Document (#4843)

Author
Shaw, W.M.
Title
Subject and citation indexing : pt.2: the optimal, cluster-based retrieval performance of composite representations
Source
Journal of the American Society for Information Science. 42(1991) no.9, S.676-684
Year
1991
Abstract
Fortsetzung von pt.1: experimental retrieval results are presented as a function of the exhaustivity and similarity of the composite representations and reveal consistent patterns from which optimal performance levels can be identified. The optimal performance values provide an assessment of the absolute capacity of each composite representation to associate documents relevant to different queries in single-link hierarchies. The effectiveness of the exhaustive representation composed of references and citations is materially superior to the effectiveness of exhaustive composite representations that include subject descriptions
Theme
Citation indexing

Similar documents (author)

  1. Shaw, R.R.: Classification systems (1962/63) 5.00
    4.9974713 = sum of:
      4.9974713 = weight(author_txt:shaw in 603) [ClassicSimilarity], result of:
        4.9974713 = fieldWeight in 603, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.995954 = idf(docFreq=38, maxDocs=42596)
          0.625 = fieldNorm(doc=603)
    
  2. Shaw, W.M.: Subject and citation indexing : pt.1: the clustering structure of composite representations in the cystic fibrosis document collection (1991) 5.00
    4.9974713 = sum of:
      4.9974713 = weight(author_txt:shaw in 4841) [ClassicSimilarity], result of:
        4.9974713 = fieldWeight in 4841, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.995954 = idf(docFreq=38, maxDocs=42596)
          0.625 = fieldNorm(doc=4841)
    
  3. Shaw, S.: ¬The Internet as an entertainment system (1994) 5.00
    4.9974713 = sum of:
      4.9974713 = weight(author_txt:shaw in 267) [ClassicSimilarity], result of:
        4.9974713 = fieldWeight in 267, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.995954 = idf(docFreq=38, maxDocs=42596)
          0.625 = fieldNorm(doc=267)
    
  4. Shaw, D.J.: Cataloguing rare books online (1993) 5.00
    4.9974713 = sum of:
      4.9974713 = weight(author_txt:shaw in 645) [ClassicSimilarity], result of:
        4.9974713 = fieldWeight in 645, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.995954 = idf(docFreq=38, maxDocs=42596)
          0.625 = fieldNorm(doc=645)
    
  5. Shaw, D.: Automating access to bibliographic information (1996) 5.00
    4.9974713 = sum of:
      4.9974713 = weight(author_txt:shaw in 4420) [ClassicSimilarity], result of:
        4.9974713 = fieldWeight in 4420, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.995954 = idf(docFreq=38, maxDocs=42596)
          0.625 = fieldNorm(doc=4420)
    

Similar documents (content)

