Document (#14144)

Author

Gomez, I.

Title

Coping with the problem of subject classification diversity

Source

Scientometrics. 35(1996) no.2, S.223-235

Year

1996

Abstract

The delimination of a research field in bibliometric studies presents the problem of the diversity of subject classifications used in the sources of input and output data. Classification of documents according the thematic codes or keywords is the most accurate method, mainly used is specialized bibliographic or patent databases. Classification of journals in disciplines presents lower specifity, and some shortcomings as the change over time of both journals and disciplines and the increasing interdisciplinarity of research. Standardization of subject classifications emerges as an important point in bibliometric studies in order to allow international comparisons, although flexibility is needed to meet the needs of local studies

Theme

Informetrie
Automatisches Indexieren

Similar documents (author)

1. Gomez, J.: ¬A cataloger's workstation : using a NeXT computer and Digital Librarian software to access the Anglo-American Cataloguing Rules (1993) 5.63

   5.633517 = sum of:
     5.633517 = weight(author_txt:gomez in 3708) [ClassicSimilarity], result of:
       5.633517 = fieldWeight in 3708, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.013627 = idf(docFreq=13, maxDocs=42306)
         0.625 = fieldNorm(doc=3708)
   

2. Gomez, F.: Combining factual and heuristic knowledge in knowledge acquisition (1992) 5.63

   5.633517 = sum of:
     5.633517 = weight(author_txt:gomez in 3758) [ClassicSimilarity], result of:
       5.633517 = fieldWeight in 3758, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.013627 = idf(docFreq=13, maxDocs=42306)
         0.625 = fieldNorm(doc=3758)
   

3. Gomez, F.: Learning word syntactic subcategorizations interactively (1995) 5.63

   5.633517 = sum of:
     5.633517 = weight(author_txt:gomez in 3199) [ClassicSimilarity], result of:
       5.633517 = fieldWeight in 3199, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.013627 = idf(docFreq=13, maxDocs=42306)
         0.625 = fieldNorm(doc=3199)
   

4. Gomez, F.: ¬A representation of complex events and processes for the acquisition of knowledge from texts (1998) 5.63

   5.633517 = sum of:
     5.633517 = weight(author_txt:gomez in 4246) [ClassicSimilarity], result of:
       5.633517 = fieldWeight in 4246, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.013627 = idf(docFreq=13, maxDocs=42306)
         0.625 = fieldNorm(doc=4246)
   

5. Hull, R.D.; Gomez, F.: Automatic acquisition of biographic knowledge from encyclopedic texts (2002) 4.51

   4.5068135 = sum of:
     4.5068135 = weight(author_txt:gomez in 4156) [ClassicSimilarity], result of:
       4.5068135 = fieldWeight in 4156, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.013627 = idf(docFreq=13, maxDocs=42306)
         0.5 = fieldNorm(doc=4156)
   

Similar documents (content)

1. Morillo, F.; Bordorns, M.; Gómez, I.: Interdisciplinarity in science : a tentative typology of disciplines and research areas (2003) 0.32

