Document (#13183)

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) 5.87

   5.874302 = sum of:
     5.874302 = weight(author_txt:koopman in 4173) [ClassicSimilarity], result of:
       5.874302 = fieldWeight in 4173, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.398883 = idf(docFreq=9, maxDocs=44421)
         0.625 = fieldNorm(doc=4173)
   

2. Costers, L.; Koopman, S.: PICA and developments in library networking in the Netherlands (1995) 4.70

   4.6994414 = sum of:
     4.6994414 = weight(author_txt:koopman in 3136) [ClassicSimilarity], result of:
       4.6994414 = fieldWeight in 3136, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.398883 = idf(docFreq=9, maxDocs=44421)
         0.5 = fieldNorm(doc=3136)
   

3. Wang, S.; Koopman, R.: Second life for authority records (2015) 4.70

   4.6994414 = sum of:
     4.6994414 = weight(author_txt:koopman in 3303) [ClassicSimilarity], result of:
       4.6994414 = fieldWeight in 3303, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.398883 = idf(docFreq=9, maxDocs=44421)
         0.5 = fieldNorm(doc=3303)
   

4. Wang, S.; Koopman, R.: Embed first, then predict (2019) 4.70

   4.6994414 = sum of:
     4.6994414 = weight(author_txt:koopman in 400) [ClassicSimilarity], result of:
       4.6994414 = fieldWeight in 400, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.398883 = idf(docFreq=9, maxDocs=44421)
         0.5 = fieldNorm(doc=400)
   

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) 2.94

   2.937151 = sum of:
     2.937151 = weight(author_txt:koopman in 4260) [ClassicSimilarity], result of:
       2.937151 = fieldWeight in 4260, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.398883 = idf(docFreq=9, maxDocs=44421)
         0.3125 = fieldNorm(doc=4260)
   

Similar documents (content)

1. Honeit, W.: ¬Der Online-Benutzerkatalog im lokalen Bibliothekssystem der Deutschen Bücherei Leipzig (1995) 0.85

   0.8509383 = sum of:
     0.8509383 = product of:
       1.2764075 = sum of:
         0.21526591 = weight(abstract_txt:opac in 40) [ClassicSimilarity], result of:
           0.21526591 = score(doc=40,freq=1.0), product of:
             0.35524422 = queryWeight, product of:
               5.5402603 = idf(docFreq=473, maxDocs=44421)
               0.064120494 = queryNorm
             0.605966 = fieldWeight in 40, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5402603 = idf(docFreq=473, maxDocs=44421)
               0.109375 = fieldNorm(doc=40)
         1.0611416 = weight(abstract_txt:pica in 40) [ClassicSimilarity], result of:
           1.0611416 = score(doc=40,freq=3.0), product of:
             0.71343106 = queryWeight, product of:
               1.4171392 = boost
               7.85132 = idf(docFreq=46, maxDocs=44421)
               0.064120494 = queryNorm
             1.487378 = fieldWeight in 40, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.85132 = idf(docFreq=46, maxDocs=44421)
               0.109375 = fieldNorm(doc=40)
       0.6666667 = coord(2/3)
   

2. Rogalla von Bieberstein, J.A.: Moderne oder historische Musikinstrumente? : ein Katalogisierungsproblem (1997) 0.82

   0.82414055 = sum of:
     0.82414055 = product of:
       1.2362108 = sum of:
         0.24601819 = weight(abstract_txt:opac in 2492) [ClassicSimilarity], result of:
           0.24601819 = score(doc=2492,freq=1.0), product of:
             0.35524422 = queryWeight, product of:
               5.5402603 = idf(docFreq=473, maxDocs=44421)
               0.064120494 = queryNorm
             0.69253254 = fieldWeight in 2492, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5402603 = idf(docFreq=473, maxDocs=44421)
               0.125 = fieldNorm(doc=2492)
         0.99019265 = weight(abstract_txt:pica in 2492) [ClassicSimilarity], result of:
           0.99019265 = score(doc=2492,freq=2.0), product of:
             0.71343106 = queryWeight, product of:
               1.4171392 = boost
               7.85132 = idf(docFreq=46, maxDocs=44421)
               0.064120494 = queryNorm
             1.3879304 = fieldWeight in 2492, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.85132 = idf(docFreq=46, maxDocs=44421)
               0.125 = fieldNorm(doc=2492)
       0.6666667 = coord(2/3)
   

