Document (#1443)

Author
Richmond, P.A.
Title
Reading list in classification theory
Source
Library resources and technical services. 16(1972), S.364-382
Year
1972
Abstract
Introductory reading list covering most of the areas of modern classification theory. Includes definitions, bibliographic and nonbibliographic classification, recent views on classification, subjects related to classification, and miscellaneous background material such as scientific method, logic, statistical methods, etc.
Theme
Literaturübersicht

Similar documents (author)

  1. Richmond, P.A.: Futuristic aspects of subject access (1983) 5.56
    5.56391 = sum of:
      5.56391 = weight(author_txt:richmond in 107) [ClassicSimilarity], result of:
        5.56391 = fieldWeight in 107, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.902256 = idf(docFreq=15, maxDocs=43254)
          0.625 = fieldNorm(doc=107)
    
  2. Richmond, P.A.: Precedent-setting contributions to modern classification (1988) 5.56
    5.56391 = sum of:
      5.56391 = weight(author_txt:richmond in 673) [ClassicSimilarity], result of:
        5.56391 = fieldWeight in 673, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.902256 = idf(docFreq=15, maxDocs=43254)
          0.625 = fieldNorm(doc=673)
    
  3. Richmond, P.A.: Introduction to PRECIS for North American usage (1981) 5.56
    5.56391 = sum of:
      5.56391 = weight(author_txt:richmond in 830) [ClassicSimilarity], result of:
        5.56391 = fieldWeight in 830, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.902256 = idf(docFreq=15, maxDocs=43254)
          0.625 = fieldNorm(doc=830)
    
  4. Richmond, P.A.: Classification from PRECIS : some possibilities (1976) 5.56
    5.56391 = sum of:
      5.56391 = weight(author_txt:richmond in 1200) [ClassicSimilarity], result of:
        5.56391 = fieldWeight in 1200, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.902256 = idf(docFreq=15, maxDocs=43254)
          0.625 = fieldNorm(doc=1200)
    
  5. Richmond, P.A.: ¬The future of classification (1974) 5.56
    5.56391 = sum of:
      5.56391 = weight(author_txt:richmond in 1262) [ClassicSimilarity], result of:
        5.56391 = fieldWeight in 1262, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.902256 = idf(docFreq=15, maxDocs=43254)
          0.625 = fieldNorm(doc=1262)
    

Similar documents (content)