   0.31872082 = sum of:
     0.31872082 = product of:
       0.88533556 = sum of:
         0.026776154 = weight(abstract_txt:research in 3119) [ClassicSimilarity], result of:
           0.026776154 = score(doc=3119,freq=3.0), product of:
             0.07662456 = queryWeight, product of:
               1.0351965 = boost
               3.228045 = idf(docFreq=4557, maxDocs=42306)
               0.02293008 = queryNorm
             0.34944612 = fieldWeight in 3119, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.228045 = idf(docFreq=4557, maxDocs=42306)
               0.0625 = fieldNorm(doc=3119)
         0.017764654 = weight(abstract_txt:used in 3119) [ClassicSimilarity], result of:
           0.017764654 = score(doc=3119,freq=1.0), product of:
             0.08406478 = queryWeight, product of:
               1.0842911 = boost
               3.381136 = idf(docFreq=3910, maxDocs=42306)
               0.02293008 = queryNorm
             0.211321 = fieldWeight in 3119, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.381136 = idf(docFreq=3910, maxDocs=42306)
               0.0625 = fieldNorm(doc=3119)
         0.2884044 = weight(abstract_txt:interdisciplinarity in 3119) [ClassicSimilarity], result of:
           0.2884044 = score(doc=3119,freq=8.0), product of:
             0.21389675 = queryWeight, product of:
               1.2229985 = boost
               7.6273327 = idf(docFreq=55, maxDocs=42306)
               0.02293008 = queryNorm
             1.3483347 = fieldWeight in 3119, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               7.6273327 = idf(docFreq=55, maxDocs=42306)
               0.0625 = fieldNorm(doc=3119)
         0.063777365 = weight(abstract_txt:journals in 3119) [ClassicSimilarity], result of:
           0.063777365 = score(doc=3119,freq=1.0), product of:
             0.19710031 = queryWeight, product of:
               1.6602844 = boost
               5.1772513 = idf(docFreq=648, maxDocs=42306)
               0.02293008 = queryNorm
             0.3235782 = fieldWeight in 3119, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1772513 = idf(docFreq=648, maxDocs=42306)
               0.0625 = fieldNorm(doc=3119)
         0.12901461 = weight(abstract_txt:disciplines in 3119) [ClassicSimilarity], result of:
           0.12901461 = score(doc=3119,freq=3.0), product of:
             0.21858907 = queryWeight, product of:
               1.7484493 = boost
               5.452175 = idf(docFreq=492, maxDocs=42306)
               0.02293008 = queryNorm
             0.59021527 = fieldWeight in 3119, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.452175 = idf(docFreq=492, maxDocs=42306)
               0.0625 = fieldNorm(doc=3119)
         0.04119033 = weight(abstract_txt:subject in 3119) [ClassicSimilarity], result of:
           0.04119033 = score(doc=3119,freq=1.0), product of:
             0.16857903 = queryWeight, product of:
               1.8805559 = boost
               3.9094145 = idf(docFreq=2305, maxDocs=42306)
               0.02293008 = queryNorm
             0.24433841 = fieldWeight in 3119, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9094145 = idf(docFreq=2305, maxDocs=42306)
               0.0625 = fieldNorm(doc=3119)
         0.10871983 = weight(abstract_txt:bibliometric in 3119) [ClassicSimilarity], result of:
           0.10871983 = score(doc=3119,freq=1.0), product of:
             0.28126484 = queryWeight, product of:
               1.9833372 = boost
               6.184624 = idf(docFreq=236, maxDocs=42306)
               0.02293008 = queryNorm
             0.386539 = fieldWeight in 3119, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.184624 = idf(docFreq=236, maxDocs=42306)
               0.0625 = fieldNorm(doc=3119)
         0.078904614 = weight(abstract_txt:studies in 3119) [ClassicSimilarity], result of:
           0.078904614 = score(doc=3119,freq=2.0), product of:
             0.20637873 = queryWeight, product of:
               2.0807357 = boost
               4.325561 = idf(docFreq=1520, maxDocs=42306)
               0.02293008 = queryNorm
             0.3823292 = fieldWeight in 3119, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.325561 = idf(docFreq=1520, maxDocs=42306)
               0.0625 = fieldNorm(doc=3119)
         0.13078365 = weight(abstract_txt:diversity in 3119) [ClassicSimilarity], result of:
           0.13078365 = score(doc=3119,freq=1.0), product of:
             0.31813532 = queryWeight, product of:
               2.1093311 = boost
               6.5775104 = idf(docFreq=159, maxDocs=42306)
               0.02293008 = queryNorm
             0.4110944 = fieldWeight in 3119, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5775104 = idf(docFreq=159, maxDocs=42306)
               0.0625 = fieldNorm(doc=3119)
       0.36 = coord(9/25)
   

2. Zhang, L.; Rousseau, R.; Glänzel, W.: Diversity of references as an indicator of the interdisciplinarity of journals : taking similarity between subject fields into account (2016) 0.17

