Yohan Jo

If you're interested in the following research topics and are considering graduate studies at GSDS, I encourage you to intern at my lab (ideally for more than one semester prior to your graduate application). Please email me your transcript, CV, and research interests.

• Enhancing AI agents' reasoning via reinforcement learning and simulations
• AI agents that interact with physical devices, software tools, and multimodal data
• Inner workings of diffusion language models and vision-language-action models / Model surgery
• Pluralistic value alignment and steering for AI agents
• Other AI topics

For those interested in an internship or co-advising for 융합전공, I recommend taking my "Large Language Models and Conversational AI (거대언어모델과 대화형 인공지능)" course.

Courses

• Large Language Models and Conversational AI (2025-2, 2025-1, 2024-2, 2023-2)
• Multimodal Generative Diffusion Models (2025-2)
• Inner Workings of Language Models: Interpretation and Intervention (2025-1)
• Computing for Data Science 1 (2025-2, 2025-1, 2024-2, 2024-1)

Research Topics

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Publications

1. In-N-Out: A Parameter-Level API Graph Dataset for Tool Agents arXiv

   Seungkyu Lee, Narim Kim, Yohan Jo

   [TACL] Transactions of the Association for Computational Linguistics, 2026 (To Appear)

2. ThinkBrake: Mitigating Overthinking in Tool Reasoning arXiv

   Minjae Oh, Sangjun Song, Seungkyu Lee, Sungmin Jo, Yohan Jo

   Workshop on Efficient Reasoning @ NeurIPS 2025

3. 도구 증강 에이전트: 자율성에서 상호작용으로의 진화 PDF

   Yohan Jo, Jonggeun Lee

   정보과학회지 제43권 제11호 통권 제438호 특집원고, 2025

4. MatKV: Trading Compute for Flash Storage in LLM Inference

   Kun-Woo Shin, Jay H. Park, Moonwook Oh, Yohan Jo, Jaeyoung Do, Sang-Won Lee

   [ICDE] 2026 IEEE 42nd International Conference on Data Engineering, 2026

5. Sparse and Dense Retrievers Learn Better Together: Joint Sparse-Dense Optimization for Text-Image Retrieval Paper arXiv

   Jonghyun Song, Youngjune Lee, Gyu-Hwung Cho, Ilhyeon Song, Saehun Kim, Yohan Jo

   [CIKM] Proceedings of the 34th ACM International Conference on Information and Knowledge Management, 2025

6. Value Portrait: Assessing Language Models' Values through Psychometrically and Ecologically Valid Items Paper Video Poster

   Jongwook Han, Dongmin Choi, Woojung Song, Eun-Ju Lee, Yohan Jo

   [ACL] Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics, 2025

7. PVP: An Image Dataset for Personalized Visual Persuasion with Persuasion Strategies, Viewer Characteristics, and Persuasiveness Ratings Paper Video Poster

   Junseo Kim, Jongwook Han, Dongmin Choi, Jongwook Yoon, Eun-Ju Lee, Yohan Jo

   [ACL] Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics, 2025

8. Dialogue Systems for Emotional Support via Value Reinforcement Paper Video Poster Lecture

   Juhee Kim, Chunghu Mok, Jisun Lee, Hyang Sook Kim, Yohan Jo

   [ACL] Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics, 2025

9. Improving Dialogue State Tracking through Combinatorial Search for In-Context Examples Paper Video Poster

   Haesung Pyun, Yoonah Park, Yohan Jo

   [ACL] Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics, 2025

10. Generating Plausible Distractors for Multiple-Choice Questions via Student Choice Prediction Paper Video Poster

    Yooseop Lee, Suin Kim, Yohan Jo

    [ACL] Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics, 2025

11. Knowledge Tracing in Programming Education Integrating Students' Questions Paper Video Poster

    Doyoun Kim, Suin Kim, Yohan Jo

    [ACL] Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics, 2025

12. Context-Robust Knowledge Editing for Language Models Paper Video Poster

    HaeWon Park, Gyubin Choi, Minjun Kim, Yohan Jo

    [ACL-Findings] Findings of the Association for Computational Linguistics: ACL, 2025

13. The Open Argument Mining Framework Paper

    Debela Gemechu, Ramon Ruiz-Dolz, Somaye Moslemnejad, Eimear Maguire, Yohan Jo, John Lawrence, Chris Reed

    [ACL-Demo] Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (System Demonstrations), 2025

