About Me

I am Shi Feng (冯时), a Ph.D. candidate in Computer Science at Harvard University, advised by Prof. Yiling Chen.

Job Market: I expect to graduate in February 2027 and am seeking research scientist positions in LLM post-training and reasoning, and in economics and computation.

I received my B.E. with Honors in Computer Science from Tsinghua University’s Yao Class. Previously, I was a research intern at the Theory Center of Microsoft Research Asia (MSRA), mentored by Prof. Wei Chen.

My research focuses on language model post-training and reasoning: learning from limited supervision, improving the diversity of correct solutions, and understanding how models detect errors. I also study mechanism design and learning in strategic environments, including auctions, information elicitation, and AI evaluation.

Outside of research, I am a landscape photographer. I enjoy capturing natural scenery and urban moments through a technical yet minimalist lens. Some of my photography work can be found in my iStock portfolio.