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dc.contributor.authorThelwall, Mike
dc.date.accessioned2006-06-20T15:22:38Z
dc.date.available2006-06-20T15:22:38Z
dc.date.issued2000
dc.identifier.citationThelwall, M. (2000), "Web impact factors and search engine coverage", Journal of Documentation, Vol. 56 No. 2, pp. 185-189. https://doi.org/10.1108/00220410010803801
dc.identifier.issn0022-0418
dc.identifier.doi10.1108/00220410010803801
dc.identifier.urihttp://hdl.handle.net/2436/3141
dc.descriptionThis is an accepted manuscript of an article published by MCB UP Ltd in Journal of Documentation on 01/04/2000, available online: https://doi.org/10.1108/00220410010803801 The accepted version of the publication may differ from the final published version.
dc.description.abstractSearch 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 whether 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.
dc.formatapplication/pdf
dc.format.extent20553 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherMCB UP Ltd
dc.relation.urlhttps://www.emerald.com/insight/content/doi/10.1108/00220410010803801/full/html
dc.subjectSearch engines
dc.subjectWorld Wide Web
dc.titleWeb impact factors and search engine coverage
dc.typeJournal article
dc.identifier.journalJournal of Documentation
rioxxterms.versionAM
dc.source.volume56
dc.source.issue2
dc.source.beginpage185
dc.source.endpage189
refterms.dateFCD2020-06-29T12:02:51Z
refterms.versionFCDAM
refterms.dateFOA2018-08-21T11:05:02Z
html.description.abstractSearch 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 whether 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.


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