Document (#13184)

Author
Koopman, R.
Title
¬Ein OPAC mit Gewichtungsalgorithmen : Der PICA Micro OPC
Source
Zukunft der Sacherschließung im OPAC: Vorträge des 2. Düsseldorfer OPAC-Kolloquiums am 21. Juni 1995. Hrsg.: E. Niggemann u. K. Lepsky
Imprint
Düsseldorf : Universitäts- und Landesbibliothek
Year
1996
Pages
S.95-105
Series
Schriften der Universitäts- und Landesbibliothek Düsseldorf; Bd.25
Theme
Retrievalalgorithmen
OPAC
Object
MicroOPC

Similar documents (author)

  1. Koopman, R.: ¬The Pica Micro OPC (1995) 5.86
    5.8576627 = sum of:
      5.8576627 = weight(author_txt:koopman in 5174) [ClassicSimilarity], result of:
        5.8576627 = fieldWeight in 5174, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.37226 = idf(docFreq=9, maxDocs=43254)
          0.625 = fieldNorm(doc=5174)
    
  2. Costers, L.; Koopman, S.: PICA and developments in library networking in the Netherlands (1995) 4.69
    4.68613 = sum of:
      4.68613 = weight(author_txt:koopman in 4137) [ClassicSimilarity], result of:
        4.68613 = fieldWeight in 4137, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.37226 = idf(docFreq=9, maxDocs=43254)
          0.5 = fieldNorm(doc=4137)
    
  3. Wang, S.; Koopman, R.: Second life for authority records (2015) 4.69
    4.68613 = sum of:
      4.68613 = weight(author_txt:koopman in 3768) [ClassicSimilarity], result of:
        4.68613 = fieldWeight in 3768, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.37226 = idf(docFreq=9, maxDocs=43254)
          0.5 = fieldNorm(doc=3768)
    
  4. Wang, S.; Koopman, R.: Embed first, then predict (2019) 4.69
    4.68613 = sum of:
      4.68613 = weight(author_txt:koopman in 401) [ClassicSimilarity], result of:
        4.68613 = fieldWeight in 401, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.37226 = idf(docFreq=9, maxDocs=43254)
          0.5 = fieldNorm(doc=401)
    
  5. Koopman, B.; Zuccon, G.; Bruza, P.; Sitbon, L.; Lawley, M.: Information retrieval as semantic inference : a graph Inference model applied to medical search (2016) 2.93
    2.9288313 = sum of:
      2.9288313 = weight(author_txt:koopman in 4725) [ClassicSimilarity], result of:
        2.9288313 = fieldWeight in 4725, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.37226 = idf(docFreq=9, maxDocs=43254)
          0.3125 = fieldNorm(doc=4725)
    

Similar documents (content)

  1. Honeit, W.: ¬Der Online-Benutzerkatalog im lokalen Bibliothekssystem der Deutschen Bücherei Leipzig (1995) 0.84
    0.84305215 = sum of:
      0.84305215 = product of:
        1.2645782 = sum of:
          0.2129234 = weight(abstract_txt:opac in 1041) [ClassicSimilarity], result of:
            0.2129234 = score(doc=1041,freq=1.0), product of:
              0.35280454 = queryWeight, product of:
                5.517866 = idf(docFreq=471, maxDocs=43254)
                0.06393858 = queryNorm
              0.6035166 = fieldWeight in 1041, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.517866 = idf(docFreq=471, maxDocs=43254)
                0.109375 = fieldNorm(doc=1041)
          1.0516548 = weight(abstract_txt:pica in 1041) [ClassicSimilarity], result of:
            1.0516548 = score(doc=1041,freq=3.0), product of:
              0.7094584 = queryWeight, product of:
                1.4180658 = boost
                7.8246975 = idf(docFreq=46, maxDocs=43254)
                0.06393858 = queryNorm
              1.4823346 = fieldWeight in 1041, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.8246975 = idf(docFreq=46, maxDocs=43254)
                0.109375 = fieldNorm(doc=1041)
        0.6666667 = coord(2/3)
    
