Asia Web Watch
Asia Online Materials Statistics
Editor:
Dr T.Matthew Ciolek
tmciolek@ciolek.com
Est.: 1 Oct 1997. Last updated: 9 May 1998
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Web Databases Statistics - Table 015
Table 015
A study by Lawrence, Steve and C. Lee Giles. 1998. Searching the World Wide Web.
Science, Vol. 280, 3 April, pp. 98-100 has measured effectiveness with which
various search engines indexed an estimated 320 mln pages comprising the
WWW universe in mid-December 1997:
Table 015
The six most effective WWW search engines (Dec 1997)
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Database overall WWW percent of estimated *
coverage invalid links valid WWW coverage
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HotBot 34% 5.3 32.2%
Altavista 28% 2.5 27.3%
Northern Light 20% 5.0 19.0%
Excite 14% 2.0 13.7%
Infoseek 10% 2.6 9.7%
Lycos 3% 1.6 2.9%
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* computed from Lawrence & Giles (1998) data
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