Document (#43656)

Author
Lee, S.
Title
Pidgin metadata framework as a mediator for metadata interoperability
Source
Libri. 71(2021) no.4, S.375-387
Year
2021
Abstract
A pidgin metadata framework based on the concept of pidgin metadata is proposed to complement the limitations of existing approaches to metadata interoperability and to achieve more reliable metadata interoperability. The framework consists of three layers, with a hierarchical structure, and reflects the semantic and structural characteristics of various metadata. Layer 1 performs both an external function, serving as an anchor for semantic association between metadata elements, and an internal function, providing semantic categories that can encompass detailed elements. Layer 2 is an arbitrary layer composed of substantial elements from existing metadata and performs a function in which different metadata elements describing the same or similar aspects of information resources are associated with the semantic categories of Layer 1. Layer 3 implements the semantic relationships between Layer 1 and Layer 2 through the Resource Description Framework syntax. With this structure, the pidgin metadata framework can establish the criteria for semantic connection between different elements and fully reflect the complexity and heterogeneity among various metadata. Additionally, it is expected to provide a bibliographic environment that can achieve more reliable metadata interoperability than existing approaches by securing the communication between metadata.
Content
Vgl.: https://doi.org/10.1515/libri-2020-0003.
Theme
Metadaten
Semantische Interoperabilität

Similar documents (content)

  1. Srinivasan, U.; Ngu, A.H.H.; Gedeon, T.: Managing heterogeneous information systems through discovery and retrieval of generic concepts (2000) 0.26
    0.26416364 = sum of:
      0.26416364 = product of:
        0.7337879 = sum of:
          0.0045027295 = weight(abstract_txt:with in 4805) [ClassicSimilarity], result of:
            0.0045027295 = score(doc=4805,freq=1.0), product of:
              0.02882054 = queryWeight, product of:
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.011529446 = queryNorm
              0.15623334 = fieldWeight in 4805, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.0625 = fieldNorm(doc=4805)
          0.044323903 = weight(abstract_txt:heterogeneity in 4805) [ClassicSimilarity], result of:
            0.044323903 = score(doc=4805,freq=1.0), product of:
              0.0917846 = queryWeight, product of:
                1.0303226 = boost
                7.7265954 = idf(docFreq=52, maxDocs=44218)
                0.011529446 = queryNorm
              0.4829122 = fieldWeight in 4805, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7265954 = idf(docFreq=52, maxDocs=44218)
                0.0625 = fieldNorm(doc=4805)
          0.015906146 = weight(abstract_txt:structure in 4805) [ClassicSimilarity], result of:
            0.015906146 = score(doc=4805,freq=1.0), product of:
              0.058397975 = queryWeight, product of:
                1.1622571 = boost
                4.3579993 = idf(docFreq=1538, maxDocs=44218)
                0.011529446 = queryNorm
              0.27237496 = fieldWeight in 4805, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3579993 = idf(docFreq=1538, maxDocs=44218)
                0.0625 = fieldNorm(doc=4805)
          0.041018497 = weight(abstract_txt:existing in 4805) [ClassicSimilarity], result of:
            0.041018497 = score(doc=4805,freq=2.0), product of:
              0.099776454 = queryWeight, product of:
                1.8606427 = boost
                4.6511106 = idf(docFreq=1147, maxDocs=44218)
                0.011529446 = queryNorm
              0.41110396 = fieldWeight in 4805, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6511106 = idf(docFreq=1147, maxDocs=44218)
                0.0625 = fieldNorm(doc=4805)
          0.07131323 = weight(abstract_txt:performs in 4805) [ClassicSimilarity], result of:
            0.07131323 = score(doc=4805,freq=1.0), product of:
              0.15878199 = queryWeight, product of:
                1.9164784 = boost
                7.1860275 = idf(docFreq=90, maxDocs=44218)
                0.011529446 = queryNorm
              0.44912672 = fieldWeight in 4805, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.1860275 = idf(docFreq=90, maxDocs=44218)
                0.0625 = fieldNorm(doc=4805)
          0.06403998 = weight(abstract_txt:framework in 4805) [ClassicSimilarity], result of:
