Haochen Zhang is a Ph.D. candidate in Computer Science at Stanford University from September 2019 to June 2024. Currently serving as a Member of Technical Staff at Anthropic since April 2024, Haochen focuses on reinforcement learning and post-training of Claude models. Previous research experience includes a position as a Visiting Researcher at the Massachusetts Institute of Technology from February 2018 to July 2018, working on theoretical guarantees of stochastic optimization algorithms for machine learning, and a Visiting Researcher role at the Vector Institute in July 2018, where work centered on online hyper-parameter tuning for deep learning models. Haochen holds a Bachelor's degree in Computer Science from Tsinghua University, earned from 2015 to 2019.
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