Search (6 results, page 1 of 1)

Günther, M.: Vermitteln Suchmaschinen vollständige Bilder aktueller Themen? : Untersuchung der Gewichtung inhaltlicher Aspekte von Suchmaschinenergebnissen in Deutschland und den USA (2016) 0.00

0.001896717 = product of:
  0.015173736 = sum of:
    0.015173736 = product of:
      0.03793434 = sum of:
        0.019312166 = weight(_text_:28 in 3068) [ClassicSimilarity], result of:
          0.019312166 = score(doc=3068,freq=2.0), product of:
            0.09758845 = queryWeight, product of:
              3.5822632 = idf(docFreq=3342, maxDocs=44218)
              0.02724212 = queryNorm
            0.19789396 = fieldWeight in 3068, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5822632 = idf(docFreq=3342, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3068)
        0.018622177 = weight(_text_:29 in 3068) [ClassicSimilarity], result of:
          0.018622177 = score(doc=3068,freq=2.0), product of:
            0.09582926 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.02724212 = queryNorm
            0.19432661 = fieldWeight in 3068, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3068)
      0.4 = coord(2/5)
  0.125 = coord(1/8)

Date: 28. 7.2016 16:03:34
Source: Young information scientists. 1(2016), S.13-29

Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.00

0.0012918259 = product of:
  0.010334607 = sum of:
    0.010334607 = product of:
      0.051673036 = sum of:
        0.051673036 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
          0.051673036 = score(doc=262,freq=2.0), product of:
            0.095397264 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.02724212 = 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)
      0.2 = coord(1/5)
  0.125 = coord(1/8)

Date: 20.10.2000 12:22:23

Kluck, M.: ¬Eine deutschsprachige Testdatenbank für moderne Erschließungs- und Retrievalsysteme : German Indexing and Retrieval Testdatabase - GIRT (1996) 0.00

0.0011587299 = product of:
  0.009269839 = sum of:
    0.009269839 = product of:
      0.046349194 = sum of:
        0.046349194 = weight(_text_:28 in 5269) [ClassicSimilarity], result of:
          0.046349194 = score(doc=5269,freq=2.0), product of:
            0.09758845 = queryWeight, product of:
              3.5822632 = idf(docFreq=3342, maxDocs=44218)
              0.02724212 = queryNorm
            0.4749455 = fieldWeight in 5269, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5822632 = idf(docFreq=3342, maxDocs=44218)
              0.09375 = fieldNorm(doc=5269)
      0.2 = coord(1/5)
  0.125 = coord(1/8)

Date: 28. 9.1996 20:12:47

Womser-Hacker, C.: Evaluierung im Information Retrieval (2013) 0.00

9.3110884E-4 = product of:
  0.0074488707 = sum of:
    0.0074488707 = product of:
      0.037244353 = sum of:
        0.037244353 = weight(_text_:29 in 728) [ClassicSimilarity], result of:
          0.037244353 = score(doc=728,freq=2.0), product of:
            0.09582926 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.02724212 = queryNorm
            0.38865322 = fieldWeight in 728, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.078125 = fieldNorm(doc=728)
      0.2 = coord(1/5)
  0.125 = coord(1/8)

Date: 5. 4.2013 13:53:29

Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.00

7.3818624E-4 = product of:
  0.00590549 = sum of:
    0.00590549 = product of:
      0.02952745 = sum of:
        0.02952745 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
          0.02952745 = score(doc=261,freq=2.0), product of:
            0.095397264 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.02724212 = 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)
      0.2 = coord(1/5)
  0.125 = coord(1/8)

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

Reichert, S.; Mayr, P.: Untersuchung von Relevanzeigenschaften in einem kontrollierten Eyetracking-Experiment (2012) 0.00

5.5363966E-4 = product of:
  0.0044291173 = sum of:
    0.0044291173 = product of:
      0.022145586 = sum of:
        0.022145586 = weight(_text_:22 in 328) [ClassicSimilarity], result of:
          0.022145586 = score(doc=328,freq=2.0), product of:
            0.095397264 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.02724212 = 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)
      0.2 = coord(1/5)
  0.125 = coord(1/8)

Date: 22. 7.2012 19:25:54

Search (6 results, page 1 of 1)

Authors

Years

Themes