Document (#37475)

Author

Bahls, D.
Scherp, G.
Tochtermann, K.
Hasselbring, W.

Title

Towards a recommender system for statistical research data

Source

Proceedings of the 2nd International Workshop on Semantic Digital Archives held in conjunction with the 16th Int. Conference on Theory and Practice of Digital Libraries (TPDL) on September 27, 2012 in Paphos, Cyprus [http://ceur-ws.org/Vol-912/proceedings.pdf]. Eds.: A. Mitschik et al

Year

2012

Pages

S.61-72

Abstract

To effectively promote the exchange of scientific data, retrieval services are required to suit the needs of the research community. A large amount of research in the field of economics is based on statistical data, which is often drawn from external sources like data agencies, statistical offices or affiated institutes. Since producing such data for a particular research question is expensive in time and money-if possible at all- research activities are often influenced by the availability of suitable data. Researchers choose or adjust their questions, so that the empirical foundation to support their results is given. As a consequence, researchers look out and poll for newly available data in all sorts of directions due to a lacking information infrastructure for this domain. This circumstance and a recent report from the High Level Expert Group on Scientific Data motivate recommendation and notification services for research data sets. In this paper, we elaborate on a case-based recommender system for statistical data, which allows for precise query specification. We discuss required similarity measures on the basis of cross-domain code lists and propose a system architecture. To address the problem of continuous polling, we elaborate on a notification service to inform researchers on newly avaible data sets based on their personal request.

Content

Vgl. auch: http://sda2012.dke-research.de.

Similar documents (author)

1. Tochtermann, K.: Kommunikation in virtuellen Bibliotheken (1996) 6.01

   6.0137663 = sum of:
     6.0137663 = weight(author_txt:tochtermann in 4940) [ClassicSimilarity], result of:
       6.0137663 = fieldWeight in 4940, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.622026 = idf(docFreq=7, maxDocs=44421)
         0.625 = fieldNorm(doc=4940)
   

2. Tochtermann, K.: Hyper-G und virtuelle Bibliotheken (1996) 6.01

   6.0137663 = sum of:
     6.0137663 = weight(author_txt:tochtermann in 2138) [ClassicSimilarity], result of:
       6.0137663 = fieldWeight in 2138, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.622026 = idf(docFreq=7, maxDocs=44421)
         0.625 = fieldNorm(doc=2138)
   

3. Tochtermann, K.; Granitzer, M.: Wissenserschließung : Pfade durch den digitalen Informationsdschungel (2005) 4.81

   4.811013 = sum of:
     4.811013 = weight(author_txt:tochtermann in 5390) [ClassicSimilarity], result of:
       4.811013 = fieldWeight in 5390, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.622026 = idf(docFreq=7, maxDocs=44421)
         0.5 = fieldNorm(doc=5390)
   

4. Tochtermann, K.; Maurer, H.: Semantic Web : Geschichte und Ausblick einer Vision (2006) 4.81

   4.811013 = sum of:
     4.811013 = weight(author_txt:tochtermann in 713) [ClassicSimilarity], result of:
       4.811013 = fieldWeight in 713, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.622026 = idf(docFreq=7, maxDocs=44421)
         0.5 = fieldNorm(doc=713)
   

5. Stocker, A.; Tochtermann, K.: Anwendungen und Technologien des Web 2.0: Ein Überblick (2009) 4.81

   4.811013 = sum of:
     4.811013 = weight(author_txt:tochtermann in 858) [ClassicSimilarity], result of:
       4.811013 = fieldWeight in 858, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.622026 = idf(docFreq=7, maxDocs=44421)
         0.5 = fieldNorm(doc=858)
   

Similar documents (content)

