Document (#21268)

Author
Egghe, L.
Rousseau, R.
Title
¬A theoretical study of recall and precision using a topological approach to information retrieval
Source
Information processing and management. 34(1998) nos.2/3, S.191-218
Year
1998
Abstract
Topologies for information retrieval systems are generated by certain subsets, called retrievals. Shows how recall and precision can be expressed using only retrievals. Investigates different types of retrieval systems: both threshold systems and close match systems and both optimal and non optimal retrieval. Highlights the relation with the hypergeometric and some non-standard distributions

Similar documents (author)

  1. Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996) 5.37
    5.36736 = sum of:
      5.36736 = sum of:
        2.68368 = weight(author_txt:rousseau in 728) [ClassicSimilarity], result of:
          2.68368 = score(doc=728,freq=1.0), product of:
            0.70710677 = queryWeight, product of:
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.09315566 = queryNorm
            3.795297 = fieldWeight in 728, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.5 = fieldNorm(doc=728)
        2.68368 = weight(author_txt:egghe in 728) [ClassicSimilarity], result of:
          2.68368 = score(doc=728,freq=1.0), product of:
            0.70710677 = queryWeight, product of:
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.09315566 = queryNorm
            3.795297 = fieldWeight in 728, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.5 = fieldNorm(doc=728)
    
  2. Egghe, L.; Rousseau, R.: Duality in information retrieval and the hypegeometric distribution (1997) 5.37
    5.36736 = sum of:
      5.36736 = sum of:
        2.68368 = weight(author_txt:rousseau in 647) [ClassicSimilarity], result of:
          2.68368 = score(doc=647,freq=1.0), product of:
            0.70710677 = queryWeight, product of:
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.09315566 = queryNorm
            3.795297 = fieldWeight in 647, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.5 = fieldNorm(doc=647)
        2.68368 = weight(author_txt:egghe in 647) [ClassicSimilarity], result of:
          2.68368 = score(doc=647,freq=1.0), product of:
            0.70710677 = queryWeight, product of:
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.09315566 = queryNorm
            3.795297 = fieldWeight in 647, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.5 = fieldNorm(doc=647)
    
  3. Egghe, L.; Rousseau, R.: Topological aspects of information retrieval (1998) 5.37
    5.36736 = sum of:
      5.36736 = sum of:
        2.68368 = weight(author_txt:rousseau in 3157) [ClassicSimilarity], result of:
          2.68368 = score(doc=3157,freq=1.0), product of:
            0.70710677 = queryWeight, product of:
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.09315566 = queryNorm
            3.795297 = fieldWeight in 3157, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.5 = fieldNorm(doc=3157)
        2.68368 = weight(author_txt:egghe in 3157) [ClassicSimilarity], result of:
          2.68368 = score(doc=3157,freq=1.0), product of:
            0.70710677 = queryWeight, product of:
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.09315566 = queryNorm
            3.795297 = fieldWeight in 3157, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.5 = fieldNorm(doc=3157)
    
  4. Egghe, L.; Rousseau, R.: ¬The influence of publication delays on the observed aging distribution of scientific literature (2000) 5.37
    5.36736 = sum of:
      5.36736 = sum of:
        2.68368 = weight(author_txt:rousseau in 5385) [ClassicSimilarity], result of:
          2.68368 = score(doc=5385,freq=1.0), product of:
            0.70710677 = queryWeight, product of:
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.09315566 = queryNorm
            3.795297 = fieldWeight in 5385, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.5 = fieldNorm(doc=5385)
        2.68368 = weight(author_txt:egghe in 5385) [ClassicSimilarity], result of:
          2.68368 = score(doc=5385,freq=1.0), product of:
            0.70710677 = queryWeight, product of:
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.09315566 = queryNorm
            3.795297 = fieldWeight in 5385, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.5 = fieldNorm(doc=5385)
    