  1. Shaw, W.M.: Subject and citation indexing : pt.1: the clustering structure of composite representations in the cystic fibrosis document collection (1991) 0.62
    0.62007004 = sum of:
      0.62007004 = product of:
        1.7224166 = sum of:
          0.05715658 = weight(abstract_txt:descriptions in 4841) [ClassicSimilarity], result of:
            0.05715658 = score(doc=4841,freq=2.0), product of:
              0.08743704 = queryWeight, product of:
                1.0363714 = boost
                5.9165125 = idf(docFreq=311, maxDocs=42596)
                0.014259827 = queryNorm
              0.65368843 = fieldWeight in 4841, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.9165125 = idf(docFreq=311, maxDocs=42596)
                0.078125 = fieldNorm(doc=4841)
          0.0480067 = weight(abstract_txt:reveal in 4841) [ClassicSimilarity], result of:
            0.0480067 = score(doc=4841,freq=1.0), product of:
              0.098068416 = queryWeight, product of:
                1.0975701 = boost
                6.265888 = idf(docFreq=219, maxDocs=42596)
                0.014259827 = queryNorm
              0.48952252 = fieldWeight in 4841, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.265888 = idf(docFreq=219, maxDocs=42596)
                0.078125 = fieldNorm(doc=4841)
          0.06682171 = weight(abstract_txt:composed in 4841) [ClassicSimilarity], result of:
            0.06682171 = score(doc=4841,freq=1.0), product of:
              0.122256786 = queryWeight, product of:
                1.2254741 = boost
                6.9960766 = idf(docFreq=105, maxDocs=42596)
                0.014259827 = queryNorm
              0.5465685 = fieldWeight in 4841, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9960766 = idf(docFreq=105, maxDocs=42596)
                0.078125 = fieldNorm(doc=4841)
          0.03294397 = weight(abstract_txt:subject in 4841) [ClassicSimilarity], result of:
            0.03294397 = score(doc=4841,freq=2.0), product of:
              0.07629778 = queryWeight, product of:
                1.369111 = boost
                3.9080403 = idf(docFreq=2324, maxDocs=42596)
                0.014259827 = queryNorm
              0.43178153 = fieldWeight in 4841, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9080403 = idf(docFreq=2324, maxDocs=42596)
                0.078125 = fieldNorm(doc=4841)
          0.20325468 = weight(abstract_txt:exhaustivity in 4841) [ClassicSimilarity], result of:
            0.20325468 = score(doc=4841,freq=3.0), product of:
              0.17795679 = queryWeight, product of:
                1.4785123 = boost
                8.4406395 = idf(docFreq=24, maxDocs=42596)
                0.014259827 = queryNorm
              1.1421576 = fieldWeight in 4841, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                8.4406395 = idf(docFreq=24, maxDocs=42596)
                0.078125 = fieldNorm(doc=4841)
          0.06745212 = weight(abstract_txt:representation in 4841) [ClassicSimilarity], result of:
            0.06745212 = score(doc=4841,freq=2.0), product of:
              0.123024516 = queryWeight, product of:
                1.7385153 = boost
                4.9624815 = idf(docFreq=809, maxDocs=42596)
                0.014259827 = queryNorm
              0.5482819 = fieldWeight in 4841, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.9624815 = idf(docFreq=809, maxDocs=42596)
                0.078125 = fieldNorm(doc=4841)
          0.18438025 = weight(abstract_txt:exhaustive in 4841) [ClassicSimilarity], result of:
            0.18438025 = score(doc=4841,freq=1.0), product of:
              0.30302668 = queryWeight, product of:
                2.7284946 = boost
                7.788315 = idf(docFreq=47, maxDocs=42596)
                0.014259827 = queryNorm
              0.6084621 = fieldWeight in 4841, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.788315 = idf(docFreq=47, maxDocs=42596)
                0.078125 = fieldNorm(doc=4841)
          0.25650188 = weight(abstract_txt:representations in 4841) [ClassicSimilarity], result of:
            0.25650188 = score(doc=4841,freq=4.0), product of:
              0.2723174 = queryWeight, product of:
                3.16786 = boost
                6.0283036 = idf(docFreq=278, maxDocs=42596)
                0.014259827 = queryNorm
              0.9419224 = fieldWeight in 4841, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.0283036 = idf(docFreq=278, maxDocs=42596)
                0.078125 = fieldNorm(doc=4841)
          0.8058987 = weight(abstract_txt:composite in 4841) [ClassicSimilarity], result of:
            0.8058987 = score(doc=4841,freq=4.0), product of:
              0.6429565 = queryWeight, product of:
                5.6206746 = boost
                8.02193 = idf(docFreq=37, maxDocs=42596)
                0.014259827 = queryNorm
              1.2534266 = fieldWeight in 4841, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                8.02193 = idf(docFreq=37, maxDocs=42596)
                0.078125 = fieldNorm(doc=4841)
        0.36 = coord(9/25)
    