1. Englmeier, K.; Mang, E.: Information systems driven by frequently applied profiles (1996) 0.21

   0.20946231 = sum of:
     0.20946231 = product of:
       0.65456975 = sum of:
         0.1063801 = weight(abstract_txt:institutes in 6323) [ClassicSimilarity], result of:
           0.1063801 = score(doc=6323,freq=1.0), product of:
             0.14677212 = queryWeight, product of:
               1.0250036 = boost
               7.731176 = idf(docFreq=52, maxDocs=44421)
               0.01852135 = queryNorm
             0.7247977 = fieldWeight in 6323, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.731176 = idf(docFreq=52, maxDocs=44421)
               0.09375 = fieldNorm(doc=6323)
         0.123158 = weight(abstract_txt:offices in 6323) [ClassicSimilarity], result of:
           0.123158 = score(doc=6323,freq=1.0), product of:
             0.1618248 = queryWeight, product of:
               1.0762821 = boost
               8.117949 = idf(docFreq=35, maxDocs=44421)
               0.01852135 = queryNorm
             0.7610577 = fieldWeight in 6323, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.117949 = idf(docFreq=35, maxDocs=44421)
               0.09375 = fieldNorm(doc=6323)
         0.034067184 = weight(abstract_txt:services in 6323) [ClassicSimilarity], result of:
           0.034067184 = score(doc=6323,freq=1.0), product of:
             0.08655738 = queryWeight, product of:
               1.1131935 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.01852135 = queryNorm
             0.39357919 = fieldWeight in 6323, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.09375 = fieldNorm(doc=6323)
         0.031499285 = weight(abstract_txt:based in 6323) [ClassicSimilarity], result of:
           0.031499285 = score(doc=6323,freq=2.0), product of:
             0.0746393 = queryWeight, product of:
               1.2660416 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.01852135 = queryNorm
             0.4220201 = fieldWeight in 6323, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.09375 = fieldNorm(doc=6323)
         0.026497636 = weight(abstract_txt:system in 6323) [ClassicSimilarity], result of:
           0.026497636 = score(doc=6323,freq=1.0), product of:
             0.08380086 = queryWeight, product of:
               1.3414931 = boost
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.01852135 = queryNorm
             0.31619766 = fieldWeight in 6323, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.09375 = fieldNorm(doc=6323)
         0.043567616 = weight(abstract_txt:research in 6323) [ClassicSimilarity], result of:
           0.043567616 = score(doc=6323,freq=1.0), product of:
             0.14708315 = queryWeight, product of:
               2.5133946 = boost
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.01852135 = queryNorm
             0.2962108 = fieldWeight in 6323, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.09375 = fieldNorm(doc=6323)
         0.15713266 = weight(abstract_txt:statistical in 6323) [ClassicSimilarity], result of:
           0.15713266 = score(doc=6323,freq=1.0), product of:
             0.3021813 = queryWeight, product of:
               2.9414902 = boost
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.01852135 = queryNorm
             0.5199946 = fieldWeight in 6323, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.09375 = fieldNorm(doc=6323)
         0.13226725 = weight(abstract_txt:data in 6323) [ClassicSimilarity], result of:
           0.13226725 = score(doc=6323,freq=2.0), product of:
             0.29956594 = queryWeight, product of:
               4.8567543 = boost
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.01852135 = queryNorm
             0.4415297 = fieldWeight in 6323, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.09375 = fieldNorm(doc=6323)
       0.32 = coord(8/25)
   

2. Palsdottir, A.: Data literacy and management of research data : a prerequisite for the sharing of research data (2021) 0.15

