Hi~ I am Yusen Zhang, a fourth-year CS PhD student at Penn State University, advised by Dr. Rui Zhang. I have done industry research internships at Amazon, Microsoft, and Google. I also worked closely with Dr. Dragomir Radev. I received my master’s degree from Emory University, advised by Dr. Jinho D. Choi. Before that, I received my bachelor’s degree from Beijing Institute of Technology. When I was in Beijing, I interned at Big Data Mining Group, Microsoft Research Asia where I started my research on NLP.

Research

My research interests lie in applying Deep Learning for Natural Language Processing, focusing on Natural Language Generation. Specifically, I am interested in the following research topics:

        Scalable, efficient, trustworthy, Collaborative Large Language Model systems.
        Human-centric Large Language Model evaluation and applications.

To answer the following research questions:

1. How can we design mechanisms to facilitate efficient, accurate, and context-aware communication between LLMs?
2. How can we harness the collective intelligence of LLMs to address reasoning challenges and high-stakes decision-making tasks?
3. What technological, ethical, and policy frameworks should we establish to ensure the responsible integration of collaborative LLM systems into society?

I am applying for postdoctoral positions starting in Fall 2025 to advance my research on multi-agent LLM systems. I am actively seeking opportunities in this area and welcome any related information or openings. I am also open to academic collaborations—please feel free to reach out if you’re interested in working together!

News

[2024.9] One paper on Multi-Agent LLMs is accepted at NeurIPS 2024. Thanks to all my collaborators!

[2024.7] One paper on LLM error detection is accepted at COLM 2024. Thanks to Ryo and all the collaborators!

[2024.3] Got one paper accepted at NAACL 2024. Thanks to all my collaborators!

[2023.8] Got one paper accepted at EMNLP 2023. Thanks Nan Zhang and other collaborators!

[2023.8] Start Student Researcher Internship at Cloud AI Team @ Google Research, advised by Dr. Ruoxi Sun!

[2023.5] Got one paper accepted at ACL 2023. Thanks to all my collaborators!

[2023.4] Oral talk at MASC-SLL 2023 at Georgetown Mason University (Arlington campus)!

[2023.2] Got one paper accepted at TACL 2023 (acceptance type (a) accepted as is, ~= 5%!). Thanks to all my collaborators!

[2022.12] Give a talk at Westlate NLP on Controllable Text Summarization. Thanks for having me!

[2022.7] Receive Dr. Tse-Yun Feng Graduate Student Award @ PSU CSE. Thanks everyone!

[2022.6] Start Applied Scientist Internship at AWS AI lab @ Amazon Web Service, advised by Dr. Xiaofei Ma!

[2022.2] Got two papers accepted at ACL 2022. Thanks to all my collaborators!

[2022.2] Start Research Internship at Cognitive Service Research Group @ Microsoft Research, advised by Dr. Yang Liu.

[2021.8] Got two papers accepted at EMNLP 2021. Thanks to all my collaborators!

[2021.8] Started my PhD study at NLP Lab @ Penn State. I am fortunate to be supervised by Prof. Rui Zhang!

[2021.5] Got one paper accepted at ACL 2021. Thanks to all my collaborators!

[2021.1] Started to work as a research assistant at Lily Lab @ Yale University, advised by Dr. Dragomir Radev.