Document (#40600)

Author

Comins, J.A.
Leydesdorff, L.

Title

Identification of long-term concept-symbols among citations : do common intellectual histories structure citation behavior?

Source

Journal of the Association for Information Science and Technology. 68(2017) no.5, S.1224-1233

Year

2017

Abstract

"Citation classics" are not only highly cited, but also cited during several decades. We explore whether the peaks in the spectrograms generated by Reference Publication Years Spectroscopy (RPYS) indicate such long-term impact by comparing across RPYS for subsequent time intervals. Multi-RPYS enables us to distinguish between short-term citation peaks at the research front that decay within 10 years versus historically constitutive (long-term) citations that function as concept symbols. Using these constitutive citations, one is able to cluster document sets (e.g., journals) in terms of intellectually shared histories. We test this premise by clustering 40 journals in the Web of Science Category of Information and Library Science using multi-RPYS. It follows that RPYS can not only be used for retrieving roots of sets under study (cited), but also for algorithmic historiography of the citing sets. Significant references are historically rooted symbols among other citations that function as currency.

Content

Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23769/full.

Theme

Informetrie

Similar documents (author)

1. Leydesdorff, L.: ¬The generation of aggregated journal-journal citation maps on the basis of the CD-ROM version of the Science Citation Index (1994) 4.52

   4.5150814 = sum of:
     4.5150814 = weight(author_txt:leydesdorff in 8280) [ClassicSimilarity], result of:
       4.5150814 = fieldWeight in 8280, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.2241306 = idf(docFreq=87, maxDocs=44421)
         0.625 = fieldNorm(doc=8280)
   

2. Leydesdorff, L.: Why words and co-word cannot map the development of the science (1997) 4.52

   4.5150814 = sum of:
     4.5150814 = weight(author_txt:leydesdorff in 1147) [ClassicSimilarity], result of:
       4.5150814 = fieldWeight in 1147, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.2241306 = idf(docFreq=87, maxDocs=44421)
         0.625 = fieldNorm(doc=1147)
   

3. Leydesdorff, L.: Theories of citation? (1999) 4.52

   4.5150814 = sum of:
     4.5150814 = weight(author_txt:leydesdorff in 6130) [ClassicSimilarity], result of:
       4.5150814 = fieldWeight in 6130, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.2241306 = idf(docFreq=87, maxDocs=44421)
         0.625 = fieldNorm(doc=6130)
   

4. Leydesdorff, L.: ¬A sociological theory of communication : the self-organization of the knowledge-based society (2001) 4.52

   4.5150814 = sum of:
     4.5150814 = weight(author_txt:leydesdorff in 1184) [ClassicSimilarity], result of:
       4.5150814 = fieldWeight in 1184, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.2241306 = idf(docFreq=87, maxDocs=44421)
         0.625 = fieldNorm(doc=1184)
   

5. Leydesdorff, L.: Dynamic and evolutionary updates of classificatory schemes in scientific journal structures (2002) 4.52

   4.5150814 = sum of:
     4.5150814 = weight(author_txt:leydesdorff in 2249) [ClassicSimilarity], result of:
       4.5150814 = fieldWeight in 2249, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.2241306 = idf(docFreq=87, maxDocs=44421)
         0.625 = fieldNorm(doc=2249)
   

Similar documents (content)

1. Baumgartner, S.E.; Leydesdorff, L.: Group-based trajectory modeling (GBTM) of citations in scholarly literature : dynamic qualities of "transient" and "sticky knowledge claims" (2014) 0.27

