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A multi-layer bloom filter for duplicated URL detection

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3 Author(s)
Cen Zhiwang ; Sch. of Inf. Sci. & Eng., Grad. Univ. of Chinese Acad. of Sci., Beijing, China ; Xu Jungang ; Sun Jian

It is of great significance to improve the speed of data collecting and updating in a web crawler because there are a large number of web pages in Internet. A duplicated URL detection approach based on multi-layer bloom filter algorithm is proposed in this paper, which divides an entire URL into some layers and stores them in multi-layer bloom filter. The experimental result shows that the false positive of multi-layer bloom filter algorithm is significantly lower than that of classical bloom filter algorithm, while the efficiency of the former is almost the same as the later.

Published in:

Advanced Computer Theory and Engineering (ICACTE), 2010 3rd International Conference on  (Volume:1 )

Date of Conference:

20-22 Aug. 2010