  2. Burgin, R.: ¬The effect of indexing exhaustivity on retrieval performance (1991) 0.35
    0.3500854 = sum of:
      0.3500854 = product of:
        0.97245944 = sum of:
          0.036308233 = weight(abstract_txt:link in 6263) [ClassicSimilarity], result of:
            0.036308233 = score(doc=6263,freq=1.0), product of:
              0.08140755 = queryWeight, product of:
                5.7088733 = idf(docFreq=383, maxDocs=42596)
                0.014259827 = queryNorm
              0.44600573 = fieldWeight in 6263, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7088733 = idf(docFreq=383, maxDocs=42596)
                0.078125 = fieldNorm(doc=6263)
          0.032411363 = weight(abstract_txt:retrieval in 6263) [ClassicSimilarity], result of:
            0.032411363 = score(doc=6263,freq=4.0), product of:
              0.059903122 = queryWeight, product of:
                1.2131301 = boost
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.014259827 = queryNorm
              0.541063 = fieldWeight in 6263, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.078125 = fieldNorm(doc=6263)
          0.023294907 = weight(abstract_txt:subject in 6263) [ClassicSimilarity], result of:
            0.023294907 = score(doc=6263,freq=1.0), product of:
              0.07629778 = queryWeight, product of:
                1.369111 = boost
                3.9080403 = idf(docFreq=2324, maxDocs=42596)
                0.014259827 = queryNorm
              0.30531564 = fieldWeight in 6263, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9080403 = idf(docFreq=2324, maxDocs=42596)
                0.078125 = fieldNorm(doc=6263)
          0.16595675 = weight(abstract_txt:exhaustivity in 6263) [ClassicSimilarity], result of:
            0.16595675 = score(doc=6263,freq=2.0), product of:
              0.17795679 = queryWeight, product of:
                1.4785123 = boost
                8.4406395 = idf(docFreq=24, maxDocs=42596)
                0.014259827 = queryNorm
              0.9325677 = fieldWeight in 6263, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.4406395 = idf(docFreq=24, maxDocs=42596)
                0.078125 = fieldNorm(doc=6263)
          0.06745212 = weight(abstract_txt:representation in 6263) [ClassicSimilarity], result of:
            0.06745212 = score(doc=6263,freq=2.0), product of:
              0.123024516 = queryWeight, product of:
                1.7385153 = boost
                4.9624815 = idf(docFreq=809, maxDocs=42596)
                0.014259827 = queryNorm
              0.5482819 = fieldWeight in 6263, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.9624815 = idf(docFreq=809, maxDocs=42596)
                0.078125 = fieldNorm(doc=6263)
          0.08276691 = weight(abstract_txt:performance in 6263) [ClassicSimilarity], result of:
            0.08276691 = score(doc=6263,freq=2.0), product of:
              0.16140968 = queryWeight, product of:
                2.438895 = boost
                4.6411138 = idf(docFreq=1116, maxDocs=42596)
                0.014259827 = queryNorm
              0.5127754 = fieldWeight in 6263, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6411138 = idf(docFreq=1116, maxDocs=42596)
                0.078125 = fieldNorm(doc=6263)
          0.26075304 = weight(abstract_txt:exhaustive in 6263) [ClassicSimilarity], result of:
            0.26075304 = score(doc=6263,freq=2.0), product of:
              0.30302668 = queryWeight, product of:
                2.7284946 = boost
                7.788315 = idf(docFreq=47, maxDocs=42596)
                0.014259827 = queryNorm
              0.8604953 = fieldWeight in 6263, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.788315 = idf(docFreq=47, maxDocs=42596)
                0.078125 = fieldNorm(doc=6263)
          0.12825094 = weight(abstract_txt:representations in 6263) [ClassicSimilarity], result of:
            0.12825094 = score(doc=6263,freq=1.0), product of:
              0.2723174 = queryWeight, product of:
                3.16786 = boost
                6.0283036 = idf(docFreq=278, maxDocs=42596)
                0.014259827 = queryNorm
              0.4709612 = fieldWeight in 6263, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0283036 = idf(docFreq=278, maxDocs=42596)
                0.078125 = fieldNorm(doc=6263)
          0.17526516 = weight(abstract_txt:optimal in 6263) [ClassicSimilarity], result of:
            0.17526516 = score(doc=6263,freq=1.0), product of:
              0.33535033 = queryWeight, product of:
                3.5154235 = boost
                6.6897025 = idf(docFreq=143, maxDocs=42596)
                0.014259827 = queryNorm
              0.522633 = fieldWeight in 6263, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.6897025 = idf(docFreq=143, maxDocs=42596)
                0.078125 = fieldNorm(doc=6263)
        0.36 = coord(9/25)
    