   0.15330373 = sum of:
     0.15330373 = product of:
       0.47907418 = sum of:
         0.05866659 = weight(abstract_txt:suit in 1184) [ClassicSimilarity], result of:
           0.05866659 = score(doc=1184,freq=1.0), product of:
             0.15668131 = queryWeight, product of:
               1.0590396 = boost
               7.9878955 = idf(docFreq=40, maxDocs=44421)
               0.01852135 = queryNorm
             0.3744326 = fieldWeight in 1184, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.9878955 = idf(docFreq=40, maxDocs=44421)
               0.046875 = fieldNorm(doc=1184)
         0.029503044 = weight(abstract_txt:services in 1184) [ClassicSimilarity], result of:
           0.029503044 = score(doc=1184,freq=3.0), product of:
             0.08655738 = queryWeight, product of:
               1.1131935 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.01852135 = queryNorm
             0.34084955 = fieldWeight in 1184, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.046875 = fieldNorm(doc=1184)
         0.018736772 = weight(abstract_txt:their in 1184) [ClassicSimilarity], result of:
           0.018736772 = score(doc=1184,freq=3.0), product of:
             0.07320709 = queryWeight, product of:
               1.2538362 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.01852135 = queryNorm
             0.25594205 = fieldWeight in 1184, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.046875 = fieldNorm(doc=1184)
         0.015749643 = weight(abstract_txt:based in 1184) [ClassicSimilarity], result of:
           0.015749643 = score(doc=1184,freq=2.0), product of:
             0.0746393 = queryWeight, product of:
               1.2660416 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.01852135 = queryNorm
             0.21101005 = fieldWeight in 1184, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.046875 = fieldNorm(doc=1184)
         0.03204029 = weight(abstract_txt:sets in 1184) [ClassicSimilarity], result of:
           0.03204029 = score(doc=1184,freq=1.0), product of:
             0.13189578 = queryWeight, product of:
               1.3741497 = boost
               5.18232 = idf(docFreq=677, maxDocs=44421)
               0.01852135 = queryNorm
             0.24292126 = fieldWeight in 1184, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.18232 = idf(docFreq=677, maxDocs=44421)
               0.046875 = fieldNorm(doc=1184)
         0.053728253 = weight(abstract_txt:researchers in 1184) [ClassicSimilarity], result of:
           0.053728253 = score(doc=1184,freq=2.0), product of:
             0.16914359 = queryWeight, product of:
               1.9058644 = boost
               4.791714 = idf(docFreq=1001, maxDocs=44421)
               0.01852135 = queryNorm
             0.31764877 = fieldWeight in 1184, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.791714 = idf(docFreq=1001, maxDocs=44421)
               0.046875 = fieldNorm(doc=1184)
         0.07224872 = weight(abstract_txt:research in 1184) [ClassicSimilarity], result of:
           0.07224872 = score(doc=1184,freq=11.0), product of:
             0.14708315 = queryWeight, product of:
               2.5133946 = boost
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.01852135 = queryNorm
             0.49121004 = fieldWeight in 1184, product of:
               3.3166249 = tf(freq=11.0), with freq of:
                 11.0 = termFreq=11.0
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.046875 = fieldNorm(doc=1184)
         0.19840087 = weight(abstract_txt:data in 1184) [ClassicSimilarity], result of:
           0.19840087 = score(doc=1184,freq=18.0), product of:
             0.29956594 = queryWeight, product of:
               4.8567543 = boost
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.01852135 = queryNorm
             0.6622945 = fieldWeight in 1184, product of:
               4.2426405 = tf(freq=18.0), with freq of:
                 18.0 = termFreq=18.0
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.046875 = fieldNorm(doc=1184)
       0.32 = coord(8/25)
   

3. Stuckenschmidt, H.; Harmelen, F van; Waard, A. de; Scerri, T.; Bhogal, R.; Buel, J. van; Crowlesmith, I.; Fluit, C.; Kampman, A.; Broekstra, J.; Mulligen, E. van: Exploring large document repositories with RDF technology : the DOPE project (2004) 0.11

