Han Wang

Han Wang 王涵

Senior AI Scientist, LinkedIn

Sunnyvale, California

About

I am a Senior AI Scientist at LinkedIn, working on LLM post-training and agentic reinforcement learning. I received my Ph.D. in Electrical Engineering from Columbia University in 2024, where I was advised by Prof. James Anderson.

My research focuses on LLM post-training, federated learning, reinforcement learning, control theory, and large-scale optimization. The primary goal of my research is to enable reliable and efficient learning and decision-making in large-scale distributed systems.

Experience

Senior AI Scientist

LinkedIn · Sunnyvale, CA

LLM post-training, agentic reinforcement learning

Machine Learning Engineer

ByteDance · San Jose, CA

Ads ranking and bidding algorithms

Publications

See Google Scholar for a complete list.

2024

ICLR

Finite-Time Analysis of On-Policy Heterogeneous Federated Reinforcement Learning

Chenyu Zhang, Han Wang, Aritra Mitra, James Anderson

International Conference on Learning Representations (ICLR), 2024

ICML

Momentum for the Win: Collaborative Federated Reinforcement Learning across Heterogeneous Environments

Han Wang, Sihong He, Zhili Zhang, Fei Miao, James Anderson

International Conference on Machine Learning (ICML), 2024

L4DC

Meta-Learning Linear Quadratic Regulators: A Policy Gradient MAML Approach for Model-free LQR

Han Wang, Leonardo Felipe Toso, Donglin Zhan, James Anderson

Learning for Dynamics and Control (L4DC), Oxford, UK, 2024 🏆 Best Paper Award

2023

NeurIPS

Improved Communication Efficiency in Federated Natural Policy Gradient via ADMM-based Gradient Updates

Guangchen Lan, Han Wang, James Anderson, Christopher G. Brinton, Vaneet Aggarwal

Neural Information Processing Systems (NeurIPS), 2023

Academic Service

I serve as a reviewer for the following venues:

  • NeurIPS Conference on Neural Information Processing Systems
  • ICML International Conference on Machine Learning
  • ICLR International Conference on Learning Representations

Education

Ph.D., Electrical Engineering

Columbia University

Advisor: Prof. James Anderson

M.S., Applied Mathematics and Computational Science

University of Pennsylvania

Honors & Awards

  • Best Paper Award, Learning for Dynamics and Control (L4DC), Oxford, UK, 2024
  • Wei Family Scholarship, Wei Family Foundation, 2020
  • Departmental Fellowship for Outstanding PhD Students, Columbia University