Search (209 results, page 2 of 11)

  • × theme_ss:"Suchmaschinen"
  1. MacLeod, R.: Promoting a subject gateway : a case study from EEVL (Edinburgh Engineering Virtual Library) (2000) 0.02
    0.02179542 = product of:
      0.04359084 = sum of:
        0.04359084 = product of:
          0.08718168 = sum of:
            0.08718168 = weight(_text_:22 in 4872) [ClassicSimilarity], result of:
              0.08718168 = score(doc=4872,freq=4.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.54716086 = fieldWeight in 4872, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=4872)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 6.2002 19:40:22
  2. Vidmar, D.J.: Darwin on the Web : the evolution of search tools (1999) 0.02
    0.021576365 = product of:
      0.04315273 = sum of:
        0.04315273 = product of:
          0.08630546 = sum of:
            0.08630546 = weight(_text_:22 in 3175) [ClassicSimilarity], result of:
              0.08630546 = score(doc=3175,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.5416616 = fieldWeight in 3175, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=3175)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Computers in libraries. 19(1999) no.5, S.22-28
  3. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.02
    0.021576365 = product of:
      0.04315273 = sum of:
        0.04315273 = product of:
          0.08630546 = sum of:
            0.08630546 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
              0.08630546 = score(doc=3445,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.5416616 = fieldWeight in 3445, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=3445)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    25. 8.2005 17:42:22
  4. ap: Suchmaschinen in neuem Gewand : Metaspinner kennt 600 Millionen Seiten (1999) 0.02
    0.021576365 = product of:
      0.04315273 = sum of:
        0.04315273 = product of:
          0.08630546 = sum of:
            0.08630546 = weight(_text_:22 in 4224) [ClassicSimilarity], result of:
              0.08630546 = score(doc=4224,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.5416616 = fieldWeight in 4224, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4224)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    3. 5.1997 8:44:22
  5. Dunning, A.: Do we still need search engines? (1999) 0.02
    0.021576365 = product of:
      0.04315273 = sum of:
        0.04315273 = product of:
          0.08630546 = sum of:
            0.08630546 = weight(_text_:22 in 6021) [ClassicSimilarity], result of:
              0.08630546 = score(doc=6021,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.5416616 = fieldWeight in 6021, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=6021)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Ariadne. 1999, no.22
  6. Bawden, D.: Google and the universe of knowledge (2008) 0.02
    0.021576365 = product of:
      0.04315273 = sum of:
        0.04315273 = product of:
          0.08630546 = sum of:
            0.08630546 = weight(_text_:22 in 844) [ClassicSimilarity], result of:
              0.08630546 = score(doc=844,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.5416616 = fieldWeight in 844, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=844)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    7. 6.2008 16:22:20
  7. Bradley, P.: ¬The great search-engine con-trick (1999) 0.02
    0.01949679 = product of:
      0.03899358 = sum of:
        0.03899358 = product of:
          0.07798716 = sum of:
            0.07798716 = weight(_text_:p in 3853) [ClassicSimilarity], result of:
              0.07798716 = score(doc=3853,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.47670212 = fieldWeight in 3853, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.09375 = fieldNorm(doc=3853)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  8. Gordon, M.; Pathak, P.: Finding information on the World Wide Web : the retrieval effectiveness of search engines. (1999) 0.02
    0.01949679 = product of:
      0.03899358 = sum of:
        0.03899358 = product of:
          0.07798716 = sum of:
            0.07798716 = weight(_text_:p in 3941) [ClassicSimilarity], result of:
              0.07798716 = score(doc=3941,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.47670212 = fieldWeight in 3941, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.09375 = fieldNorm(doc=3941)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  9. Beuth, P.: ¬Die Jagd nach Nutzer-Profilen (2009) 0.02
    0.018995408 = product of:
      0.037990816 = sum of:
        0.037990816 = sum of:
          0.01949679 = weight(_text_:p in 3033) [ClassicSimilarity], result of:
            0.01949679 = score(doc=3033,freq=2.0), product of:
              0.16359726 = queryWeight, product of:
                3.5955126 = idf(docFreq=3298, maxDocs=44218)
                0.045500398 = queryNorm
              0.11917553 = fieldWeight in 3033, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5955126 = idf(docFreq=3298, maxDocs=44218)
                0.0234375 = fieldNorm(doc=3033)
          0.018494027 = weight(_text_:22 in 3033) [ClassicSimilarity], result of:
            0.018494027 = score(doc=3033,freq=2.0), product of:
              0.15933464 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045500398 = queryNorm
              0.116070345 = fieldWeight in 3033, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0234375 = fieldNorm(doc=3033)
      0.5 = coord(1/2)
    
