Search (3 results, page 1 of 1)

  • × author_ss:"Thelwall, M."
  • × language_ss:"e"
  • × theme_ss:"Suchmaschinen"
  1. Thelwall, M.: Assessing web search engines : a webometric approach (2011) 0.00
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    Abstract
    Information Retrieval (IR) research typically evaluates search systems in terms of the standard precision, recall and F-measures to weight the relative importance of precision and recall (e.g. van Rijsbergen, 1979). All of these assess the extent to which the system returns good matches for a query. In contrast, webometric measures are designed specifically for web search engines and are designed to monitor changes in results over time and various aspects of the internal logic of the way in which search engine select the results to be returned. This chapter introduces a range of webometric measurements and illustrates them with case studies of Google, Bing and Yahoo! This is a very fertile area for simple and complex new investigations into search engine results.
  2. Thelwall, M.: Directing students to new information types : a new role for Google in literature searches? (2005) 0.00
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    Date
    3. 6.2007 16:37:29
  3. Vaughan, L.; Thelwall, M.: Search engine coverage bias : evidence and possible causes (2004) 0.00
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    Date
    14. 8.2004 10:30:29