Search (8 results, page 1 of 1)

  • × language_ss:"d"
  • × theme_ss:"Retrievalstudien"
  • × year_i:[2000 TO 2010}
  1. Kluck, M.; Winter, M.: Topic-Entwicklung und Relevanzbewertung bei GIRT : ein Werkstattbericht (2006) 0.01
    0.011599778 = product of:
      0.034799334 = sum of:
        0.034799334 = weight(_text_:m in 5967) [ClassicSimilarity], result of:
          0.034799334 = score(doc=5967,freq=4.0), product of:
            0.11187479 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044957645 = queryNorm
            0.31105608 = fieldWeight in 5967, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0625 = fieldNorm(doc=5967)
      0.33333334 = coord(1/3)
    
  2. Griesbaum, J.; Rittberger, M.; Bekavac, B.: Deutsche Suchmaschinen im Vergleich : AltaVista.de, Fireball.de, Google.de und Lycos.de (2002) 0.01
    0.010252852 = product of:
      0.030758556 = sum of:
        0.030758556 = weight(_text_:m in 1159) [ClassicSimilarity], result of:
          0.030758556 = score(doc=1159,freq=2.0), product of:
            0.11187479 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044957645 = queryNorm
            0.27493733 = fieldWeight in 1159, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.078125 = fieldNorm(doc=1159)
      0.33333334 = coord(1/3)
    
  3. Heinz, M.; Voigt, H.: Aufbau einer Suchmaschine für ein Forschungsinstitut : Aufgabe für die Bibliothek? (2000) 0.01
    0.008202282 = product of:
      0.024606844 = sum of:
        0.024606844 = weight(_text_:m in 5234) [ClassicSimilarity], result of:
          0.024606844 = score(doc=5234,freq=2.0), product of:
            0.11187479 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044957645 = queryNorm
            0.21994986 = fieldWeight in 5234, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0625 = fieldNorm(doc=5234)
      0.33333334 = coord(1/3)
    
  4. Grummann, M.: Sind Verfahren zur maschinellen Indexierung für Literaturbestände Öffentlicher Bibliotheken geeignet? : Retrievaltests von indexierten ekz-Daten mit der Software IDX (2000) 0.01
    0.008202282 = product of:
      0.024606844 = sum of:
        0.024606844 = weight(_text_:m in 1879) [ClassicSimilarity], result of:
          0.024606844 = score(doc=1879,freq=2.0), product of:
            0.11187479 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044957645 = queryNorm
            0.21994986 = fieldWeight in 1879, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0625 = fieldNorm(doc=1879)
      0.33333334 = coord(1/3)
    
  5. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.01
    0.00812152 = product of:
      0.02436456 = sum of:
        0.02436456 = product of:
          0.04872912 = sum of:
            0.04872912 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
              0.04872912 = score(doc=261,freq=2.0), product of:
                0.15743402 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044957645 = 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)
      0.33333334 = coord(1/3)
    
    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
  6. Binder, G.; Stahl, M.; Faulborn, L.: Vergleichsuntersuchung MESSENGER-FULCRUM (2000) 0.01
    0.007176996 = product of:
      0.021530988 = sum of:
        0.021530988 = weight(_text_:m in 4885) [ClassicSimilarity], result of:
          0.021530988 = score(doc=4885,freq=2.0), product of:
            0.11187479 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044957645 = queryNorm
            0.19245613 = fieldWeight in 4885, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4885)
      0.33333334 = coord(1/3)
    
  7. Kluck, M.; Mandl, T.; Womser-Hacker, C.: Cross-Language Evaluation Forum (CLEF) : Europäische Initiative zur Bewertung sprachübergreifender Retrievalverfahren (2002) 0.01
    0.007176996 = product of:
      0.021530988 = sum of:
        0.021530988 = weight(_text_:m in 266) [ClassicSimilarity], result of:
          0.021530988 = score(doc=266,freq=2.0), product of:
            0.11187479 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044957645 = queryNorm
            0.19245613 = fieldWeight in 266, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0546875 = fieldNorm(doc=266)
      0.33333334 = coord(1/3)
    
  8. Lohmann, H.: KASCADE: Dokumentanreicherung und automatische Inhaltserschließung : Projektbericht und Ergebnisse des Retrievaltests (2000) 0.00
    0.003588498 = product of:
      0.010765494 = sum of:
        0.010765494 = weight(_text_:m in 494) [ClassicSimilarity], result of:
          0.010765494 = score(doc=494,freq=2.0), product of:
            0.11187479 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044957645 = queryNorm
            0.09622806 = fieldWeight in 494, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.02734375 = fieldNorm(doc=494)
      0.33333334 = coord(1/3)
    
    Type
    m