  5. Egghe, L.; Rousseau, R.: Aging, obsolescence, impact, growth, and utilization : definitions and relations (2000) 5.37
    5.36736 = sum of:
      5.36736 = sum of:
        2.68368 = weight(author_txt:rousseau in 6154) [ClassicSimilarity], result of:
          2.68368 = score(doc=6154,freq=1.0), product of:
            0.70710677 = queryWeight, product of:
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.09315566 = queryNorm
            3.795297 = fieldWeight in 6154, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.5 = fieldNorm(doc=6154)
        2.68368 = weight(author_txt:egghe in 6154) [ClassicSimilarity], result of:
          2.68368 = score(doc=6154,freq=1.0), product of:
            0.70710677 = queryWeight, product of:
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.09315566 = queryNorm
            3.795297 = fieldWeight in 6154, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.590594 = idf(docFreq=60, maxDocs=44421)
              0.5 = fieldNorm(doc=6154)
    

Similar documents (content)

  1. Taghva, K.; Borsack, J.; Condit, A.: Evaluation of model-based retrieval effectiveness with OCR text (1996) 0.23
    0.23135059 = sum of:
      0.23135059 = product of:
        0.6426405 = sum of:
          0.009734278 = weight(abstract_txt:information in 4553) [ClassicSimilarity], result of:
            0.009734278 = score(doc=4553,freq=1.0), product of:
              0.042925425 = queryWeight, product of:
                1.0002438 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.017741524 = queryNorm
              0.22677183 = fieldWeight in 4553, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.09375 = fieldNorm(doc=4553)
          0.045733493 = weight(abstract_txt:shows in 4553) [ClassicSimilarity], result of:
            0.045733493 = score(doc=4553,freq=1.0), product of:
              0.095570765 = queryWeight, product of:
                1.055349 = boost
                5.104322 = idf(docFreq=732, maxDocs=44421)
                0.017741524 = queryNorm
              0.47853017 = fieldWeight in 4553, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.104322 = idf(docFreq=732, maxDocs=44421)
                0.09375 = fieldNorm(doc=4553)
          0.08131645 = weight(abstract_txt:generated in 4553) [ClassicSimilarity], result of:
            0.08131645 = score(doc=4553,freq=2.0), product of:
              0.11132971 = queryWeight, product of:
                1.1390404 = boost
                5.509105 = idf(docFreq=488, maxDocs=44421)
                0.017741524 = queryNorm
              0.73041105 = fieldWeight in 4553, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.509105 = idf(docFreq=488, maxDocs=44421)
                0.09375 = fieldNorm(doc=4553)
          0.02841186 = weight(abstract_txt:using in 4553) [ClassicSimilarity], result of:
            0.02841186 = score(doc=4553,freq=1.0), product of:
              0.087668836 = queryWeight, product of:
                1.4294573 = boost
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.017741524 = queryNorm
              0.32408163 = fieldWeight in 4553, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.09375 = fieldNorm(doc=4553)
          0.037919924 = weight(abstract_txt:both in 4553) [ClassicSimilarity], result of:
            0.037919924 = score(doc=4553,freq=1.0), product of:
              0.106273204 = queryWeight, product of:
                1.5738395 = boost
                3.8060317 = idf(docFreq=2684, maxDocs=44421)
                0.017741524 = queryNorm
              0.35681546 = fieldWeight in 4553, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.8060317 = idf(docFreq=2684, maxDocs=44421)
                0.09375 = fieldNorm(doc=4553)
          0.11590411 = weight(abstract_txt:precision in 4553) [ClassicSimilarity], result of:
            0.11590411 = score(doc=4553,freq=1.0), product of:
              0.22382642 = queryWeight, product of:
                2.2840428 = boost
                5.5235233 = idf(docFreq=481, maxDocs=44421)
                0.017741524 = queryNorm
              0.5178303 = fieldWeight in 4553, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5235233 = idf(docFreq=481, maxDocs=44421)
                0.09375 = fieldNorm(doc=4553)
          0.13080992 = weight(abstract_txt:recall in 4553) [ClassicSimilarity], result of:
            0.13080992 = score(doc=4553,freq=1.0), product of:
              0.24262705 = queryWeight, product of:
                2.3780346 = boost
                5.750825 = idf(docFreq=383, maxDocs=44421)
                0.017741524 = queryNorm
              0.53913987 = fieldWeight in 4553, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.750825 = idf(docFreq=383, maxDocs=44421)
                0.09375 = fieldNorm(doc=4553)
          0.07721599 = weight(abstract_txt:systems in 4553) [ClassicSimilarity], result of:
            0.07721599 = score(doc=4553,freq=2.0), product of:
              0.1707328 = queryWeight, product of:
                2.8211231 = boost
                3.411175 = idf(docFreq=3984, maxDocs=44421)
                0.017741524 = queryNorm
              0.4522622 = fieldWeight in 4553, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.411175 = idf(docFreq=3984, maxDocs=44421)
                0.09375 = fieldNorm(doc=4553)
          0.11559444 = weight(abstract_txt:retrieval in 4553) [ClassicSimilarity], result of:
            0.11559444 = score(doc=4553,freq=4.0), product of:
              0.17733458 = queryWeight, product of:
                2.8751485 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.017741524 = queryNorm
              0.6518438 = fieldWeight in 4553, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.09375 = fieldNorm(doc=4553)
        0.36 = coord(9/25)
    