14. ToolDial: Multi-turn Dialogue Generation Method for Tool-Augmented Language Models Paper

    Jeonghoon Shim, Gyuhyeon Seo, Cheongsu Lim, Yohan Jo

    [ICLR] The Thirteenth International Conference on Learning Representations, 2025

15. KMI: A Dataset of Korean Motivational Interviewing Dialogues for Psychotherapy Paper

    Hyunjong Kim, Suyeon Lee, Yeongjae Cho, Eunseo Ryu, Yohan Jo, Suran Seong, Sungzoon Cho

    [NAACL] The 2025 Annual Conference of the Nations of the Americas Chapter of the ACL, 2025

16. Towards Lifelong Dialogue Agents via Timeline-based Memory Management Paper

    Kai Tzu-iunn Ong, Namyoung Kim, Minju Gwak, Hyungjoo Chae, Taeyoon Kwon, Yohan Jo, Seung-won Hwang, Dongha Lee, Jinyoung Yeo

    [NAACL] The 2025 Annual Conference of the Nations of the Americas Chapter of the ACL, 2025

17. Ask Optimal Questions: Aligning Large Language Models with Retriever's Preference in Conversational Search Paper

    Chanwoong Yoon, Gangwoo Kim, Byeongguk Jeon, Sungdong Kim, Yohan Jo, Jaewoo Kang

    [NAACL-Findings] Findings of the Association for Computational Linguistics: NAACL, 2025

18. Model-based Preference Optimization in Abstractive Summarization without Human Feedback Paper

    Jaepill Choi, Kyubyung Chae, Jiwoo Song, Yohan Jo, Taesup Kim

    [EMNLP] Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing, 2024

19. Generalizing Visual Question Answering from Synthetic to Human-Written Questions via a Chain of QA with a Large Language Model Paper

    Taehee Kim, Yeongjae Cho, Heejun Shin, Yohan Jo, Dongmyung Shin

    [ECAI] Proceedings of the 27th European Conference on Artificial Intelligence, 2024

20. Publicly Shareable Clinical Large Language Model Built on Synthetic Clinical Notes Paper

    Sunjun Kweon, Junu Kim, Jiyoun Kim, Sujeong Im, Eunbyeol Cho, Seongsu Bae, Jungwoo Oh, Gyubok Lee, Jong Hak Moon, Seng Chan You, Seungjin Baek, Chang Hoon Han, Yoon Bin Jung, Yohan Jo, Edward Choi

    [ACL-Findings] Findings of the Association for Computational Linguistics: ACL, 2024

21. Mitigating Hallucination in Abstractive Summarization with Domain-Conditional Mutual Information Paper

    Kyubyung Chae, Jaepill Choi, Yohan Jo, Taesup Kim

    [NAACL-Findings] Findings of the Association for Computational Linguistics: NAACL, 2024

22. From Values to Opinions: Predicting Human Behaviors and Stances Using Value-Injected Large Language Models Paper Video

    Dongjun Kang, Joonsuk Park, Yohan Jo, JinYeong Bak

    [EMNLP] Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing, 2023

23. KG-GPT: A General Framework for Reasoning on Knowledge Graphs Using Large Language Models Paper Video

    Jiho Kim, Yeonsu Kwon, Yohan Jo, Edward Choi

    [EMNLP-Findings] Findings of the Association for Computational Linguistics: EMNLP, 2023

24. Multi-User MultiWOZ: Task-Oriented Dialogues among Multiple Users Paper Video

    Yohan Jo, Xinyan Zhao, Arijit Biswas, Nikoletta Basiou, Vincent Auvray, Nikolaos Malandrakis, Angeliki Metallinou, Alexandros Potamianos

    [EMNLP-Findings] Findings of the Association for Computational Linguistics: EMNLP, 2023

25. A Zero-Shot Approach for Multi-User Task-Oriented Dialog Generation Paper

    Shiv Surya, Yohan Jo, Arijit Biswas, Alexandros Potamianos

    [INLG] Proceedings of the 16th International Natural Language Generation Conference, 2023

26. FactKG: Fact Verification via Reasoning on Knowledge Graphs Paper

    Jiho Kim, Sungjin Park, Yeonsu Kwon, Yohan Jo, James Thorne, Edward Choi

    [ACL] Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics, 2023

27. Open-WikiTable: Dataset for Open Domain Question Answering with Complex Reasoning over Table Paper

    Sunjun Kweon, Yeonsu Kwon, Seonhee Cho, Yohan Jo, Edward Choi

    [ACL-Findings] Findings of the Association for Computational Linguistics: ACL, 2023

28. A Closer Look at the Intervention Procedure of Concept Bottleneck Models Paper

    Sungbin Shin, Yohan Jo, Sungsoo Ahn, Namhoon Lee

    [ICML] Proceedings of the 40th International Conference on Machine Learning, 2023

