Liyu Chen

Researcher, OpenAI

Joined

July 2019

Names

Liyu Chen (Preferred)

Emails

****@usc.edu (Confirmed)

****@gmail.com (Confirmed)

Personal Links

Homepage

Google Scholar

Career & Education History

Researcher

OpenAI (openai.com)

2024 – Present

Researcher

ByteDance Inc (bytedance.com)

2023 – 2024

PhD student

University of Southern California (usc.edu)

2017 – 2023

Advisors, Relations & Conflicts

PhD Advisor

Haipeng Luo

2020 – 2023

Coauthor

Hexiang Hu

2017 – 2020

Coauthor

Fei Sha

2017 – 2020

Expertise

Natural Language Processing

Present

Large Language Models

2023 – 2024

Code generation

2023 – 2024

Reinforcement Learning

2020 – 2024

Online Learning

2020 – 2024

Publications

Teaching Language Models to Critique via Reinforcement Learning
Zhihui Xie, Jie chen, Liyu Chen, Weichao Mao, Jingjing Xu, Lingpeng Kong
- DL4C @ ICLR 2025
- Readers: Everyone
Reward-Augmented Data Enhances Direct Preference Alignment of LLMs
Shenao Zhang, Zhihan Liu, Boyi Liu, Yufeng Zhang, Yingxiang Yang, Yongfei Liu, Liyu Chen, Tao Sun, Zhaoran Wang
- ICLR 2025 Workshop Data Problems Poster
- Readers: Everyone
Reward-Augmented Data Enhances Direct Preference Alignment of LLMs
Shenao Zhang, Zhihan Liu, Boyi Liu, Yufeng Zhang, Yingxiang Yang, Yongfei Liu, Liyu Chen, Tao Sun, Zhaoran Wang
- ICML 2025 poster
- Readers: Everyone
Teaching Language Models to Critique via Reinforcement Learning
Zhihui Xie, Jie chen, Liyu Chen, Weichao Mao, Jingjing Xu, Lingpeng Kong
- ICML 2025 poster
- Readers: Everyone
Reward-Augmented Data Enhances Direct Preference Alignment of LLMs
Shenao Zhang, Zhihan Liu, Boyi Liu, Yufeng Zhang, Yingxiang Yang, Yongfei Liu, Liyu Chen, Tao Sun, Zhaoran Wang
- Submitted to ICLR 2025
- Readers: Everyone
$\mathcal{B}$-Coder: On Value-Based Deep Reinforcement Learning for Program Synthesis
Zishun Yu, Yunzhe Tao, Liyu Chen, Tao Sun, Hongxia Yang
- FMDM@NeurIPS2023
- Readers: Everyone
$\mathcal{B}$-Coder: Value-Based Deep Reinforcement Learning for Program Synthesis
Zishun Yu, Yunzhe Tao, Liyu Chen, Tao Sun, Hongxia Yang
- ICLR 2024 spotlight
- Readers: Everyone
Posterior Sampling-based Online Learning for the Stochastic Shortest Path Model
Mehdi Jafarnia-Jahromi, Liyu Chen, Rahul Jain, Haipeng Luo
- Published: 08 May 2023, Last Modified: 26 Jun 2023
- UAI 2023
- Readers: Everyone
Layered State Discovery for Incremental Autonomous Exploration
Liyu Chen, Andrea Tirinzoni, Alessandro Lazaric, Matteo Pirotta
- ICML 2023 Poster
- Readers: Everyone
Near-Optimal Goal-Oriented Reinforcement Learning in Non-Stationary Environments
Liyu Chen, Haipeng Luo
- Published: 31 Oct 2022, Last Modified: 14 Dec 2022
- NeurIPS 2022 Accept
- Readers: Everyone

View all 13 publications

Co-Authors

View all 26 co-authors