Document (#26255)

Author

Jun, W.

Title

¬A knowledge network constructed by integrating classification, thesaurus and metadata in a digital library

Source

Bulletin of the American Society for Information Science. 29(2003) no.2, S.24-28

Year

2003

Abstract

Knowledge management in digital libraries is a universal problem. Keyword-based searching is applied everywhere no matter whether the resources are indexed databases or full-text Web pages. In keyword matching, the valuable content description and indexing of the metadata, such as the subject descriptors and the classification notations, are merely treated as common keywords to be matched with the user query. Without the support of vocabulary control tools, such as classification systems and thesauri, the intelligent labor of content analysis, description and indexing in metadata production are seriously wasted. New retrieval paradigms are needed to exploit the potential of the metadata resources. Could classification and thesauri, which contain the condensed intelligence of generations of librarians, be used in a digital library to organize the networked information, especially metadata, to facilitate their usability and change the digital library into a knowledge management environment? To examine that question, we designed and implemented a new paradigm that incorporates a classification system, a thesaurus and metadata. The classification and the thesaurus are merged into a concept network, and the metadata are distributed into the nodes of the concept network according to their subjects. The abstract concept node instantiated with the related metadata records becomes a knowledge node. A coherent and consistent knowledge network is thus formed. It is not only a framework for resource organization but also a structure for knowledge navigation, retrieval and learning. We have built an experimental system based on the Chinese Classification and Thesaurus, which is the most comprehensive and authoritative in China, and we have incorporated more than 5000 bibliographic records in the computing domain from the Peking University Library. The result is encouraging. In this article, we review the tools, the architecture and the implementation of our experimental system, which is called Vision.

Theme

Metadaten
Semantisches Umfeld in Indexierung u. Retrieval

Object

Vision

Location

China

Similar documents (content)

1. Lagoze, C.: Keeping Dublin Core simple : Cross-domain discovery or resource description? (2001) 0.26

   0.258711 = sum of:
     0.258711 = product of:
       0.53898126 = sum of:
         0.012008868 = weight(abstract_txt:management in 2216) [ClassicSimilarity], result of:
           0.012008868 = score(doc=2216,freq=1.0), product of:
             0.09063666 = queryWeight, product of:
               4.239827 = idf(docFreq=1739, maxDocs=44421)
               0.021377442 = queryNorm
             0.1324946 = fieldWeight in 2216, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.239827 = idf(docFreq=1739, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.012972333 = weight(abstract_txt:indexing in 2216) [ClassicSimilarity], result of:
           0.012972333 = score(doc=2216,freq=1.0), product of:
             0.095421866 = queryWeight, product of:
               1.0260582 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.021377442 = queryNorm
             0.13594717 = fieldWeight in 2216, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.011693736 = weight(abstract_txt:which in 2216) [ClassicSimilarity], result of:
           0.011693736 = score(doc=2216,freq=4.0), product of:
             0.06421184 = queryWeight, product of:
               1.0308636 = boost
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.021377442 = queryNorm
             0.18211183 = fieldWeight in 2216, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.019296689 = weight(abstract_txt:records in 2216) [ClassicSimilarity], result of:
           0.019296689 = score(doc=2216,freq=2.0), product of:
             0.09869179 = queryWeight, product of:
               1.0434906 = boost
               4.42422 = idf(docFreq=1446, maxDocs=44421)
               0.021377442 = queryNorm
             0.19552475 = fieldWeight in 2216, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.42422 = idf(docFreq=1446, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.013872621 = weight(abstract_txt:tools in 2216) [ClassicSimilarity], result of:
           0.013872621 = score(doc=2216,freq=1.0), product of:
             0.099787205 = queryWeight, product of:
               1.0492657 = boost
               4.448705 = idf(docFreq=1411, maxDocs=44421)
               0.021377442 = queryNorm
             0.13902204 = fieldWeight in 2216, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.448705 = idf(docFreq=1411, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.039914563 = weight(abstract_txt:description in 2216) [ClassicSimilarity], result of:
           0.039914563 = score(doc=2216,freq=5.0), product of:
             0.11805021 = queryWeight, product of:
               1.1412517 = boost
               4.83871 = idf(docFreq=955, maxDocs=44421)
               0.021377442 = queryNorm
             0.33811513 = fieldWeight in 2216, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.83871 = idf(docFreq=955, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.009067989 = weight(abstract_txt:system in 2216) [ClassicSimilarity], result of:
           0.009067989 = score(doc=2216,freq=1.0), product of:
             0.086034685 = queryWeight, product of:
               1.1932473 = boost
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.021377442 = queryNorm
             0.10539922 = fieldWeight in 2216, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.023887087 = weight(abstract_txt:into in 2216) [ClassicSimilarity], result of:
           0.023887087 = score(doc=2216,freq=4.0), product of:
             0.10337648 = queryWeight, product of:
               1.3079904 = boost
               3.697102 = idf(docFreq=2993, maxDocs=44421)
               0.021377442 = queryNorm
             0.23106888 = fieldWeight in 2216, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.697102 = idf(docFreq=2993, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.014451707 = weight(abstract_txt:library in 2216) [ClassicSimilarity], result of:
           0.014451707 = score(doc=2216,freq=2.0), product of:
             0.10254519 = queryWeight, product of:
               1.5042523 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.021377442 = queryNorm
             0.14093013 = fieldWeight in 2216, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.036116317 = weight(abstract_txt:digital in 2216) [ClassicSimilarity], result of:
           0.036116317 = score(doc=2216,freq=2.0), product of:
             0.18884471 = queryWeight, product of:
               2.0413406 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.021377442 = queryNorm
             0.19124876 = fieldWeight in 2216, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.035087246 = weight(abstract_txt:classification in 2216) [ClassicSimilarity], result of:
           0.035087246 = score(doc=2216,freq=1.0), product of:
             0.28124925 = queryWeight, product of:
               3.295549 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.021377442 = queryNorm
             0.12475498 = fieldWeight in 2216, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
         0.3106121 = weight(abstract_txt:metadata in 2216) [ClassicSimilarity], result of:
           0.3106121 = score(doc=2216,freq=18.0), product of:
             0.48015037 = queryWeight, product of:
               4.6032724 = boost
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.021377442 = queryNorm
             0.6469059 = fieldWeight in 2216, product of:
               4.2426405 = tf(freq=18.0), with freq of:
                 18.0 = termFreq=18.0
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.03125 = fieldNorm(doc=2216)
       0.48 = coord(12/25)
   