   0.2668883 = sum of:
     0.2668883 = product of:
       0.7413564 = sum of:
         0.03182066 = weight(abstract_txt:only in 2241) [ClassicSimilarity], result of:
           0.03182066 = score(doc=2241,freq=2.0), product of:
             0.08499188 = queryWeight, product of:
               1.0903494 = boost
               4.235812 = idf(docFreq=1746, maxDocs=44421)
               0.018402424 = queryNorm
             0.37439644 = fieldWeight in 2241, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.235812 = idf(docFreq=1746, maxDocs=44421)
               0.0625 = fieldNorm(doc=2241)
         0.09603909 = weight(abstract_txt:decay in 2241) [ClassicSimilarity], result of:
           0.09603909 = score(doc=2241,freq=1.0), product of:
             0.17750204 = queryWeight, product of:
               1.1142013 = boost
               8.656945 = idf(docFreq=20, maxDocs=44421)
               0.018402424 = queryNorm
             0.5410591 = fieldWeight in 2241, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.656945 = idf(docFreq=20, maxDocs=44421)
               0.0625 = fieldNorm(doc=2241)
         0.0386225 = weight(abstract_txt:among in 2241) [ClassicSimilarity], result of:
           0.0386225 = score(doc=2241,freq=2.0), product of:
             0.09670856 = queryWeight, product of:
               1.1630796 = boost
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.018402424 = queryNorm
             0.39937 = fieldWeight in 2241, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.0625 = fieldNorm(doc=2241)
         0.052787744 = weight(abstract_txt:years in 2241) [ClassicSimilarity], result of:
           0.052787744 = score(doc=2241,freq=3.0), product of:
             0.10404702 = queryWeight, product of:
               1.2064013 = boost
               4.686653 = idf(docFreq=1112, maxDocs=44421)
               0.018402424 = queryNorm
             0.5073451 = fieldWeight in 2241, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.686653 = idf(docFreq=1112, maxDocs=44421)
               0.0625 = fieldNorm(doc=2241)
         0.015663967 = weight(abstract_txt:that in 2241) [ClassicSimilarity], result of:
           0.015663967 = score(doc=2241,freq=4.0), product of:
             0.052987386 = queryWeight, product of:
               1.217526 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.018402424 = queryNorm
             0.2956169 = fieldWeight in 2241, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=2241)
         0.07983698 = weight(abstract_txt:journals in 2241) [ClassicSimilarity], result of:
           0.07983698 = score(doc=2241,freq=4.0), product of:
             0.124555826 = queryWeight, product of:
               1.3199546 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.018402424 = queryNorm
             0.64097345 = fieldWeight in 2241, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.0625 = fieldNorm(doc=2241)
         0.1272146 = weight(abstract_txt:citation in 2241) [ClassicSimilarity], result of:
           0.1272146 = score(doc=2241,freq=6.0), product of:
             0.16992317 = queryWeight, product of:
               1.8882041 = boost
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.018402424 = queryNorm
             0.7486595 = fieldWeight in 2241, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.0625 = fieldNorm(doc=2241)
         0.17246144 = weight(abstract_txt:cited in 2241) [ClassicSimilarity], result of:
           0.17246144 = score(doc=2241,freq=4.0), product of:
             0.23826107 = queryWeight, product of:
               2.2358835 = boost
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.018402424 = queryNorm
             0.72383386 = fieldWeight in 2241, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.0625 = fieldNorm(doc=2241)
         0.12690935 = weight(abstract_txt:citations in 2241) [ClassicSimilarity], result of:
           0.12690935 = score(doc=2241,freq=2.0), product of:
             0.26930457 = queryWeight, product of:
               2.7448199 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.018402424 = queryNorm
             0.47124836 = fieldWeight in 2241, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=2241)
       0.36 = coord(9/25)
   