   0.17243122 = sum of:
     0.17243122 = product of:
       0.7184634 = sum of:
         0.026776154 = weight(abstract_txt:research in 4903) [ClassicSimilarity], result of:
           0.026776154 = score(doc=4903,freq=3.0), product of:
             0.07662456 = queryWeight, product of:
               1.0351965 = boost
               3.228045 = idf(docFreq=4557, maxDocs=42306)
               0.02293008 = queryNorm
             0.34944612 = fieldWeight in 4903, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.228045 = idf(docFreq=4557, maxDocs=42306)
               0.0625 = fieldNorm(doc=4903)
         0.20393272 = weight(abstract_txt:interdisciplinarity in 4903) [ClassicSimilarity], result of:
           0.20393272 = score(doc=4903,freq=4.0), product of:
             0.21389675 = queryWeight, product of:
               1.2229985 = boost
               7.6273327 = idf(docFreq=55, maxDocs=42306)
               0.02293008 = queryNorm
             0.9534166 = fieldWeight in 4903, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.6273327 = idf(docFreq=55, maxDocs=42306)
               0.0625 = fieldNorm(doc=4903)
         0.11046564 = weight(abstract_txt:journals in 4903) [ClassicSimilarity], result of:
           0.11046564 = score(doc=4903,freq=3.0), product of:
             0.19710031 = queryWeight, product of:
               1.6602844 = boost
               5.1772513 = idf(docFreq=648, maxDocs=42306)
               0.02293008 = queryNorm
             0.5604539 = fieldWeight in 4903, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.1772513 = idf(docFreq=648, maxDocs=42306)
               0.0625 = fieldNorm(doc=4903)
         0.07134375 = weight(abstract_txt:subject in 4903) [ClassicSimilarity], result of:
           0.07134375 = score(doc=4903,freq=3.0), product of:
             0.16857903 = queryWeight, product of:
               1.8805559 = boost
               3.9094145 = idf(docFreq=2305, maxDocs=42306)
               0.02293008 = queryNorm
             0.42320654 = fieldWeight in 4903, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9094145 = idf(docFreq=2305, maxDocs=42306)
               0.0625 = fieldNorm(doc=4903)
         0.0443779 = weight(abstract_txt:classification in 4903) [ClassicSimilarity], result of:
           0.0443779 = score(doc=4903,freq=1.0), product of:
             0.17716768 = queryWeight, product of:
               1.9278655 = boost
               4.007765 = idf(docFreq=2089, maxDocs=42306)
               0.02293008 = queryNorm
             0.2504853 = fieldWeight in 4903, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.007765 = idf(docFreq=2089, maxDocs=42306)
               0.0625 = fieldNorm(doc=4903)
         0.2615673 = weight(abstract_txt:diversity in 4903) [ClassicSimilarity], result of:
           0.2615673 = score(doc=4903,freq=4.0), product of:
             0.31813532 = queryWeight, product of:
               2.1093311 = boost
               6.5775104 = idf(docFreq=159, maxDocs=42306)
               0.02293008 = queryNorm
             0.8221888 = fieldWeight in 4903, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.5775104 = idf(docFreq=159, maxDocs=42306)
               0.0625 = fieldNorm(doc=4903)
       0.24 = coord(6/25)
   

3. Ni, C.; Sugimoto, C.R.; Jiang, J.: Venue-author-coupling : a measure for identifying disciplines through author communities (2013) 0.15

   0.14520553 = sum of:
     0.14520553 = product of:
       0.51859117 = sum of:
         0.05574156 = weight(abstract_txt:specialized in 2608) [ClassicSimilarity], result of:
           0.05574156 = score(doc=2608,freq=1.0), product of:
             0.14300537 = queryWeight, product of:
               6.2365837 = idf(docFreq=224, maxDocs=42306)
               0.02293008 = queryNorm
             0.38978648 = fieldWeight in 2608, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2365837 = idf(docFreq=224, maxDocs=42306)
               0.0625 = fieldNorm(doc=2608)
         0.01545922 = weight(abstract_txt:research in 2608) [ClassicSimilarity], result of:
           0.01545922 = score(doc=2608,freq=1.0), product of:
             0.07662456 = queryWeight, product of:
               1.0351965 = boost
               3.228045 = idf(docFreq=4557, maxDocs=42306)
               0.02293008 = queryNorm
             0.20175281 = fieldWeight in 2608, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.228045 = idf(docFreq=4557, maxDocs=42306)
               0.0625 = fieldNorm(doc=2608)
         0.017764654 = weight(abstract_txt:used in 2608) [ClassicSimilarity], result of:
           0.017764654 = score(doc=2608,freq=1.0), product of:
             0.08406478 = queryWeight, product of:
               1.0842911 = boost
               3.381136 = idf(docFreq=3910, maxDocs=42306)
               0.02293008 = queryNorm
             0.211321 = fieldWeight in 2608, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.381136 = idf(docFreq=3910, maxDocs=42306)
               0.0625 = fieldNorm(doc=2608)
         0.12755473 = weight(abstract_txt:journals in 2608) [ClassicSimilarity], result of:
           0.12755473 = score(doc=2608,freq=4.0), product of:
             0.19710031 = queryWeight, product of:
               1.6602844 = boost
               5.1772513 = idf(docFreq=648, maxDocs=42306)
               0.02293008 = queryNorm
             0.6471564 = fieldWeight in 2608, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.1772513 = idf(docFreq=648, maxDocs=42306)
               0.0625 = fieldNorm(doc=2608)
         0.14897324 = weight(abstract_txt:disciplines in 2608) [ClassicSimilarity], result of:
           0.14897324 = score(doc=2608,freq=4.0), product of:
             0.21858907 = queryWeight, product of:
               1.7484493 = boost
               5.452175 = idf(docFreq=492, maxDocs=42306)
               0.02293008 = queryNorm
             0.6815219 = fieldWeight in 2608, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.452175 = idf(docFreq=492, maxDocs=42306)
               0.0625 = fieldNorm(doc=2608)
         0.0443779 = weight(abstract_txt:classification in 2608) [ClassicSimilarity], result of:
           0.0443779 = score(doc=2608,freq=1.0), product of:
             0.17716768 = queryWeight, product of:
               1.9278655 = boost
               4.007765 = idf(docFreq=2089, maxDocs=42306)
               0.02293008 = queryNorm
             0.2504853 = fieldWeight in 2608, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.007765 = idf(docFreq=2089, maxDocs=42306)
               0.0625 = fieldNorm(doc=2608)
         0.10871983 = weight(abstract_txt:bibliometric in 2608) [ClassicSimilarity], result of:
           0.10871983 = score(doc=2608,freq=1.0), product of:
             0.28126484 = queryWeight, product of:
               1.9833372 = boost
               6.184624 = idf(docFreq=236, maxDocs=42306)
               0.02293008 = queryNorm
             0.386539 = fieldWeight in 2608, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.184624 = idf(docFreq=236, maxDocs=42306)
               0.0625 = fieldNorm(doc=2608)
       0.28 = coord(7/25)
   

