Hi, my name is Guoqing Xu (pronounced as /gu ching tsu/ ) and if you don't want to learn some Chinese Pin Yin, just call me Harry :). I have been studying at OSU as a Ph.D. student since 2005. Prior to coming to the U.S., I spent half a year working at IBM China Software Development Lab right after I received a M.Eng. from East China Normal University, Shanghai. I can find a lot of fun out of writing programs (Java, C++, Perl....), although I don't know if I've met all the criteria of being a programmer :). I enjoy travelling, hiking, running when I am free, but it seems that I can get more enjoyment from thinking about strange things that appear in my mind everyday.