   0.10768635 = sum of:
     0.10768635 = product of:
       0.33651984 = sum of:
         0.06205506 = weight(abstract_txt:institutes in 1762) [ClassicSimilarity], result of:
           0.06205506 = score(doc=1762,freq=1.0), product of:
             0.14677212 = queryWeight, product of:
               1.0250036 = boost
               7.731176 = idf(docFreq=52, maxDocs=44421)
               0.01852135 = queryNorm
             0.4227987 = fieldWeight in 1762, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.731176 = idf(docFreq=52, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1762)
         0.02669938 = weight(abstract_txt:scientific in 1762) [ClassicSimilarity], result of:
           0.02669938 = score(doc=1762,freq=1.0), product of:
             0.10539085 = queryWeight, product of:
               1.2283441 = boost
               4.6324444 = idf(docFreq=1174, maxDocs=44421)
               0.01852135 = queryNorm
             0.2533368 = fieldWeight in 1762, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6324444 = idf(docFreq=1174, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1762)
         0.012620627 = weight(abstract_txt:their in 1762) [ClassicSimilarity], result of:
           0.012620627 = score(doc=1762,freq=1.0), product of:
             0.07320709 = queryWeight, product of:
               1.2538362 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.01852135 = queryNorm
             0.17239624 = fieldWeight in 1762, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1762)
         0.034375697 = weight(abstract_txt:based in 1762) [ClassicSimilarity], result of:
           0.034375697 = score(doc=1762,freq=7.0), product of:
             0.0746393 = queryWeight, product of:
               1.2660416 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.01852135 = queryNorm
             0.46055764 = fieldWeight in 1762, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1762)
         0.026772229 = weight(abstract_txt:system in 1762) [ClassicSimilarity], result of:
           0.026772229 = score(doc=1762,freq=3.0), product of:
             0.08380086 = queryWeight, product of:
               1.3414931 = boost
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.01852135 = queryNorm
             0.3194744 = fieldWeight in 1762, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1762)
         0.043559067 = weight(abstract_txt:required in 1762) [ClassicSimilarity], result of:
           0.043559067 = score(doc=1762,freq=1.0), product of:
             0.14605659 = queryWeight, product of:
               1.4460362 = boost
               5.453425 = idf(docFreq=516, maxDocs=44421)
               0.01852135 = queryNorm
             0.29823416 = fieldWeight in 1762, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.453425 = idf(docFreq=516, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1762)
         0.03594145 = weight(abstract_txt:research in 1762) [ClassicSimilarity], result of:
           0.03594145 = score(doc=1762,freq=2.0), product of:
             0.14708315 = queryWeight, product of:
               2.5133946 = boost
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.01852135 = queryNorm
             0.24436146 = fieldWeight in 1762, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1762)
         0.094496295 = weight(abstract_txt:data in 1762) [ClassicSimilarity], result of:
           0.094496295 = score(doc=1762,freq=3.0), product of:
             0.29956594 = queryWeight, product of:
               4.8567543 = boost
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.01852135 = queryNorm
             0.31544405 = fieldWeight in 1762, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1762)
       0.32 = coord(8/25)
   

4. Borgman, C.L.; Scharnhorst, A.; Golshan, M.S.: Digital data archives as knowledge infrastructures : mediating data sharing and reuse (2019) 0.11

   0.106878065 = sum of:
     0.106878065 = product of:
       0.38170737 = sum of:
         0.032118846 = weight(abstract_txt:services in 325) [ClassicSimilarity], result of:
           0.032118846 = score(doc=325,freq=2.0), product of:
             0.08655738 = queryWeight, product of:
               1.1131935 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.01852135 = queryNorm
             0.37107 = fieldWeight in 325, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.0625 = fieldNorm(doc=325)
         0.028847147 = weight(abstract_txt:their in 325) [ClassicSimilarity], result of:
           0.028847147 = score(doc=325,freq=4.0), product of:
             0.07320709 = queryWeight, product of:
               1.2538362 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.01852135 = queryNorm
             0.39404854 = fieldWeight in 325, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.0625 = fieldNorm(doc=325)
         0.03335418 = weight(abstract_txt:often in 325) [ClassicSimilarity], result of:
           0.03335418 = score(doc=325,freq=1.0), product of:
             0.111834124 = queryWeight, product of:
               1.2653357 = boost
               4.7719507 = idf(docFreq=1021, maxDocs=44421)
               0.01852135 = queryNorm
             0.29824692 = fieldWeight in 325, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7719507 = idf(docFreq=1021, maxDocs=44421)
               0.0625 = fieldNorm(doc=325)
         0.042720385 = weight(abstract_txt:sets in 325) [ClassicSimilarity], result of:
           0.042720385 = score(doc=325,freq=1.0), product of:
             0.13189578 = queryWeight, product of:
               1.3741497 = boost
               5.18232 = idf(docFreq=677, maxDocs=44421)
               0.01852135 = queryNorm
             0.323895 = fieldWeight in 325, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.18232 = idf(docFreq=677, maxDocs=44421)
               0.0625 = fieldNorm(doc=325)
         0.050655484 = weight(abstract_txt:researchers in 325) [ClassicSimilarity], result of:
           0.050655484 = score(doc=325,freq=1.0), product of:
             0.16914359 = queryWeight, product of:
               1.9058644 = boost
               4.791714 = idf(docFreq=1001, maxDocs=44421)
               0.01852135 = queryNorm
             0.29948214 = fieldWeight in 325, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.791714 = idf(docFreq=1001, maxDocs=44421)
               0.0625 = fieldNorm(doc=325)
         0.029045079 = weight(abstract_txt:research in 325) [ClassicSimilarity], result of:
           0.029045079 = score(doc=325,freq=1.0), product of:
             0.14708315 = queryWeight, product of:
               2.5133946 = boost
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.01852135 = queryNorm
             0.19747387 = fieldWeight in 325, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.0625 = fieldNorm(doc=325)
         0.16496626 = weight(abstract_txt:data in 325) [ClassicSimilarity], result of:
           0.16496626 = score(doc=325,freq=7.0), product of:
             0.29956594 = queryWeight, product of:
               4.8567543 = boost
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.01852135 = queryNorm
             0.5506843 = fieldWeight in 325, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.0625 = fieldNorm(doc=325)
       0.28 = coord(7/25)
   