2. Pole, T.: Contextual classification in the Metadata Object Manager (M.O.M.) (1999) 0.24

   0.23947106 = sum of:
     0.23947106 = product of:
       0.6651974 = sum of:
         0.014617169 = weight(abstract_txt:which in 672) [ClassicSimilarity], result of:
           0.014617169 = score(doc=672,freq=4.0), product of:
             0.06421184 = queryWeight, product of:
               1.0308636 = boost
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.021377442 = queryNorm
             0.2276398 = fieldWeight in 672, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.0390625 = fieldNorm(doc=672)
         0.029989554 = weight(abstract_txt:system in 672) [ClassicSimilarity], result of:
           0.029989554 = score(doc=672,freq=7.0), product of:
             0.086034685 = queryWeight, product of:
               1.1932473 = boost
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.021377442 = queryNorm
             0.34857515 = fieldWeight in 672, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.0390625 = fieldNorm(doc=672)
         0.025858533 = weight(abstract_txt:into in 672) [ClassicSimilarity], result of:
           0.025858533 = score(doc=672,freq=3.0), product of:
             0.10337648 = queryWeight, product of:
               1.3079904 = boost
               3.697102 = idf(docFreq=2993, maxDocs=44421)
               0.021377442 = queryNorm
             0.25013942 = fieldWeight in 672, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.697102 = idf(docFreq=2993, maxDocs=44421)
               0.0390625 = fieldNorm(doc=672)
         0.06132977 = weight(abstract_txt:keyword in 672) [ClassicSimilarity], result of:
           0.06132977 = score(doc=672,freq=2.0), product of:
             0.18385132 = queryWeight, product of:
               1.4242343 = boost
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.021377442 = queryNorm
             0.33358353 = fieldWeight in 672, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.0390625 = fieldNorm(doc=672)
         0.012773625 = weight(abstract_txt:library in 672) [ClassicSimilarity], result of:
           0.012773625 = score(doc=672,freq=1.0), product of:
             0.10254519 = queryWeight, product of:
               1.5042523 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.021377442 = queryNorm
             0.12456582 = fieldWeight in 672, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.0390625 = fieldNorm(doc=672)
         0.04677789 = weight(abstract_txt:concept in 672) [ClassicSimilarity], result of:
           0.04677789 = score(doc=672,freq=3.0), product of:
             0.15347804 = queryWeight, product of:
               1.5937375 = boost
               4.5047812 = idf(docFreq=1334, maxDocs=44421)
               0.021377442 = queryNorm
             0.30478555 = fieldWeight in 672, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.5047812 = idf(docFreq=1334, maxDocs=44421)
               0.0390625 = fieldNorm(doc=672)
         0.045646764 = weight(abstract_txt:knowledge in 672) [ClassicSimilarity], result of:
           0.045646764 = score(doc=672,freq=3.0), product of:
             0.1902403 = queryWeight, product of:
               2.5093424 = boost
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.021377442 = queryNorm
             0.23994267 = fieldWeight in 672, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.0390625 = fieldNorm(doc=672)
         0.18607822 = weight(abstract_txt:classification in 672) [ClassicSimilarity], result of:
           0.18607822 = score(doc=672,freq=18.0), product of:
             0.28124925 = queryWeight, product of:
               3.295549 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.021377442 = queryNorm
             0.6616132 = fieldWeight in 672, product of:
               4.2426405 = tf(freq=18.0), with freq of:
                 18.0 = termFreq=18.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.0390625 = fieldNorm(doc=672)
         0.24212587 = weight(abstract_txt:metadata in 672) [ClassicSimilarity], result of:
           0.24212587 = score(doc=672,freq=7.0), product of:
             0.48015037 = queryWeight, product of:
               4.6032724 = boost
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.021377442 = queryNorm
             0.5042709 = fieldWeight in 672, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.0390625 = fieldNorm(doc=672)
       0.36 = coord(9/25)
   