            0.06403998 = score(doc=4805,freq=2.0), product of:
              0.1592057 = queryWeight, product of:
                3.0342588 = boost
                4.550903 = idf(docFreq=1268, maxDocs=44218)
                0.011529446 = queryNorm
              0.40224677 = fieldWeight in 4805, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.550903 = idf(docFreq=1268, maxDocs=44218)
                0.0625 = fieldNorm(doc=4805)
          0.051642384 = weight(abstract_txt:semantic in 4805) [ClassicSimilarity], result of:
            0.051642384 = score(doc=4805,freq=1.0), product of:
              0.18467116 = queryWeight, product of:
                3.5798388 = boost
                4.4743214 = idf(docFreq=1369, maxDocs=44218)
                0.011529446 = queryNorm
              0.2796451 = fieldWeight in 4805, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4743214 = idf(docFreq=1369, maxDocs=44218)
                0.0625 = fieldNorm(doc=4805)
          0.28458446 = weight(abstract_txt:layer in 4805) [ClassicSimilarity], result of:
            0.28458446 = score(doc=4805,freq=1.0), product of:
              0.6065286 = queryWeight, product of:
                7.007498 = boost
                7.5072327 = idf(docFreq=65, maxDocs=44218)
                0.011529446 = queryNorm
              0.46920204 = fieldWeight in 4805, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.5072327 = idf(docFreq=65, maxDocs=44218)
                0.0625 = fieldNorm(doc=4805)
          0.1564566 = weight(abstract_txt:metadata in 4805) [ClassicSimilarity], result of:
            0.1564566 = score(doc=4805,freq=1.0), product of:
              0.5128414 = queryWeight, product of:
                9.112633 = boost
                4.881247 = idf(docFreq=911, maxDocs=44218)
                0.011529446 = queryNorm
              0.30507794 = fieldWeight in 4805, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.881247 = idf(docFreq=911, maxDocs=44218)
                0.0625 = fieldNorm(doc=4805)
        0.36 = coord(9/25)
    
  2. Blanchi, C.; Petrone, J.: Distributed interoperable metadata registry (2001) 0.25
    0.2539835 = sum of:
      0.2539835 = product of:
        1.0582646 = sum of:
          0.006754094 = weight(abstract_txt:with in 1228) [ClassicSimilarity], result of:
            0.006754094 = score(doc=1228,freq=1.0), product of:
              0.02882054 = queryWeight, product of:
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.011529446 = queryNorm
              0.23435001 = fieldWeight in 1228, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.09375 = fieldNorm(doc=1228)
          0.06648585 = weight(abstract_txt:heterogeneity in 1228) [ClassicSimilarity], result of:
            0.06648585 = score(doc=1228,freq=1.0), product of:
              0.0917846 = queryWeight, product of:
                1.0303226 = boost
                7.7265954 = idf(docFreq=52, maxDocs=44218)
                0.011529446 = queryNorm
              0.72436833 = fieldWeight in 1228, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7265954 = idf(docFreq=52, maxDocs=44218)
                0.09375 = fieldNorm(doc=1228)
          0.023951171 = weight(abstract_txt:between in 1228) [ClassicSimilarity], result of:
            0.023951171 = score(doc=1228,freq=1.0), product of:
              0.07376576 = queryWeight, product of:
                1.8473352 = boost
                3.4633842 = idf(docFreq=3764, maxDocs=44218)
                0.011529446 = queryNorm
              0.32469225 = fieldWeight in 1228, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4633842 = idf(docFreq=3764, maxDocs=44218)
                0.09375 = fieldNorm(doc=1228)
          0.067924656 = weight(abstract_txt:framework in 1228) [ClassicSimilarity], result of:
            0.067924656 = score(doc=1228,freq=1.0), product of:
              0.1592057 = queryWeight, product of:
                3.0342588 = boost
                4.550903 = idf(docFreq=1268, maxDocs=44218)
                0.011529446 = queryNorm
              0.42664713 = fieldWeight in 1228, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.550903 = idf(docFreq=1268, maxDocs=44218)
                0.09375 = fieldNorm(doc=1228)
          0.1890941 = weight(abstract_txt:interoperability in 1228) [ClassicSimilarity], result of:
            0.1890941 = score(doc=1228,freq=2.0), product of:
              0.23213767 = queryWeight, product of:
                3.2771108 = boost
                6.1439276 = idf(docFreq=257, maxDocs=44218)
                0.011529446 = queryNorm
