Search (5 results, page 1 of 1)

  • × language_ss:"d"
  • × theme_ss:"Retrievalstudien"
  • × type_ss:"a"
  1. Jochum, F.; Weissmann, V.: Struktur und Elemente des Information Retrieval Experiments (1985) 0.03 
    0.026148204 = product of:
  0.052296408 = sum of:
    0.052296408 = product of:
      0.104592815 = sum of:
        0.104592815 = weight(_text_:v in 114) [ClassicSimilarity], result of:
          0.104592815 = score(doc=114,freq=2.0), product of:
            0.24291293 = queryWeight, product of:
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.04986484 = queryNorm
            0.43057737 = fieldWeight in 114, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.0625 = fieldNorm(doc=114)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  2. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.02 
    0.02364599 = product of:
  0.04729198 = sum of:
    0.04729198 = product of:
      0.09458396 = sum of:
        0.09458396 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
          0.09458396 = score(doc=262,freq=2.0), product of:
            0.17461817 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04986484 = queryNorm
            0.5416616 = fieldWeight in 262, 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=262)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20.10.2000 12:22:23
  3. Petras, V.; Womser-Hacker, C.: Evaluation im Information Retrieval (2023) 0.02 
    0.019611152 = product of:
  0.039222304 = sum of:
    0.039222304 = product of:
      0.07844461 = sum of:
        0.07844461 = weight(_text_:v in 808) [ClassicSimilarity], result of:
          0.07844461 = score(doc=808,freq=2.0), product of:
            0.24291293 = queryWeight, product of:
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.04986484 = queryNorm
            0.32293302 = fieldWeight in 808, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.046875 = fieldNorm(doc=808)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  4. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.01 
    0.013511995 = product of:
  0.02702399 = sum of:
    0.02702399 = product of:
      0.05404798 = sum of:
        0.05404798 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
          0.05404798 = score(doc=261,freq=2.0), product of:
            0.17461817 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04986484 = 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)
  0.5 = coord(1/2)
    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
  5. Reichert, S.; Mayr, P.: Untersuchung von Relevanzeigenschaften in einem kontrollierten Eyetracking-Experiment (2012) 0.01 
    0.010133996 = product of:
  0.020267991 = sum of:
    0.020267991 = product of:
      0.040535983 = sum of:
        0.040535983 = weight(_text_:22 in 328) [ClassicSimilarity], result of:
          0.040535983 = score(doc=328,freq=2.0), product of:
            0.17461817 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04986484 = queryNorm
            0.23214069 = fieldWeight in 328, 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=328)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 7.2012 19:25:54

Authors

Years

Themes