Document (#23106)

Author
Yannakoudakis, E.J.
Tsionos, C.X.
Kapetis, C.A.
Title
¬A new framework for dynamically evolving database environments
Source
Journal of documentation. 55(1999) no.2, S.144-158
Year
1999
Abstract
Describes research work which investigated dynamically evolving database environments and corresponding schemata, with the aim of allowing storage and manipulation of variable length data, a variable number of fields per record, variable length records, manipulation of authority records and links between records and fields and dynamically defined objects (relations in the traditional sense). Proposes a new framework for the definition of a unified schema that eliminates completely the need for reorganization at both logical anad internal levels, and in which retrieval of data is optimized through self contained storage chunks that also vary dynamically

Similar documents (content)

  1. Matters, M.: Inmagic Plus Version 1.0, release 4.0, Image version and Inmagic library guide (1994) 0.17
    0.1727197 = sum of:
      0.1727197 = product of:
        0.71966547 = sum of:
          0.020235464 = weight(abstract_txt:data in 1081) [ClassicSimilarity], result of:
            0.020235464 = score(doc=1081,freq=1.0), product of:
              0.05555478 = queryWeight, product of:
                1.07423 = boost
                3.3302255 = idf(docFreq=4320, maxDocs=44421)
                0.015529253 = queryNorm
              0.36424342 = fieldWeight in 1081, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3302255 = idf(docFreq=4320, maxDocs=44421)
                0.109375 = fieldNorm(doc=1081)
          0.07447953 = weight(abstract_txt:database in 1081) [ClassicSimilarity], result of:
            0.07447953 = score(doc=1081,freq=3.0), product of:
              0.091825545 = queryWeight, product of:
                1.3810782 = boost
                4.2814875 = idf(docFreq=1668, maxDocs=44421)
                0.015529253 = queryNorm
              0.8110981 = fieldWeight in 1081, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.2814875 = idf(docFreq=1668, maxDocs=44421)
                0.109375 = fieldNorm(doc=1081)
          0.069440745 = weight(abstract_txt:fields in 1081) [ClassicSimilarity], result of:
            0.069440745 = score(doc=1081,freq=1.0), product of:
              0.12639278 = queryWeight, product of:
                1.6203083 = boost
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.015529253 = queryNorm
              0.5494044 = fieldWeight in 1081, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.109375 = fieldNorm(doc=1081)
          0.15342848 = weight(abstract_txt:length in 1081) [ClassicSimilarity], result of:
            0.15342848 = score(doc=1081,freq=1.0), product of:
              0.21441245 = queryWeight, product of:
                2.1103842 = boost
                6.5424123 = idf(docFreq=173, maxDocs=44421)
                0.015529253 = queryNorm
              0.71557635 = fieldWeight in 1081, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5424123 = idf(docFreq=173, maxDocs=44421)
                0.109375 = fieldNorm(doc=1081)
          0.10064882 = weight(abstract_txt:records in 1081) [ClassicSimilarity], result of:
            0.10064882 = score(doc=1081,freq=2.0), product of:
              0.14707501 = queryWeight, product of:
                2.1406794 = boost
                4.42422 = idf(docFreq=1446, maxDocs=44421)
                0.015529253 = queryNorm
              0.68433666 = fieldWeight in 1081, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.42422 = idf(docFreq=1446, maxDocs=44421)
                0.109375 = fieldNorm(doc=1081)
          0.30143243 = weight(abstract_txt:variable in 1081) [ClassicSimilarity], result of:
            0.30143243 = score(doc=1081,freq=1.0), product of:
              0.385008 = queryWeight, product of:
                3.4635148 = boost
                7.1581726 = idf(docFreq=93, maxDocs=44421)
                0.015529253 = queryNorm
              0.7829251 = fieldWeight in 1081, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.1581726 = idf(docFreq=93, maxDocs=44421)
                0.109375 = fieldNorm(doc=1081)
        0.24 = coord(6/25)
    
