Hyun-Kyu Kang Jeong-Oog Lee Heung Seok Jeon Myeong-Cheol Ko Doo-Hyun Kim Ryumduck Oh Wonseog Kang CONDOCS: A Concept-Based Document Categorization System Using Concept-Probability Vector with Thesaurus. 683-691 https://doi.org/10.1007/978-3-540-30583-5_72 2004 conf/ais/2004 AIS db/conf/ais/ais2004.html#KangLJKKOK04