5. Glanzel, W.: ¬The need for standards in bibliometric research and technology (1996) 0.11

   0.106740765 = sum of:
     0.106740765 = product of:
       0.4447532 = sum of:
         0.101340964 = weight(abstract_txt:lacking in 7548) [ClassicSimilarity], result of:
           0.101340964 = score(doc=7548,freq=1.0), product of:
             0.14209975 = queryWeight, product of:
               1.0085566 = boost
               7.607123 = idf(docFreq=59, maxDocs=44421)
               0.01852135 = queryNorm
             0.7131678 = fieldWeight in 7548, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.607123 = idf(docFreq=59, maxDocs=44421)
               0.09375 = fieldNorm(doc=7548)
         0.1063801 = weight(abstract_txt:institutes in 7548) [ClassicSimilarity], result of:
           0.1063801 = score(doc=7548,freq=1.0), product of:
             0.14677212 = queryWeight, product of:
               1.0250036 = boost
               7.731176 = idf(docFreq=52, maxDocs=44421)
               0.01852135 = queryNorm
             0.7247977 = fieldWeight in 7548, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.731176 = idf(docFreq=52, maxDocs=44421)
               0.09375 = fieldNorm(doc=7548)
         0.045770366 = weight(abstract_txt:scientific in 7548) [ClassicSimilarity], result of:
           0.045770366 = score(doc=7548,freq=1.0), product of:
             0.10539085 = queryWeight, product of:
               1.2283441 = boost
               4.6324444 = idf(docFreq=1174, maxDocs=44421)
               0.01852135 = queryNorm
             0.43429166 = fieldWeight in 7548, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6324444 = idf(docFreq=1174, maxDocs=44421)
               0.09375 = fieldNorm(doc=7548)
         0.02227336 = weight(abstract_txt:based in 7548) [ClassicSimilarity], result of:
           0.02227336 = score(doc=7548,freq=1.0), product of:
             0.0746393 = queryWeight, product of:
               1.2660416 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.01852135 = queryNorm
             0.2984133 = fieldWeight in 7548, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.09375 = fieldNorm(doc=7548)
         0.07546132 = weight(abstract_txt:research in 7548) [ClassicSimilarity], result of:
           0.07546132 = score(doc=7548,freq=3.0), product of:
             0.14708315 = queryWeight, product of:
               2.5133946 = boost
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.01852135 = queryNorm
             0.5130521 = fieldWeight in 7548, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.09375 = fieldNorm(doc=7548)
         0.09352708 = weight(abstract_txt:data in 7548) [ClassicSimilarity], result of:
           0.09352708 = score(doc=7548,freq=1.0), product of:
             0.29956594 = queryWeight, product of:
               4.8567543 = boost
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.01852135 = queryNorm
             0.31220865 = fieldWeight in 7548, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.09375 = fieldNorm(doc=7548)
       0.24 = coord(6/25)