2. Järvelin, K.; Persson, O.: ¬The DCI index : discounted cumulated impact-based research evaluation (2008) 0.21

   0.21246892 = sum of:
     0.21246892 = product of:
       0.6639654 = sum of:
         0.022500603 = weight(abstract_txt:only in 3694) [ClassicSimilarity], result of:
           0.022500603 = score(doc=3694,freq=1.0), product of:
             0.08499188 = queryWeight, product of:
               1.0903494 = boost
               4.235812 = idf(docFreq=1746, maxDocs=44421)
               0.018402424 = queryNorm
             0.26473826 = fieldWeight in 3694, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.235812 = idf(docFreq=1746, maxDocs=44421)
               0.0625 = fieldNorm(doc=3694)
         0.09603909 = weight(abstract_txt:decay in 3694) [ClassicSimilarity], result of:
           0.09603909 = score(doc=3694,freq=1.0), product of:
             0.17750204 = queryWeight, product of:
               1.1142013 = boost
               8.656945 = idf(docFreq=20, maxDocs=44421)
               0.018402424 = queryNorm
             0.5410591 = fieldWeight in 3694, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.656945 = idf(docFreq=20, maxDocs=44421)
               0.0625 = fieldNorm(doc=3694)
         0.0386225 = weight(abstract_txt:among in 3694) [ClassicSimilarity], result of:
           0.0386225 = score(doc=3694,freq=2.0), product of:
             0.09670856 = queryWeight, product of:
               1.1630796 = boost
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.018402424 = queryNorm
             0.39937 = fieldWeight in 3694, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.0625 = fieldNorm(doc=3694)
         0.011076097 = weight(abstract_txt:that in 3694) [ClassicSimilarity], result of:
           0.011076097 = score(doc=3694,freq=2.0), product of:
             0.052987386 = queryWeight, product of:
               1.217526 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.018402424 = queryNorm
             0.20903271 = fieldWeight in 3694, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=3694)
         0.03991849 = weight(abstract_txt:journals in 3694) [ClassicSimilarity], result of:
           0.03991849 = score(doc=3694,freq=1.0), product of:
             0.124555826 = queryWeight, product of:
               1.3199546 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.018402424 = queryNorm
             0.32048672 = fieldWeight in 3694, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.0625 = fieldNorm(doc=3694)
         0.10387027 = weight(abstract_txt:citation in 3694) [ClassicSimilarity], result of:
           0.10387027 = score(doc=3694,freq=4.0), product of:
             0.16992317 = queryWeight, product of:
               1.8882041 = boost
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.018402424 = queryNorm
             0.6112779 = fieldWeight in 3694, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.0625 = fieldNorm(doc=3694)
         0.17246144 = weight(abstract_txt:cited in 3694) [ClassicSimilarity], result of:
           0.17246144 = score(doc=3694,freq=4.0), product of:
             0.23826107 = queryWeight, product of:
               2.2358835 = boost
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.018402424 = queryNorm
             0.72383386 = fieldWeight in 3694, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.0625 = fieldNorm(doc=3694)
         0.17947692 = weight(abstract_txt:citations in 3694) [ClassicSimilarity], result of:
           0.17947692 = score(doc=3694,freq=4.0), product of:
             0.26930457 = queryWeight, product of:
               2.7448199 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.018402424 = queryNorm
             0.66644585 = fieldWeight in 3694, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=3694)
       0.32 = coord(8/25)
   