  1. Ranganathan, S.R.: Facet analysis: fundamental categories (1985) 0.21
    0.20891903 = sum of:
      0.20891903 = product of:
        0.52229756 = sum of:
          0.00792165 = weight(abstract_txt:such in 5632) [ClassicSimilarity], result of:
            0.00792165 = score(doc=5632,freq=1.0), product of:
              0.058874212 = queryWeight, product of:
                3.4445343 = idf(docFreq=3752, maxDocs=43254)
                0.017092068 = queryNorm
              0.13455212 = fieldWeight in 5632, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4445343 = idf(docFreq=3752, maxDocs=43254)
                0.0390625 = fieldNorm(doc=5632)
          0.023971235 = weight(abstract_txt:most in 5632) [ClassicSimilarity], result of:
            0.023971235 = score(doc=5632,freq=4.0), product of:
              0.077592835 = queryWeight, product of:
                1.1480168 = boost
                3.9543834 = idf(docFreq=2253, maxDocs=43254)
                0.017092068 = queryNorm
              0.3089362 = fieldWeight in 5632, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.9543834 = idf(docFreq=2253, maxDocs=43254)
                0.0390625 = fieldNorm(doc=5632)
          0.014646351 = weight(abstract_txt:bibliographic in 5632) [ClassicSimilarity], result of:
            0.014646351 = score(doc=5632,freq=1.0), product of:
              0.08868857 = queryWeight, product of:
                1.227358 = boost
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.017092068 = queryNorm
              0.16514362 = fieldWeight in 5632, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.0390625 = fieldNorm(doc=5632)
          0.017809862 = weight(abstract_txt:method in 5632) [ClassicSimilarity], result of:
            0.017809862 = score(doc=5632,freq=1.0), product of:
              0.10103884 = queryWeight, product of:
                1.3100312 = boost
                4.5124474 = idf(docFreq=1289, maxDocs=43254)
                0.017092068 = queryNorm
              0.17626747 = fieldWeight in 5632, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5124474 = idf(docFreq=1289, maxDocs=43254)
                0.0390625 = fieldNorm(doc=5632)
          0.022607407 = weight(abstract_txt:recent in 5632) [ClassicSimilarity], result of:
            0.022607407 = score(doc=5632,freq=1.0), product of:
              0.11845367 = queryWeight, product of:
                1.4184424 = boost
                4.8858733 = idf(docFreq=887, maxDocs=43254)
                0.017092068 = queryNorm
              0.19085443 = fieldWeight in 5632, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.8858733 = idf(docFreq=887, maxDocs=43254)
                0.0390625 = fieldNorm(doc=5632)
          0.029221432 = weight(abstract_txt:material in 5632) [ClassicSimilarity], result of:
            0.029221432 = score(doc=5632,freq=1.0), product of:
              0.14055587 = queryWeight, product of:
                1.545119 = boost
                5.3222156 = idf(docFreq=573, maxDocs=43254)
                0.017092068 = queryNorm
              0.20789905 = fieldWeight in 5632, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.3222156 = idf(docFreq=573, maxDocs=43254)
                0.0390625 = fieldNorm(doc=5632)
          0.030813655 = weight(abstract_txt:subjects in 5632) [ClassicSimilarity], result of:
            0.030813655 = score(doc=5632,freq=1.0), product of:
              0.14561635 = queryWeight, product of:
                1.5726879 = boost
                5.417177 = idf(docFreq=521, maxDocs=43254)
                0.017092068 = queryNorm
              0.21160848 = fieldWeight in 5632, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.417177 = idf(docFreq=521, maxDocs=43254)
                0.0390625 = fieldNorm(doc=5632)
          0.053715974 = weight(abstract_txt:modern in 5632) [ClassicSimilarity], result of:
            0.053715974 = score(doc=5632,freq=2.0), product of:
              0.167407 = queryWeight, product of:
                1.6862589 = boost
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.017092068 = queryNorm
              0.32087052 = fieldWeight in 5632, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.0390625 = fieldNorm(doc=5632)
          0.07387489 = weight(abstract_txt:theory in 5632) [ClassicSimilarity], result of:
            0.07387489 = score(doc=5632,freq=4.0), product of:
              0.20703125 = queryWeight, product of:
                2.6519809 = boost
                4.5674195 = idf(docFreq=1220, maxDocs=43254)
                0.017092068 = queryNorm
              0.35682964 = fieldWeight in 5632, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.5674195 = idf(docFreq=1220, maxDocs=43254)
                0.0390625 = fieldNorm(doc=5632)
          0.24771513 = weight(abstract_txt:classification in 5632) [ClassicSimilarity], result of:
            0.24771513 = score(doc=5632,freq=16.0), product of:
              0.3965516 = queryWeight, product of:
                5.8032637 = boost
                3.9979079 = idf(docFreq=2157, maxDocs=43254)
                0.017092068 = queryNorm
              0.6246731 = fieldWeight in 5632, product of:
                4.0 = tf(freq=16.0), with freq of:
                  16.0 = termFreq=16.0
                3.9979079 = idf(docFreq=2157, maxDocs=43254)
                0.0390625 = fieldNorm(doc=5632)
        0.4 = coord(10/25)
    