              0.8145774 = fieldWeight in 1228, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.1439276 = idf(docFreq=257, maxDocs=44218)
                0.09375 = fieldNorm(doc=1228)
          0.7040547 = weight(abstract_txt:metadata in 1228) [ClassicSimilarity], result of:
            0.7040547 = score(doc=1228,freq=9.0), product of:
              0.5128414 = queryWeight, product of:
                9.112633 = boost
                4.881247 = idf(docFreq=911, maxDocs=44218)
                0.011529446 = queryNorm
              1.3728508 = fieldWeight in 1228, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                4.881247 = idf(docFreq=911, maxDocs=44218)
                0.09375 = fieldNorm(doc=1228)
        0.24 = coord(6/25)
    
  3. Renear, A.H.; Wickett, K.M.; Urban, R.J.; Dubin, D.; Shreeves, S.L.: Collection/item metadata relationships (2008) 0.23
    0.22899413 = sum of:
      0.22899413 = product of:
        0.81783617 = sum of:
          0.020375572 = weight(abstract_txt:various in 2623) [ClassicSimilarity], result of:
            0.020375572 = score(doc=2623,freq=1.0), product of:
              0.059359152 = queryWeight, product of:
                1.1717829 = boost
                4.3937173 = idf(docFreq=1484, maxDocs=44218)
                0.011529446 = queryNorm
              0.34325916 = fieldWeight in 2623, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3937173 = idf(docFreq=1484, maxDocs=44218)
                0.078125 = fieldNorm(doc=2623)
          0.023511816 = weight(abstract_txt:approaches in 2623) [ClassicSimilarity], result of:
            0.023511816 = score(doc=2623,freq=1.0), product of:
              0.06530382 = queryWeight, product of:
                1.2290586 = boost
                4.6084785 = idf(docFreq=1197, maxDocs=44218)
                0.011529446 = queryNorm
              0.3600374 = fieldWeight in 2623, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6084785 = idf(docFreq=1197, maxDocs=44218)
                0.078125 = fieldNorm(doc=2623)
          0.03334527 = weight(abstract_txt:categories in 2623) [ClassicSimilarity], result of:
            0.03334527 = score(doc=2623,freq=1.0), product of:
              0.082433544 = queryWeight, product of:
                1.380878 = boost
                5.17774 = idf(docFreq=677, maxDocs=44218)
                0.011529446 = queryNorm
              0.40451095 = fieldWeight in 2623, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.17774 = idf(docFreq=677, maxDocs=44218)
                0.078125 = fieldNorm(doc=2623)
          0.01995931 = weight(abstract_txt:between in 2623) [ClassicSimilarity], result of:
            0.01995931 = score(doc=2623,freq=1.0), product of:
              0.07376576 = queryWeight, product of:
                1.8473352 = boost
                3.4633842 = idf(docFreq=3764, maxDocs=44218)
                0.011529446 = queryNorm
              0.2705769 = fieldWeight in 2623, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4633842 = idf(docFreq=3764, maxDocs=44218)
                0.078125 = fieldNorm(doc=2623)
          0.08004998 = weight(abstract_txt:framework in 2623) [ClassicSimilarity], result of:
            0.08004998 = score(doc=2623,freq=2.0), product of:
              0.1592057 = queryWeight, product of:
                3.0342588 = boost
                4.550903 = idf(docFreq=1268, maxDocs=44218)
                0.011529446 = queryNorm
              0.50280845 = fieldWeight in 2623, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.550903 = idf(docFreq=1268, maxDocs=44218)
                0.078125 = fieldNorm(doc=2623)
          0.087436594 = weight(abstract_txt:elements in 2623) [ClassicSimilarity], result of:
            0.087436594 = score(doc=2623,freq=1.0), product of:
              0.21274365 = queryWeight, product of:
                3.507532 = boost
                5.260737 = idf(docFreq=623, maxDocs=44218)
                0.011529446 = queryNorm
              0.41099507 = fieldWeight in 2623, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.260737 = idf(docFreq=623, maxDocs=44218)
                0.078125 = fieldNorm(doc=2623)
          0.5531576 = weight(abstract_txt:metadata in 2623) [ClassicSimilarity], result of:
            0.5531576 = score(doc=2623,freq=8.0), product of:
              0.5128414 = queryWeight, product of:
                9.112633 = boost
                4.881247 = idf(docFreq=911, maxDocs=44218)
                0.011529446 = queryNorm
