Enhanced Prediction Algorithm for Item-Based Collaborative Filtering Recommendation. - Heung-Nam Kim; Ae-Ttie Ji; GeunSik Jo (EC-Web, 2006)

Distributed Collaborative Filtering for Robust Recommendations Against Shilling Attacks. - Ae-Ttie Ji; Cheol Yeon; Heung-Nam Kim; GeunSik Jo (Canadian AI, 2007)

Collaborative Tagging in Recommender Systems. - Ae-Ttie Ji; Cheol Yeon; Heung-Nam Kim; GeunSik Jo (Australian Conference on Artificial Intelligence, 2007)

Semantic Web Approach in Designing a Collaborative E-Item Bank System. - Heung-Nam Kim; Ae-Ttie Ji; Soon-Geun Lee; GeunSik Jo (SOFSEM (1), 2007)

A User-Item Predictive Model for Collaborative Filtering Recommendation. - Heung-Nam Kim; Ae-Ttie Ji; Cheol Yeon; GeunSik Jo (User Modeling, 2007)

Error-Based Collaborative Filtering Algorithm for Top-N Recommendation. - Heung-Nam Kim; Ae-Ttie Ji; Hyun-Jun Kim; GeunSik Jo (APWeb/WAIM, 2007)

Collaborative filtering based on collaborative tagging for enhancing the quality of recommendation. - Heung-Nam Kim; Ae-Ttie Ji; Inay Ha; GeunSik Jo (Electron. Commer. Res. Appl., 2010)