  2. Fraser, C.: Mathematics in library and review classification systems : an historical overview (2020) 0.18
    0.17808358 = sum of:
      0.17808358 = product of:
        0.6360128 = sum of:
          0.023971235 = weight(abstract_txt:most in 901) [ClassicSimilarity], result of:
            0.023971235 = score(doc=901,freq=1.0), product of:
              0.077592835 = queryWeight, product of:
                1.1480168 = boost
                3.9543834 = idf(docFreq=2253, maxDocs=43254)
                0.017092068 = queryNorm
              0.3089362 = fieldWeight in 901, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9543834 = idf(docFreq=2253, maxDocs=43254)
                0.078125 = fieldNorm(doc=901)
          0.044904627 = weight(abstract_txt:areas in 901) [ClassicSimilarity], result of:
            0.044904627 = score(doc=901,freq=1.0), product of:
              0.117911294 = queryWeight, product of:
                1.4151913 = boost
                4.874675 = idf(docFreq=897, maxDocs=43254)
                0.017092068 = queryNorm
              0.38083398 = fieldWeight in 901, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.874675 = idf(docFreq=897, maxDocs=43254)
                0.078125 = fieldNorm(doc=901)
          0.06162731 = weight(abstract_txt:subjects in 901) [ClassicSimilarity], result of:
            0.06162731 = score(doc=901,freq=1.0), product of:
              0.14561635 = queryWeight, product of:
                1.5726879 = boost
                5.417177 = idf(docFreq=521, maxDocs=43254)
                0.017092068 = queryNorm
              0.42321697 = fieldWeight in 901, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.417177 = idf(docFreq=521, maxDocs=43254)
                0.078125 = fieldNorm(doc=901)
          0.07154451 = weight(abstract_txt:background in 901) [ClassicSimilarity], result of:
            0.07154451 = score(doc=901,freq=1.0), product of:
              0.16084673 = queryWeight, product of:
                1.6528884 = boost
                5.693431 = idf(docFreq=395, maxDocs=43254)
                0.017092068 = queryNorm
              0.4447993 = fieldWeight in 901, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.693431 = idf(docFreq=395, maxDocs=43254)
                0.078125 = fieldNorm(doc=901)
          0.07596586 = weight(abstract_txt:modern in 901) [ClassicSimilarity], result of:
            0.07596586 = score(doc=901,freq=1.0), product of:
              0.167407 = queryWeight, product of:
                1.6862589 = boost
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.017092068 = queryNorm
              0.45377943 = fieldWeight in 901, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.078125 = fieldNorm(doc=901)
          0.08104527 = weight(abstract_txt:views in 901) [ClassicSimilarity], result of:
            0.08104527 = score(doc=901,freq=1.0), product of:
              0.17478861 = queryWeight, product of:
                1.7230346 = boost
                5.935052 = idf(docFreq=310, maxDocs=43254)
                0.017092068 = queryNorm
              0.46367592 = fieldWeight in 901, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.935052 = idf(docFreq=310, maxDocs=43254)
                0.078125 = fieldNorm(doc=901)
          0.27695394 = weight(abstract_txt:classification in 901) [ClassicSimilarity], result of:
            0.27695394 = score(doc=901,freq=5.0), product of:
              0.3965516 = queryWeight, product of:
                5.8032637 = boost
                3.9979079 = idf(docFreq=2157, maxDocs=43254)
                0.017092068 = queryNorm
              0.6984058 = fieldWeight in 901, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.9979079 = idf(docFreq=2157, maxDocs=43254)
                0.078125 = fieldNorm(doc=901)
        0.28 = coord(7/25)
    