  3. Burgin, R.: ¬The retrieval effectiveness of 5 clustering algorithms as a function of indexing exhaustivity (1995) 0.23
    0.22955856 = sum of:
      0.22955856 = product of:
        0.7173705 = sum of:
          0.06495014 = weight(abstract_txt:link in 3434) [ClassicSimilarity], result of:
            0.06495014 = score(doc=3434,freq=5.0), product of:
              0.08140755 = queryWeight, product of:
                5.7088733 = idf(docFreq=383, maxDocs=42596)
                0.014259827 = queryNorm
              0.7978393 = fieldWeight in 3434, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.7088733 = idf(docFreq=383, maxDocs=42596)
                0.0625 = fieldNorm(doc=3434)
          0.044187557 = weight(abstract_txt:cluster in 3434) [ClassicSimilarity], result of:
            0.044187557 = score(doc=3434,freq=1.0), product of:
              0.10767989 = queryWeight, product of:
                1.1500983 = boost
                6.5657654 = idf(docFreq=162, maxDocs=42596)
                0.014259827 = queryNorm
              0.41036034 = fieldWeight in 3434, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5657654 = idf(docFreq=162, maxDocs=42596)
                0.0625 = fieldNorm(doc=3434)
          0.03430096 = weight(abstract_txt:retrieval in 3434) [ClassicSimilarity], result of:
            0.03430096 = score(doc=3434,freq=7.0), product of:
              0.059903122 = queryWeight, product of:
                1.2131301 = boost
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.014259827 = queryNorm
              0.5726072 = fieldWeight in 3434, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.0625 = fieldNorm(doc=3434)
          0.13276541 = weight(abstract_txt:exhaustivity in 3434) [ClassicSimilarity], result of:
            0.13276541 = score(doc=3434,freq=2.0), product of:
              0.17795679 = queryWeight, product of:
                1.4785123 = boost
                8.4406395 = idf(docFreq=24, maxDocs=42596)
                0.014259827 = queryNorm
              0.7460542 = fieldWeight in 3434, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.4406395 = idf(docFreq=24, maxDocs=42596)
                0.0625 = fieldNorm(doc=3434)
          0.08366834 = weight(abstract_txt:effectiveness in 3434) [ClassicSimilarity], result of:
            0.08366834 = score(doc=3434,freq=4.0), product of:
              0.13080733 = queryWeight, product of:
                1.7926632 = boost
                5.1170435 = idf(docFreq=693, maxDocs=42596)
                0.014259827 = queryNorm
              0.63963044 = fieldWeight in 3434, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.1170435 = idf(docFreq=693, maxDocs=42596)
                0.0625 = fieldNorm(doc=3434)
          0.114685215 = weight(abstract_txt:performance in 3434) [ClassicSimilarity], result of:
            0.114685215 = score(doc=3434,freq=6.0), product of:
              0.16140968 = queryWeight, product of:
                2.438895 = boost
                4.6411138 = idf(docFreq=1116, maxDocs=42596)
                0.014259827 = queryNorm
              0.71052253 = fieldWeight in 3434, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.6411138 = idf(docFreq=1116, maxDocs=42596)
                0.0625 = fieldNorm(doc=3434)
          0.10260075 = weight(abstract_txt:representations in 3434) [ClassicSimilarity], result of:
            0.10260075 = score(doc=3434,freq=1.0), product of:
              0.2723174 = queryWeight, product of:
                3.16786 = boost
                6.0283036 = idf(docFreq=278, maxDocs=42596)
                0.014259827 = queryNorm
              0.37676898 = fieldWeight in 3434, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0283036 = idf(docFreq=278, maxDocs=42596)
                0.0625 = fieldNorm(doc=3434)
          0.14021212 = weight(abstract_txt:optimal in 3434) [ClassicSimilarity], result of:
            0.14021212 = score(doc=3434,freq=1.0), product of:
              0.33535033 = queryWeight, product of:
                3.5154235 = boost
                6.6897025 = idf(docFreq=143, maxDocs=42596)
                0.014259827 = queryNorm
              0.4181064 = fieldWeight in 3434, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.6897025 = idf(docFreq=143, maxDocs=42596)
                0.0625 = fieldNorm(doc=3434)
        0.32 = coord(8/25)
    