  2. Haynes, D.: Idealist for Windows (1993) 0.13
    0.13198002 = sum of:
      0.13198002 = product of:
        0.65990007 = sum of:
          0.06383959 = weight(abstract_txt:database in 7049) [ClassicSimilarity], result of:
            0.06383959 = score(doc=7049,freq=3.0), product of:
              0.091825545 = queryWeight, product of:
                1.3810782 = boost
                4.2814875 = idf(docFreq=1668, maxDocs=44421)
                0.015529253 = queryNorm
              0.6952269 = fieldWeight in 7049, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.2814875 = idf(docFreq=1668, maxDocs=44421)
                0.09375 = fieldNorm(doc=7049)
          0.084174894 = weight(abstract_txt:fields in 7049) [ClassicSimilarity], result of:
            0.084174894 = score(doc=7049,freq=2.0), product of:
              0.12639278 = queryWeight, product of:
                1.6203083 = boost
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.015529253 = queryNorm
              0.66597867 = fieldWeight in 7049, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.09375 = fieldNorm(doc=7049)
          0.13151012 = weight(abstract_txt:length in 7049) [ClassicSimilarity], result of:
            0.13151012 = score(doc=7049,freq=1.0), product of:
              0.21441245 = queryWeight, product of:
                2.1103842 = boost
                6.5424123 = idf(docFreq=173, maxDocs=44421)
                0.015529253 = queryNorm
              0.61335117 = fieldWeight in 7049, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5424123 = idf(docFreq=173, maxDocs=44421)
                0.09375 = fieldNorm(doc=7049)
          0.12200479 = weight(abstract_txt:records in 7049) [ClassicSimilarity], result of:
            0.12200479 = score(doc=7049,freq=4.0), product of:
              0.14707501 = queryWeight, product of:
                2.1406794 = boost
                4.42422 = idf(docFreq=1446, maxDocs=44421)
                0.015529253 = queryNorm
              0.82954127 = fieldWeight in 7049, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.42422 = idf(docFreq=1446, maxDocs=44421)
                0.09375 = fieldNorm(doc=7049)
          0.25837067 = weight(abstract_txt:variable in 7049) [ClassicSimilarity], result of:
            0.25837067 = score(doc=7049,freq=1.0), product of:
              0.385008 = queryWeight, product of:
                3.4635148 = boost
                7.1581726 = idf(docFreq=93, maxDocs=44421)
                0.015529253 = queryNorm
              0.6710787 = fieldWeight in 7049, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.1581726 = idf(docFreq=93, maxDocs=44421)
                0.09375 = fieldNorm(doc=7049)
        0.2 = coord(5/25)
    
  3. Del Bigio, G.: ¬The CDS/ISIS software : recent developments and results (1991) 0.12
    0.12404051 = sum of:
      0.12404051 = product of:
        0.51683545 = sum of:
          0.060656562 = weight(abstract_txt:allowing in 5039) [ClassicSimilarity], result of:
            0.060656562 = score(doc=5039,freq=1.0), product of:
              0.101590335 = queryWeight, product of:
                1.0271828 = boost
                6.3687487 = idf(docFreq=206, maxDocs=44421)
                0.015529253 = queryNorm
              0.5970702 = fieldWeight in 5039, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.3687487 = idf(docFreq=206, maxDocs=44421)
                0.09375 = fieldNorm(doc=5039)
          0.017344683 = weight(abstract_txt:data in 5039) [ClassicSimilarity], result of:
            0.017344683 = score(doc=5039,freq=1.0), product of:
              0.05555478 = queryWeight, product of:
                1.07423 = boost
                3.3302255 = idf(docFreq=4320, maxDocs=44421)
                0.015529253 = queryNorm
              0.31220865 = fieldWeight in 5039, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3302255 = idf(docFreq=4320, maxDocs=44421)
                0.09375 = fieldNorm(doc=5039)
          0.05952064 = weight(abstract_txt:fields in 5039) [ClassicSimilarity], result of:
            0.05952064 = score(doc=5039,freq=1.0), product of:
              0.12639278 = queryWeight, product of:
                1.6203083 = boost
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.015529253 = queryNorm
              0.47091803 = fieldWeight in 5039, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.09375 = fieldNorm(doc=5039)
          0.13232778 = weight(abstract_txt:storage in 5039) [ClassicSimilarity], result of:
            0.13232778 = score(doc=5039,freq=2.0), product of:
              0.17088394 = queryWeight, product of:
                1.8840271 = boost
                5.8406816 = idf(docFreq=350, maxDocs=44421)
                0.015529253 = queryNorm
              0.7743722 = fieldWeight in 5039, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.8406816 = idf(docFreq=350, maxDocs=44421)
                0.09375 = fieldNorm(doc=5039)
          0.18598339 = weight(abstract_txt:length in 5039) [ClassicSimilarity], result of:
            0.18598339 = score(doc=5039,freq=2.0), product of:
              0.21441245 = queryWeight, product of:
                2.1103842 = boost
                6.5424123 = idf(docFreq=173, maxDocs=44421)
                0.015529253 = queryNorm
              0.86740947 = fieldWeight in 5039, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.5424123 = idf(docFreq=173, maxDocs=44421)
                0.09375 = fieldNorm(doc=5039)
          0.061002396 = weight(abstract_txt:records in 5039) [ClassicSimilarity], result of:
            0.061002396 = score(doc=5039,freq=1.0), product of:
              0.14707501 = queryWeight, product of:
                2.1406794 = boost
                4.42422 = idf(docFreq=1446, maxDocs=44421)
                0.015529253 = queryNorm
              0.41477063 = fieldWeight in 5039, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.42422 = idf(docFreq=1446, maxDocs=44421)
                0.09375 = fieldNorm(doc=5039)
        0.24 = coord(6/25)
    