              1.0786134 = fieldWeight in 2623, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                4.881247 = idf(docFreq=911, maxDocs=44218)
                0.078125 = fieldNorm(doc=2623)
        0.28 = coord(7/25)
    
  4. Chan, L.M.; Zeng, M.L.: Metadata interoperability and standardization - a study of methodology, part II : achieving interoperability at the record and repository levels (2006) 0.23
    0.22885494 = sum of:
      0.22885494 = product of:
        0.7151717 = sum of:
          0.006824086 = weight(abstract_txt:with in 1177) [ClassicSimilarity], result of:
            0.006824086 = score(doc=1177,freq=3.0), product of:
              0.02882054 = queryWeight, product of:
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.011529446 = queryNorm
              0.23677856 = fieldWeight in 1177, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1177)
          0.016458271 = weight(abstract_txt:approaches in 1177) [ClassicSimilarity], result of:
            0.016458271 = score(doc=1177,freq=1.0), product of:
              0.06530382 = queryWeight, product of:
                1.2290586 = boost
                4.6084785 = idf(docFreq=1197, maxDocs=44218)
                0.011529446 = queryNorm
              0.25202617 = fieldWeight in 1177, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6084785 = idf(docFreq=1197, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1177)
          0.03625708 = weight(abstract_txt:achieve in 1177) [ClassicSimilarity], result of:
            0.03625708 = score(doc=1177,freq=1.0), product of:
              0.11056331 = queryWeight, product of:
                1.5992222 = boost
                5.9964437 = idf(docFreq=298, maxDocs=44218)
                0.011529446 = queryNorm
              0.3279305 = fieldWeight in 1177, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9964437 = idf(docFreq=298, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1177)
          0.0253789 = weight(abstract_txt:existing in 1177) [ClassicSimilarity], result of:
            0.0253789 = score(doc=1177,freq=1.0), product of:
              0.099776454 = queryWeight, product of:
                1.8606427 = boost
                4.6511106 = idf(docFreq=1147, maxDocs=44218)
                0.011529446 = queryNorm
              0.2543576 = fieldWeight in 1177, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6511106 = idf(docFreq=1147, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1177)
          0.17440735 = weight(abstract_txt:interoperability in 1177) [ClassicSimilarity], result of:
            0.17440735 = score(doc=1177,freq=5.0), product of:
              0.23213767 = queryWeight, product of:
                3.2771108 = boost
                6.1439276 = idf(docFreq=257, maxDocs=44218)
                0.011529446 = queryNorm
              0.75131 = fieldWeight in 1177, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                6.1439276 = idf(docFreq=257, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1177)
          0.13685992 = weight(abstract_txt:elements in 1177) [ClassicSimilarity], result of:
            0.13685992 = score(doc=1177,freq=5.0), product of:
              0.21274365 = queryWeight, product of:
                3.507532 = boost
                5.260737 = idf(docFreq=623, maxDocs=44218)
                0.011529446 = queryNorm
              0.64330906 = fieldWeight in 1177, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.260737 = idf(docFreq=623, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1177)
          0.045187086 = weight(abstract_txt:semantic in 1177) [ClassicSimilarity], result of:
            0.045187086 = score(doc=1177,freq=1.0), product of:
              0.18467116 = queryWeight, product of:
                3.5798388 = boost
                4.4743214 = idf(docFreq=1369, maxDocs=44218)
                0.011529446 = queryNorm
              0.24468945 = fieldWeight in 1177, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4743214 = idf(docFreq=1369, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1177)
          0.27379903 = weight(abstract_txt:metadata in 1177) [ClassicSimilarity], result of:
            0.27379903 = score(doc=1177,freq=4.0), product of:
              0.5128414 = queryWeight, product of:
                9.112633 = boost
                4.881247 = idf(docFreq=911, maxDocs=44218)
                0.011529446 = queryNorm
              0.5338864 = fieldWeight in 1177, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.881247 = idf(docFreq=911, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1177)
        0.32 = coord(8/25)
    