3. Scharnhorst, A.; Smiraglia, R.P.; Guéret, C.; Salah, A.A.A.: Knowledge maps for libraries and archives : uses and use cases (2015) 0.23

   0.23250578 = sum of:
     0.23250578 = product of:
       0.52842224 = sum of:
         0.02101552 = weight(abstract_txt:management in 3304) [ClassicSimilarity], result of:
           0.02101552 = score(doc=3304,freq=1.0), product of:
             0.09063666 = queryWeight, product of:
               4.239827 = idf(docFreq=1739, maxDocs=44421)
               0.021377442 = queryNorm
             0.23186556 = fieldWeight in 3304, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.239827 = idf(docFreq=1739, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
         0.017722378 = weight(abstract_txt:which in 3304) [ClassicSimilarity], result of:
           0.017722378 = score(doc=3304,freq=3.0), product of:
             0.06421184 = queryWeight, product of:
               1.0308636 = boost
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.021377442 = queryNorm
             0.2759986 = fieldWeight in 3304, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
         0.023878433 = weight(abstract_txt:records in 3304) [ClassicSimilarity], result of:
           0.023878433 = score(doc=3304,freq=1.0), product of:
             0.09869179 = queryWeight, product of:
               1.0434906 = boost
               4.42422 = idf(docFreq=1446, maxDocs=44421)
               0.021377442 = queryNorm
             0.24194953 = fieldWeight in 3304, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.42422 = idf(docFreq=1446, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
         0.024277085 = weight(abstract_txt:tools in 3304) [ClassicSimilarity], result of:
           0.024277085 = score(doc=3304,freq=1.0), product of:
             0.099787205 = queryWeight, product of:
               1.0492657 = boost
               4.448705 = idf(docFreq=1411, maxDocs=44421)
               0.021377442 = queryNorm
             0.24328856 = fieldWeight in 3304, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.448705 = idf(docFreq=1411, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
         0.020901201 = weight(abstract_txt:into in 3304) [ClassicSimilarity], result of:
           0.020901201 = score(doc=3304,freq=1.0), product of:
             0.10337648 = queryWeight, product of:
               1.3079904 = boost
               3.697102 = idf(docFreq=2993, maxDocs=44421)
               0.021377442 = queryNorm
             0.20218527 = fieldWeight in 3304, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.697102 = idf(docFreq=2993, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
         0.03576615 = weight(abstract_txt:library in 3304) [ClassicSimilarity], result of:
           0.03576615 = score(doc=3304,freq=4.0), product of:
             0.10254519 = queryWeight, product of:
               1.5042523 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.021377442 = queryNorm
             0.3487843 = fieldWeight in 3304, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
         0.06320355 = weight(abstract_txt:digital in 3304) [ClassicSimilarity], result of:
           0.06320355 = score(doc=3304,freq=2.0), product of:
             0.18884471 = queryWeight, product of:
               2.0413406 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.021377442 = queryNorm
             0.33468533 = fieldWeight in 3304, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
         0.054521848 = weight(abstract_txt:network in 3304) [ClassicSimilarity], result of:
           0.054521848 = score(doc=3304,freq=1.0), product of:
             0.21560933 = queryWeight, product of:
               2.1812067 = boost
               4.6239696 = idf(docFreq=1184, maxDocs=44421)
               0.021377442 = queryNorm
             0.25287333 = fieldWeight in 3304, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6239696 = idf(docFreq=1184, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
         0.052178595 = weight(abstract_txt:knowledge in 3304) [ClassicSimilarity], result of:
           0.052178595 = score(doc=3304,freq=2.0), product of:
             0.1902403 = queryWeight, product of:
               2.5093424 = boost
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.021377442 = queryNorm
             0.2742773 = fieldWeight in 3304, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
         0.086836495 = weight(abstract_txt:classification in 3304) [ClassicSimilarity], result of:
           0.086836495 = score(doc=3304,freq=2.0), product of:
             0.28124925 = queryWeight, product of:
               3.295549 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.021377442 = queryNorm
             0.3087528 = fieldWeight in 3304, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
         0.12812097 = weight(abstract_txt:metadata in 3304) [ClassicSimilarity], result of:
           0.12812097 = score(doc=3304,freq=1.0), product of:
             0.48015037 = queryWeight, product of:
               4.6032724 = boost
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.021377442 = queryNorm
             0.2668351 = fieldWeight in 3304, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
       0.44 = coord(11/25)
   

