Document (#37432)

Author

Bergamaschi, S.
Domnori, E.
Guerra, F.
Rota, S.
Lado, R.T.
Velegrakis, Y.

Title

Understanding the semantics of keyword queries on relational data without accessing the instance

Source

Semantic search over the Web. Eds.: R. De Virgilio, et al

Imprint

Berlin : Springer

Year

2012

Pages

S.131-158

Series

Data-centric systems and applications

Abstract

The birth of the Web has brought an exponential growth to the amount of the information that is freely available to the Internet population, overloading users and entangling their efforts to satisfy their information needs. Web search engines such Google, Yahoo, or Bing have become popular mainly due to the fact that they offer an easy-to-use query interface (i.e., based on keywords) and an effective and efficient query execution mechanism. The majority of these search engines do not consider information stored on the deep or hidden Web [9,28], despite the fact that the size of the deep Web is estimated to be much bigger than the surface Web [9,47]. There have been a number of systems that record interactions with the deep Web sources or automatically submit queries them (mainly through their Web form interfaces) in order to index their context. Unfortunately, this technique is only partially indexing the data instance. Moreover, it is not possible to take advantage of the query capabilities of data sources, for example, of the relational query features, because their interface is often restricted from the Web form. Besides, Web search engines focus on retrieving documents and not on querying structured sources, so they are unable to access information based on concepts.

Theme

Semantic Web
Semantisches Umfeld in Indexierung u. Retrieval

Similar documents (content)

1. Zhu, Y.; Yan, E.; Song, I.-Y..: ¬The use of a graph-based system to improve bibliographic information retrieval : system design, implementation, and evaluation (2017) 0.28

   0.28350458 = sum of:
     0.28350458 = product of:
       0.78751266 = sum of:
         0.12145937 = weight(abstract_txt:execution in 4356) [ClassicSimilarity], result of:
           0.12145937 = score(doc=4356,freq=1.0), product of:
             0.19017243 = queryWeight, product of:
               1.0722957 = boost
               8.175107 = idf(docFreq=33, maxDocs=44421)
               0.021693997 = queryNorm
             0.6386802 = fieldWeight in 4356, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.175107 = idf(docFreq=33, maxDocs=44421)
               0.078125 = fieldNorm(doc=4356)
         0.035220582 = weight(abstract_txt:form in 4356) [ClassicSimilarity], result of:
           0.035220582 = score(doc=4356,freq=1.0), product of:
             0.10497065 = queryWeight, product of:
               1.1266518 = boost
               4.294757 = idf(docFreq=1646, maxDocs=44421)
               0.021693997 = queryNorm
             0.3355279 = fieldWeight in 4356, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.294757 = idf(docFreq=1646, maxDocs=44421)
               0.078125 = fieldNorm(doc=4356)
         0.016633492 = weight(abstract_txt:that in 4356) [ClassicSimilarity], result of:
           0.016633492 = score(doc=4356,freq=2.0), product of:
             0.0636589 = queryWeight, product of:
               1.2407959 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.021693997 = queryNorm
             0.2612909 = fieldWeight in 4356, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.078125 = fieldNorm(doc=4356)
         0.028141627 = weight(abstract_txt:information in 4356) [ClassicSimilarity], result of:
           0.028141627 = score(doc=4356,freq=5.0), product of:
             0.06659725 = queryWeight, product of:
               1.269109 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.021693997 = queryNorm
             0.4225644 = fieldWeight in 4356, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.078125 = fieldNorm(doc=4356)
         0.07212379 = weight(abstract_txt:interface in 4356) [ClassicSimilarity], result of:
           0.07212379 = score(doc=4356,freq=2.0), product of:
             0.13435255 = queryWeight, product of:
               1.2746141 = boost
               4.858784 = idf(docFreq=936, maxDocs=44421)
               0.021693997 = queryNorm
             0.5368249 = fieldWeight in 4356, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.858784 = idf(docFreq=936, maxDocs=44421)
               0.078125 = fieldNorm(doc=4356)
         0.11806718 = weight(abstract_txt:queries in 4356) [ClassicSimilarity], result of:
           0.11806718 = score(doc=4356,freq=4.0), product of:
             0.14811635 = queryWeight, product of:
               1.3383117 = boost
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.021693997 = queryNorm
             0.79712456 = fieldWeight in 4356, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.078125 = fieldNorm(doc=4356)
         0.16990508 = weight(abstract_txt:relational in 4356) [ClassicSimilarity], result of:
           0.16990508 = score(doc=4356,freq=2.0), product of:
             0.23786533 = queryWeight, product of:
               1.6959823 = boost
               6.4650254 = idf(docFreq=187, maxDocs=44421)
               0.021693997 = queryNorm
             0.7142911 = fieldWeight in 4356, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.4650254 = idf(docFreq=187, maxDocs=44421)
               0.078125 = fieldNorm(doc=4356)
         0.03482089 = weight(abstract_txt:their in 4356) [ClassicSimilarity], result of:
           0.03482089 = score(doc=4356,freq=1.0), product of:
             0.1413872 = queryWeight, product of:
               2.06743 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.021693997 = queryNorm
             0.24628034 = fieldWeight in 4356, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.078125 = fieldNorm(doc=4356)
         0.19114062 = weight(abstract_txt:query in 4356) [ClassicSimilarity], result of:
           0.19114062 = score(doc=4356,freq=4.0), product of:
             0.25729352 = queryWeight, product of:
               2.4945097 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.021693997 = queryNorm
             0.74288934 = fieldWeight in 4356, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.078125 = fieldNorm(doc=4356)
       0.36 = coord(9/25)
   

