Jianhao RUAN

About ME

Hi!👋 My name is Jianhao Ruan(阮建豪). I am an undergraduate in DSA Thrust at HKUST (GZ). From May to Nov 2025, I interned at the DSAIL Lab under Prof.Lijia, focusing on LLMs and graph algorithms. Since Sep 2025, I have been a Research Engineer intern with the MetaGPT team, supervised by PhD student Jiayi Zhang, co-supervised by Prof.Liubang, working on multi-agent systems and reinforcement learning.

I will be an exchange student at UCLA from Jan to Mar 2026.

I am actively looking for 2027 fall PhD positions and industry internship collaborations. Feel free to email me if you are interested.

My research interests include multi-agent systems (MAS), agentic LLM architectures, learning and memory systems, and reinforcement learning and reward design.

selected publications

Under review

Exposing Weaknesses of Large Reasoning Models through Graph Algorithm Problems

Qifan Zhang*, Jianhao Ruan*, Aochuan Chen, Kang Zeng, Nuo Chen, Jing Tang, Jia Li

Under review, June 2025 - Sept 2025

• Proposed a benchmark to rigorously evaluate the reasoning robustness of large reasoning models (LRMs) through graph algorithmic problems.
• Co-led experimental design and comparative analysis to identify systematic weaknesses in multi-step reasoning performance.

PDF

ArXiv

AutoEnv: Automated Environments for Measuring Cross-Environment Agent Learning

Jiayi Zhang, Yiran Peng, Fanqi Kong, Cheng Yang, Yifan Wu, Zhaoyang Yu, Jinyu Xiang, Jianhao Ruan, Jinlin Wang, Maojia Song, HongZhang Liu, Xiangru Tang, Bang Liu, Chenglin Wu, Yuyu Luo

In ArXiv, 2025

ABS PDF

* Equal contribution.

projects & experience

• 2025.05 - Present: GLC: Graph-based Long-Context Reasoning
  • Developed a novel benchmark to evaluate the long-context reasoning capabilities of Large Language Models.
• 2025.04 - 2025.05: Benchmarking LLMs on Reasoning-Length Cognition
  Supervisor: Prof. Jiali & Aochuan Chen (PhD Student)
  • Developed a novel benchmark to evaluate the long-context reasoning capabilities of Large Language Models.
• 2024.09 - Present: iGEM: New Media, Web Presentation, and Social Science Tasks
  Tools: GitLab, WordPress, Video Editing, Photography, Field Research
  • Led new media and web presentation tasks, ensuring clear communication of research progress.
  • Conducted field research and surveys to support the social science aspects of the project.
  • Created engaging content and managed social media platforms to raise awareness of the iGEM project.
  • Edited videos and took photos for project documentation and presentations.
• 2023.09 - 2024.05: RoboMaster: Autonomous Targeting Algorithm Development
  Tools: Linux, Computer Vision, Bash, Python
  • Developed autonomous targeting systems for RoboMaster robots, improving accuracy and performance.
  • Implemented vision-based algorithms for object detection and tracking, utilizing computer vision libraries.
  • Configured and optimized Linux environments and tools for algorithm testing and deployment.
  • Created scripts using Bash to automate tasks, contributing to improved workflow efficiency.
  • [GitHub Link]

internships

• 2025.02 - Present: LLM-Related Research at Tech Startup
  Tools: Python, Research Tools
  • Conducting research related to large language models (LLMs) at a tech startup.
  • Collaborating with a team to explore innovative applications and improvements for LLM technology.

Honors and Awards

• 2025.05: Third Prize, 18th "Challenge Cup" Guangdong Provincial Competition
• 2024.10: Gold Medal and Nomination Prize for Best New Basic Part, International Genetically Engineered Machine Competition (iGEM) - Team Leader
• 2024.04: Second Prize, RoboMaster 2024 University League (Guangdong Provincial), 3v3 Match
• 2023.09: Freshman Scholarship, The Hong Kong University of Science and Technology (Guangzhou)
• 2023.06: Outstanding Graduate Award, Shenzhen Senior High School (Group) - Awarded to the top 10% of the graduating class for overall excellence throughout three years of high school.

Education

• 2023.09 - 2027.06 (Expected): BSc in HKUST(GZ), The Hong Kong University of Science and Technology (Guangzhou)
• 2020.09 - 2023.06: High School, Shenzhen Senior High School
• 2017.09 - 2020.06: Middle School, Shenzhen Senior High School

Skills

Programming Languages: Python (PyTorch, scikit-learn, pandas, numpy, matplotlib), C++

Technical Tools: Bash, Git, Vim, LaTeX, Markdown

Languages: English (fluent), Chinese (native)

leadership & service

• 2025.07 - Present: Senate Member, The Senate of HKUST(GZ)
• 2023.10 - 2024.06: Community Leader, Residential College of HKUST(GZ)

Extracurricular Activities

• 2024.09 - Present: Member, Student Press Squad, The Hong Kong University of Science and Technology (Guangzhou)
• 2023.09 - Present: Photographer & Team Member, Photography Society, The Hong Kong University of Science and Technology (Guangzhou)
• 2023 - Present: Member, Varsity Basketball Team, The Hong Kong University of Science and Technology (Guangzhou)
• 2020 - 2023: Member, Shenzhen Senior High School Zicheng Men's Choir

Hobbies: Reading, Traveling, Photography, Music

Contact

Best way to reach me: Email for research, GitHub for code, Rednote for life.