Search (6 results, page 1 of 1)

  • × theme_ss:"Retrievalstudien"
  • × type_ss:"a"
  • × year_i:[2000 TO 2010}
  1. Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000) 0.01
    0.009911945 = product of:
      0.03964778 = sum of:
        0.03964778 = product of:
          0.07929556 = sum of:
            0.07929556 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
              0.07929556 = score(doc=6438,freq=2.0), product of:
                0.14639316 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041804764 = queryNorm
                0.5416616 = fieldWeight in 6438, 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=6438)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    11. 8.2001 16:22:19
  2. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.01
    0.0056639686 = product of:
      0.022655874 = sum of:
        0.022655874 = product of:
          0.04531175 = sum of:
            0.04531175 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
              0.04531175 = score(doc=261,freq=2.0), product of:
                0.14639316 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041804764 = queryNorm
                0.30952093 = fieldWeight in 261, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=261)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Abstract
    Die deutschen Suchmaschinen, Abacho, Acoon, Fireball und Lycos sowie die Web-Kataloge Web.de und Yahoo! werden einem Qualitätstest nach relativem Recall, Precision und Availability unterzogen. Die Methoden der Retrievaltests werden vorgestellt. Im Durchschnitt werden bei einem Cut-Off-Wert von 25 ein Recall von rund 22%, eine Precision von knapp 19% und eine Verfügbarkeit von 24% erreicht
  3. Leininger, K.: Interindexer consistency in PsychINFO (2000) 0.00
    0.0042479765 = product of:
      0.016991906 = sum of:
        0.016991906 = product of:
          0.03398381 = sum of:
            0.03398381 = weight(_text_:22 in 2552) [ClassicSimilarity], result of:
              0.03398381 = score(doc=2552,freq=2.0), product of:
                0.14639316 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041804764 = queryNorm
                0.23214069 = fieldWeight in 2552, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2552)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    9. 2.1997 18:44:22
  4. King, D.W.: Blazing new trails : in celebration of an audacious career (2000) 0.00
    0.0035399804 = product of:
      0.014159922 = sum of:
        0.014159922 = product of:
          0.028319843 = sum of:
            0.028319843 = weight(_text_:22 in 1184) [ClassicSimilarity], result of:
              0.028319843 = score(doc=1184,freq=2.0), product of:
                0.14639316 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041804764 = queryNorm
                0.19345059 = fieldWeight in 1184, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1184)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    22. 9.1997 19:16:05
  5. Petrelli, D.: On the role of user-centred evaluation in the advancement of interactive information retrieval (2008) 0.00
    0.0035399804 = product of:
      0.014159922 = sum of:
        0.014159922 = product of:
          0.028319843 = sum of:
            0.028319843 = weight(_text_:22 in 2026) [ClassicSimilarity], result of:
              0.028319843 = score(doc=2026,freq=2.0), product of:
                0.14639316 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041804764 = queryNorm
                0.19345059 = fieldWeight in 2026, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2026)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Information processing and management. 44(2008) no.1, S.22-38
  6. Larsen, B.; Ingwersen, P.; Lund, B.: Data fusion according to the principle of polyrepresentation (2009) 0.00
    0.0028319843 = product of:
      0.011327937 = sum of:
        0.011327937 = product of:
          0.022655874 = sum of:
            0.022655874 = weight(_text_:22 in 2752) [ClassicSimilarity], result of:
              0.022655874 = score(doc=2752,freq=2.0), product of:
                0.14639316 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041804764 = queryNorm
                0.15476047 = fieldWeight in 2752, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=2752)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    22. 3.2009 18:48:28