  4. Smeaton, A.F.; Morrissey, P.J.: Experiments on the automatic construction of hypertext from texts (1995) 0.19
    0.19162776 = sum of:
      0.19162776 = product of:
        0.6843848 = sum of:
          0.036308233 = weight(abstract_txt:link in 323) [ClassicSimilarity], result of:
            0.036308233 = score(doc=323,freq=1.0), product of:
              0.08140755 = queryWeight, product of:
                5.7088733 = idf(docFreq=383, maxDocs=42596)
                0.014259827 = queryNorm
              0.44600573 = fieldWeight in 323, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7088733 = idf(docFreq=383, maxDocs=42596)
                0.078125 = fieldNorm(doc=323)
          0.0663946 = weight(abstract_txt:similarity in 323) [ClassicSimilarity], result of:
            0.0663946 = score(doc=323,freq=3.0), product of:
              0.084406525 = queryWeight, product of:
                1.018253 = boost
                5.813077 = idf(docFreq=345, maxDocs=42596)
                0.014259827 = queryNorm
              0.786605 = fieldWeight in 323, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.813077 = idf(docFreq=345, maxDocs=42596)
                0.078125 = fieldNorm(doc=323)
          0.055289455 = weight(abstract_txt:values in 323) [ClassicSimilarity], result of:
            0.055289455 = score(doc=323,freq=2.0), product of:
              0.08552232 = queryWeight, product of:
                1.0249611 = boost
                5.851373 = idf(docFreq=332, maxDocs=42596)
                0.014259827 = queryNorm
              0.6464915 = fieldWeight in 323, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.851373 = idf(docFreq=332, maxDocs=42596)
                0.078125 = fieldNorm(doc=323)
          0.04041581 = weight(abstract_txt:descriptions in 323) [ClassicSimilarity], result of:
            0.04041581 = score(doc=323,freq=1.0), product of:
              0.08743704 = queryWeight, product of:
                1.0363714 = boost
                5.9165125 = idf(docFreq=311, maxDocs=42596)
                0.014259827 = queryNorm
              0.46222752 = fieldWeight in 323, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9165125 = idf(docFreq=311, maxDocs=42596)
                0.078125 = fieldNorm(doc=323)
          0.016205681 = weight(abstract_txt:retrieval in 323) [ClassicSimilarity], result of:
            0.016205681 = score(doc=323,freq=1.0), product of:
              0.059903122 = queryWeight, product of:
                1.2131301 = boost
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.014259827 = queryNorm
              0.2705315 = fieldWeight in 323, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.078125 = fieldNorm(doc=323)
          0.06682171 = weight(abstract_txt:composed in 323) [ClassicSimilarity], result of:
            0.06682171 = score(doc=323,freq=1.0), product of:
              0.122256786 = queryWeight, product of:
                1.2254741 = boost
                6.9960766 = idf(docFreq=105, maxDocs=42596)
                0.014259827 = queryNorm
              0.5465685 = fieldWeight in 323, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9960766 = idf(docFreq=105, maxDocs=42596)
                0.078125 = fieldNorm(doc=323)
          0.40294936 = weight(abstract_txt:composite in 323) [ClassicSimilarity], result of:
            0.40294936 = score(doc=323,freq=1.0), product of:
              0.6429565 = queryWeight, product of:
                5.6206746 = boost
                8.02193 = idf(docFreq=37, maxDocs=42596)
                0.014259827 = queryNorm
              0.6267133 = fieldWeight in 323, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.02193 = idf(docFreq=37, maxDocs=42596)
                0.078125 = fieldNorm(doc=323)
        0.28 = coord(7/25)
    