2. Bizer, C.; Mendes, P.N.; Jentzsch, A.: Topology of the Web of Data (2012) 0.26

   0.2584805 = sum of:
     0.2584805 = product of:
       0.6462012 = sum of:
         0.024654405 = weight(abstract_txt:form in 1425) [ClassicSimilarity], result of:
           0.024654405 = score(doc=1425,freq=1.0), product of:
             0.10497065 = queryWeight, product of:
               1.1266518 = boost
               4.294757 = idf(docFreq=1646, maxDocs=44421)
               0.021693997 = queryNorm
             0.23486951 = fieldWeight in 1425, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.294757 = idf(docFreq=1646, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1425)
         0.10267509 = weight(abstract_txt:bing in 1425) [ClassicSimilarity], result of:
           0.10267509 = score(doc=1425,freq=1.0), product of:
             0.21566097 = queryWeight, product of:
               1.141896 = boost
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.021693997 = queryNorm
             0.4760949 = fieldWeight in 1425, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1425)
         0.014260246 = weight(abstract_txt:that in 1425) [ClassicSimilarity], result of:
           0.014260246 = score(doc=1425,freq=3.0), product of:
             0.0636589 = queryWeight, product of:
               1.2407959 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.021693997 = queryNorm
             0.22401026 = fieldWeight in 1425, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1425)
         0.008809722 = weight(abstract_txt:information in 1425) [ClassicSimilarity], result of:
           0.008809722 = score(doc=1425,freq=1.0), product of:
             0.06659725 = queryWeight, product of:
               1.269109 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.021693997 = queryNorm
             0.13228357 = fieldWeight in 1425, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1425)
         0.057185687 = weight(abstract_txt:data in 1425) [ClassicSimilarity], result of:
           0.057185687 = score(doc=1425,freq=11.0), product of:
             0.09467368 = queryWeight, product of:
               1.3104366 = boost
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.021693997 = queryNorm
             0.6040294 = fieldWeight in 1425, product of:
               3.3166249 = tf(freq=11.0), with freq of:
                 11.0 = termFreq=11.0
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1425)
         0.06445162 = weight(abstract_txt:search in 1425) [ClassicSimilarity], result of:
           0.06445162 = score(doc=1425,freq=8.0), product of:
             0.114014775 = queryWeight, product of:
               1.4380764 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.021693997 = queryNorm
             0.5652918 = fieldWeight in 1425, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1425)
         0.08409873 = weight(abstract_txt:relational in 1425) [ClassicSimilarity], result of:
           0.08409873 = score(doc=1425,freq=1.0), product of:
             0.23786533 = queryWeight, product of:
               1.6959823 = boost
               6.4650254 = idf(docFreq=187, maxDocs=44421)
               0.021693997 = queryNorm
             0.35355607 = fieldWeight in 1425, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.4650254 = idf(docFreq=187, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1425)
         0.09644195 = weight(abstract_txt:instance in 1425) [ClassicSimilarity], result of:
           0.09644195 = score(doc=1425,freq=1.0), product of:
             0.26060465 = queryWeight, product of:
               1.7751982 = boost
               6.7669935 = idf(docFreq=138, maxDocs=44421)
               0.021693997 = queryNorm
             0.37006995 = fieldWeight in 1425, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.7669935 = idf(docFreq=138, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1425)
         0.024374621 = weight(abstract_txt:their in 1425) [ClassicSimilarity], result of:
           0.024374621 = score(doc=1425,freq=1.0), product of:
             0.1413872 = queryWeight, product of:
               2.06743 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.021693997 = queryNorm
             0.17239624 = fieldWeight in 1425, 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=1425)
         0.16924907 = weight(abstract_txt:engines in 1425) [ClassicSimilarity], result of:
           0.16924907 = score(doc=1425,freq=6.0), product of:
             0.23885573 = queryWeight, product of:
               2.0814655 = boost
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.021693997 = queryNorm
             0.7085828 = fieldWeight in 1425, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1425)
       0.4 = coord(10/25)
   

