Changsheng Sun

I am on the job market and expect to graduate in 2026.

I am a final-year Ph.D. candidate at the PLSE Lab, School of Computing, National University of Singapore, advised by Prof. Dong Jin Song. My research focuses on trustworthy AI, with current work on long-horizon agents and post-training with verifiable rewards, and earlier work on trustworthy geometric learning.

Education

• Ph.D. in Computer Science (2022–2026, expected)
  National University of Singapore
  Advisor: Prof. Dong Jin Song
• Master of Computing in Artificial Intelligence (2020–2021)
  National University of Singapore
• Bachelor of Engineering in Computer Science (2015–2019)
  Xidian University, Xi'an, China

Experience

• SoTA Lab, Zhihu Inc., Singapore
  Research Intern — Long-Horizon Agents (Jun 2026–Present)
• School of Computing, National University of Singapore
  Ph.D. Researcher — Trustworthy AI (Jan 2022–Present)
• Singtel-NUS Cyber Security R&D Lab, Singapore
  Research Intern — Trustworthy AI (Jan 2020–Jun 2020)
• JD Intelligent Cities Research, JD.com, Inc., Beijing, China
  Algorithm Engineer and Research Intern — Distributed Reinforcement Learning with Ray (Jan 2018–Jun 2018)

Publications