    Date
    17. 7.1996 9:33:22
  10. Auf der Suche nach Suchmaschinen (1996) 0.02
    0.018494027 = product of:
      0.036988053 = sum of:
        0.036988053 = product of:
          0.07397611 = sum of:
            0.07397611 = weight(_text_:22 in 5583) [ClassicSimilarity], result of:
              0.07397611 = score(doc=5583,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.46428138 = fieldWeight in 5583, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=5583)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Cogito. 12(1996) H.5, S.19-22
  11. Birmingham, J.: Internet search engines (1996) 0.02
    0.018494027 = product of:
      0.036988053 = sum of:
        0.036988053 = product of:
          0.07397611 = sum of:
            0.07397611 = weight(_text_:22 in 5664) [ClassicSimilarity], result of:
              0.07397611 = score(doc=5664,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.46428138 = fieldWeight in 5664, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=5664)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    10.11.1996 16:36:22
  12. Bager, J.: Weniger ist mehr : Internet-Suchmaschinen richtig einsetzen (1998) 0.02
    0.018494027 = product of:
      0.036988053 = sum of:
        0.036988053 = product of:
          0.07397611 = sum of:
            0.07397611 = weight(_text_:22 in 1489) [ClassicSimilarity], result of:
              0.07397611 = score(doc=1489,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.46428138 = fieldWeight in 1489, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1489)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    29.12.1998 11:22:00
  13. Lob, S.: Per Mausklick auf die neusten Nachrichten : Internet-Suchmaschinen liefern Presse-Überblicke und stellen persönliche Zeitungen zusammen (1998) 0.02
    0.018494027 = product of:
      0.036988053 = sum of:
        0.036988053 = product of:
          0.07397611 = sum of:
            0.07397611 = weight(_text_:22 in 1622) [ClassicSimilarity], result of:
              0.07397611 = score(doc=1622,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.46428138 = fieldWeight in 1622, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1622)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    29.12.1998 11:22:25
  14. 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
    0.018494027 = product of:
      0.036988053 = sum of:
        0.036988053 = product of:
          0.07397611 = sum of:
            0.07397611 = weight(_text_:22 in 3106) [ClassicSimilarity], result of:
              0.07397611 = score(doc=3106,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.46428138 = fieldWeight in 3106, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=3106)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    3. 5.1997 8:44:22
  15. Hock, R.E.: How to do field searching in Web search engines : a field trip (1998) 0.02
    0.017436337 = product of:
      0.034872673 = sum of:
        0.034872673 = product of:
          0.06974535 = sum of:
            0.06974535 = weight(_text_:22 in 3601) [ClassicSimilarity], result of:
              0.06974535 = score(doc=3601,freq=4.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.4377287 = fieldWeight in 3601, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3601)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Online. 22(1998) no.3, S.18-22
  16. 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
    0.017194552 = product of:
      0.034389105 = sum of:
        0.034389105 = product of:
          0.06877821 = sum of:
            0.06877821 = weight(_text_:p in 393) [ClassicSimilarity], result of:
              0.06877821 = score(doc=393,freq=14.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.42041177 = fieldWeight in 393, product of:
                  3.7416575 = tf(freq=14.0), with freq of:
                    14.0 = termFreq=14.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.03125 = fieldNorm(doc=393)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    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.
  17. Gilster, P.: Suchen und Finden im Internet (1997) 0.02
    0.016247325 = product of:
      0.03249465 = sum of:
        0.03249465 = product of:
          0.0649893 = sum of:
            0.0649893 = weight(_text_:p in 5632) [ClassicSimilarity], result of:
              0.0649893 = score(doc=5632,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.39725178 = fieldWeight in 5632, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.078125 = fieldNorm(doc=5632)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  18. Klein, P.: Spürhunde ohne Nase? (1998) 0.02
    0.016247325 = product of:
      0.03249465 = sum of:
        0.03249465 = product of:
          0.0649893 = sum of:
            0.0649893 = weight(_text_:p in 1258) [ClassicSimilarity], result of:
              0.0649893 = score(doc=1258,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.39725178 = fieldWeight in 1258, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1258)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  19. Bradley, P.: Advanced Internet searcher's handbook (1998) 0.02
    0.016247325 = product of:
      0.03249465 = sum of:
        0.03249465 = product of:
          0.0649893 = sum of:
            0.0649893 = weight(_text_:p in 5454) [ClassicSimilarity], result of:
              0.0649893 = score(doc=5454,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.39725178 = fieldWeight in 5454, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.078125 = fieldNorm(doc=5454)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  20. Hock, R.: ¬The extreme searcher's guide to Web search engines : a handbook for the serious searcher (1999) 0.02
    0.016247325 = product of:
      0.03249465 = sum of:
        0.03249465 = product of:
          0.0649893 = sum of:
            0.0649893 = weight(_text_:p in 526) [ClassicSimilarity], result of:
              0.0649893 = score(doc=526,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.39725178 = fieldWeight in 526, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.078125 = fieldNorm(doc=526)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Footnote
    Rez. in: Electronic library 17(1999) no.5, S.334-335 (P. Barker)

Languages

  • e 107
  • d 98
  • f 3
  • nl 1
  • More… Less…

Types

  • a 181
  • m 15
  • el 14
  • p 2
  • r 2
  • s 2
  • x 2
  • More… Less…