2016

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Subtopic Mining Based on Three-Level Hierarchical Search Intentions
Se-Jong Kim | Jaehun Shin | Jong-Hyeok Lee
Advances in Information Retrieval - 38th European Conference on IR Research, ECIR 2016, Padua, Italy, March 20-23, 2016. Proceedings

2015

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Subtopic mining using simple patterns and hierarchical structure of subtopic candidates from web documents
Se-Jong Kim | Jong-Hyeok Lee
2015 Volume 51 Issue 6

2014

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Identifying top news stories based on their popularity in the blogosphere
Yeha Lee | Jong-Hyeok Lee
2014 Volume 17 Issue 4

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The KLE's Subtopic Mining System for the NTCIR-11 IMine Task
Se-Jong Kim | Jaehun Shin | Jong-Hyeok Lee
Proceedings of the 11th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR-11, National Center of Sciences, Tokyo, Japan, December 9-12, 2014

2013

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Hierarchical subtopic mining for topic annotation
Se-Jong Kim | Ki-Young Shin | Jong-Hyeok Lee
ESAIR'13, Proceedings of the Sixth International Workshop on Exploiting Semantic Annotations in Information Retrieval, co-located with CIKM 2013, San Francisco, CA, USA, October 28, 2013

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The KLE's Subtopic Mining System for the NTCIR-10 INTENT-2 Task
Se-Jong Kim | Jong-Hyeok Lee
Proceedings of the 10th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR-10, National Center of Sciences, Tokyo, Japan, June 18-21, 2013

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Subtopic Mining Based on Head-Modifier Relation and Co-occurrence of Intents Using Web Documents
Se-Jong Kim | Jong-Hyeok Lee
Information Access Evaluation. Multilinguality, Multimodality, and Visualization - 4th International Conference of the CLEF Initiative, CLEF 2013, Valencia, Spain, September 23-26, 2013. Proceedings

2012

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Utilizing local evidence for blog feed search
Yeha Lee | Seung-Hoon Na | Jong-Hyeok Lee
2012 Volume 15 Issue 2

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Method of Mining Subtopics Using Dependency Structure and Anchor Texts
Se-Jong Kim | Jong-Hyeok Lee
String Processing and Information Retrieval - 19th International Symposium, SPIRE 2012, Cartagena de Indias, Colombia, October 21-25, 2012. Proceedings

2011

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The KLE's Subtopic Mining System for the NTCIR-9 INTENT Task
Se-Jong Kim | Hwidong Na | Jong-Hyeok Lee
Proceedings of the 9th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-9, National Center of Sciences, Tokyo, Japan, December 6-9, 2011

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POSTECH's Statistical Machine Translation Systems for NTCIR-9 PatentMT Task (English-to-Japanese)
Hwidong Na | Jinji Li | Se-Jong Kim | Jong-Hyeok Lee
Proceedings of the 9th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-9, National Center of Sciences, Tokyo, Japan, December 6-9, 2011

2010

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The POSTECH's Statistical Machine Translation Systems for the NTCIR-8 Patent Translation Task
Hwidong Na | Hankyoung Kim | Jong-Hyeok Lee
Proceedings of the 8th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-8, National Center of Sciences, Tokyo, Japan, June 15-18, 2010

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Opinion Analysis for NTCIR8 at POSTECH
Hun-Young Jung | Jungi Kim | Jong-Hyeok Lee
Proceedings of the 8th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-8, National Center of Sciences, Tokyo, Japan, June 15-18, 2010

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TREC 2010 Blog Track: Top Stories Identification
Yeha Lee | Woosang Song | Hun-Young Jung | Vinh Tao Thanh | Jong-Hyeok Lee
Proceedings of The Nineteenth Text REtrieval Conference, TREC 2010, Gaithersburg, Maryland, USA, November 16-19, 2010

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Mining the blogosphere for top news stories identification
Yeha Lee | Hun-Young Jung | Woosang Song | Jong-Hyeok Lee
Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010

2009

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On co-authorship for author disambiguation
In-Su Kang | Seung-Hoon Na | Seungwoo Lee | Hanmin Jung | Pyung Kim | Won-Kyung Sung | Jong-Hyeok Lee
2009 Volume 45 Issue 1

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POSTECH at TREC 2009 Blog Track: Top Stories Identification
Yeha Lee | Hun-Young Jung | Woosang Song | Jong-Hyeok Lee
Proceedings of The Eighteenth Text REtrieval Conference, TREC 2009, Gaithersburg, Maryland, USA, November 17-20, 2009

