Changki Lee

2013

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Automatic Korean word spacing using Pegasos algorithm.
Changki Lee|Hyunki Kim
Information Processing and Management 2013 Volume 49 Issue 1

2011

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Named entity recognition using a modified Pegasos algorithm.
Changki Lee|Pum-Mo Ryu|Hyunki Kim
Proceedings of the 20th ACM Conference on Information and Knowledge Management, CIKM 2011, Glasgow, United Kingdom, October 24-28, 2011

2008

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Fixed-threshold SMO for Joint Constraint Learning Algorithm of Structural SVM.
Changki Lee|Hyunki Kim|Myung-Gil Jang
Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2008, Singapore, July 20-24, 2008

2007

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Dependency structure language model for topic detection and tracking.
Changki Lee|Gary Geunbae Lee|Myung-Gil Jang
Information Processing and Management 2007 Volume 43 Issue 5
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Fine-grained named entity recognition and relation extraction for question answering.
Changki Lee|Yi-Gyu Hwang|Myung-Gil Jang
SIGIR 2007: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Amsterdam, The Netherlands, July 23-27, 2007

2006

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Information gain and divergence-based feature selection for machine learning-based text categorization.
Changki Lee|Gary Geunbae Lee
Information Processing and Management 2006 Volume 42 Issue 1
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An effective procedure for constructing a hierarchical text classification system.
Yongwook Yoon|Changki Lee|Gary Geunbae Lee
Journal of the Association for Information Science and Technology (JASIST) 2006 Volume 57 Issue 3
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Fine-Grained Named Entity Recognition Using Conditional Random Fields for Question Answering.
Changki Lee|Yi-Gyu Hwang|Hyo-Jung Oh|Soojong Lim|Jeong Heo|Chung-Hee Lee|Hyeon-Jin Kim|Ji-Hyun Wang|Myung-Gil Jang
Information Retrieval Technology, Third Asia Information Retrieval Symposium, AIRS 2006, Singapore, October 16-18, 2006, Proceedings

2005

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Probabilistic information retrieval model for a dependency structured indexing system.
Changki Lee|Gary Geunbae Lee
Information Processing and Management 2005 Volume 41 Issue 2
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A LF Based Answer Indexing Method for Encyclopedia Question-Answering System.
Hyeon-Jin Kim|Ji-Hyun Wang|Changki Lee|Chung-Hee Lee|Myung-Gil Jang
Information Retrieval Technology, Second Asia Information Retrieval Symposium, AIRS 2005, Jeju Island, Korea, October 13-15, 2005, Proceedings

2003

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Exploring term dependences in probabilistic information retrieval model.
Bong-Hyun Cho|Changki Lee|Gary Geunbae Lee
Information Processing and Management 2003 Volume 39 Issue 4

2002

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POSNIR: Probabilistic Natural Language Information Retrieval System.
Changki Lee|Seungwoo Lee|Gary Geunbae Lee
Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, Automatic Text Summarization and Question Answering, NTCIR-3, Tokyo, Japan, October 8-10, 2002

2001

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SiteQ: Engineering High Performance QA System Using Lexico-Semantic Pattern Matching and Shallow NLP.
Gary Geunbae Lee|Jungyun Seo|Seungwoo Lee|Hanmin Jung|Bong-Hyun Cho|Changki Lee|Byung-Kwan Kwak|Jeongwon Cha|Dongseok Kim|Joohui An|Harksoo Kim|Kyungsun Kim
Proceedings of The Tenth Text REtrieval Conference, TREC 2001, Gaithersburg, Maryland, USA, November 13-16, 2001