Jiseung Hong
MIIS student @ Carnegie Mellon University
Pittsburgh, Pennsylvania 15212
I am a Master of Science in Intelligent Information Systems (MIIS) student at Carnegie Mellon University, focusing on Human–Agent Interaction (machine learning; natural language processing). I’m broadly interested in designing and analyzing LLM agents that behave robustly and transparently in human-facing environments.
I am currently advised by Prof. Graham Neubig in CMU, focusing LLMs as coding agents. My recent research includes OpenHands PR-Arena, a platform for evaluating and benchmarking agentic coding assistants through paired pull request (PR) generations, and SYCON-Bench, a benchmark for analyzing sycophancy in multi-turn dialogues. I am also working with Prof. Jinho Choi in Emory University, designing an educational conversational AI.
I received my Bachelor’s degree in Computer Science from Korea Advanced Institute of Science and Technology (KAIST), where I studied machine learning, NLP, and human–computer interaction. I’m very grateful to Prof. Minsuk Kang, Prof. Jeehoon Kang, and NC Soft mentor Hochang Lee for their guidance.
Also check out: LinkedIn / GitHub / Paper @ EMNLP 2025 / Paper @ LREC-COLING 2024 / Email me
news
| Aug 23, 2025 | 🎓 Teaching Assistant for Introductory NLP I’ll be serving as a Teaching Assistant under Prof. David Mortensen for the Introductory NLP course at Carnegie Mellon University for Fall 2025. |
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| May 28, 2025 | 📢 New Paper Alert (Accepted by EMNLP 2025 Findings (Suzhou, China)) Measuring Sycophancy of Language Models in Multi-turn Dialogues Our paper is out! We present SYCON Bench, a new benchmark designed to evaluate sycophantic behavior in language models during real-world, multi-turn conversations. Huge thanks to my amazing co-authors Grace Byun, Seungone Kim, and Prof. Kai Shu for the collaboration! 🙌 📝 Read it on arXiv |
| Aug 15, 2024 | Joined OpenHands team (Directed Study under Prof. Graham Neubig) Contributions: |
| May 20, 2024 | 📢 New Paper Alert (Accepted by LREC-COLING 2024 (Turin, Italy)) Korean Bio-Medical Corpus (KBMC) for Medical Named Entity Recognition 📝 Read it on arXiv |
| Mar 07, 1999 | Educational Journey Mar. 1999 Born in Seoul, Republic of Korea. 2004 ~ 2006 Hardy Kindergarten, Boston, Massachusetts 2006 ~ 2011 WonMyong Elementary School 2012 ~ 2014 Seoil Middle School 2015 ~ 2016 Sejong Science High School Feb. 2017 ~ Feb. 2024 KAIST
Internship
Internship
Internship
Republic of Korea Air Force Sep. 2024 ~ Dec. 2025 Carnegie Mellon University
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