Document (#5151)

Author

Bantzer, P.
Toussaint, C.

Title

Information Retrieval - relational?

Source

Nachrichten für Dokumentation. 38(1987) H.6, S.351-360

Year

1987

Abstract

Es wird ein relationales konzeptuelles Datenschema für ein Information Retrieval System (IRS) entworfen. Möglichkeiten für die interne Darstellung der Verweisrelation, welche die Beziehung zwischen Deskriptoren und Dokumenten herstellt, werden an den Beispielen der Datenbanksysteme SUPRA und ORACLE aufgezeigt. Für die Grundtypen der Standard-Retrievalsprache 'Common Command Language (CCL)' werden Transformationen in eine einfache relationale Datenmanipulationssprache angegeben. Die möglichen Alternativen, ein IRS an ein DBMS anzubinden, werden besprochen. Der letzte Teil des Beitrags befaßt sich mit Problemen der Integritätssicherung bei parallel zum Retrievalbetrieb laufendem Produktions- und Änderungsbetrieb

Similar documents (content)

1. Kießling, W.; Köstler, G.: Multimedia-Kurs Datenbanksysteme (1998) 0.15

   0.14549522 = sum of:
     0.14549522 = product of:
       1.2124602 = sum of:
         0.9888092 = weight(title_txt:datenbanksysteme in 4076) [ClassicSimilarity], result of:
           0.9888092 = score(doc=4076,freq=1.0), product of:
             0.22299974 = queryWeight, product of:
               1.2754573 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.019715158 = queryNorm
             4.4341273 = fieldWeight in 4076, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.5 = fieldNorm(doc=4076)
         0.18923005 = weight(abstract_txt:relationale in 4076) [ClassicSimilarity], result of:
           0.18923005 = score(doc=4076,freq=1.0), product of:
             0.22605905 = queryWeight, product of:
               1.2841765 = boost
               8.928879 = idf(docFreq=15, maxDocs=44421)
               0.019715158 = queryNorm
             0.8370824 = fieldWeight in 4076, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.928879 = idf(docFreq=15, maxDocs=44421)
               0.09375 = fieldNorm(doc=4076)
         0.034420855 = weight(abstract_txt:werden in 4076) [ClassicSimilarity], result of:
           0.034420855 = score(doc=4076,freq=1.0), product of:
             0.10466867 = queryWeight, product of:
               1.513501 = boost
               3.507791 = idf(docFreq=3617, maxDocs=44421)
               0.019715158 = queryNorm
             0.3288554 = fieldWeight in 4076, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.507791 = idf(docFreq=3617, maxDocs=44421)
               0.09375 = fieldNorm(doc=4076)
       0.12 = coord(3/25)
   

2. Staud, J.L.: Relationale Datenbanksysteme : eine Einführung (1994) 0.10

   0.10433541 = sum of:
     0.10433541 = product of:
       1.3041927 = sum of:
         0.9888092 = weight(title_txt:datenbanksysteme in 6599) [ClassicSimilarity], result of:
           0.9888092 = score(doc=6599,freq=1.0), product of:
             0.22299974 = queryWeight, product of:
               1.2754573 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.019715158 = queryNorm
             4.4341273 = fieldWeight in 6599, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.5 = fieldNorm(doc=6599)
         0.3153834 = weight(abstract_txt:relationale in 6599) [ClassicSimilarity], result of:
           0.3153834 = score(doc=6599,freq=1.0), product of:
             0.22605905 = queryWeight, product of:
               1.2841765 = boost
               8.928879 = idf(docFreq=15, maxDocs=44421)
               0.019715158 = queryNorm
             1.3951373 = fieldWeight in 6599, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.928879 = idf(docFreq=15, maxDocs=44421)
               0.15625 = fieldNorm(doc=6599)
       0.08 = coord(2/25)
   

3. Schumacher, B.: Datenbanksysteme auf Mikro-Computern (1985) 0.08

   0.08461207 = sum of:
     0.08461207 = product of:
       1.0576509 = sum of:
         0.9888092 = weight(title_txt:datenbanksysteme in 6244) [ClassicSimilarity], result of:
           0.9888092 = score(doc=6244,freq=1.0), product of:
             0.22299974 = queryWeight, product of:
               1.2754573 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.019715158 = queryNorm
             4.4341273 = fieldWeight in 6244, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.5 = fieldNorm(doc=6244)
         0.06884171 = weight(abstract_txt:werden in 6244) [ClassicSimilarity], result of:
           0.06884171 = score(doc=6244,freq=1.0), product of:
             0.10466867 = queryWeight, product of:
               1.513501 = boost
               3.507791 = idf(docFreq=3617, maxDocs=44421)
               0.019715158 = queryNorm
             0.6577108 = fieldWeight in 6244, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.507791 = idf(docFreq=3617, maxDocs=44421)
               0.1875 = fieldNorm(doc=6244)
       0.08 = coord(2/25)
   

4. Brathwaite, K.S.: Relational databases : concepts, design and administration (1991) 0.08

   0.07718139 = sum of:
     0.07718139 = product of:
       0.6431783 = sum of:
         0.029784804 = weight(abstract_txt:retrieval in 3008) [ClassicSimilarity], result of:
           0.029784804 = score(doc=3008,freq=1.0), product of:
             0.068539746 = queryWeight, product of:
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.019715158 = queryNorm
             0.4345625 = fieldWeight in 3008, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.125 = fieldNorm(doc=3008)
         0.34959686 = weight(abstract_txt:dbms in 3008) [ClassicSimilarity], result of:
           0.34959686 = score(doc=3008,freq=2.0), product of:
             0.22299974 = queryWeight, product of:
               1.2754573 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.019715158 = queryNorm
             1.5677007 = fieldWeight in 3008, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.125 = fieldNorm(doc=3008)
         0.26379663 = weight(abstract_txt:oracle in 3008) [ClassicSimilarity], result of:
           0.26379663 = score(doc=3008,freq=1.0), product of:
             0.23287104 = queryWeight, product of:
               1.3033813 = boost
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.019715158 = queryNorm
             1.1328013 = fieldWeight in 3008, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.125 = fieldNorm(doc=3008)
       0.12 = coord(3/25)
   

5. Gabriel, R.; Röhrs, H.-P.: Datenbanksysteme : Konzeptionelle Datenmodellierung und Datenbankstrukturen (1995) 0.07

   0.073986135 = sum of:
     0.073986135 = product of:
       0.92482674 = sum of:
         0.8652081 = weight(title_txt:datenbanksysteme in 2390) [ClassicSimilarity], result of:
           0.8652081 = score(doc=2390,freq=1.0), product of:
             0.22299974 = queryWeight, product of:
               1.2754573 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.019715158 = queryNorm
             3.8798614 = fieldWeight in 2390, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.4375 = fieldNorm(doc=2390)
         0.059618674 = weight(abstract_txt:werden in 2390) [ClassicSimilarity], result of:
           0.059618674 = score(doc=2390,freq=3.0), product of:
             0.10466867 = queryWeight, product of:
               1.513501 = boost
               3.507791 = idf(docFreq=3617, maxDocs=44421)
               0.019715158 = queryNorm
             0.56959426 = fieldWeight in 2390, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.507791 = idf(docFreq=3617, maxDocs=44421)
               0.09375 = fieldNorm(doc=2390)
       0.08 = coord(2/25)