4. Wang, J.: Automatic thesaurus development : term extraction from title metadata (2006) 0.23

   0.23136061 = sum of:
     0.23136061 = product of:
       0.72300196 = sum of:
         0.01653744 = weight(abstract_txt:which in 63) [ClassicSimilarity], result of:
           0.01653744 = score(doc=63,freq=2.0), product of:
             0.06421184 = queryWeight, product of:
               1.0308636 = boost
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.021377442 = queryNorm
             0.25754502 = fieldWeight in 63, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.0625 = fieldNorm(doc=63)
         0.027289638 = weight(abstract_txt:records in 63) [ClassicSimilarity], result of:
           0.027289638 = score(doc=63,freq=1.0), product of:
             0.09869179 = queryWeight, product of:
               1.0434906 = boost
               4.42422 = idf(docFreq=1446, maxDocs=44421)
               0.021377442 = queryNorm
             0.27651376 = fieldWeight in 63, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.42422 = idf(docFreq=1446, maxDocs=44421)
               0.0625 = fieldNorm(doc=63)
         0.08768523 = weight(abstract_txt:thesauri in 63) [ClassicSimilarity], result of:
           0.08768523 = score(doc=63,freq=3.0), product of:
             0.14900233 = queryWeight, product of:
               1.282167 = boost
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.021377442 = queryNorm
             0.58848226 = fieldWeight in 63, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.0625 = fieldNorm(doc=63)
         0.033781443 = weight(abstract_txt:into in 63) [ClassicSimilarity], result of:
           0.033781443 = score(doc=63,freq=2.0), product of:
             0.10337648 = queryWeight, product of:
               1.3079904 = boost
               3.697102 = idf(docFreq=2993, maxDocs=44421)
               0.021377442 = queryNorm
             0.32678074 = fieldWeight in 63, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.697102 = idf(docFreq=2993, maxDocs=44421)
               0.0625 = fieldNorm(doc=63)
         0.020437801 = weight(abstract_txt:library in 63) [ClassicSimilarity], result of:
           0.020437801 = score(doc=63,freq=1.0), product of:
             0.10254519 = queryWeight, product of:
               1.5042523 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.021377442 = queryNorm
             0.19930531 = fieldWeight in 63, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.0625 = fieldNorm(doc=63)
         0.17424801 = weight(abstract_txt:thesaurus in 63) [ClassicSimilarity], result of:
           0.17424801 = score(doc=63,freq=4.0), product of:
             0.26959866 = queryWeight, product of:
               2.4390569 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.021377442 = queryNorm
             0.64632374 = fieldWeight in 63, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.0625 = fieldNorm(doc=63)
         0.07017449 = weight(abstract_txt:classification in 63) [ClassicSimilarity], result of:
           0.07017449 = score(doc=63,freq=1.0), product of:
             0.28124925 = queryWeight, product of:
               3.295549 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.021377442 = queryNorm
             0.24950996 = fieldWeight in 63, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.0625 = fieldNorm(doc=63)
         0.29284793 = weight(abstract_txt:metadata in 63) [ClassicSimilarity], result of:
           0.29284793 = score(doc=63,freq=4.0), product of:
             0.48015037 = queryWeight, product of:
               4.6032724 = boost
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.021377442 = queryNorm
             0.60990876 = fieldWeight in 63, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.0625 = fieldNorm(doc=63)
       0.32 = coord(8/25)
   