  3. Hjoerland, B.: ¬The classification of psychology : a case study in the classification of a knowledge field (1998) 0.15
    0.15476678 = sum of:
      0.15476678 = product of:
        0.4836462 = sum of:
          0.019613566 = weight(abstract_txt:methods in 5784) [ClassicSimilarity], result of:
            0.019613566 = score(doc=5784,freq=1.0), product of:
              0.086099446 = queryWeight, product of:
                1.2093099 = boost
                4.1655097 = idf(docFreq=1824, maxDocs=43254)
                0.017092068 = queryNorm
              0.22780131 = fieldWeight in 5784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1655097 = idf(docFreq=1824, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5784)
          0.020454112 = weight(abstract_txt:related in 5784) [ClassicSimilarity], result of:
            0.020454112 = score(doc=5784,freq=1.0), product of:
              0.08854208 = queryWeight, product of:
                1.226344 = boost
                4.224184 = idf(docFreq=1720, maxDocs=43254)
                0.017092068 = queryNorm
              0.23101006 = fieldWeight in 5784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.224184 = idf(docFreq=1720, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5784)
          0.024933806 = weight(abstract_txt:method in 5784) [ClassicSimilarity], result of:
            0.024933806 = score(doc=5784,freq=1.0), product of:
              0.10103884 = queryWeight, product of:
                1.3100312 = boost
                4.5124474 = idf(docFreq=1289, maxDocs=43254)
                0.017092068 = queryNorm
              0.24677446 = fieldWeight in 5784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5124474 = idf(docFreq=1289, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5784)
          0.027637098 = weight(abstract_txt:scientific in 5784) [ClassicSimilarity], result of:
            0.027637098 = score(doc=5784,freq=1.0), product of:
              0.10821587 = queryWeight, product of:
                1.3557603 = boost
                4.669963 = idf(docFreq=1101, maxDocs=43254)
                0.017092068 = queryNorm
              0.2553886 = fieldWeight in 5784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.669963 = idf(docFreq=1101, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5784)
          0.0531761 = weight(abstract_txt:modern in 5784) [ClassicSimilarity], result of:
            0.0531761 = score(doc=5784,freq=1.0), product of:
              0.167407 = queryWeight, product of:
                1.6862589 = boost
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.017092068 = queryNorm
              0.3176456 = fieldWeight in 5784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5784)
          0.05673169 = weight(abstract_txt:views in 5784) [ClassicSimilarity], result of:
            0.05673169 = score(doc=5784,freq=1.0), product of:
              0.17478861 = queryWeight, product of:
                1.7230346 = boost
                5.935052 = idf(docFreq=310, maxDocs=43254)
                0.017092068 = queryNorm
              0.32457316 = fieldWeight in 5784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.935052 = idf(docFreq=310, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5784)
          0.051712424 = weight(abstract_txt:theory in 5784) [ClassicSimilarity], result of:
            0.051712424 = score(doc=5784,freq=1.0), product of:
              0.20703125 = queryWeight, product of:
                2.6519809 = boost
                4.5674195 = idf(docFreq=1220, maxDocs=43254)
                0.017092068 = queryNorm
              0.24978076 = fieldWeight in 5784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5674195 = idf(docFreq=1220, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5784)
          0.22938742 = weight(abstract_txt:classification in 5784) [ClassicSimilarity], result of:
            0.22938742 = score(doc=5784,freq=7.0), product of:
              0.3965516 = queryWeight, product of:
                5.8032637 = boost
                3.9979079 = idf(docFreq=2157, maxDocs=43254)
                0.017092068 = queryNorm
              0.5784554 = fieldWeight in 5784, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                3.9979079 = idf(docFreq=2157, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5784)
        0.32 = coord(8/25)
    
  4. Körner, S.: Classification theory (1976) 0.15
    0.1541308 = sum of:
      0.1541308 = product of:
        0.6422117 = sum of:
          0.01901196 = weight(abstract_txt:such in 1761) [ClassicSimilarity], result of:
            0.01901196 = score(doc=1761,freq=1.0), product of:
              0.058874212 = queryWeight, product of:
                3.4445343 = idf(docFreq=3752, maxDocs=43254)
                0.017092068 = queryNorm
              0.3229251 = fieldWeight in 1761, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4445343 = idf(docFreq=3752, maxDocs=43254)
                0.09375 = fieldNorm(doc=1761)
          0.040680535 = weight(abstract_txt:most in 1761) [ClassicSimilarity], result of:
            0.040680535 = score(doc=1761,freq=2.0), product of:
              0.077592835 = queryWeight, product of:
                1.1480168 = boost
                3.9543834 = idf(docFreq=2253, maxDocs=43254)
                0.017092068 = queryNorm
              0.5242821 = fieldWeight in 1761, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9543834 = idf(docFreq=2253, maxDocs=43254)
                0.09375 = fieldNorm(doc=1761)
          0.042743668 = weight(abstract_txt:method in 1761) [ClassicSimilarity], result of:
            0.042743668 = score(doc=1761,freq=1.0), product of:
              0.10103884 = queryWeight, product of:
                1.3100312 = boost
                4.5124474 = idf(docFreq=1289, maxDocs=43254)
                0.017092068 = queryNorm
              0.42304194 = fieldWeight in 1761, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5124474 = idf(docFreq=1289, maxDocs=43254)
                0.09375 = fieldNorm(doc=1761)
          0.0820609 = weight(abstract_txt:scientific in 1761) [ClassicSimilarity], result of:
            0.0820609 = score(doc=1761,freq=3.0), product of:
              0.10821587 = queryWeight, product of:
                1.3557603 = boost
                4.669963 = idf(docFreq=1101, maxDocs=43254)
                0.017092068 = queryNorm
              0.75830746 = fieldWeight in 1761, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.669963 = idf(docFreq=1101, maxDocs=43254)
                0.09375 = fieldNorm(doc=1761)
          0.12536985 = weight(abstract_txt:theory in 1761) [ClassicSimilarity], result of:
            0.12536985 = score(doc=1761,freq=2.0), product of:
              0.20703125 = queryWeight, product of:
                2.6519809 = boost
                4.5674195 = idf(docFreq=1220, maxDocs=43254)
                0.017092068 = queryNorm
              0.60556 = fieldWeight in 1761, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.5674195 = idf(docFreq=1220, maxDocs=43254)
                0.09375 = fieldNorm(doc=1761)
          0.33234474 = weight(abstract_txt:classification in 1761) [ClassicSimilarity], result of:
            0.33234474 = score(doc=1761,freq=5.0), product of:
              0.3965516 = queryWeight, product of:
                5.8032637 = boost
                3.9979079 = idf(docFreq=2157, maxDocs=43254)
                0.017092068 = queryNorm
              0.83808696 = fieldWeight in 1761, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.9979079 = idf(docFreq=2157, maxDocs=43254)
                0.09375 = fieldNorm(doc=1761)
        0.24 = coord(6/25)
    
