👋 Hi there

My name is Fengxu Liu. I am currently a master’s student at the National University of Singapore. I am currently conducting research on reinforcement learning from human feedback (RLHF) at Microsoft Research Asia (MSRA) under the joint supervision of Dr. Siwei Wang and Dr. Yihan Du. My research interest includes Machine Learning , Deep learning , Reinforcement learning , Muti-armed bandits.I aspire to pursue a PhD focusing on these directions.For my PhD, I aim to develop principled algorithms with theoretical guarantees and practical impact.

I graduated from Shanghai University of Finance and Economics with a bachelor’s degree and from the School of Statistics and Data Science.

At my personal page, I will share the process of working on some interesting open-source projects on GitHub. I will also post my original content, covering insights from my personal learning and research, hoping to exchange ideas and grow together with everyone!

🔥 News

• 2026.10 Our preprint, Reinforcement Learning with Segment Reward Feedback under Linear Function Approximation, is now available on arXiv.

🎖 Honors and Awards

• 2024-2025 Academic Year Second-Class People’s Scholarship (University-level) (Top 6%).
• 2023-2024 Academic Year Second-Class People’s Scholarship (University-level) (Top 6%).
• 2023 Gaojiao Cup China Undergraduate Mathematical Contest in Modeling Second Prize (Province-level, Nov. 2023) .
• 2021-2022 Academic Year Second-Class People’s Scholarship (University-level) (Top 6%).

📖 Educations

• 2021.08 - 2022.09 Computer Science and technology , School of Information Management and Engineering , Shanghai University of Finance and Economics .
• 2022.09 - 2025.07 Economic Statistics(Finance Statistics and Risk Management) , School of Statistics and Data Science , Shanghai University of Finance and Economics .
• 2025.08 - 2027.08 Data Science and Machine Learning , School of Science , National University of Singapore .

💻 Internships

• 2023.06 - 2023.08 Corporate Business , Huaan Securities Shanghai Branch , Shanghai China.
• Jun.2025 – Present Part-time RA (with Prof. Yihan Du) , Singapore University of Technology and Design (SUTD) , Singapore
• Aug.2026 – Present Machine Learning Theory Group (Mentor: Dr. Siwei Wang), Microsoft Research Asia (MSRA) , Beijing

📝 Publications

(None,but I am trying my best😇 )