• DB Lab Winter MT, Dec 26-27, 2003

• The 2004 International Conference on Infomation and Knowledge Engineering, June 21~24, 2004

• DB Lab Winter MT, Jan 17~18, 2005
• The 21st International Conference on Data Engineering ( ICDE 2005 ) April 5~8, 2005

• 제 13회 휴먼테크 논문 대상, Feb 15, 2007

• DB Lab Winter Workshop, Jan 17~18, 2009
• The 35th International Conference on Very Large Data Bases ( VLDB 2009 ), Aug 24~28, 2009