Qtag: introducing the qualitative tagging system. - Sung Eob Lee; Steve SangKi Han (Hypertext, 2007)

Qtag: tagging as a means of rating, opinion-expressing, sharing and visualizing. - Sung Eob Lee; Dong Kwan Son; Steve SangKi Han (SIGDOC, 2007)

A Study of Online (Digital) Reputation in Blogosphere based on Relationship and Activity. - GiHong Kim; Steve SangKi Han (CW, 2008)

An Analytical Way to Find Influencers on Social Networks and Validate their Effects in Disseminating Social Games. - Erica Suyeon Kim; Steve SangKi Han (ASONAM, 2009)

Finding Elite Voters in Daum View: Using Media Credibility Measures. - Kanghak Kim; Hyunwoo Park; Joonseong Ko; Young-rin Kim; Steve SangKi Han (BlogTalk, 2009)

Study on Collective Memory in the Blogosphere. - Young Sik Kim; Kibeom Lee; Steve SangKi Han (CSE (4), 2009)

Open Editing Algorithm: A Collaborative News Promotion Algorithm Based on Users' Voting History. - Joonseong Ko; Kanghak Kim; Ohyeon Kweon; Jongwook Kim; Young-rin Kim; Steve SangKi Han (CSE (4), 2009)

Using Qtag to Extract Dominant Public Opinion in Very Large-Scale Conversation. - Sung Eob Lee; Taeksoo Chun; Steve SangKi Han (CSE (4), 2009)

Ranking Social News Articles Based on Voter Credibility. - Kanghak Kim; Geonhyeok Go; Hyunwoo Park; Steve SangKi Han (ICWSM, 2010)

Using Online Media Sharing Behavior as Implicit Feedback for Collaborative Filtering. - Geonhyeok Go; Joonhyuk Yang; Hyunwoo Park; Steve SangKi Han (SocialCom/PASSAT, 2010)

A Geometric Pattern-based Method to Build Hierarchies of Geo-Referenced Tags. - Donggi Jung; Hyunwoo Park; Ryong Maeng; Steve SangKi Han (SocialCom/PASSAT, 2010)