Document (#720)

Author

Endres-Niggemeyer, B.
Schmidt, B.

Title

Knowledge based classification systems : basic issues, a toy system and further prospects

Source

International classification. 16(1989), S.146-156

Year

1989

Abstract

This article propagates expert systems for classification by (1) explaining the conceptual affinity (especially) between faceted classification schemes and frame representations, using a simple example and a toy system for demonstration purposes, (2) reviewing some approaches to classificational knowledge processing, both from Artificial Intelligence and Classification Research or Information Science, in order to prepare the ground for the development of more comprehensive systems: expert systems for classification

Similar documents (author)

1. Endres-Niggemeyer, B.: Sprachverarbeitung im Informationsbereich (1989) 3.61

   3.6062267 = sum of:
     3.6062267 = product of:
       5.40934 = sum of:
         2.6136136 = weight(author_txt:niggemeyer in 4859) [ClassicSimilarity], result of:
           2.6136136 = score(doc=4859,freq=1.0), product of:
             0.6272041 = queryWeight, product of:
               1.2222586 = boost
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.061572008 = queryNorm
             4.167086 = fieldWeight in 4859, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.5 = fieldNorm(doc=4859)
         2.7957263 = weight(author_txt:endres in 4859) [ClassicSimilarity], result of:
           2.7957263 = score(doc=4859,freq=1.0), product of:
             0.6560109 = queryWeight, product of:
               1.250012 = boost
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.061572008 = queryNorm
             4.261707 = fieldWeight in 4859, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.5 = fieldNorm(doc=4859)
       0.6666667 = coord(2/3)
   

2. Endres-Niggemeyer, B.: ¬An empirical process model of abstracting (1992) 3.61

   3.6062267 = sum of:
     3.6062267 = product of:
       5.40934 = sum of:
         2.6136136 = weight(author_txt:niggemeyer in 448) [ClassicSimilarity], result of:
           2.6136136 = score(doc=448,freq=1.0), product of:
             0.6272041 = queryWeight, product of:
               1.2222586 = boost
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.061572008 = queryNorm
             4.167086 = fieldWeight in 448, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.5 = fieldNorm(doc=448)
         2.7957263 = weight(author_txt:endres in 448) [ClassicSimilarity], result of:
           2.7957263 = score(doc=448,freq=1.0), product of:
             0.6560109 = queryWeight, product of:
               1.250012 = boost
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.061572008 = queryNorm
             4.261707 = fieldWeight in 448, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.5 = fieldNorm(doc=448)
       0.6666667 = coord(2/3)
   

3. Endres-Niggemeyer, B.: Summarising text for intelligent communication : results of the Dagstuhl seminar (1994) 3.61

   3.6062267 = sum of:
     3.6062267 = product of:
       5.40934 = sum of:
         2.6136136 = weight(author_txt:niggemeyer in 481) [ClassicSimilarity], result of:
           2.6136136 = score(doc=481,freq=1.0), product of:
             0.6272041 = queryWeight, product of:
               1.2222586 = boost
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.061572008 = queryNorm
             4.167086 = fieldWeight in 481, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.5 = fieldNorm(doc=481)
         2.7957263 = weight(author_txt:endres in 481) [ClassicSimilarity], result of:
           2.7957263 = score(doc=481,freq=1.0), product of:
             0.6560109 = queryWeight, product of:
               1.250012 = boost
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.061572008 = queryNorm
             4.261707 = fieldWeight in 481, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.5 = fieldNorm(doc=481)
       0.6666667 = coord(2/3)
   

4. Endres-Niggemeyer, B.: Wissensbasierte Ansätze zur Formalerfassung (1988) 3.61

   3.6062267 = sum of:
     3.6062267 = product of:
       5.40934 = sum of:
         2.6136136 = weight(author_txt:niggemeyer in 592) [ClassicSimilarity], result of:
           2.6136136 = score(doc=592,freq=1.0), product of:
             0.6272041 = queryWeight, product of:
               1.2222586 = boost
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.061572008 = queryNorm
             4.167086 = fieldWeight in 592, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.5 = fieldNorm(doc=592)
         2.7957263 = weight(author_txt:endres in 592) [ClassicSimilarity], result of:
           2.7957263 = score(doc=592,freq=1.0), product of:
             0.6560109 = queryWeight, product of:
               1.250012 = boost
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.061572008 = queryNorm
             4.261707 = fieldWeight in 592, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.5 = fieldNorm(doc=592)
       0.6666667 = coord(2/3)
   