3. Warnick, W.L.; Leberman, A.; Scott, R.L.; Spence, K.J.; Johnsom, L.A.; Allen, V.S.: Searching the deep Web : directed query engine applications at the Department of Energy (2001) 0.24

   0.24026702 = sum of:
     0.24026702 = product of:
       0.75083447 = sum of:
         0.035220582 = weight(abstract_txt:form in 2215) [ClassicSimilarity], result of:
           0.035220582 = score(doc=2215,freq=1.0), product of:
             0.10497065 = queryWeight, product of:
               1.1266518 = boost
               4.294757 = idf(docFreq=1646, maxDocs=44421)
               0.021693997 = queryNorm
             0.3355279 = fieldWeight in 2215, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.294757 = idf(docFreq=1646, maxDocs=44421)
               0.078125 = fieldNorm(doc=2215)
         0.011761654 = weight(abstract_txt:that in 2215) [ClassicSimilarity], result of:
           0.011761654 = score(doc=2215,freq=1.0), product of:
             0.0636589 = queryWeight, product of:
               1.2407959 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.021693997 = queryNorm
             0.18476056 = fieldWeight in 2215, 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=2215)
         0.025170635 = weight(abstract_txt:information in 2215) [ClassicSimilarity], result of:
           0.025170635 = score(doc=2215,freq=4.0), product of:
             0.06659725 = queryWeight, product of:
               1.269109 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.021693997 = queryNorm
             0.37795305 = fieldWeight in 2215, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.078125 = fieldNorm(doc=2215)
         0.03255298 = weight(abstract_txt:search in 2215) [ClassicSimilarity], result of:
           0.03255298 = score(doc=2215,freq=1.0), product of:
             0.114014775 = queryWeight, product of:
               1.4380764 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.021693997 = queryNorm
             0.28551546 = fieldWeight in 2215, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.078125 = fieldNorm(doc=2215)
         0.071160115 = weight(abstract_txt:sources in 2215) [ClassicSimilarity], result of:
           0.071160115 = score(doc=2215,freq=1.0), product of:
             0.19204001 = queryWeight, product of:
               1.8663678 = boost
               4.743019 = idf(docFreq=1051, maxDocs=44421)
               0.021693997 = queryNorm
             0.37054837 = fieldWeight in 2215, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.743019 = idf(docFreq=1051, maxDocs=44421)
               0.078125 = fieldNorm(doc=2215)
         0.17096737 = weight(abstract_txt:engines in 2215) [ClassicSimilarity], result of:
           0.17096737 = score(doc=2215,freq=3.0), product of:
             0.23885573 = queryWeight, product of:
               2.0814655 = boost
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.021693997 = queryNorm
             0.7157767 = fieldWeight in 2215, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.078125 = fieldNorm(doc=2215)
         0.2137017 = weight(abstract_txt:query in 2215) [ClassicSimilarity], result of:
           0.2137017 = score(doc=2215,freq=5.0), product of:
             0.25729352 = queryWeight, product of:
               2.4945097 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.021693997 = queryNorm
             0.8305755 = fieldWeight in 2215, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.078125 = fieldNorm(doc=2215)
         0.19029936 = weight(abstract_txt:deep in 2215) [ClassicSimilarity], result of:
           0.19029936 = score(doc=2215,freq=1.0), product of:
             0.36999187 = queryWeight, product of:
               2.5905828 = boost
               6.5834737 = idf(docFreq=166, maxDocs=44421)
               0.021693997 = queryNorm
             0.5143339 = fieldWeight in 2215, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5834737 = idf(docFreq=166, maxDocs=44421)
               0.078125 = fieldNorm(doc=2215)
       0.32 = coord(8/25)
   

