About

Ph.D. in Physics. Research scientist in machine learning.

I work on machine learning methods, production-scale systems, and applications in science.

Portrait of Boran Han
Boran Han

I work on learning systems for reasoning, structured data, and scientific applications.

I am a Senior Research Scientist in AWS AGI Foundations. My current work focuses on agentic reinforcement learning, LLM post-training, and foundation models for structured data, including time series and tables.

Before AWS, I was an AI Researcher at Shell, developing physics-informed and weakly supervised methods for scientific data. I earned my Ph.D. in Physics from Harvard University, where I worked with Xiaowei Zhuang on computational and super-resolution microscopy.

My background spans computational microscopy, physics-informed machine learning, and large-scale foundation models.

Senior Research Scientist / AWS

Agentic RL, LLM post-training, and structured-data foundation models.

Research Scientist / AWS

Foundation-model pretraining, multimodal reasoning, geospatial AI, and model adaptation.

AI Researcher / Shell

Physics-based semi-supervised learning for sparse scientific observations.

Ph.D. in Physics / Harvard University

Machine-learning-driven computational microscopy and quantitative biological discovery.

B.S. in Physics / Shandong University

Foundations in physics, chemistry, and computational science.

Awards, talks, and research service.

Area Chair Award ACL 2024 / CaMML
Invited research talks ICLR Expo, NeurIPS Expo, ICML Expo, and LBNL AI4Science
Workshop organizer ICLR AI4Differential Equations and ICML Foundation Models for Structured Data
Research community Area Chair for ICLR; reviewer for ICML, NeurIPS, KDD, CVPR, ICCV, and ARR
Distinction in Teaching Harvard University / 2014
Karplus Prize Harvard University / 2013