5. Endres-Niggemeyer, B.: Content analysis : a special case of text compression (1989) 3.61

   3.6062267 = sum of:
     3.6062267 = product of:
       5.40934 = sum of:
         2.6136136 = weight(author_txt:niggemeyer in 3617) [ClassicSimilarity], result of:
           2.6136136 = score(doc=3617,freq=1.0), product of:
             0.6272041 = queryWeight, product of:
               1.2222586 = boost
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.061572008 = queryNorm
             4.167086 = fieldWeight in 3617, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.5 = fieldNorm(doc=3617)
         2.7957263 = weight(author_txt:endres in 3617) [ClassicSimilarity], result of:
           2.7957263 = score(doc=3617,freq=1.0), product of:
             0.6560109 = queryWeight, product of:
               1.250012 = boost
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.061572008 = queryNorm
             4.261707 = fieldWeight in 3617, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.5 = fieldNorm(doc=3617)
       0.6666667 = coord(2/3)
   

Similar documents (content)

1. Savic, D.: Designing an expert system for classifying office documents (1994) 0.26

   0.2578943 = sum of:
     0.2578943 = product of:
       0.9210511 = sum of:
         0.06739086 = weight(abstract_txt:basic in 2654) [ClassicSimilarity], result of:
           0.06739086 = score(doc=2654,freq=1.0), product of:
             0.10841431 = queryWeight, product of:
               1.0097215 = boost
               4.972839 = idf(docFreq=835, maxDocs=44421)
               0.02159139 = queryNorm
             0.62160486 = fieldWeight in 2654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.972839 = idf(docFreq=835, maxDocs=44421)
               0.125 = fieldNorm(doc=2654)
         0.0734094 = weight(abstract_txt:example in 2654) [ClassicSimilarity], result of:
           0.0734094 = score(doc=2654,freq=1.0), product of:
             0.11477669 = queryWeight, product of:
               1.0389273 = boost
               5.1166763 = idf(docFreq=723, maxDocs=44421)
               0.02159139 = queryNorm
             0.63958454 = fieldWeight in 2654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1166763 = idf(docFreq=723, maxDocs=44421)
               0.125 = fieldNorm(doc=2654)
         0.10871225 = weight(abstract_txt:intelligence in 2654) [ClassicSimilarity], result of:
           0.10871225 = score(doc=2654,freq=1.0), product of:
             0.14912081 = queryWeight, product of:
               1.1842065 = boost
               5.8321705 = idf(docFreq=353, maxDocs=44421)
               0.02159139 = queryNorm
             0.7290213 = fieldWeight in 2654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8321705 = idf(docFreq=353, maxDocs=44421)
               0.125 = fieldNorm(doc=2654)
         0.12087232 = weight(abstract_txt:artificial in 2654) [ClassicSimilarity], result of:
           0.12087232 = score(doc=2654,freq=1.0), product of:
             0.16004318 = queryWeight, product of:
               1.2268089 = boost
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.02159139 = queryNorm
             0.7552482 = fieldWeight in 2654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.125 = fieldNorm(doc=2654)
         0.2893244 = weight(abstract_txt:expert in 2654) [ClassicSimilarity], result of:
           0.2893244 = score(doc=2654,freq=2.0), product of:
             0.28637996 = queryWeight, product of:
               2.320837 = boost
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.02159139 = queryNorm
             1.0102816 = fieldWeight in 2654, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.125 = fieldNorm(doc=2654)
         0.08700813 = weight(abstract_txt:systems in 2654) [ClassicSimilarity], result of:
           0.08700813 = score(doc=2654,freq=1.0), product of:
             0.20405434 = queryWeight, product of:
               2.7705197 = boost
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.02159139 = queryNorm
             0.42639688 = fieldWeight in 2654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.125 = fieldNorm(doc=2654)
         0.17433374 = weight(abstract_txt:classification in 2654) [ClassicSimilarity], result of:
           0.17433374 = score(doc=2654,freq=1.0), product of:
             0.34935227 = queryWeight, product of:
               4.052986 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.02159139 = queryNorm
             0.49901992 = fieldWeight in 2654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.125 = fieldNorm(doc=2654)
       0.28 = coord(7/25)
   