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An improved feedback approach using relevant local posts for blog feed retrieval
Yeha Lee | Seung-Hoon Na | Jong-Hyeok Lee
Proceedings of the 18th ACM Conference on Information and Knowledge Management, CIKM 2009, Hong Kong, China, November 2-6, 2009

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DiffPost: Filtering Non-relevant Content Based on Content Difference between Two Consecutive Blog Posts
Sang-Hyob Nam | Seung-Hoon Na | Yeha Lee | Jong-Hyeok Lee
Advances in Information Retrieval, 31th European Conference on IR Research, ECIR 2009, Toulouse, France, April 6-9, 2009. Proceedings

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Improving Opinion Retrieval Based on Query-Specific Sentiment Lexicon
Seung-Hoon Na | Yeha Lee | Sang-Hyob Nam | Jong-Hyeok Lee
Advances in Information Retrieval, 31th European Conference on IR Research, ECIR 2009, Toulouse, France, April 6-9, 2009. Proceedings

2008

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The POSTECH Statistical Machine Translation Systems for NTCIR-7 Patent Translation Task
Jinji Li | Hwidong Na | Hankyong Kim | Chang-Hu Jin | Jong-Hyeok Lee
Proceedings of the 7th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-7, National Center of Sciences, Tokyo, Japan, December 16-19, 2008

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English Opinion Analysis for NTCIR7 at POSTECH
Jungi Kim | Hun-Young Jung | Sang-Hyob Nam | Yeha Lee | Jong-Hyeok Lee
Proceedings of the 7th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-7, National Center of Sciences, Tokyo, Japan, December 16-19, 2008

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KLE at TREC 2008 Blog Track: Blog Post and Feed Retrieval
Yeha Lee | Seung-Hoon Na | Jungi Kim | Sang-Hyob Nam | Hun-Young Jung | Jong-Hyeok Lee
Proceedings of The Seventeenth Text REtrieval Conference, TREC 2008, Gaithersburg, Maryland, USA, November 18-21, 2008

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Applying Completely-Arbitrary Passage for Pseudo-Relevance Feedback in Language Modeling Approach
Seung-Hoon Na | In-Su Kang | Yeha Lee | Jong-Hyeok Lee
Information Retrieval Technology, 4th Asia Infomation Retrieval Symposium, AIRS 2008, Harbin, China, January 15-18, 2008, Revised Selected Papers

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Completely-Arbitrary Passage Retrieval in Language Modeling Approach
Seung-Hoon Na | In-Su Kang | Yeha Lee | Jong-Hyeok Lee
Information Retrieval Technology, 4th Asia Infomation Retrieval Symposium, AIRS 2008, Harbin, China, January 15-18, 2008, Revised Selected Papers

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Exploiting proximity feature in bigram language model for information retrieval
Seung-Hoon Na | Jungi Kim | In-Su Kang | Jong-Hyeok Lee
Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2008, Singapore, July 20-24, 2008

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Query-Based Inter-document Similarity Using Probabilistic Co-relevance Model
Seung-Hoon Na | In-Su Kang | Jong-Hyeok Lee
Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

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Revisit of Nearest Neighbor Test for Direct Evaluation of Inter-document Similarities
Seung-Hoon Na | In-Su Kang | Jong-Hyeok Lee
Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

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Structural Re-ranking with Cluster-Based Retrieval
Seung-Hoon Na | In-Su Kang | Jong-Hyeok Lee
Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

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Improving Term Frequency Normalization for Multi-topical Documents and Application to Language Modeling Approaches
Seung-Hoon Na | In-Su Kang | Jong-Hyeok Lee
Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

2007

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Cluster-based patent retrieval
In-Su Kang | Seung-Hoon Na | Jungi Kim | Jong-Hyeok Lee
2007 Volume 43 Issue 5

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Adaptive document clustering based on query-based similarity
Seung-Hoon Na | In-Su Kang | Jong-Hyeok Lee
2007 Volume 43 Issue 4

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Parsimonious translation models for information retrieval
Seung-Hoon Na | In-Su Kang | Jong-Hyeok Lee
2007 Volume 43 Issue 1

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An empirical study of query expansion and cluster-based retrieval in language modeling approach
Seung-Hoon Na | In-Su Kang | Ji-Eun Roh | Jong-Hyeok Lee
2007 Volume 43 Issue 2