  5. Haslhofer, B.: ¬A Web-based mapping technique for establishing metadata interoperability (2008) 0.23
    0.22780408 = sum of:
      0.22780408 = product of:
        0.7118878 = sum of:
          0.0569452 = weight(abstract_txt:mediator in 3173) [ClassicSimilarity], result of:
            0.0569452 = score(doc=3173,freq=2.0), product of:
              0.11777485 = queryWeight, product of:
                1.1671175 = boost
                8.752448 = idf(docFreq=18, maxDocs=44218)
                0.011529446 = queryNorm
              0.483509 = fieldWeight in 3173, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.752448 = idf(docFreq=18, maxDocs=44218)
                0.0390625 = fieldNorm(doc=3173)
          0.010187786 = weight(abstract_txt:various in 3173) [ClassicSimilarity], result of:
            0.010187786 = score(doc=3173,freq=1.0), product of:
              0.059359152 = queryWeight, product of:
                1.1717829 = boost
                4.3937173 = idf(docFreq=1484, maxDocs=44218)
                0.011529446 = queryNorm
              0.17162958 = fieldWeight in 3173, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3937173 = idf(docFreq=1484, maxDocs=44218)
                0.0390625 = fieldNorm(doc=3173)
          0.025897916 = weight(abstract_txt:achieve in 3173) [ClassicSimilarity], result of:
            0.025897916 = score(doc=3173,freq=1.0), product of:
              0.11056331 = queryWeight, product of:
                1.5992222 = boost
                5.9964437 = idf(docFreq=298, maxDocs=44218)
                0.011529446 = queryNorm
              0.23423609 = fieldWeight in 3173, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9964437 = idf(docFreq=298, maxDocs=44218)
                0.0390625 = fieldNorm(doc=3173)
          0.018127788 = weight(abstract_txt:existing in 3173) [ClassicSimilarity], result of:
            0.018127788 = score(doc=3173,freq=1.0), product of:
              0.099776454 = queryWeight, product of:
                1.8606427 = boost
                4.6511106 = idf(docFreq=1147, maxDocs=44218)
                0.011529446 = queryNorm
              0.18168402 = fieldWeight in 3173, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6511106 = idf(docFreq=1147, maxDocs=44218)
                0.0390625 = fieldNorm(doc=3173)
          0.09649668 = weight(abstract_txt:interoperability in 3173) [ClassicSimilarity], result of:
            0.09649668 = score(doc=3173,freq=3.0), product of:
              0.23213767 = queryWeight, product of:
                3.2771108 = boost
                6.1439276 = idf(docFreq=257, maxDocs=44218)
                0.011529446 = queryNorm
              0.4156873 = fieldWeight in 3173, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.1439276 = idf(docFreq=257, maxDocs=44218)
                0.0390625 = fieldNorm(doc=3173)
          0.043718297 = weight(abstract_txt:elements in 3173) [ClassicSimilarity], result of:
            0.043718297 = score(doc=3173,freq=1.0), product of:
              0.21274365 = queryWeight, product of:
                3.507532 = boost
                5.260737 = idf(docFreq=623, maxDocs=44218)
                0.011529446 = queryNorm
              0.20549753 = fieldWeight in 3173, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.260737 = idf(docFreq=623, maxDocs=44218)
                0.0390625 = fieldNorm(doc=3173)
          0.045645848 = weight(abstract_txt:semantic in 3173) [ClassicSimilarity], result of:
            0.045645848 = score(doc=3173,freq=2.0), product of:
              0.18467116 = queryWeight, product of:
                3.5798388 = boost
                4.4743214 = idf(docFreq=1369, maxDocs=44218)
                0.011529446 = queryNorm
              0.24717367 = fieldWeight in 3173, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4743214 = idf(docFreq=1369, maxDocs=44218)
                0.0390625 = fieldNorm(doc=3173)
          0.41486824 = weight(abstract_txt:metadata in 3173) [ClassicSimilarity], result of:
            0.41486824 = score(doc=3173,freq=18.0), product of:
              0.5128414 = queryWeight, product of:
                9.112633 = boost
                4.881247 = idf(docFreq=911, maxDocs=44218)
                0.011529446 = queryNorm
              0.8089601 = fieldWeight in 3173, product of:
                4.2426405 = tf(freq=18.0), with freq of:
                  18.0 = termFreq=18.0
                4.881247 = idf(docFreq=911, maxDocs=44218)
                0.0390625 = fieldNorm(doc=3173)
        0.32 = coord(8/25)