Hyewon Choi

2026

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ARHN: Answer-Centric Relabeling of Hard Negatives with Open-Source LLMs for Dense Retrieval.
Stanley Jungkyu Choi|Renfeng Ma|Xiaomeng Song|Hyewon Choi|Jooyoung Choi|Hongtao Tian|Zhumin Chen|Hansol Jang|Xiaomeng Song|Hyewon Choi|Zhaochun Ren|Hyun Kim|Jooyoung Choi|Hongtao Tian|Maarten de Rijke|Chulmin Yun|Zhumin Chen|Hansol Jang|Changwook Jun|Zhaochun Ren|Hyun Kim|Stanley Jungkyu Choi|Renfeng Ma|Maarten de Rijke|Chulmin Yun
Proceedings of the 49th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2026, MelbourneVICAustralia, July 20-24, 2026

2021

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Using Topic Modeling and Adversarial Neural Networks for Fake News Video Detection.
Hyewon Choi|Youngjoong Ko
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021
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Query Reformulation for Descriptive Queries of Jargon Words Using a Knowledge Graph based on a Dictionary.
Bosung Kim|Hyewon Choi|Haeun Yu|Youngjoong Ko
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021