Research Interests
Natural Language Processing, Argumentation and Persuasion, Conversational AI
Publications
FactKG: Fact Verification via Reasoning on Knowledge Graph (To Appear)
[ACL] Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics, 2023
Open-WikiTable: Dataset for Open Domain Question Answering with Complex Reasoning over Table (To Appear)
[ACL-Findings] Findings of the Association for Computational Linguistics: ACL, 2023
A Closer Look at the Intervention Procedure of Concept Bottleneck Models (To Appear)
[ICML] Proceedings of the 40th International Conference on Machine Learning, 2023
Argument Mining for Review Helpfulness Prediction [Paper]
[EMNLP] Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing, 2022
Status Biases in Deliberation Online: Evidence from a Randomized Experiment on ChangeMyView [Paper]
[EMNLP-Findings] Findings of the Association for Computational Linguistics: EMNLP, 2022
Toward Computational Argumentation with Reasoning and Knowledge [PDF]
Ph.D. Thesis, 2021
Knowledge-Enhanced Evidence Retrieval for Counterargument Generation [Paper]
[EMNLP-Findings] Findings of the Association for Computational Linguistics: EMNLP, 2021
Classifying Argumentative Relations Using Logical Mechanisms and Argumentation Schemes [Paper|Git]
[TACL] Transactions of the Association for Computational Linguistics, vol. 9, 2021
Detecting Attackable Sentences in Arguments [Paper]
[EMNLP] Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing, 2020
Extracting Implicitly Asserted Propositions in Argumentation [Paper]
[EMNLP] Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing, 2020
Machine-Aided Annotation for Fine-Grained Proposition Types in Argumentation [Paper]
[LREC] Proceedings of the 12th International Conference on Language Resources and Evaluation, 2020
A Cascade Model for Proposition Extraction in Argumentation [Paper]
Proceedings of the 6th Workshop on Argument Mining, 2019
Using Functional Schemas to Understand Social Media Narratives [Paper]
Proceedings of the Second Workshop on Storytelling, 2019
Attentive Interaction Model: Modeling Changes in View in Argumentation [Paper|Homepage]
[NAACL] Proceedings of the 2018 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, 2018
Perceptions of Censorship and Moderation in Political Debate Forums [Paper|Homepage]
[ICWSM] Proceedings of the 12th International AAAI Conference on Web and Social Media, 2018
Time Series Analysis of Clickstream Logs from Online Courses [Report]
arXiv:1809.04177 [cs.HC], 2018
Roles and Success in Wikipedia Talk Pages: Identifying Latent Patterns of Behavior [Paper]
[IJCNLP] Proceedings of the 8th International Joint Conference on Natural Language Processing, 2017
Best Student Paper Award
Modeling Dialogue Acts with Content Word Filtering and Speaker Preferences [Paper|Homepage]
[EMNLP] Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing, 2017
Combining LSTM and Latent Topic Modeling for Mortality Prediction [Report]
arXiv:1709.02842 [cs.CL], 2017
Simplifying the Bible and Wikipedia Using Statistical Machine Translation [Report]
arXiv:1703.08646 [cs.CL], 2017
Metaphor Detection Using Topic Transition, Emotion, and Cognition in Context [Paper]
[ACL] Proceedings of the 54th Annual Meeting of the Association for Computational Linguistics, 2016
Expediting Support for Social Learning with Behavior Modeling [Paper|TechReport]
[EDM] Proceedings of the 9th International Conference on Educational Data Mining, 2016
Pipeline for Expediting Learning Analytics and Student Support from Data in Social Learning [Paper|Poster]
[LAK] Poster at the 6th International Learning Analytics and Knowledge Conference (LAK), 2016
Time Series Analysis of Nursing Notes for Mortality Prediction via State Transition Topic Model [Paper|Slides|Home]
[CIKM] Proceedings of the 24th ACM International Conference on Information and Knowledge Management, 2015
Metaphor Detection in Discourse [Paper]
