Jango (Korean musical instrument), 2010 spring, Daejeon, Korea


Club, 2009 fall, Belo Horizonte, Brazil


Yahoo! party at WWW conference, 2009 spring, Madrid, Spain


Ph.D. viva holding the best paper award plate (ACM IMC), 2008 spring, KAIST, Daejeon, Korea


At home, 2007 summer, Daejeon, Korea


Passion, 2006 spring, MOMA, New York, USA


Internship, 2005 fall, AT&T Reseach, New Jersey, USA


With lab mates, 2005 spring, KAIST, Daejeon, Korea