  2. Everett, D.M.; Cater, S.C.: Topology of document retrieval systems (1992) 0.23
    0.22968177 = sum of:
      0.22968177 = product of:
        1.1484089 = sum of:
          0.011356656 = weight(abstract_txt:information in 3308) [ClassicSimilarity], result of:
            0.011356656 = score(doc=3308,freq=1.0), product of:
              0.042925425 = queryWeight, product of:
                1.0002438 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.017741524 = queryNorm
              0.26456714 = fieldWeight in 3308, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.109375 = fieldNorm(doc=3308)
          0.30671448 = weight(abstract_txt:topological in 3308) [ClassicSimilarity], result of:
            0.30671448 = score(doc=3308,freq=2.0), product of:
              0.24341676 = queryWeight, product of:
                1.6842587 = boost
                8.146119 = idf(docFreq=34, maxDocs=44421)
                0.017741524 = queryNorm
              1.2600385 = fieldWeight in 3308, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.146119 = idf(docFreq=34, maxDocs=44421)
                0.109375 = fieldNorm(doc=3308)
          0.5521596 = weight(abstract_txt:topologies in 3308) [ClassicSimilarity], result of:
            0.5521596 = score(doc=3308,freq=2.0), product of:
              0.3602224 = queryWeight, product of:
                2.0488913 = boost
                9.909708 = idf(docFreq=5, maxDocs=44421)
                0.017741524 = queryNorm
              1.5328298 = fieldWeight in 3308, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.909708 = idf(docFreq=5, maxDocs=44421)
                0.109375 = fieldNorm(doc=3308)
          0.12739988 = weight(abstract_txt:systems in 3308) [ClassicSimilarity], result of:
            0.12739988 = score(doc=3308,freq=4.0), product of:
              0.1707328 = queryWeight, product of:
                2.8211231 = boost
                3.411175 = idf(docFreq=3984, maxDocs=44421)
                0.017741524 = queryNorm
              0.74619454 = fieldWeight in 3308, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.411175 = idf(docFreq=3984, maxDocs=44421)
                0.109375 = fieldNorm(doc=3308)
          0.15077826 = weight(abstract_txt:retrieval in 3308) [ClassicSimilarity], result of:
            0.15077826 = score(doc=3308,freq=5.0), product of:
              0.17733458 = queryWeight, product of:
                2.8751485 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.017741524 = queryNorm
              0.85024744 = fieldWeight in 3308, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.109375 = fieldNorm(doc=3308)
        0.2 = coord(5/25)
    