[SIGDial] Proceedings of the 16th Annual Meeting of the Special Interest Group on Discourse and Dialogue, 2015
Aspect and Sentiment Unification Model for Online Review Analysis [Paper|Home]
[WSDM] Proceedings of the 4th ACM International Conference on Web Search and Data Mining, 2011
Do you feel what I feel? Social Aspects of Emotions in Twitter Conversations [Paper]
[Workshop] Workshop on Computational Social Science and the Wisdom of Crowds, 2011
Analysis of Twitter Lists as a Potential Source for Discovering Latent Characteristics of Users [Paper]
[Workshop] Workshop on Microblogging, 2010
Learning Influence Propagation of Personal Blogs with Content and Network Analyses [Paper]
[SocialCom] Proceedings of the 2010 IEEE Second International Conference on Social Computing, 2010
Awards
- WSDM Test of Time Award Honorable Mention @ International Conference on Web Search and Data Mining (2023)
- CMU GuSH Research Grants (2019–2021)
- CMU Presidential Fellowship (2019–2020)
- Kwanjeong Scholarship by Kwanjeong Educational Foundation (2014–2020)
- IJCNLP Best Student Paper Award @ International Joint Conference on Natural Language Processing (2017)
- Outstanding Master's Thesis Award by the KAIST School of Computing (2011)
- Graduation with Honors, Summa Cum Laude (2009)
- National Research Scholarship by the Korea Student Aid Foundation (2009–2011)
- National Scholarship by the Korea Student Aid Foundation (2004–2008)
Education
- Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
- Ph.D. in Language and Information Technologies (Advisor: Prof. Eduard Hovy) (2021)
- M.S. in Language Technologies (Advisor: Prof. Carolyn P. Rosé) (2016)
- Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
- M.S. in Computer Science (Advisor: Prof. Alice Oh) (2011)
- B.S. in Computer Science (2009)
Work
- Applied Scientist, Amazon.com, Inc. (Aug 2021–Present)
- ML Research & NLP Intern, Apple Inc. (June–Aug 2020)
- Research & Development Intern, Educational Testing Service (ETS) (June–July 2017)
- Researcher, Electronics and Telecommunications Research Institute (ETRI) (Feb 2011–July 2014)
- Software Engineering Intern, MirageWorks (June–Aug 2008)
Patents
Apparatus, system, and method for searching for power user in social media
US9582835B2
Apparatus, system, and method for detecting complex issues based on social media analysis
US9524337B2
Apparatus and method for searching information based on Wikipedia's contents
US10037381B2
Processing method for social media issue and server device supporting the same
US9418058B2
Teaching
- Teaching Assistant, Carnegie Mellon University (Spring & Fall 2019)
- Introduction to Natural Language Processing
- Teacher, Pittsburgh Westinghouse Academy 6–12 (TEALS) (Aug 2017–May 2018)
- Programming for high school students at Westinghouse Academy 6–12
- Teacher, Carnegie Library of Pittsburgh (June 2015–June 2016)
- Korean for Pittsburgh residents
- Teacher, Edushare (Feb–May 2010)
- Math for middle school students from low-income families
- Teaching Assistant, KAIST (Spring & Fall 2009)
- Algorithms for undergraduate students in Problem Solving course
Services
- Organizing committee for the 9th Argument Mining Workshop
Talks & Lectures
- KAIST — Guest Lecture for "AI & Society" Course (Feb 2023)
- Seoul National University — Data Science Seminar (Nov 2022)
- Ulsan National Institute of Science and Technology (UNIST) — Guest Lecture for "Artificial Intelligence" Course (Dec 2021)
- Seoul National University — Guest Lecture for "Computing Foundations for Data Science" Course (Nov 2021)
- Gwangju Institute of Science and Technology (GIST) — Integrated Technology Seminar (Nov 2021)
- Workshop on Argumentation Knowledge Graph @ AKBC — Keynote (Oct 2021)
- University of Minnesota, Twin Cities — NLP Seminar (Sept 2021)
- Sungkyunkwan University — AI Seminar (Jul 2021)
- CMU — Guest Lecture for "Computational Semantics for NLP" Course (Apr 2020)
- CMU — Guest Lecture for "Intro to NLP" Course (Apr 2020 & Nov 2019)