An optimal cardinality estimation algorithm based on order statistics and its full analysis

Building on the ideas of Flajolet and Martin (1985), Alon et a l. (1987), Bar-Yossef et al. (2002), Giroire (2005), we develop a new algorithm for cardinality estimation, base d on order statistics which, according to Chassaing and Gerin (2006), is optimal among similar algorithms. This alg orithm has a remarkably simple analysis that allows us to take… (More)