2. Nagao, M.: Knowledge and inference (1990) 0.23

   0.22866374 = sum of:
     0.22866374 = product of:
       0.7145742 = sum of:
         0.0367047 = weight(abstract_txt:example in 4304) [ClassicSimilarity], result of:
           0.0367047 = score(doc=4304,freq=1.0), product of:
             0.11477669 = queryWeight, product of:
               1.0389273 = boost
               5.1166763 = idf(docFreq=723, maxDocs=44421)
               0.02159139 = queryNorm
             0.31979227 = fieldWeight in 4304, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1166763 = idf(docFreq=723, maxDocs=44421)
               0.0625 = fieldNorm(doc=4304)
         0.09414756 = weight(abstract_txt:intelligence in 4304) [ClassicSimilarity], result of:
           0.09414756 = score(doc=4304,freq=3.0), product of:
             0.14912081 = queryWeight, product of:
               1.1842065 = boost
               5.8321705 = idf(docFreq=353, maxDocs=44421)
               0.02159139 = queryNorm
             0.63135093 = fieldWeight in 4304, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.8321705 = idf(docFreq=353, maxDocs=44421)
               0.0625 = fieldNorm(doc=4304)
         0.104678504 = weight(abstract_txt:artificial in 4304) [ClassicSimilarity], result of:
           0.104678504 = score(doc=4304,freq=3.0), product of:
             0.16004318 = queryWeight, product of:
               1.2268089 = boost
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.02159139 = queryNorm
             0.6540641 = fieldWeight in 4304, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.0625 = fieldNorm(doc=4304)
         0.036417544 = weight(abstract_txt:system in 4304) [ClassicSimilarity], result of:
           0.036417544 = score(doc=4304,freq=3.0), product of:
             0.099743046 = queryWeight, product of:
               1.3696659 = boost
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.02159139 = queryNorm
             0.36511362 = fieldWeight in 4304, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.0625 = fieldNorm(doc=4304)
         0.059872024 = weight(abstract_txt:knowledge in 4304) [ClassicSimilarity], result of:
           0.059872024 = score(doc=4304,freq=6.0), product of:
             0.11027612 = queryWeight, product of:
               1.440171 = boost
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.02159139 = queryNorm
             0.5429283 = fieldWeight in 4304, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.0625 = fieldNorm(doc=4304)
         0.10281941 = weight(abstract_txt:explaining in 4304) [ClassicSimilarity], result of:
           0.10281941 = score(doc=4304,freq=1.0), product of:
             0.22808112 = queryWeight, product of:
               1.464546 = boost
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.02159139 = queryNorm
             0.45080194 = fieldWeight in 4304, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.0625 = fieldNorm(doc=4304)
         0.20458324 = weight(abstract_txt:expert in 4304) [ClassicSimilarity], result of:
           0.20458324 = score(doc=4304,freq=4.0), product of:
             0.28637996 = queryWeight, product of:
               2.320837 = boost
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.02159139 = queryNorm
             0.7143769 = fieldWeight in 4304, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.0625 = fieldNorm(doc=4304)
         0.07535125 = weight(abstract_txt:systems in 4304) [ClassicSimilarity], result of:
           0.07535125 = score(doc=4304,freq=3.0), product of:
             0.20405434 = queryWeight, product of:
               2.7705197 = boost
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.02159139 = queryNorm
             0.36927053 = fieldWeight in 4304, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.0625 = fieldNorm(doc=4304)
       0.32 = coord(8/25)
   

3. Preston, C.M.; Lynch, C.A.: Report of the first international conference on information and knowledge management (1993) 0.22