  5. Beghtol, C.: Exploring new approaches to the organization of knowledge : the subject classification of James Duff Brown (2004) 0.15
    0.15295856 = sum of:
      0.15295856 = product of:
        0.6373273 = sum of:
          0.041426137 = weight(abstract_txt:bibliographic in 1995) [ClassicSimilarity], result of:
            0.041426137 = score(doc=1995,freq=2.0), product of:
              0.08868857 = queryWeight, product of:
                1.227358 = boost
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.017092068 = queryNorm
              0.46709672 = fieldWeight in 1995, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.078125 = fieldNorm(doc=1995)
          0.06162731 = weight(abstract_txt:subjects in 1995) [ClassicSimilarity], result of:
            0.06162731 = score(doc=1995,freq=1.0), product of:
              0.14561635 = queryWeight, product of:
                1.5726879 = boost
                5.417177 = idf(docFreq=521, maxDocs=43254)
                0.017092068 = queryNorm
              0.42321697 = fieldWeight in 1995, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.417177 = idf(docFreq=521, maxDocs=43254)
                0.078125 = fieldNorm(doc=1995)
          0.07596586 = weight(abstract_txt:modern in 1995) [ClassicSimilarity], result of:
            0.07596586 = score(doc=1995,freq=1.0), product of:
              0.167407 = queryWeight, product of:
                1.6862589 = boost
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.017092068 = queryNorm
              0.45377943 = fieldWeight in 1995, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.078125 = fieldNorm(doc=1995)
          0.08104527 = weight(abstract_txt:views in 1995) [ClassicSimilarity], result of:
            0.08104527 = score(doc=1995,freq=1.0), product of:
              0.17478861 = queryWeight, product of:
                1.7230346 = boost
                5.935052 = idf(docFreq=310, maxDocs=43254)
                0.017092068 = queryNorm
              0.46367592 = fieldWeight in 1995, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.935052 = idf(docFreq=310, maxDocs=43254)
                0.078125 = fieldNorm(doc=1995)
          0.07387489 = weight(abstract_txt:theory in 1995) [ClassicSimilarity], result of:
            0.07387489 = score(doc=1995,freq=1.0), product of:
              0.20703125 = queryWeight, product of:
                2.6519809 = boost
                4.5674195 = idf(docFreq=1220, maxDocs=43254)
                0.017092068 = queryNorm
              0.35682964 = fieldWeight in 1995, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5674195 = idf(docFreq=1220, maxDocs=43254)
                0.078125 = fieldNorm(doc=1995)
          0.30338782 = weight(abstract_txt:classification in 1995) [ClassicSimilarity], result of:
            0.30338782 = score(doc=1995,freq=6.0), product of:
              0.3965516 = queryWeight, product of:
                5.8032637 = boost
                3.9979079 = idf(docFreq=2157, maxDocs=43254)
                0.017092068 = queryNorm
              0.7650652 = fieldWeight in 1995, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.9979079 = idf(docFreq=2157, maxDocs=43254)
                0.078125 = fieldNorm(doc=1995)
        0.24 = coord(6/25)