Search (520 results, page 26 of 26)

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  • × theme_ss:"Suchmaschinen"
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  1. Craven, T.C.: Variations in use of meta tag descriptions by Web pages in different languages (2004) 0.00 
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  2. Lewandowski, D.: Nachweis deutschsprachiger bibliotheks- und informationswissenschaftlicher Aufsätze in Google Scholar (2007) 0.00 
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  3. Pieper, D.; Wolf, S.: BASE - Eine Suchmaschine für OAI-Quellen und wissenschaftliche Webseiten (2007) 0.00 
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  4. Lackie, R.J.: Google's Print and Scholar initiatives : the value of and impact on libraries and information services (2005) 0.00 
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  5. Bekavac, B.; Herget, J.; Hierl, S.; Öttl, S.: Visualisierungskomponenten bei webbasierten Suchmaschinen : Methoden, Kriterien und ein Marktüberblick (2007) 0.00 
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  6. Bilal, D.: Ranking, relevance judgment, and precision of information retrieval on children's queries : evaluation of Google, Yahoo!, Bing, Yahoo! Kids, and ask Kids (2012) 0.00 
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    Abstract
    This study employed benchmarking and intellectual relevance judgment in evaluating Google, Yahoo!, Bing, Yahoo! Kids, and Ask Kids on 30 queries that children formulated to find information for specific tasks. Retrieved hits on given queries were benchmarked to Google's and Yahoo! Kids' top-five ranked hits retrieved. Relevancy of hits was judged on a graded scale; precision was calculated using the precision-at-ten metric (P@10). Yahoo! and Bing produced a similar percentage in hit overlap with Google (nearly 30%), but differed in the ranking of hits. Ask Kids retrieved 11% in hit overlap with Google versus 3% by Yahoo! Kids. The engines retrieved 26 hits across query clusters that overlapped with Yahoo! Kids' top-five ranked hits. Precision (P) that the engines produced across the queries was P = 0.48 for relevant hits, and P = 0.28 for partially relevant hits. Precision by Ask Kids was P = 0.44 for relevant hits versus P = 0.21 by Yahoo! Kids. Bing produced the highest total precision (TP) of relevant hits (TP = 0.86) across the queries, and Yahoo! Kids yielded the lowest (TP = 0.47). Average precision (AP) of relevant hits was AP = 0.56 by leading engines versus AP = 0.29 by small engines. In contrast, average precision of partially relevant hits was AP = 0.83 by small engines versus AP = 0.33 by leading engines. Average precision of relevant hits across the engines was highest on two-word queries and lowest on one-word queries. Google performed best on natural language queries; Bing did the same (P = 0.69) on two-word queries. The findings have implications for search engine ranking algorithms, relevance theory, search engine design, research design, and information literacy.
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  7. Wiggins, R.; Matthews, J.A.: Plateaus, peaks, and promises : the Infonortics '98 search engines conference (1998) 0.00 
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  8. Poynder, R.: Web research engines? (1996) 0.00 
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  9. Can, F.; Nuray, R.; Sevdik, A.B.: Automatic performance evaluation of Web search engines (2004) 0.00 
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  10. Thelwall, M.; Vaughan, L.: New versions of PageRank employing alternative Web document models (2004) 0.00 
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  11. Höchstötter, N.: Suchverhalten im Web : Erhebung, Analyse und Möglichkeiten (2007) 0.00 
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  12. Aschoff, F.; Rausch von Traubenberg, E.: Usability von Webportalen und Web-Suchmaschinen im Vergleich (2007) 0.00 
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  13. Burckhardt, D.: Historische Rezensionen online : Eine thematische Suchmaschine von Clio-online (2007) 0.00 
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  14. Kwiatkowski, M.; Höhfeld, S.: Thematisches Aufspüren von Web-Dokumenten : eine kritische Betrachtung von Focused Crawling-Strategien (2007) 0.00 
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  15. Weichselgartner, E.; Baier, C.: Sechs Jahre PsychSpider : Aus der Praxis des Betriebs einer Psychologie-Suchmaschine für freie Web-Inhalte (2007) 0.00 
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  16. hbz: ¬Das Suchraum-Konzept (2007) 0.00 
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  17. Couvering, E. van: ¬The economy of navigation : search engines, search optimisation and search results (2007) 0.00 
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  18. Lorigo, L.; Pan, B.; Hembrooke, H.; Joachims, T.; Granka, L.; Gay, G.: ¬The influence of task and gender on search and evaluation behavior using Google (2006) 0.00 
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  19. Bilal, D.; Gwizdka, J.: Children's query types and reformulations in Google search (2018) 0.00 
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  20. Zschunke, P.: Richtig googeln : Ein neues Buch hilft, alle Möglichkeiten der populären Suchmaschine zu nutzen (2003) 0.00 
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