  3. Cox, K.: ¬An experiment to test the utility of repeating phrases for information retrieval systems (1994) 0.20
    0.19574139 = sum of:
      0.19574139 = product of:
        0.61169183 = sum of:
          0.011356656 = weight(abstract_txt:information in 895) [ClassicSimilarity], result of:
            0.011356656 = score(doc=895,freq=1.0), product of:
              0.042925425 = queryWeight, product of:
                1.0002438 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.017741524 = queryNorm
              0.26456714 = fieldWeight in 895, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.109375 = fieldNorm(doc=895)
          0.053355746 = weight(abstract_txt:shows in 895) [ClassicSimilarity], result of:
            0.053355746 = score(doc=895,freq=1.0), product of:
              0.095570765 = queryWeight, product of:
                1.055349 = boost
                5.104322 = idf(docFreq=732, maxDocs=44421)
                0.017741524 = queryNorm
              0.55828524 = fieldWeight in 895, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.104322 = idf(docFreq=732, maxDocs=44421)
                0.109375 = fieldNorm(doc=895)
          0.0948692 = weight(abstract_txt:generated in 895) [ClassicSimilarity], result of:
            0.0948692 = score(doc=895,freq=2.0), product of:
              0.11132971 = queryWeight, product of:
                1.1390404 = boost
                5.509105 = idf(docFreq=488, maxDocs=44421)
                0.017741524 = queryNorm
              0.85214627 = fieldWeight in 895, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.509105 = idf(docFreq=488, maxDocs=44421)
                0.109375 = fieldNorm(doc=895)
          0.03314717 = weight(abstract_txt:using in 895) [ClassicSimilarity], result of:
            0.03314717 = score(doc=895,freq=1.0), product of:
              0.087668836 = queryWeight, product of:
                1.4294573 = boost
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.017741524 = queryNorm
              0.37809524 = fieldWeight in 895, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.109375 = fieldNorm(doc=895)
          0.13522147 = weight(abstract_txt:precision in 895) [ClassicSimilarity], result of:
            0.13522147 = score(doc=895,freq=1.0), product of:
              0.22382642 = queryWeight, product of:
                2.2840428 = boost
                5.5235233 = idf(docFreq=481, maxDocs=44421)
                0.017741524 = queryNorm
              0.6041354 = fieldWeight in 895, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5235233 = idf(docFreq=481, maxDocs=44421)
                0.109375 = fieldNorm(doc=895)
          0.15261157 = weight(abstract_txt:recall in 895) [ClassicSimilarity], result of:
            0.15261157 = score(doc=895,freq=1.0), product of:
              0.24262705 = queryWeight, product of:
                2.3780346 = boost
                5.750825 = idf(docFreq=383, maxDocs=44421)
                0.017741524 = queryNorm
              0.6289965 = fieldWeight in 895, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.750825 = idf(docFreq=383, maxDocs=44421)
                0.109375 = fieldNorm(doc=895)
          0.06369994 = weight(abstract_txt:systems in 895) [ClassicSimilarity], result of:
            0.06369994 = score(doc=895,freq=1.0), product of:
              0.1707328 = queryWeight, product of:
                2.8211231 = boost
                3.411175 = idf(docFreq=3984, maxDocs=44421)
                0.017741524 = queryNorm
              0.37309727 = fieldWeight in 895, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.411175 = idf(docFreq=3984, maxDocs=44421)
                0.109375 = fieldNorm(doc=895)
          0.06743009 = weight(abstract_txt:retrieval in 895) [ClassicSimilarity], result of:
            0.06743009 = score(doc=895,freq=1.0), product of:
              0.17733458 = queryWeight, product of:
                2.8751485 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.017741524 = queryNorm
              0.3802422 = fieldWeight in 895, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.109375 = fieldNorm(doc=895)
        0.32 = coord(8/25)
    
  4. Egghe, L.; Rousseau, R.: Topological aspects of information retrieval (1998) 0.19
    0.18584079 = sum of:
      0.18584079 = product of:
        0.9292039 = sum of:
          0.008111898 = weight(abstract_txt:information in 3157) [ClassicSimilarity], result of:
            0.008111898 = score(doc=3157,freq=1.0), product of:
              0.042925425 = queryWeight, product of:
                1.0002438 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.017741524 = queryNorm
              0.18897653 = fieldWeight in 3157, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.078125 = fieldNorm(doc=3157)
          0.04791618 = weight(abstract_txt:generated in 3157) [ClassicSimilarity], result of:
            0.04791618 = score(doc=3157,freq=1.0), product of:
              0.11132971 = queryWeight, product of:
                1.1390404 = boost
                5.509105 = idf(docFreq=488, maxDocs=44421)
                0.017741524 = queryNorm
              0.43039885 = fieldWeight in 3157, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.509105 = idf(docFreq=488, maxDocs=44421)
                0.078125 = fieldNorm(doc=3157)
          0.21908177 = weight(abstract_txt:topological in 3157) [ClassicSimilarity], result of:
            0.21908177 = score(doc=3157,freq=2.0), product of:
              0.24341676 = queryWeight, product of:
                1.6842587 = boost
                8.146119 = idf(docFreq=34, maxDocs=44421)
                0.017741524 = queryNorm
              0.9000275 = fieldWeight in 3157, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.146119 = idf(docFreq=34, maxDocs=44421)
                0.078125 = fieldNorm(doc=3157)
          0.5577654 = weight(abstract_txt:topologies in 3157) [ClassicSimilarity], result of:
            0.5577654 = score(doc=3157,freq=4.0), product of:
              0.3602224 = queryWeight, product of:
                2.0488913 = boost
                9.909708 = idf(docFreq=5, maxDocs=44421)
                0.017741524 = queryNorm
              1.5483918 = fieldWeight in 3157, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                9.909708 = idf(docFreq=5, maxDocs=44421)
                0.078125 = fieldNorm(doc=3157)
          0.0963287 = weight(abstract_txt:retrieval in 3157) [ClassicSimilarity], result of:
            0.0963287 = score(doc=3157,freq=4.0), product of:
              0.17733458 = queryWeight, product of:
                2.8751485 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.017741524 = queryNorm
              0.5432031 = fieldWeight in 3157, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.078125 = fieldNorm(doc=3157)
        0.2 = coord(5/25)
    