3. Davis, P.M.; Cohen, S.A.: ¬The effect of the Web on undergraduate citation behavior 1996-1999 (2001) 0.20

   0.19965872 = sum of:
     0.19965872 = product of:
       0.7130669 = sum of:
         0.039775822 = weight(abstract_txt:only in 6768) [ClassicSimilarity], result of:
           0.039775822 = score(doc=6768,freq=2.0), product of:
             0.08499188 = queryWeight, product of:
               1.0903494 = boost
               4.235812 = idf(docFreq=1746, maxDocs=44421)
               0.018402424 = queryNorm
             0.46799555 = fieldWeight in 6768, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.235812 = idf(docFreq=1746, maxDocs=44421)
               0.078125 = fieldNorm(doc=6768)
         0.009789979 = weight(abstract_txt:that in 6768) [ClassicSimilarity], result of:
           0.009789979 = score(doc=6768,freq=1.0), product of:
             0.052987386 = queryWeight, product of:
               1.217526 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.018402424 = queryNorm
             0.18476056 = fieldWeight in 6768, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.078125 = fieldNorm(doc=6768)
         0.06491892 = weight(abstract_txt:citation in 6768) [ClassicSimilarity], result of:
           0.06491892 = score(doc=6768,freq=1.0), product of:
             0.16992317 = queryWeight, product of:
               1.8882041 = boost
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.018402424 = queryNorm
             0.38204867 = fieldWeight in 6768, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.078125 = fieldNorm(doc=6768)
         0.07994068 = weight(abstract_txt:long in 6768) [ClassicSimilarity], result of:
           0.07994068 = score(doc=6768,freq=1.0), product of:
             0.19521669 = queryWeight, product of:
               2.0238628 = boost
               5.2415633 = idf(docFreq=638, maxDocs=44421)
               0.018402424 = queryNorm
             0.40949714 = fieldWeight in 6768, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2415633 = idf(docFreq=638, maxDocs=44421)
               0.078125 = fieldNorm(doc=6768)
         0.15243581 = weight(abstract_txt:cited in 6768) [ClassicSimilarity], result of:
           0.15243581 = score(doc=6768,freq=2.0), product of:
             0.23826107 = queryWeight, product of:
               2.2358835 = boost
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.018402424 = queryNorm
             0.6397848 = fieldWeight in 6768, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.078125 = fieldNorm(doc=6768)
         0.11537903 = weight(abstract_txt:term in 6768) [ClassicSimilarity], result of:
           0.11537903 = score(doc=6768,freq=2.0), product of:
             0.21780069 = queryWeight, product of:
               2.4684346 = boost
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.018402424 = queryNorm
             0.52974594 = fieldWeight in 6768, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.078125 = fieldNorm(doc=6768)
         0.25082663 = weight(abstract_txt:citations in 6768) [ClassicSimilarity], result of:
           0.25082663 = score(doc=6768,freq=5.0), product of:
             0.26930457 = queryWeight, product of:
               2.7448199 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.018402424 = queryNorm
             0.9313864 = fieldWeight in 6768, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.078125 = fieldNorm(doc=6768)
       0.28 = coord(7/25)
   

4. Larivière, V.; Lozano, G.A.; Gingras, Y.: Are elite journals declining? (2014) 0.19

   0.18629959 = sum of:
     0.18629959 = product of:
       0.5821862 = sum of:
         0.02731023 = weight(abstract_txt:among in 2228) [ClassicSimilarity], result of:
           0.02731023 = score(doc=2228,freq=1.0), product of:
             0.09670856 = queryWeight, product of:
               1.1630796 = boost
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.018402424 = queryNorm
             0.28239724 = fieldWeight in 2228, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.518356 = idf(docFreq=1316, maxDocs=44421)
               0.0625 = fieldNorm(doc=2228)
         0.060954038 = weight(abstract_txt:years in 2228) [ClassicSimilarity], result of:
           0.060954038 = score(doc=2228,freq=4.0), product of:
             0.10404702 = queryWeight, product of:
               1.2064013 = boost
               4.686653 = idf(docFreq=1112, maxDocs=44421)
               0.018402424 = queryNorm
             0.58583164 = fieldWeight in 2228, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.686653 = idf(docFreq=1112, maxDocs=44421)
               0.0625 = fieldNorm(doc=2228)
         0.019184364 = weight(abstract_txt:that in 2228) [ClassicSimilarity], result of:
           0.019184364 = score(doc=2228,freq=6.0), product of:
             0.052987386 = queryWeight, product of:
               1.217526 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.018402424 = queryNorm
             0.3620553 = fieldWeight in 2228, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=2228)
         0.11975547 = weight(abstract_txt:journals in 2228) [ClassicSimilarity], result of:
           0.11975547 = score(doc=2228,freq=9.0), product of:
             0.124555826 = queryWeight, product of:
               1.3199546 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.018402424 = queryNorm
             0.9614602 = fieldWeight in 2228, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.0625 = fieldNorm(doc=2228)
         0.051935136 = weight(abstract_txt:citation in 2228) [ClassicSimilarity], result of:
           0.051935136 = score(doc=2228,freq=1.0), product of:
             0.16992317 = queryWeight, product of:
               1.8882041 = boost
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.018402424 = queryNorm
             0.30563894 = fieldWeight in 2228, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.0625 = fieldNorm(doc=2228)
         0.063952535 = weight(abstract_txt:long in 2228) [ClassicSimilarity], result of:
           0.063952535 = score(doc=2228,freq=1.0), product of:
             0.19521669 = queryWeight, product of:
               2.0238628 = boost
               5.2415633 = idf(docFreq=638, maxDocs=44421)
               0.018402424 = queryNorm
             0.3275977 = fieldWeight in 2228, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2415633 = idf(docFreq=638, maxDocs=44421)
               0.0625 = fieldNorm(doc=2228)
         0.14935598 = weight(abstract_txt:cited in 2228) [ClassicSimilarity], result of:
           0.14935598 = score(doc=2228,freq=3.0), product of:
             0.23826107 = queryWeight, product of:
               2.2358835 = boost
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.018402424 = queryNorm
             0.6268585 = fieldWeight in 2228, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.0625 = fieldNorm(doc=2228)
         0.08973846 = weight(abstract_txt:citations in 2228) [ClassicSimilarity], result of:
           0.08973846 = score(doc=2228,freq=1.0), product of:
             0.26930457 = queryWeight, product of:
               2.7448199 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.018402424 = queryNorm
             0.33322293 = fieldWeight in 2228, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=2228)
       0.32 = coord(8/25)
   

