Query Based Summarization Using Non-negative Matrix Factorization. - Sun Park; Ju-Hong Lee; Chan-Min Ahn; Jun Sik Hong; Seok-Ju Chun (KES (3), 2006)

Effective Spatial Characterization System Using Density-Based Clustering. - Chan-Min Ahn; Jae-Hyun You; Ju-Hong Lee; Deok-Hwan Kim (International Conference on Computational Science (2), 2007)

Multi-document Summarization Based on Cluster Using Non-negative Matrix Factorization. - Sun Park; Ju-Hong Lee; Deok-Hwan Kim; Chan-Min Ahn (SOFSEM (1), 2007)

Multi-document Summarization Using Weighted Similarity Between Topic and Clustering-Based Non-negative Semantic Feature. - Sun Park; Ju-Hong Lee; Deok-Hwan Kim; Chan-Min Ahn (APWeb/WAIM, 2007)

Automatic generic document summarization based on non-negative matrix factorization. - Ju-Hong Lee; Sun Park; Chan-Min Ahn; Daeho Kim (Inf. Process. Manag., 2009)

Question answering system with recommendation using fuzzy relational product operator. - Chan-Min Ahn; Ju-Hong Lee; Bumghi Choi; Sun Park (iiWAS, 2010)