Dr. Xuan Liu (3rd from right) is sixth Ph.D. from spatial database group. She graduated in Summer 2000 and is now with IBM T. J. Watson. Group picture in Army High Performance Computing Research Center (6/2001). Front Row (left to right): Yan Huang, Wei-Hsin Fu, Shashi Shekhar, Wei-Li Wu; Middle row : Xiaobin Ma, Hui Xiong, Chang-Tien Lu; Back row: Ru-Lin (Alan) Liu, Pusheng (Alex) Zhang, Vatsavai Ranga Raju; Not pictured: Caroline Peterson, Svetoslav Stoykov, Judy Djugash.