Document (#29541)

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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