29. Argument Mining for Review Helpfulness Prediction Paper

    Zaiqian Chen, Daniel Verdi do Amarante, Jenna Donaldson, Yohan Jo, Joonsuk Park

    [EMNLP] Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing, 2022

30. Status Biases in Deliberation Online: Evidence from a Randomized Experiment on ChangeMyView Paper

    Emaad Manzoor, Yohan Jo, Alan L. Montgomery

    [EMNLP-Findings] Findings of the Association for Computational Linguistics: EMNLP, 2022

31. Toward Computational Argumentation with Reasoning and Knowledge PDF

    Yohan Jo

    Ph.D. Thesis, 2021

32. Knowledge-Enhanced Evidence Retrieval for Counterargument Generation Paper

    Yohan Jo, Haneul Yoo, JinYeong Bak, Alice Oh, Chris Reed, Eduard Hovy

    [EMNLP-Findings] Findings of the Association for Computational Linguistics: EMNLP, 2021

33. Classifying Argumentative Relations Using Logical Mechanisms and Argumentation Schemes Paper Git

    Yohan Jo, Seojin Bang, Chris Reed, Eduard Hovy

    [TACL] Transactions of the Association for Computational Linguistics, vol. 9, 2021

34. Detecting Attackable Sentences in Arguments Paper

    Yohan Jo, Seojin Bang, Emaad Manzoor, Eduard Hovy, Chris Reed

    [EMNLP] Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing, 2020

35. Extracting Implicitly Asserted Propositions in Argumentation Paper

    Yohan Jo, Jacky Visser, Chris Reed, Eduard Hovy

    [EMNLP] Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing, 2020

36. Machine-Aided Annotation for Fine-Grained Proposition Types in Argumentation Paper

    Yohan Jo, Elijah Mayfield, Chris Reed, Eduard Hovy

    [LREC] Proceedings of the 12th International Conference on Language Resources and Evaluation, 2020

37. A Cascade Model for Proposition Extraction in Argumentation Paper

    Yohan Jo, Jacky Visser, Chris Reed, Eduard Hovy

    Proceedings of the 6th Workshop on Argument Mining, 2019

38. Using Functional Schemas to Understand Social Media Narratives Paper

    Xinru Yan, Aakanksha Naik, Yohan Jo, Carolyn P. Rose

    Proceedings of the Second Workshop on Storytelling, 2019

39. Attentive Interaction Model: Modeling Changes in View in Argumentation Paper Homepage

    Yohan Jo, Shivani Poddar, Byungsoo Jeon, Qinlan Shen, Carolyn P. Rose, Graham Neubig

    [NAACL] Proceedings of the 2018 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, 2018

40. Perceptions of Censorship and Moderation in Political Debate Forums Paper Homepage

    Qinlan Shen, Michael Yoder, Yohan Jo, Carolyn P. Rose

    [ICWSM] Proceedings of the 12th International AAAI Conference on Web and Social Media, 2018

41. Time Series Analysis of Clickstream Logs from Online Courses Report

    Yohan Jo*, Keith Maki*, Gaurav Tomar*

    arXiv:1809.04177 [cs.HC], 2018

42. Roles and Success in Wikipedia Talk Pages: Identifying Latent Patterns of Behavior Paper

    Keith Maki, Michael Miller Yoder, Yohan Jo, Carolyn P. Rose

    [IJCNLP] Proceedings of the 8th International Joint Conference on Natural Language Processing, 2017

    Best Student Paper Award

43. Modeling Dialogue Acts with Content Word Filtering and Speaker Preferences Paper Homepage

    Yohan Jo, Michael Miller Yoder, Hyeju Jang, Carolyn P. Rose

    [EMNLP] Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing, 2017

44. Combining LSTM and Latent Topic Modeling for Mortality Prediction Report

    Yohan Jo, Lisa Lee, Shruti Palaskar

    arXiv:1709.02842 [cs.CL], 2017

45. Simplifying the Bible and Wikipedia Using Statistical Machine Translation Report

    Yohan Jo

    arXiv:1703.08646 [cs.CL], 2017

46. Metaphor Detection Using Topic Transition, Emotion, and Cognition in Context Paper

    Hyeju Jang, Yohan Jo, Michael Miller, Qinlan Shen, Seungwhan Moon, Carolyn P. Rose

    [ACL] Proceedings of the 54th Annual Meeting of the Association for Computational Linguistics, 2016

47. Expediting Support for Social Learning with Behavior Modeling Paper TechReport

    Yohan Jo, Gaurav Tomar, Oliver Ferschke, Carolyn P. Rose, Dragan Gasevic

    [EDM] Proceedings of the 9th International Conference on Educational Data Mining, 2016