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POSTECH at NTCIR-6: Combining Evidences of Multiple Term Extractions for Mono-lingual and Cross-lingual Retrieval in Korean and Japanese
Seung-Hoon Na | Jungi Kim | Yeha Lee | Jong-Hyeok Lee
Proceedings of the 6th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-6, National Center of Sciences, Tokyo, Japan, May 15-18, 2007

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POSTECH at NTCIR-6 English Patent Retrieval Subtask
Jungi Kim | Yeha Lee | Seung-Hoon Na | Jong-Hyeok Lee
Proceedings of the 6th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-6, National Center of Sciences, Tokyo, Japan, May 15-18, 2007

2006

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Collection-based compound noun segmentation for Korean information retrieval
In-Su Kang | Seung-Hoon Na | Jong-Hyeok Lee
2006 Volume 9 Issue 5

2005

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POSTECH at NTCIR-5: Combining Evidences of Multiple Term Extractions for Mono-lingual and Cross-lingual Retrieval in Korean and Japanese
Seung-Hoon Na | In-Su Kang | Jong-Hyeok Lee
Proceedings of the Fifth NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-5, National Center of Sciences, Tokyo, Japan, December 6-9, 2005

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POSTECH at NTCIR-5 Patent Retrieval: Smoothing Experiments in a Language Modeling Approach to Patent Retrieval
In-Su Kang | Seung-Hoon Na | Jun-Ki Min | Jong-Hyeok Lee
Proceedings of the Fifth NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-5, National Center of Sciences, Tokyo, Japan, December 6-9, 2005

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Effective Query Model Estimation Using Parsimonious Translation Model in Language Modeling Approach
Seung-Hoon Na | In-Su Kang | Ji-Eun Roh | Jong-Hyeok Lee
Information Retrieval Technology, Second Asia Information Retrieval Symposium, AIRS 2005, Jeju Island, Korea, October 13-15, 2005, Proceedings

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An Empirical Study of Query Expansion and Cluster-Based Retrieval in Language Modeling Approach
Seung-Hoon Na | In-Su Kang | Ji-Eun Roh | Jong-Hyeok Lee
Information Retrieval Technology, Second Asia Information Retrieval Symposium, AIRS 2005, Jeju Island, Korea, October 13-15, 2005, Proceedings

2004

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POSTECH Question-Answering Experiments at NTCIR4-QAC
Seung-Hoon Na | In-Su Kang | Jong-Hyeok Lee
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

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Multi-Document Summarization Using Cross-Language Texts
Jung-Min Lim | In-Su Kang | Jong-Hyeok Lee
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

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Combination Approaches in Information Retrieval: Words vs. N-grams and Query Translation vs. Document Translation
In-Su Kang | Seung-Hoon Na | Jong-Hyeok Lee
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

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Estimation of Query Model from Parsimonious Translation Model
Seung-Hoon Na | In-Su Kang | Sin-Jae Kang | Jong-Hyeok Lee
Information Retrieval Technology, Asia Information Retrieval Symposium, AIRS 2004, Beijing, China, October 18-20, 2004, Revised Selected Papers

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Query Model Estimations for Relevance Feedback in Language Modeling Approach
Seung-Hoon Na | In-Su Kang | Kyong-Hi Moon | Jong-Hyeok Lee
Information Retrieval Technology, Asia Information Retrieval Symposium, AIRS 2004, Beijing, China, October 18-20, 2004, Revised Selected Papers

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Sentence Extraction Using Time Features in Multi-document Summarization
Jung-Min Lim | In-Su Kang | Jae-Hak J. Bae | Jong-Hyeok Lee
Information Retrieval Technology, Asia Information Retrieval Symposium, AIRS 2004, Beijing, China, October 18-20, 2004, Revised Selected Papers

2003

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Text categorization based on k-nearest neighbor approach for Web site classification
Oh-Woog Kwon | Jong-Hyeok Lee
2003 Volume 39 Issue 1

2002

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Question Answering Approach Using a WordNet-based Answer Type Taxonomy
Seung-Hoon Na | In-Su Kang | Sang-Yool Lee | Jong-Hyeok Lee
Proceedings of The Eleventh Text REtrieval Conference, TREC 2002, Gaithersburg, Maryland, USA, November 19-22, 2002

2001

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A Corpus-Based Learning Method of Compound Noun Indexing Rules for Korean
Jee-Hyub Kim | Byung-Kwan Kwak | Seungwoo Lee | Gary Geunbae Lee | Jong-Hyeok Lee
2001 Volume 4 Issue 2

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