4. Fang, H.: Classifying research articles in multidisciplinary sciences journals into subject categories (2015) 0.13

   0.13479255 = sum of:
     0.13479255 = product of:
       0.48140198 = sum of:
         0.05854628 = weight(abstract_txt:accurate in 4195) [ClassicSimilarity], result of:
           0.05854628 = score(doc=4195,freq=1.0), product of:
             0.14776303 = queryWeight, product of:
               1.0164984 = boost
               6.339478 = idf(docFreq=202, maxDocs=42306)
               0.02293008 = queryNorm
             0.39621738 = fieldWeight in 4195, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.339478 = idf(docFreq=202, maxDocs=42306)
               0.0625 = fieldNorm(doc=4195)
         0.01545922 = weight(abstract_txt:research in 4195) [ClassicSimilarity], result of:
           0.01545922 = score(doc=4195,freq=1.0), product of:
             0.07662456 = queryWeight, product of:
               1.0351965 = boost
               3.228045 = idf(docFreq=4557, maxDocs=42306)
               0.02293008 = queryNorm
             0.20175281 = fieldWeight in 4195, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.228045 = idf(docFreq=4557, maxDocs=42306)
               0.0625 = fieldNorm(doc=4195)
         0.017764654 = weight(abstract_txt:used in 4195) [ClassicSimilarity], result of:
           0.017764654 = score(doc=4195,freq=1.0), product of:
             0.08406478 = queryWeight, product of:
               1.0842911 = boost
               3.381136 = idf(docFreq=3910, maxDocs=42306)
               0.02293008 = queryNorm
             0.211321 = fieldWeight in 4195, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.381136 = idf(docFreq=3910, maxDocs=42306)
               0.0625 = fieldNorm(doc=4195)
         0.12755473 = weight(abstract_txt:journals in 4195) [ClassicSimilarity], result of:
           0.12755473 = score(doc=4195,freq=4.0), product of:
             0.19710031 = queryWeight, product of:
               1.6602844 = boost
               5.1772513 = idf(docFreq=648, maxDocs=42306)
               0.02293008 = queryNorm
             0.6471564 = fieldWeight in 4195, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.1772513 = idf(docFreq=648, maxDocs=42306)
               0.0625 = fieldNorm(doc=4195)
         0.10897937 = weight(abstract_txt:subject in 4195) [ClassicSimilarity], result of:
           0.10897937 = score(doc=4195,freq=7.0), product of:
             0.16857903 = queryWeight, product of:
               1.8805559 = boost
               3.9094145 = idf(docFreq=2305, maxDocs=42306)
               0.02293008 = queryNorm
             0.6464586 = fieldWeight in 4195, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               3.9094145 = idf(docFreq=2305, maxDocs=42306)
               0.0625 = fieldNorm(doc=4195)
         0.0443779 = weight(abstract_txt:classification in 4195) [ClassicSimilarity], result of:
           0.0443779 = score(doc=4195,freq=1.0), product of:
             0.17716768 = queryWeight, product of:
               1.9278655 = boost
               4.007765 = idf(docFreq=2089, maxDocs=42306)
               0.02293008 = queryNorm
             0.2504853 = fieldWeight in 4195, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.007765 = idf(docFreq=2089, maxDocs=42306)
               0.0625 = fieldNorm(doc=4195)
         0.10871983 = weight(abstract_txt:bibliometric in 4195) [ClassicSimilarity], result of:
           0.10871983 = score(doc=4195,freq=1.0), product of:
             0.28126484 = queryWeight, product of:
               1.9833372 = boost
               6.184624 = idf(docFreq=236, maxDocs=42306)
               0.02293008 = queryNorm
             0.386539 = fieldWeight in 4195, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.184624 = idf(docFreq=236, maxDocs=42306)
               0.0625 = fieldNorm(doc=4195)
       0.28 = coord(7/25)
   

