Applying Approximate Counting for Computing the Frequency Moments of Long Data Streams

Applying Approximate Counting for Computing the Frequency Moments of Long Data Streams
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应用近似计数计算长数据流的频率矩

DOI:
10.1007/s00224-007-9048-z
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发表时间:
2009
影响因子:
0.5
通讯作者:
Martin Sauerhoff
Martin Sauerhoff
中科院分区:
计算机科学4区
文献类型:
--
作者:
André Gronemeier;Martin Sauerhoff

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摘要 本文采取了一个意见,在著名的文件阿隆,马蒂亚斯,和Szegedy(J.计算。系统科学58(1):137-147,1999),并详细示出了如何基于近似计数使用空间O(km 1 - 1/k(k+log m+log log n))来近似计算k≥1的任何Fk。一个重要的积木,这可能是有趣的,在其本身的权利,是一个新的近似变量的油藏采样使用空间O(log log n)的恒定误差参数。
Abstract This paper takes up a remark in the well-known paper of Alon, Matias, and Szegedy (J. Comput. Syst. Sci. 58(1):137–147, 1999) about the computation of the frequency moments of data streams and shows in detail how any Fk with k≥1 can be approximately computed using space O(km1−1/k(k+log m+log log  n)) based on approximate counting. An important building block for this, which may be interesting in its own right, is a new approximate variant of reservoir sampling using space O(log log  n) for constant error parameters.