3. Smit, A.: Cartographic material in the Pica Library Network : system description (1992) 0.82

   0.8231811 = sum of:
     0.8231811 = product of:
       1.2347716 = sum of:
         0.18451364 = weight(abstract_txt:opac in 95) [ClassicSimilarity], result of:
           0.18451364 = score(doc=95,freq=1.0), product of:
             0.35524422 = queryWeight, product of:
               5.5402603 = idf(docFreq=473, maxDocs=44421)
               0.064120494 = queryNorm
             0.5193994 = fieldWeight in 95, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5402603 = idf(docFreq=473, maxDocs=44421)
               0.09375 = fieldNorm(doc=95)
         1.0502579 = weight(abstract_txt:pica in 95) [ClassicSimilarity], result of:
           1.0502579 = score(doc=95,freq=4.0), product of:
             0.71343106 = queryWeight, product of:
               1.4171392 = boost
               7.85132 = idf(docFreq=46, maxDocs=44421)
               0.064120494 = queryNorm
             1.4721224 = fieldWeight in 95, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.85132 = idf(docFreq=46, maxDocs=44421)
               0.09375 = fieldNorm(doc=95)
       0.6666667 = coord(2/3)
   

4. Bossers, A.: Cooperative library automation and the Pica experience (1989) 0.69

   0.68598425 = sum of:
     0.68598425 = product of:
       1.0289763 = sum of:
         0.15376136 = weight(abstract_txt:opac in 2906) [ClassicSimilarity], result of:
           0.15376136 = score(doc=2906,freq=1.0), product of:
             0.35524422 = queryWeight, product of:
               5.5402603 = idf(docFreq=473, maxDocs=44421)
               0.064120494 = queryNorm
             0.43283284 = fieldWeight in 2906, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5402603 = idf(docFreq=473, maxDocs=44421)
               0.078125 = fieldNorm(doc=2906)
         0.87521493 = weight(abstract_txt:pica in 2906) [ClassicSimilarity], result of:
           0.87521493 = score(doc=2906,freq=4.0), product of:
             0.71343106 = queryWeight, product of:
               1.4171392 = boost
               7.85132 = idf(docFreq=46, maxDocs=44421)
               0.064120494 = queryNorm
             1.2267687 = fieldWeight in 2906, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.85132 = idf(docFreq=46, maxDocs=44421)
               0.078125 = fieldNorm(doc=2906)
       0.6666667 = coord(2/3)
   

5. Koopman, R.: ¬The Pica Micro OPC (1995) 0.66

   0.65953434 = sum of:
     0.65953434 = product of:
       0.98930144 = sum of:
         0.3075227 = weight(abstract_txt:opac in 4173) [ClassicSimilarity], result of:
           0.3075227 = score(doc=4173,freq=1.0), product of:
             0.35524422 = queryWeight, product of:
               5.5402603 = idf(docFreq=473, maxDocs=44421)
               0.064120494 = queryNorm
             0.8656657 = fieldWeight in 4173, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5402603 = idf(docFreq=473, maxDocs=44421)
               0.15625 = fieldNorm(doc=4173)
         0.6817787 = weight(abstract_txt:micro in 4173) [ClassicSimilarity], result of:
           0.6817787 = score(doc=4173,freq=1.0), product of:
             0.6040013 = queryWeight, product of:
               1.3039334 = boost
               7.2241306 = idf(docFreq=87, maxDocs=44421)
               0.064120494 = queryNorm
             1.1287704 = fieldWeight in 4173, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.2241306 = idf(docFreq=87, maxDocs=44421)
               0.15625 = fieldNorm(doc=4173)
       0.6666667 = coord(2/3)