Lechen Zhang
Hi, I am Lechen! I am a first-year Ph.D. Student in Computer Science at University of Illinois Urbana-Champaign, advised by Professor Tal August in the Language Interaction Lab. I have broad interests in Natural Language Processing and Machine Learning. I am particularly interested in the generalization and robustness of large language models (LLMs), especially their efficient learning and reasoning capabilities in out-of-domain settings. My recent research focuses on evaluating and improving LLM personalization, with the goal of aligning general model behavior more effectively with downstream tasks and user needs.
Previously, I earned my master’s degree from University of Michigan and my bachelor’s degree from Shanghai Jiao Tong University. During my time at Michigan, I was a member of Blablablab advised by Professor David Jurgens, and also worked with Professor Lu Wang as part of the Launch Lab.
You can find my CV here.
news
| Apr 07, 2026 | Three papers accepted to ACL 2026!!! Thanks to all collaborators and see you in San Diego! |
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| Jan 26, 2026 | My first-authored paper SPRIG is finally accepted to ICLR 2026 🎉! This is also my first time to ICLR and Brazil 🇧🇷. Big thanks to all my collaborators for their persistence! |
| Nov 04, 2025 | I will attend EMNLP 2025 and present our paper VeriFact! Can’t wait to visit Suzhou and meet friends! |
| Apr 15, 2025 | I’m excited to share that I’ll be joining UIUC this fall. Looking forward to meeting new friends! |
| Nov 12, 2024 | Excited to Attend EMNLP 2024! See you in Miami |
selected publications
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- Under Review
Latent Geographies: Joint Embeddings of Text and Visual Cues for Social Media GeolocationOct 2024 - You don’t need a personality test to know these models are unreliable: Assessing the Reliability of Large Language Models on Psychometric InstrumentsIn Proceedings of the 2024 Conference of the North American Chapter of the Association for Computational Linguistics (NAACL), Jun 2024