Search (3 results, page 1 of 1)

  • × theme_ss:"Retrievalalgorithmen"
  • × theme_ss:"Retrievalstudien"
  1. Rokaya, M.; Atlam, E.; Fuketa, M.; Dorji, T.C.; Aoe, J.-i.: Ranking of field association terms using Co-word analysis (2008) 0.02
    0.02140484 = product of:
      0.12842904 = sum of:
        0.12842904 = weight(_text_:ranking in 2060) [ClassicSimilarity], result of:
          0.12842904 = score(doc=2060,freq=6.0), product of:
            0.20678882 = queryWeight, product of:
              5.4090285 = idf(docFreq=537, maxDocs=44218)
              0.038230307 = queryNorm
            0.62106377 = fieldWeight in 2060, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              5.4090285 = idf(docFreq=537, maxDocs=44218)
              0.046875 = fieldNorm(doc=2060)
      0.16666667 = coord(1/6)
    
    Abstract
    Information retrieval involves finding some desired information in a store of information or a database. In this paper, Co-word analysis will be used to achieve a ranking of a selected sample of FA terms. Based on this ranking a better arranging of search results can be achieved. Experimental results achieved using 41 MB of data (7660 documents) in the field of sports. The corpus was collected from CNN newspaper, sports field. This corpus was chosen to be distributed over 11 sub-fields of the field sports from the experimental results, the average precision increased by 18.3% after applying the proposed arranging scheme depending on the absolute frequency to count the terms weights, and the average precision increased by 17.2% after applying the proposed arranging scheme depending on a formula based on "TF*IDF" to count the terms weights.
  2. Effektive Information Retrieval Verfahren in Theorie und Praxis : ausgewählte und erweiterte Beiträge des Vierten Hildesheimer Evaluierungs- und Retrievalworkshop (HIER 2005), Hildesheim, 20.7.2005 (2006) 0.00
    0.002810437 = product of:
      0.016862622 = sum of:
        0.016862622 = weight(_text_:suchmaschinen in 5973) [ClassicSimilarity], result of:
          0.016862622 = score(doc=5973,freq=2.0), product of:
            0.17080435 = queryWeight, product of:
              4.4677734 = idf(docFreq=1378, maxDocs=44218)
              0.038230307 = queryNorm
            0.098724775 = fieldWeight in 5973, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.4677734 = idf(docFreq=1378, maxDocs=44218)
              0.015625 = fieldNorm(doc=5973)
      0.16666667 = coord(1/6)
    
    Abstract
    Information Retrieval hat sich zu einer Schlüsseltechnologie in der Wissensgesellschaft entwickelt. Die Anzahl der täglichen Anfragen an Internet-Suchmaschinen bildet nur einen Indikator für die große Bedeutung dieses Themas. Der Sammelbandband informiert über Themen wie Information Retrieval-Grundlagen, Retrieval Systeme, Digitale Bibliotheken, Evaluierung und Multilinguale Systeme, beschreibt Anwendungsszenarien und setzt sich mit neuen Herausforderungen an das Information Retrieval auseinander. Die Beiträge behandeln aktuelle Themen und neue Herausforderungen an das Information Retrieval. Die intensive Beteiligung der Informationswissenschaft der Universität Hildesheim am Cross Language Evaluation Forum (CLEF), einer europäischen Evaluierungsinitiative zur Erforschung mehrsprachiger Retrieval Systeme, berührt mehrere der Beiträge. Ebenso spielen Anwendungsszenarien und die Auseinandersetzung mit aktuellen und praktischen Fragestellungen eine große Rolle.
  3. Kwok, K.L.: ¬A network approach to probabilistic information retrieval (1995) 0.00
    0.0017422324 = product of:
      0.010453394 = sum of:
        0.010453394 = product of:
          0.03136018 = sum of:
            0.03136018 = weight(_text_:29 in 5696) [ClassicSimilarity], result of:
              0.03136018 = score(doc=5696,freq=2.0), product of:
                0.13448226 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.038230307 = queryNorm
                0.23319192 = fieldWeight in 5696, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5696)
          0.33333334 = coord(1/3)
      0.16666667 = coord(1/6)
    
    Date
    29. 1.1996 18:42:14