48. Pipeline for Expediting Learning Analytics and Student Support from Data in Social Learning Paper Poster

    Yohan Jo, Gaurav Tomar, Oliver Ferschke, Carolyn P. Rose, Dragan Gasevic

    [LAK] Poster at the 6th International Learning Analytics and Knowledge Conference (LAK), 2016

49. Time Series Analysis of Nursing Notes for Mortality Prediction via State Transition Topic Model Paper Slides Home

    Yohan Jo, Natasha Loghmanpour, Carolyn P. Rose

    [CIKM] Proceedings of the 24th ACM International Conference on Information and Knowledge Management, 2015

50. Metaphor Detection in Discourse Paper

    Hyeju Jang, Seungwhan Moon, Yohan Jo, Carolyn P. Rose

    [SIGDial] Proceedings of the 16th Annual Meeting of the Special Interest Group on Discourse and Dialogue, 2015

51. Aspect and Sentiment Unification Model for Online Review Analysis Paper Home

    Yohan Jo, Alice Oh

    [WSDM] Proceedings of the 4th ACM International Conference on Web Search and Data Mining, 2011

    Test-of-Time Award (Honorable Mention)

52. Do you feel what I feel? Social Aspects of Emotions in Twitter Conversations Paper

    Suin Kim, JinYeong Bak, Yohan Jo, Alice Oh

    [Workshop] Workshop on Computational Social Science and the Wisdom of Crowds, 2011

53. Analysis of Twitter Lists as a Potential Source for Discovering Latent Characteristics of Users Paper

    Dongwoo Kim, Yohan Jo, Alice Oh

    [Workshop] Workshop on Microblogging, 2010

54. Learning Influence Propagation of Personal Blogs with Content and Network Analyses Paper

    Il-Chul Moon, Dongwoo Kim, Yohan Jo, Alice Oh

    [SocialCom] Proceedings of the 2010 IEEE Second International Conference on Social Computing, 2010

Preprints

1. Future Policy Aware Preference Learning for Mathematical Reasoning arXiv

   Minjae Oh, Yunho Choi, Dongmin Choi, Yohan Jo

   Under Review

2. Knowledge Editing with Subspace-Aware Key-Value Mappings arXiv

   Haewon Park, Sangwoo Kim, Yohan Jo

   Under Review

3. Bridging the Knowledge-Prediction Gap in LLMs on Multiple-Choice Questions arXiv

   Yoonah Park, Haesung Pyun, Yohan Jo

   Under Review

4. Non-Collaborative User Simulators for Tool Agents arXiv

   Jeonghoon Shim, Woojung Song, Cheyon Jin, Seungwon Kook, Yohan Jo

   Under Review

5. SimuHome: A Temporal- and Environment-Aware Benchmark for Smart Home LLM Agents arXiv

   Gyuhyeon Seo, Jungwoo Yang, Junseong Pyo, Narim Kim, Jonggeun Lee, Yohan Jo

   Under Review

6. Dual Mechanisms of Value Expression: Intrinsic vs. Prompted Values in LLMs arXiv

   Jongwook Han, Jongwon Lim, Injin Kong, Yohan Jo

   Under Review

7. Don't Adapt Small Language Models for Tools; Adapt Tool Schemas to the Models arXiv

   Jonggeun Lee, Woojung Song, Jongwook Han, Haesung Pyun, Yohan Jo

   Under Review

8. Quantifying Data Contamination in Psychometric Evaluations of LLMs arXiv

   Jongwook Han, Woojung Song, Jonggeun Lee, Yohan Jo

   Under Review

9. Established Psychometric vs. Ecologically Valid Questionnaires: Rethinking Psychological Assessments in Large Language Models arXiv

   Dongmin Choi, Jongwook Han, Woojung Song, Eun-Ju Lee, Yohan Jo

   Under Review

10. Psychometric Item Validation Using Virtual Respondents with Trait-Response Mediators arXiv

    Sungjib Lim, Woojung Song, Eun-Ju Lee, Yohan Jo

    Under Review

11. ProPerSim: Developing Proactive and Personalized AI Assistants through User-Assistant Simulation arXiv

    Jiho Kim, Junseong Choi, Woosog Chay, Daeun Kyung, Yeonsu Kwon, Yohan Jo, Edward Choi

    Under Review

12. DialSim: A Real-Time Simulator for Evaluating Long-Term Dialogue Understanding of Conversational Agents arXiv

    Jiho Kim, Woosog Chay, Hyeonji Hwang, Daeun Kyung, Hyunseung Chung, Eunbyeol Cho, Yohan Jo, Edward Choi

    arXiv:2406.13144 [cs.AI], 2024