Method of Profile Storage for Improving Recommendation Accuracy on Ubiquitous Computing. - Changbok Jang; Jeongseok Kim; Hyokyung Chang; Eui-In Choi; Bong-hoi Kim; Gang-Soo Lee (FGCN (2), 2008)

Auditing System Using Rule-Based Reasoning in Ubiquitous Computing. - Moo-hun Lee; Sunghoon Cho; Hyokyung Chang; Junghee Jo; Hoiyoung Jung; Eui-In Choi (ICCSA Workshops, 2008)

Rule-Based Auditing System for Security Assurance in Ubiquitous Computing. - Sungdo Park; Bokman Jang; Hyokyung Chang; Bong-hoi Kim; Eui-In Choi (Security and Management, 2009)

Monitoring-Control System Using Multi-modal Interaction Agent in Ubiquitous Environment. - Sungdo Park; Jeongseok Kim; Hyokyung Chang; Bokman Jang; Eui-In Choi (FGIT-FGCN, 2009)

Challenges and Security in Cloud Computing. - Hyokyung Chang; Eui-In Choi (FGIT-FGCN (2), 2010)

A Study of Context-Awareness RBAC Model Using User Profile on Ubiquitous Computing. - Bokman Jang; Sungdo Park; Hyokyung Chang; Hyosik Ahn; Eui-In Choi (FGIT-FGCN (2), 2010)

A Design of the Transcoding Middleware for the Mobile Browsing Service. - Sungdo Park; Hyokyung Chang; Bokman Jang; Hyosik Ahn; Eui-In Choi (FGIT-FGCN (2), 2010)

User Authentication Platform Using Provisioning in Cloud Computing Environment. - Hyosik Ahn; Hyokyung Chang; Changbok Jang; Eui-In Choi (ACN, 2011)

Profile for Effective Service Management on Mobile Cloud Computing. - Changbok Jang; Hyokyung Chang; Hyosik Ahn; Yong Ho Kang; Eui-In Choi (ACN, 2011)

Authentication Platform for Provisioning in Cloud Computing. - Hyokyung Chang; Changbok Jang; Hyosik Ahn; Eui-In Choi (ICHIT (2), 2011)

Design of Intelligence Mobile Cloud Service Platform Based Context-Aware. - Hyokyung Chang; Eui-In Choi (UCMA (2), 2011)

User Authentication in Cloud Computing. - Hyokyung Chang; Eui-In Choi (UCMA (2), 2011)