Keisuke Ishibashi Tatsuya Mori Ryoichi Kawahara Yutaka Hirokawa Atsushi Kobayashi Kimihiro Yamamoto Hitoaki Sakamoto Estimating Top N Hosts in Cardinality Using Small Memory Resources. 29 2006 conf/icde/2006w ICDE Workshops http://doi.ieeecomputersociety.org/10.1109/ICDEW.2006.56 db/conf/icde/icdew2006.html#IshibashiMKHKYS06