  5. Tsai, C.-F.; Hu, Y.-H.; Chen, Z.-Y.: Factors affecting rocchio-based pseudorelevance feedback in image retrieval (2015) 0.13
    0.13392322 = sum of:
      0.13392322 = product of:
        0.4782972 = sum of:
          0.030666351 = weight(abstract_txt:similarity in 2608) [ClassicSimilarity], result of:
            0.030666351 = score(doc=2608,freq=1.0), product of:
              0.084406525 = queryWeight, product of:
                1.018253 = boost
                5.813077 = idf(docFreq=345, maxDocs=42596)
                0.014259827 = queryNorm
              0.3633173 = fieldWeight in 2608, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.813077 = idf(docFreq=345, maxDocs=42596)
                0.0625 = fieldNorm(doc=2608)
          0.022455249 = weight(abstract_txt:retrieval in 2608) [ClassicSimilarity], result of:
            0.022455249 = score(doc=2608,freq=3.0), product of:
              0.059903122 = queryWeight, product of:
                1.2131301 = boost
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.014259827 = queryNorm
              0.37485942 = fieldWeight in 2608, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.0625 = fieldNorm(doc=2608)
          0.018635925 = weight(abstract_txt:subject in 2608) [ClassicSimilarity], result of:
            0.018635925 = score(doc=2608,freq=1.0), product of:
              0.07629778 = queryWeight, product of:
                1.369111 = boost
                3.9080403 = idf(docFreq=2324, maxDocs=42596)
                0.014259827 = queryNorm
              0.24425252 = fieldWeight in 2608, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9080403 = idf(docFreq=2324, maxDocs=42596)
                0.0625 = fieldNorm(doc=2608)
          0.085320935 = weight(abstract_txt:representation in 2608) [ClassicSimilarity], result of:
            0.085320935 = score(doc=2608,freq=5.0), product of:
              0.123024516 = queryWeight, product of:
                1.7385153 = boost
                4.9624815 = idf(docFreq=809, maxDocs=42596)
                0.014259827 = queryNorm
              0.6935279 = fieldWeight in 2608, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.9624815 = idf(docFreq=809, maxDocs=42596)
                0.0625 = fieldNorm(doc=2608)
          0.04183417 = weight(abstract_txt:effectiveness in 2608) [ClassicSimilarity], result of:
            0.04183417 = score(doc=2608,freq=1.0), product of:
              0.13080733 = queryWeight, product of:
                1.7926632 = boost
                5.1170435 = idf(docFreq=693, maxDocs=42596)
                0.014259827 = queryNorm
              0.31981522 = fieldWeight in 2608, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.1170435 = idf(docFreq=693, maxDocs=42596)
                0.0625 = fieldNorm(doc=2608)
          0.08109469 = weight(abstract_txt:performance in 2608) [ClassicSimilarity], result of:
            0.08109469 = score(doc=2608,freq=3.0), product of:
              0.16140968 = queryWeight, product of:
                2.438895 = boost
                4.6411138 = idf(docFreq=1116, maxDocs=42596)
                0.014259827 = queryNorm
              0.5024153 = fieldWeight in 2608, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.6411138 = idf(docFreq=1116, maxDocs=42596)
                0.0625 = fieldNorm(doc=2608)
          0.19828987 = weight(abstract_txt:optimal in 2608) [ClassicSimilarity], result of:
            0.19828987 = score(doc=2608,freq=2.0), product of:
              0.33535033 = queryWeight, product of:
                3.5154235 = boost
                6.6897025 = idf(docFreq=143, maxDocs=42596)
                0.014259827 = queryNorm
              0.5912917 = fieldWeight in 2608, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.6897025 = idf(docFreq=143, maxDocs=42596)
                0.0625 = fieldNorm(doc=2608)
        0.28 = coord(7/25)