_fd9c2c5d,
 author = {Wu, Kai and Li, Yujian Betterest and Lou, Jian and Zhang, Xiaoyu and Wang, Handing and Liu, Jing},
 booktitle = {Advances in Neural Information Processing Systems},
 doi = {10.52202/079017-4449},
 editor = {A. Globerson and L. Mackey and D. Belgrave and A. Fan and U. Paquet and J. Tomczak and C. Zhang},
 pages = {140175--140198},
 publisher = {Curran Associates, Inc.},
 title = {Rapid Plug-in Defenders},
 url = {https://proceedings.neurips.cc/paper_files/paper/2024/file/fd9c2c5d018264c28791cda8bd60c8ce-Paper-Conference.pdf},
 volume = {37},
 year = {2024}
}

SPELL: Semantic Prompt Evolution based on a LLM

Yujian Betterest Li^* and Kai Wu

arXiv preprint arXiv:2310.01260, Oct 2023

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@misc{li2023spellsemanticpromptevolution,
      title={SPELL: Semantic Prompt Evolution based on a LLM}, 
      author={Yujian Betterest Li and Kai Wu},
      year={2023},
      eprint={2310.01260},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2310.01260}, 
}

I just helped.

Synthetic Series-Symbol Data Generation for Time Series Foundation Models

Wenxuan Wang, Kai Wu^*, Yujian Betterest Li, Dan Wang^*, and Xiaoyu Zhang

In Advances in Neural Information Processing Systems, 2025

HTML PDF

@inproceedings{NEURIPS2025_0f45ce82,
 author = {Wang, Wenxuan and Wu, Kai and li, yujian and Wang, Dan and Zhang, Xiaoyu},
 booktitle = {Advances in Neural Information Processing Systems},
 doi = {10.52202/085713-0352},
 editor = {D. Belgrave and C. Zhang and H. Lin and R. Pascanu and P. Koniusz and M. Ghassemi and N. Chen},
 pages = {10491--10554},
 publisher = {Curran Associates, Inc.},
 title = {Synthetic Series-Symbol Data Generation for Time Series Foundation Models},
 url = {https://proceedings.neurips.cc/paper_files/paper/2025/file/0f45ce821121c459398fd03a0ecc6b60-Paper-Conference.pdf},
 volume = {38, Main Conference},
 year = {2025}
}

Pretrained Optimization Model for Zero-Shot Black Box Optimization

Xiaobin Li, Kai Wu^*, Yujian Betterrest Li, Xiaoyu Zhang, Handing Wang, and Jing Liu

In Advances in Neural Information Processing Systems, 2024

HTML PDF

@inproceedings{NEURIPS2024_19e9a88d,
 author = {Li, Xiaobin and Wu, Kai and Li, Yujian Betterrest and Zhang, Xiaoyu and Wang, Handing and Liu, Jing},
 booktitle = {Advances in Neural Information Processing Systems},
 doi = {10.52202/079017-0456},
 editor = {A. Globerson and L. Mackey and D. Belgrave and A. Fan and U. Paquet and J. Tomczak and C. Zhang},
 pages = {14283--14324},
 publisher = {Curran Associates, Inc.},
 title = {Pretrained Optimization Model for Zero-Shot Black Box Optimization},
 url = {https://proceedings.neurips.cc/paper_files/paper/2024/file/19e9a88d91917775b34fdad447ed8908-Paper-Conference.pdf},
 volume = {37},
 year = {2024}
}

I contributed just a little during my internship.

Yuvion LLM: An Adversarially-Aware Large Language Model for Content And AI Safety

Contributor

Ting Ma^†, Xiufeng Huang^†, Benlei Cui^†, Xiaowen Xu^†, Shikai Qiu^†, Ruijie Jian^†, Hongxing Li^†, Guanghui Wang^†, Longtao Huang^†, Haiwen Hong^*†, and 36 more authors

arXiv preprint arXiv:2606.27632, Jun 2026

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@misc{ma2026yuvionllmadversariallyawarelarge,
      title={Yuvion LLM: An Adversarially-Aware Large Language Model for Content And AI Safety}, 
      author={Ting Ma and Xiufeng Huang and Benlei Cui and Xiaowen Xu and Shikai Qiu and Ruijie Jian and Hongxing Li and Guanghui Wang and Longtao Huang and Haiwen Hong and Haolei Xu and Wenjing Jiang and Ziwen Xu and Zhaoyu Fan and Shaoxuan He and Chuxi Xiao and Yujian Li and Xinyue Chen and Chunyang Chai and Wenxuan Liu and Ziheng Wang and Dongjie Zhang and Yangfan Zhou and Libin Dong and Yupeng Cao and Xiaoqian Xia and Jing Wang and Zhe Jiang and Zhenan Ye and Guang Yang and Bin Liu and Wei Peng and Ziqiang Zhu and Meihui Lian and Kaiwen Lv Kacuila and Haidong Ding and Bingyu Zhu and Yan Wang and Hai Zhao and Xuan Jin and Wei Zhao and Pengfei Sun and Wei Wang and Huiming Zhang and Bin Li and Hui Xue},
      year={2026},
      eprint={2606.27632},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2606.27632}, 
}

Yuvion VL: A Multimodal Foundation Model for Adversarial Content and AI Safety

Core Contributor

Shikai Qiu^†, Xiaowen Xu^†, Benlei Cui^†, Ting Ma^†, Xiufeng Huang^†, Wenjing Jiang^†, Shaoxuan He^†, Haolei Xu^†, Chunyang Chai^†, Yujian Li^†, and 48 more authors

arXiv preprint arXiv:2606.25034, Jun 2026

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@misc{qiu2026yuvionvlmultimodalfoundation,
      title={Yuvion VL: A Multimodal Foundation Model for Adversarial Content and AI Safety}, 
      author={Shikai Qiu and Xiaowen Xu and Benlei Cui and Ting Ma and Xiufeng Huang and Wenjing Jiang and Shaoxuan He and Haolei Xu and Chunyang Chai and Yujian Li and Yiliang Zhang and Guanghui Wang and Ziheng Wang and Ziwen Xu and Zhaoyu Fan and Jinhao Chen and Ruijie Jian and Hongxing Li and Chuxi Xiao and Xinyue Chen and Wenxuan Liu and Libin Dong and Yupeng Cao and Xiaoqian Xia and Jing Wang and Zhe Jiang and Zhenan Ye and Guang Yang and Bin Liu and Wei Peng and Ziqiang Zhu and Meihui Lian and Kaiwen Lv Kacuila and Haidong Ding and Dongjie Zhang and Yangfan Zhou and Bingyu Zhu and Yan Wang and Hai Zhao and Xuan Jin and Wei Zhao and Pengfei Sun and Huiming Zhang and Wei Wang and Xipeng Cao and Jialun Chen and Xiao Chen and Shaola Ren and Yunqing Hu and Bin Li and Chengwen Yao and Meng Huang and Xianfeng Li and Bin Tang and Chao Liu and Hui Xue and Longtao Huang and Haiwen Hong},
      year={2026},
      eprint={2606.25034},
      archivePrefix={arXiv},
      primaryClass={cs.CV},
      url={https://arxiv.org/abs/2606.25034}, 
}