Document (#29540)

Author

Thelwall, M.

Title

Web impact factors and search engine coverage

Source

Journal of documentation. 56(2000) no.2, S.185-189

Year

2000

Abstract

Search engines index only a proportion of the web and this proportion is not determined randomly but by following algorithms that take into account the properties that impact factors measure. A survey was conducted in order to test the coverage of search engines and to decide thether their partial coverage is indeed an obstacle to using them to calculate web impact factors. The results indicate that search engine coverage, even of large national domains is extremely uneven and would be likely to lead to misleading calculations

Content

Vgl. unter: http://www.emeraldinsight.com/.

Theme

Suchmaschinen
Informetrie

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