5. Costas, R.; Leeuwen, T.N. van; Raan, A.F.J. van: Is scientific literature subject to a 'Sell-By-Date'? : a general methodology to analyze the 'durability' of scientific documents (2010) 0.17

   0.17274563 = sum of:
     0.17274563 = product of:
       0.61694866 = sum of:
         0.011076097 = weight(abstract_txt:that in 320) [ClassicSimilarity], result of:
           0.011076097 = score(doc=320,freq=2.0), product of:
             0.052987386 = queryWeight, product of:
               1.217526 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.018402424 = queryNorm
             0.20903271 = fieldWeight in 320, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=320)
         0.051935136 = weight(abstract_txt:citation in 320) [ClassicSimilarity], result of:
           0.051935136 = score(doc=320,freq=1.0), product of:
             0.16992317 = queryWeight, product of:
               1.8882041 = boost
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.018402424 = queryNorm
             0.30563894 = fieldWeight in 320, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.0625 = fieldNorm(doc=320)
         0.13782462 = weight(abstract_txt:histories in 320) [ClassicSimilarity], result of:
           0.13782462 = score(doc=320,freq=1.0), product of:
             0.28453293 = queryWeight, product of:
               1.9950017 = boost
               7.750224 = idf(docFreq=51, maxDocs=44421)
               0.018402424 = queryNorm
             0.484389 = fieldWeight in 320, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.750224 = idf(docFreq=51, maxDocs=44421)
               0.0625 = fieldNorm(doc=320)
         0.063952535 = weight(abstract_txt:long in 320) [ClassicSimilarity], result of:
           0.063952535 = score(doc=320,freq=1.0), product of:
             0.19521669 = queryWeight, product of:
               2.0238628 = boost
               5.2415633 = idf(docFreq=638, maxDocs=44421)
               0.018402424 = queryNorm
             0.3275977 = fieldWeight in 320, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2415633 = idf(docFreq=638, maxDocs=44421)
               0.0625 = fieldNorm(doc=320)
         0.08623072 = weight(abstract_txt:cited in 320) [ClassicSimilarity], result of:
           0.08623072 = score(doc=320,freq=1.0), product of:
             0.23826107 = queryWeight, product of:
               2.2358835 = boost
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.018402424 = queryNorm
             0.36191693 = fieldWeight in 320, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.0625 = fieldNorm(doc=320)
         0.06526824 = weight(abstract_txt:term in 320) [ClassicSimilarity], result of:
           0.06526824 = score(doc=320,freq=1.0), product of:
             0.21780069 = queryWeight, product of:
               2.4684346 = boost
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.018402424 = queryNorm
             0.29966956 = fieldWeight in 320, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.0625 = fieldNorm(doc=320)
         0.2006613 = weight(abstract_txt:citations in 320) [ClassicSimilarity], result of:
           0.2006613 = score(doc=320,freq=5.0), product of:
             0.26930457 = queryWeight, product of:
               2.7448199 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.018402424 = queryNorm
             0.74510914 = fieldWeight in 320, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=320)
       0.28 = coord(7/25)