hillbig@is.s.u-tokyo.ac.jp 2005 12 z z / / z zSuffix Arrays, Burrows Wheeler Transform z zCompressed SA, FM-index z zWavelet Tree, XWT (Tree BWT) zSuccinct (bit array, tree) 1990 2000 2005 z z MEDLINE (1100 500GB) z Blog Watcher (1100 blog ) z TREC2004 Terabyte Track (2500 426GB) z Web Pages in Internet ( PB ) z Genome (> 800G in 2004) z We can obtain accurate information from very large inaccurat