  5. Losee, R.M.: Upper bounds for retrieval performance and their user measuring performance and generating optimal queries : can it get any better than this? (1994) 0.17
    0.17498872 = sum of:
      0.17498872 = product of:
        0.72911966 = sum of:
          0.07471144 = weight(abstract_txt:close in 7417) [ClassicSimilarity], result of:
            0.07471144 = score(doc=7417,freq=1.0), product of:
              0.14969744 = queryWeight, product of:
                1.3208113 = boost
                6.388262 = idf(docFreq=202, maxDocs=44421)
                0.017741524 = queryNorm
              0.49908295 = fieldWeight in 7417, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.388262 = idf(docFreq=202, maxDocs=44421)
                0.078125 = fieldNorm(doc=7417)
          0.0334837 = weight(abstract_txt:using in 7417) [ClassicSimilarity], result of:
            0.0334837 = score(doc=7417,freq=2.0), product of:
              0.087668836 = queryWeight, product of:
                1.4294573 = boost
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.017741524 = queryNorm
              0.38193387 = fieldWeight in 7417, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.078125 = fieldNorm(doc=7417)
          0.09658676 = weight(abstract_txt:precision in 7417) [ClassicSimilarity], result of:
            0.09658676 = score(doc=7417,freq=1.0), product of:
              0.22382642 = queryWeight, product of:
                2.2840428 = boost
                5.5235233 = idf(docFreq=481, maxDocs=44421)
                0.017741524 = queryNorm
              0.43152526 = fieldWeight in 7417, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5235233 = idf(docFreq=481, maxDocs=44421)
                0.078125 = fieldNorm(doc=7417)
          0.10900825 = weight(abstract_txt:recall in 7417) [ClassicSimilarity], result of:
            0.10900825 = score(doc=7417,freq=1.0), product of:
              0.24262705 = queryWeight, product of:
                2.3780346 = boost
                5.750825 = idf(docFreq=383, maxDocs=44421)
                0.017741524 = queryNorm
              0.44928318 = fieldWeight in 7417, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.750825 = idf(docFreq=383, maxDocs=44421)
                0.078125 = fieldNorm(doc=7417)
          0.29735142 = weight(abstract_txt:optimal in 7417) [ClassicSimilarity], result of:
            0.29735142 = score(doc=7417,freq=3.0), product of:
              0.32842728 = queryWeight, product of:
                2.766739 = boost
                6.690832 = idf(docFreq=149, maxDocs=44421)
                0.017741524 = queryNorm
              0.9053798 = fieldWeight in 7417, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.690832 = idf(docFreq=149, maxDocs=44421)
                0.078125 = fieldNorm(doc=7417)
          0.11797809 = weight(abstract_txt:retrieval in 7417) [ClassicSimilarity], result of:
            0.11797809 = score(doc=7417,freq=6.0), product of:
              0.17733458 = queryWeight, product of:
                2.8751485 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.017741524 = queryNorm
              0.6652853 = fieldWeight in 7417, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.078125 = fieldNorm(doc=7417)
        0.24 = coord(6/25)