5. Koutsomitropoulos, D.A.; Solomou, G.D.; Alexopoulos, A.D.; Papatheodorou, T.S.: Semantic metadata interoperability and inference-based querying in digital repositories (2009) 0.23

   0.22682887 = sum of:
     0.22682887 = product of:
       0.8101031 = sum of:
         0.014617169 = weight(abstract_txt:which in 718) [ClassicSimilarity], result of:
           0.014617169 = score(doc=718,freq=1.0), product of:
             0.06421184 = queryWeight, product of:
               1.0308636 = boost
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.021377442 = queryNorm
             0.2276398 = fieldWeight in 718, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.078125 = fieldNorm(doc=718)
         0.034112047 = weight(abstract_txt:records in 718) [ClassicSimilarity], result of:
           0.034112047 = score(doc=718,freq=1.0), product of:
             0.09869179 = queryWeight, product of:
               1.0434906 = boost
               4.42422 = idf(docFreq=1446, maxDocs=44421)
               0.021377442 = queryNorm
             0.3456422 = fieldWeight in 718, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.42422 = idf(docFreq=1446, maxDocs=44421)
               0.078125 = fieldNorm(doc=718)
         0.14658813 = weight(abstract_txt:instantiated in 718) [ClassicSimilarity], result of:
           0.14658813 = score(doc=718,freq=1.0), product of:
             0.20704515 = queryWeight, product of:
               1.068724 = boost
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.021377442 = queryNorm
             0.7080008 = fieldWeight in 718, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.078125 = fieldNorm(doc=718)
         0.042226803 = weight(abstract_txt:into in 718) [ClassicSimilarity], result of:
           0.042226803 = score(doc=718,freq=2.0), product of:
             0.10337648 = queryWeight, product of:
               1.3079904 = boost
               3.697102 = idf(docFreq=2993, maxDocs=44421)
               0.021377442 = queryNorm
             0.40847594 = fieldWeight in 718, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.697102 = idf(docFreq=2993, maxDocs=44421)
               0.078125 = fieldNorm(doc=718)
         0.110583186 = weight(abstract_txt:digital in 718) [ClassicSimilarity], result of:
           0.110583186 = score(doc=718,freq=3.0), product of:
             0.18884471 = queryWeight, product of:
               2.0413406 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.021377442 = queryNorm
             0.58557737 = fieldWeight in 718, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.078125 = fieldNorm(doc=718)
         0.052708346 = weight(abstract_txt:knowledge in 718) [ClassicSimilarity], result of:
           0.052708346 = score(doc=718,freq=1.0), product of:
             0.1902403 = queryWeight, product of:
               2.5093424 = boost
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.021377442 = queryNorm
             0.27706194 = fieldWeight in 718, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.078125 = fieldNorm(doc=718)
         0.4092674 = weight(abstract_txt:metadata in 718) [ClassicSimilarity], result of:
           0.4092674 = score(doc=718,freq=5.0), product of:
             0.48015037 = queryWeight, product of:
               4.6032724 = boost
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.021377442 = queryNorm
             0.85237336 = fieldWeight in 718, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.078125 = fieldNorm(doc=718)
       0.28 = coord(7/25)