   0.21601272 = sum of:
     0.21601272 = product of:
       0.771474 = sum of:
         0.057280153 = weight(abstract_txt:processing in 6498) [ClassicSimilarity], result of:
           0.057280153 = score(doc=6498,freq=1.0), product of:
             0.10633674 = queryWeight, product of:
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.02159139 = queryNorm
             0.53866756 = fieldWeight in 6498, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.109375 = fieldNorm(doc=6498)
         0.095123224 = weight(abstract_txt:intelligence in 6498) [ClassicSimilarity], result of:
           0.095123224 = score(doc=6498,freq=1.0), product of:
             0.14912081 = queryWeight, product of:
               1.1842065 = boost
               5.8321705 = idf(docFreq=353, maxDocs=44421)
               0.02159139 = queryNorm
             0.6378937 = fieldWeight in 6498, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8321705 = idf(docFreq=353, maxDocs=44421)
               0.109375 = fieldNorm(doc=6498)
         0.10576329 = weight(abstract_txt:artificial in 6498) [ClassicSimilarity], result of:
           0.10576329 = score(doc=6498,freq=1.0), product of:
             0.16004318 = queryWeight, product of:
               1.2268089 = boost
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.02159139 = queryNorm
             0.6608422 = fieldWeight in 6498, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.109375 = fieldNorm(doc=6498)
         0.07408785 = weight(abstract_txt:knowledge in 6498) [ClassicSimilarity], result of:
           0.07408785 = score(doc=6498,freq=3.0), product of:
             0.11027612 = queryWeight, product of:
               1.440171 = boost
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.02159139 = queryNorm
             0.6718395 = fieldWeight in 6498, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.109375 = fieldNorm(doc=6498)
         0.17901033 = weight(abstract_txt:expert in 6498) [ClassicSimilarity], result of:
           0.17901033 = score(doc=6498,freq=1.0), product of:
             0.28637996 = queryWeight, product of:
               2.320837 = boost
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.02159139 = queryNorm
             0.6250798 = fieldWeight in 6498, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.109375 = fieldNorm(doc=6498)
         0.10766707 = weight(abstract_txt:systems in 6498) [ClassicSimilarity], result of:
           0.10766707 = score(doc=6498,freq=2.0), product of:
             0.20405434 = queryWeight, product of:
               2.7705197 = boost
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.02159139 = queryNorm
             0.5276392 = fieldWeight in 6498, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.109375 = fieldNorm(doc=6498)
         0.15254202 = weight(abstract_txt:classification in 6498) [ClassicSimilarity], result of:
           0.15254202 = score(doc=6498,freq=1.0), product of:
             0.34935227 = queryWeight, product of:
               4.052986 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.02159139 = queryNorm
             0.43664244 = fieldWeight in 6498, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.109375 = fieldNorm(doc=6498)
       0.28 = coord(7/25)
   

4. Binding, C.; Gnoli, C.; Tudhope, D.: Migrating a complex classification scheme to the semantic web : expressing the Integrative Levels Classification using SKOS RDF (2021) 0.22

   0.21598789 = sum of:
     0.21598789 = product of:
       0.59996635 = sum of:
         0.03369543 = weight(abstract_txt:basic in 1601) [ClassicSimilarity], result of:
           0.03369543 = score(doc=1601,freq=1.0), product of:
             0.10841431 = queryWeight, product of:
               1.0097215 = boost
               4.972839 = idf(docFreq=835, maxDocs=44421)
               0.02159139 = queryNorm
             0.31080243 = fieldWeight in 1601, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.972839 = idf(docFreq=835, maxDocs=44421)
               0.0625 = fieldNorm(doc=1601)
         0.04113075 = weight(abstract_txt:simple in 1601) [ClassicSimilarity], result of:
           0.04113075 = score(doc=1601,freq=1.0), product of:
             0.12382748 = queryWeight, product of:
               1.0791128 = boost
               5.314588 = idf(docFreq=593, maxDocs=44421)
               0.02159139 = queryNorm
             0.33216175 = fieldWeight in 1601, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.314588 = idf(docFreq=593, maxDocs=44421)
               0.0625 = fieldNorm(doc=1601)
         0.045311112 = weight(abstract_txt:comprehensive in 1601) [ClassicSimilarity], result of:
           0.045311112 = score(doc=1601,freq=1.0), product of:
             0.13208163 = queryWeight, product of:
               1.1144986 = boost
               5.4888616 = idf(docFreq=498, maxDocs=44421)
               0.02159139 = queryNorm
             0.34305385 = fieldWeight in 1601, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4888616 = idf(docFreq=498, maxDocs=44421)
               0.0625 = fieldNorm(doc=1601)
         0.080431186 = weight(abstract_txt:schemes in 1601) [ClassicSimilarity], result of:
           0.080431186 = score(doc=1601,freq=3.0), product of:
             0.13426057 = queryWeight, product of:
               1.1236539 = boost
               5.5339513 = idf(docFreq=476, maxDocs=44421)
               0.02159139 = queryNorm
             0.5990678 = fieldWeight in 1601, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.5339513 = idf(docFreq=476, maxDocs=44421)
               0.0625 = fieldNorm(doc=1601)
         0.1172582 = weight(abstract_txt:faceted in 1601) [ClassicSimilarity], result of:
           0.1172582 = score(doc=1601,freq=4.0), product of:
             0.15683684 = queryWeight, product of:
               1.2144576 = boost
               5.981156 = idf(docFreq=304, maxDocs=44421)
               0.02159139 = queryNorm
             0.7476445 = fieldWeight in 1601, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.981156 = idf(docFreq=304, maxDocs=44421)
               0.0625 = fieldNorm(doc=1601)
         0.029734798 = weight(abstract_txt:system in 1601) [ClassicSimilarity], result of:
           0.029734798 = score(doc=1601,freq=2.0), product of:
             0.099743046 = queryWeight, product of:
               1.3696659 = boost
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.02159139 = queryNorm
             0.298114 = fieldWeight in 1601, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.0625 = fieldNorm(doc=1601)
         0.03456713 = weight(abstract_txt:knowledge in 1601) [ClassicSimilarity], result of:
           0.03456713 = score(doc=1601,freq=2.0), product of:
             0.11027612 = queryWeight, product of:
               1.440171 = boost
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.02159139 = queryNorm
             0.31345978 = fieldWeight in 1601, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.0625 = fieldNorm(doc=1601)
         0.043504067 = weight(abstract_txt:systems in 1601) [ClassicSimilarity], result of:
           0.043504067 = score(doc=1601,freq=1.0), product of:
             0.20405434 = queryWeight, product of:
               2.7705197 = boost
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.02159139 = queryNorm
             0.21319844 = fieldWeight in 1601, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.411175 = idf(docFreq=3984, maxDocs=44421)
               0.0625 = fieldNorm(doc=1601)
         0.17433374 = weight(abstract_txt:classification in 1601) [ClassicSimilarity], result of:
           0.17433374 = score(doc=1601,freq=4.0), product of:
             0.34935227 = queryWeight, product of:
               4.052986 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.02159139 = queryNorm
             0.49901992 = fieldWeight in 1601, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.0625 = fieldNorm(doc=1601)
       0.36 = coord(9/25)
   