  2. Rogalla von Bieberstein, J.A.: Moderne oder historische Musikinstrumente? : ein Katalogisierungsproblem (1997) 0.82
    0.81645405 = sum of:
      0.81645405 = product of:
        1.224681 = sum of:
          0.24334103 = weight(abstract_txt:opac in 3493) [ClassicSimilarity], result of:
            0.24334103 = score(doc=3493,freq=1.0), product of:
              0.35280454 = queryWeight, product of:
                5.517866 = idf(docFreq=471, maxDocs=43254)
                0.06393858 = queryNorm
              0.68973327 = fieldWeight in 3493, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.517866 = idf(docFreq=471, maxDocs=43254)
                0.125 = fieldNorm(doc=3493)
          0.98134 = weight(abstract_txt:pica in 3493) [ClassicSimilarity], result of:
            0.98134 = score(doc=3493,freq=2.0), product of:
              0.7094584 = queryWeight, product of:
                1.4180658 = boost
                7.8246975 = idf(docFreq=46, maxDocs=43254)
                0.06393858 = queryNorm
              1.3832241 = fieldWeight in 3493, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.8246975 = idf(docFreq=46, maxDocs=43254)
                0.125 = fieldNorm(doc=3493)
        0.6666667 = coord(2/3)
    
  3. Smit, A.: Cartographic material in the Pica Library Network : system description (1992) 0.82
    0.8155827 = sum of:
      0.8155827 = product of:
        1.223374 = sum of:
          0.18250577 = weight(abstract_txt:opac in 481) [ClassicSimilarity], result of:
            0.18250577 = score(doc=481,freq=1.0), product of:
              0.35280454 = queryWeight, product of:
                5.517866 = idf(docFreq=471, maxDocs=43254)
                0.06393858 = queryNorm
              0.51729995 = fieldWeight in 481, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.517866 = idf(docFreq=471, maxDocs=43254)
                0.09375 = fieldNorm(doc=481)
          1.0408683 = weight(abstract_txt:pica in 481) [ClassicSimilarity], result of:
            1.0408683 = score(doc=481,freq=4.0), product of:
              0.7094584 = queryWeight, product of:
                1.4180658 = boost
                7.8246975 = idf(docFreq=46, maxDocs=43254)
                0.06393858 = queryNorm
              1.4671308 = fieldWeight in 481, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                7.8246975 = idf(docFreq=46, maxDocs=43254)
                0.09375 = fieldNorm(doc=481)
        0.6666667 = coord(2/3)
    
  4. Bossers, A.: Cooperative library automation and the Pica experience (1989) 0.68
    0.67965233 = sum of:
      0.67965233 = product of:
        1.0194784 = sum of:
          0.15208815 = weight(abstract_txt:opac in 3907) [ClassicSimilarity], result of:
            0.15208815 = score(doc=3907,freq=1.0), product of:
              0.35280454 = queryWeight, product of:
                5.517866 = idf(docFreq=471, maxDocs=43254)
                0.06393858 = queryNorm
              0.4310833 = fieldWeight in 3907, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.517866 = idf(docFreq=471, maxDocs=43254)
                0.078125 = fieldNorm(doc=3907)
          0.8673903 = weight(abstract_txt:pica in 3907) [ClassicSimilarity], result of:
            0.8673903 = score(doc=3907,freq=4.0), product of:
              0.7094584 = queryWeight, product of:
                1.4180658 = boost
                7.8246975 = idf(docFreq=46, maxDocs=43254)
                0.06393858 = queryNorm
              1.222609 = fieldWeight in 3907, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                7.8246975 = idf(docFreq=46, maxDocs=43254)
                0.078125 = fieldNorm(doc=3907)
        0.6666667 = coord(2/3)
    
  5. Koopman, R.: ¬The Pica Micro OPC (1995) 0.66
    0.6639034 = sum of:
      0.6639034 = product of:
        0.9958551 = sum of:
          0.3041763 = weight(abstract_txt:opac in 5174) [ClassicSimilarity], result of:
            0.3041763 = score(doc=5174,freq=1.0), product of:
              0.35280454 = queryWeight, product of:
                5.517866 = idf(docFreq=471, maxDocs=43254)
                0.06393858 = queryNorm
              0.8621666 = fieldWeight in 5174, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.517866 = idf(docFreq=471, maxDocs=43254)
                0.15625 = fieldNorm(doc=5174)
          0.6916788 = weight(abstract_txt:micro in 5174) [ClassicSimilarity], result of:
            0.6916788 = score(doc=5174,freq=1.0), product of:
              0.6100802 = queryWeight, product of:
                1.3150018 = boost
                7.2560043 = idf(docFreq=82, maxDocs=43254)
                0.06393858 = queryNorm
              1.1337507 = fieldWeight in 5174, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2560043 = idf(docFreq=82, maxDocs=43254)
                0.15625 = fieldNorm(doc=5174)
        0.6666667 = coord(2/3)