Search (181 results, page 2 of 10)

Bawden, D.: Google and the universe of knowledge (2008) 0.02

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Date: 7. 6.2008 16:22:20

Bradley, P.: ¬The great search-engine con-trick (1999) 0.02

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Gordon, M.; Pathak, P.: Finding information on the World Wide Web : the retrieval effectiveness of search engines. (1999) 0.02

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Beuth, P.: ¬Die Jagd nach Nutzer-Profilen (2009) 0.02

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Date: 17. 7.1996 9:33:22

Auf der Suche nach Suchmaschinen (1996) 0.02

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Source: Cogito. 12(1996) H.5, S.19-22

Bager, J.: Weniger ist mehr : Internet-Suchmaschinen richtig einsetzen (1998) 0.02

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Date: 29.12.1998 11:22:00

Lob, S.: Per Mausklick auf die neusten Nachrichten : Internet-Suchmaschinen liefern Presse-Überblicke und stellen persönliche Zeitungen zusammen (1998) 0.02

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Date: 29.12.1998 11:22:25

Hannemann, M.: Online ins Schlaraffenland der Wissenschaft : Literatur-Recherche im Internet ist ein teures Unterfangen ohne Erfolgsgarantie - Doch wer systematisch sucht, gelangt zügig ans Ziel (1999) 0.02

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Date: 3. 5.1997 8:44:22

Hock, R.E.: How to do field searching in Web search engines : a field trip (1998) 0.02

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Source: Online. 22(1998) no.3, S.18-22

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) 0.02
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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.

Klein, P.: Spürhunde ohne Nase? (1998) 0.02

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Loeper, D. von: Sherlock Holmes im Netz (1997) 0.02

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Date: 22. 2.1997 19:50:29

Hüskes, R.; Kleber, D.: ¬Den Server im Griff (1999) 0.02

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Date: 22. 8.1999 21:21:10

Price, A.: Five new Danish subject gateways under development (2000) 0.02

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Date: 22. 6.2002 19:41:31

Eggeling, T.; Kroschel, A.: Alles finden im Web (2000) 0.02

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Date: 9. 7.2000 14:06:22

Poulakos, I.: ¬"Die Leute suchen immer dasselbe" (2001) 0.02

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Date: 18. 1.1997 12:15:22

Sauer, D.: Alles schneller finden (2001) 0.02

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Date: 11.11.2001 17:25:22

Breyer, K.: Kommerz statt Information (2002) 0.02

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Date: 9. 5.2002 21:21:22

Jepsen, E.T.; Seiden, P.; Ingwersen, P.; Björneborn, L.; Borlund, P.: Characteristics of scientific Web publications : preliminary data gathering and analysis (2004) 0.01

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Wu, L.-L.; Chuang, Y.-L.; Chen, P.-Y.: Motivation for using search engines : a two-factor model (2008) 0.01

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Footnote: Vgl.: Wu, L.-L., A. Chuang u. P.-Y. Chen: Correction to Wu, L., Chuang, A., & Chen, P. (2008). Motivation for using search engines: A two factor model. Journal of American Society for Information Science and Technology, 59(11), 1829-1840. In: Journal of the American Society for Information Science and Technology. 61(2010) no.1, S.214-216.

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