5. Endres-Niggemeyer, B.; Maier, E.; Sigel, A.: How to implement a naturalistic model of abstracting : four core working steps of an expert abstractor (1995) 0.21

   0.20519875 = sum of:
     0.20519875 = product of:
       0.7328527 = sum of:
         0.049097273 = weight(abstract_txt:processing in 2998) [ClassicSimilarity], result of:
           0.049097273 = score(doc=2998,freq=1.0), product of:
             0.10633674 = queryWeight, product of:
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.02159139 = queryNorm
             0.46171504 = fieldWeight in 2998, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.09375 = fieldNorm(doc=2998)
         0.06796667 = weight(abstract_txt:comprehensive in 2998) [ClassicSimilarity], result of:
           0.06796667 = score(doc=2998,freq=1.0), product of:
             0.13208163 = queryWeight, product of:
               1.1144986 = boost
               5.4888616 = idf(docFreq=498, maxDocs=44421)
               0.02159139 = queryNorm
             0.5145808 = fieldWeight in 2998, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4888616 = idf(docFreq=498, maxDocs=44421)
               0.09375 = fieldNorm(doc=2998)
         0.031538516 = weight(abstract_txt:system in 2998) [ClassicSimilarity], result of:
           0.031538516 = score(doc=2998,freq=1.0), product of:
             0.099743046 = queryWeight, product of:
               1.3696659 = boost
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.02159139 = queryNorm
             0.31619766 = fieldWeight in 2998, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.09375 = fieldNorm(doc=2998)
         0.03666398 = weight(abstract_txt:knowledge in 2998) [ClassicSimilarity], result of:
           0.03666398 = score(doc=2998,freq=1.0), product of:
             0.11027612 = queryWeight, product of:
               1.440171 = boost
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.02159139 = queryNorm
             0.33247432 = fieldWeight in 2998, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5463927 = idf(docFreq=3480, maxDocs=44421)
               0.09375 = fieldNorm(doc=2998)
         0.15422912 = weight(abstract_txt:explaining in 2998) [ClassicSimilarity], result of:
           0.15422912 = score(doc=2998,freq=1.0), product of:
             0.22808112 = queryWeight, product of:
               1.464546 = boost
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.02159139 = queryNorm
             0.6762029 = fieldWeight in 2998, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.09375 = fieldNorm(doc=2998)
         0.17636389 = weight(abstract_txt:prepare in 2998) [ClassicSimilarity], result of:
           0.17636389 = score(doc=2998,freq=1.0), product of:
             0.24941248 = queryWeight, product of:
               1.5315014 = boost
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.02159139 = queryNorm
             0.7071173 = fieldWeight in 2998, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.09375 = fieldNorm(doc=2998)
         0.2169933 = weight(abstract_txt:expert in 2998) [ClassicSimilarity], result of:
           0.2169933 = score(doc=2998,freq=2.0), product of:
             0.28637996 = queryWeight, product of:
               2.320837 = boost
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.02159139 = queryNorm
             0.7577112 = fieldWeight in 2998, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.09375 = fieldNorm(doc=2998)
       0.28 = coord(7/25)