5. Casanova, P.G.: Clasificaciones y definiciones : notas para un bibliotecario (1996) 0.13

   0.13255571 = sum of:
     0.13255571 = product of:
       0.5523155 = sum of:
         0.09097342 = weight(abstract_txt:flexibility in 991) [ClassicSimilarity], result of:
           0.09097342 = score(doc=991,freq=1.0), product of:
             0.17083202 = queryWeight, product of:
               1.0929706 = boost
               6.8164024 = idf(docFreq=125, maxDocs=42306)
               0.02293008 = queryNorm
             0.53253144 = fieldWeight in 991, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.8164024 = idf(docFreq=125, maxDocs=42306)
               0.078125 = fieldNorm(doc=991)
         0.12745795 = weight(abstract_txt:interdisciplinarity in 991) [ClassicSimilarity], result of:
           0.12745795 = score(doc=991,freq=1.0), product of:
             0.21389675 = queryWeight, product of:
               1.2229985 = boost
               7.6273327 = idf(docFreq=55, maxDocs=42306)
               0.02293008 = queryNorm
             0.5958854 = fieldWeight in 991, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.6273327 = idf(docFreq=55, maxDocs=42306)
               0.078125 = fieldNorm(doc=991)
         0.051242992 = weight(abstract_txt:problem in 991) [ClassicSimilarity], result of:
           0.051242992 = score(doc=991,freq=1.0), product of:
             0.14679995 = queryWeight, product of:
               1.4328535 = boost
               4.4680552 = idf(docFreq=1318, maxDocs=42306)
               0.02293008 = queryNorm
             0.34906682 = fieldWeight in 991, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4680552 = idf(docFreq=1318, maxDocs=42306)
               0.078125 = fieldNorm(doc=991)
         0.051487915 = weight(abstract_txt:subject in 991) [ClassicSimilarity], result of:
           0.051487915 = score(doc=991,freq=1.0), product of:
             0.16857903 = queryWeight, product of:
               1.8805559 = boost
               3.9094145 = idf(docFreq=2305, maxDocs=42306)
               0.02293008 = queryNorm
             0.30542302 = fieldWeight in 991, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9094145 = idf(docFreq=2305, maxDocs=42306)
               0.078125 = fieldNorm(doc=991)
         0.09608097 = weight(abstract_txt:classification in 991) [ClassicSimilarity], result of:
           0.09608097 = score(doc=991,freq=3.0), product of:
             0.17716768 = queryWeight, product of:
               1.9278655 = boost
               4.007765 = idf(docFreq=2089, maxDocs=42306)
               0.02293008 = queryNorm
             0.54231656 = fieldWeight in 991, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.007765 = idf(docFreq=2089, maxDocs=42306)
               0.078125 = fieldNorm(doc=991)
         0.13507225 = weight(abstract_txt:classifications in 991) [ClassicSimilarity], result of:
           0.13507225 = score(doc=991,freq=1.0), product of:
             0.28012186 = queryWeight, product of:
               1.9793032 = boost
               6.172045 = idf(docFreq=239, maxDocs=42306)
               0.02293008 = queryNorm
             0.48219103 = fieldWeight in 991, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.172045 = idf(docFreq=239, maxDocs=42306)
               0.078125 = fieldNorm(doc=991)
       0.24 = coord(6/25)