Hi! I’m Shengnan An (安晟男), a researcher on the LongCat Foundation Model Team at Meituan, which I joined in July 2025 through the Beidou graduate program.
I received my Ph.D. from Xi’an Jiaotong University in June 2025, advised by Prof. Nanning Zheng, through a joint training program with Microsoft Research Asia (MSRA). I was a research intern at MSRA from August 2019 to June 2025, working with Jian-Guang Lou and Zeqi Lin.
My research focuses on understanding and improving the capabilities of large language models, with an emphasis on mid-training data curation, agents for productivity work, and mathematical and general reasoning. My earlier research covered long-context understanding, in-context learning, code generation, and compositional generalization.