  4. Mahmood, K.: ¬The best library software for developing countries : more than 30 plus points of Micro CDS/ISIS (1997) 0.11
    0.10565164 = sum of:
      0.10565164 = product of:
        0.5282582 = sum of:
          0.017344683 = weight(abstract_txt:data in 959) [ClassicSimilarity], result of:
            0.017344683 = score(doc=959,freq=1.0), product of:
              0.05555478 = queryWeight, product of:
                1.07423 = boost
                3.3302255 = idf(docFreq=4320, maxDocs=44421)
                0.015529253 = queryNorm
              0.31220865 = fieldWeight in 959, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3302255 = idf(docFreq=4320, maxDocs=44421)
                0.09375 = fieldNorm(doc=959)
          0.036857806 = weight(abstract_txt:database in 959) [ClassicSimilarity], result of:
            0.036857806 = score(doc=959,freq=1.0), product of:
              0.091825545 = queryWeight, product of:
                1.3810782 = boost
                4.2814875 = idf(docFreq=1668, maxDocs=44421)
                0.015529253 = queryNorm
              0.40138945 = fieldWeight in 959, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2814875 = idf(docFreq=1668, maxDocs=44421)
                0.09375 = fieldNorm(doc=959)
          0.084174894 = weight(abstract_txt:fields in 959) [ClassicSimilarity], result of:
            0.084174894 = score(doc=959,freq=2.0), product of:
              0.12639278 = queryWeight, product of:
                1.6203083 = boost
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.015529253 = queryNorm
              0.66597867 = fieldWeight in 959, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.09375 = fieldNorm(doc=959)
          0.13151012 = weight(abstract_txt:length in 959) [ClassicSimilarity], result of:
            0.13151012 = score(doc=959,freq=1.0), product of:
              0.21441245 = queryWeight, product of:
                2.1103842 = boost
                6.5424123 = idf(docFreq=173, maxDocs=44421)
                0.015529253 = queryNorm
              0.61335117 = fieldWeight in 959, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5424123 = idf(docFreq=173, maxDocs=44421)
                0.09375 = fieldNorm(doc=959)
          0.25837067 = weight(abstract_txt:variable in 959) [ClassicSimilarity], result of:
            0.25837067 = score(doc=959,freq=1.0), product of:
              0.385008 = queryWeight, product of:
                3.4635148 = boost
                7.1581726 = idf(docFreq=93, maxDocs=44421)
                0.015529253 = queryNorm
              0.6710787 = fieldWeight in 959, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.1581726 = idf(docFreq=93, maxDocs=44421)
                0.09375 = fieldNorm(doc=959)
        0.2 = coord(5/25)
    
  5. Stover, M.; Grassian, E.: Toward an automated reference information system : Inmagic and the UCLA ready-reference information files (1989) 0.10
    0.100720786 = sum of:
      0.100720786 = product of:
        0.50360394 = sum of:
          0.017344683 = weight(abstract_txt:data in 5598) [ClassicSimilarity], result of:
            0.017344683 = score(doc=5598,freq=1.0), product of:
              0.05555478 = queryWeight, product of:
                1.07423 = boost
                3.3302255 = idf(docFreq=4320, maxDocs=44421)
                0.015529253 = queryNorm
              0.31220865 = fieldWeight in 5598, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3302255 = idf(docFreq=4320, maxDocs=44421)
                0.09375 = fieldNorm(doc=5598)
          0.036857806 = weight(abstract_txt:database in 5598) [ClassicSimilarity], result of:
            0.036857806 = score(doc=5598,freq=1.0), product of:
              0.091825545 = queryWeight, product of:
                1.3810782 = boost
                4.2814875 = idf(docFreq=1668, maxDocs=44421)
                0.015529253 = queryNorm
              0.40138945 = fieldWeight in 5598, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2814875 = idf(docFreq=1668, maxDocs=44421)
                0.09375 = fieldNorm(doc=5598)
          0.05952064 = weight(abstract_txt:fields in 5598) [ClassicSimilarity], result of:
            0.05952064 = score(doc=5598,freq=1.0), product of:
              0.12639278 = queryWeight, product of:
                1.6203083 = boost
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.015529253 = queryNorm
              0.47091803 = fieldWeight in 5598, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.09375 = fieldNorm(doc=5598)
          0.13151012 = weight(abstract_txt:length in 5598) [ClassicSimilarity], result of:
            0.13151012 = score(doc=5598,freq=1.0), product of:
              0.21441245 = queryWeight, product of:
                2.1103842 = boost
                6.5424123 = idf(docFreq=173, maxDocs=44421)
                0.015529253 = queryNorm
              0.61335117 = fieldWeight in 5598, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5424123 = idf(docFreq=173, maxDocs=44421)
                0.09375 = fieldNorm(doc=5598)
          0.25837067 = weight(abstract_txt:variable in 5598) [ClassicSimilarity], result of:
            0.25837067 = score(doc=5598,freq=1.0), product of:
              0.385008 = queryWeight, product of:
                3.4635148 = boost
                7.1581726 = idf(docFreq=93, maxDocs=44421)
                0.015529253 = queryNorm
              0.6710787 = fieldWeight in 5598, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.1581726 = idf(docFreq=93, maxDocs=44421)
                0.09375 = fieldNorm(doc=5598)
        0.2 = coord(5/25)