4. Barrio, P.; Gravano, L.: Sampling strategies for information extraction over the deep web (2017) 0.21

   0.21394011 = sum of:
     0.21394011 = product of:
       0.6685629 = sum of:
         0.12023864 = weight(abstract_txt:execution in 4412) [ClassicSimilarity], result of:
           0.12023864 = score(doc=4412,freq=2.0), product of:
             0.19017243 = queryWeight, product of:
               1.0722957 = boost
               8.175107 = idf(docFreq=33, maxDocs=44421)
               0.021693997 = queryNorm
             0.63226116 = fieldWeight in 4412, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.175107 = idf(docFreq=33, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4412)
         0.024654405 = weight(abstract_txt:form in 4412) [ClassicSimilarity], result of:
           0.024654405 = score(doc=4412,freq=1.0), product of:
             0.10497065 = queryWeight, product of:
               1.1266518 = boost
               4.294757 = idf(docFreq=1646, maxDocs=44421)
               0.021693997 = queryNorm
             0.23486951 = fieldWeight in 4412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.294757 = idf(docFreq=1646, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4412)
         0.008233158 = weight(abstract_txt:that in 4412) [ClassicSimilarity], result of:
           0.008233158 = score(doc=4412,freq=1.0), product of:
             0.0636589 = queryWeight, product of:
               1.2407959 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.021693997 = queryNorm
             0.1293324 = fieldWeight in 4412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4412)
         0.024917657 = weight(abstract_txt:information in 4412) [ClassicSimilarity], result of:
           0.024917657 = score(doc=4412,freq=8.0), product of:
             0.06659725 = queryWeight, product of:
               1.269109 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.021693997 = queryNorm
             0.37415442 = fieldWeight in 4412, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4412)
         0.024384057 = weight(abstract_txt:data in 4412) [ClassicSimilarity], result of:
           0.024384057 = score(doc=4412,freq=2.0), product of:
             0.09467368 = queryWeight, product of:
               1.3104366 = boost
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.021693997 = queryNorm
             0.257559 = fieldWeight in 4412, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4412)
         0.03447092 = weight(abstract_txt:their in 4412) [ClassicSimilarity], result of:
           0.03447092 = score(doc=4412,freq=2.0), product of:
             0.1413872 = queryWeight, product of:
               2.06743 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.021693997 = queryNorm
             0.2438051 = fieldWeight in 4412, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4412)
         0.13379842 = weight(abstract_txt:query in 4412) [ClassicSimilarity], result of:
           0.13379842 = score(doc=4412,freq=4.0), product of:
             0.25729352 = queryWeight, product of:
               2.4945097 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.021693997 = queryNorm
             0.5200225 = fieldWeight in 4412, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4412)
         0.29786563 = weight(abstract_txt:deep in 4412) [ClassicSimilarity], result of:
           0.29786563 = score(doc=4412,freq=5.0), product of:
             0.36999187 = queryWeight, product of:
               2.5905828 = boost
               6.5834737 = idf(docFreq=166, maxDocs=44421)
               0.021693997 = queryNorm
             0.8050599 = fieldWeight in 4412, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               6.5834737 = idf(docFreq=166, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4412)
       0.32 = coord(8/25)
   

5. Ren, P.; Chen, Z.; Ma, J.; Zhang, Z.; Si, L.; Wang, S.: Detecting temporal patterns of user queries (2017) 0.21

   0.20750324 = sum of:
     0.20750324 = product of:
       0.64844763 = sum of:
         0.011761654 = weight(abstract_txt:that in 4315) [ClassicSimilarity], result of:
           0.011761654 = score(doc=4315,freq=1.0), product of:
             0.0636589 = queryWeight, product of:
               1.2407959 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.021693997 = queryNorm
             0.18476056 = fieldWeight in 4315, 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=4315)
         0.012585318 = weight(abstract_txt:information in 4315) [ClassicSimilarity], result of:
           0.012585318 = score(doc=4315,freq=1.0), product of:
             0.06659725 = queryWeight, product of:
               1.269109 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.021693997 = queryNorm
             0.18897653 = fieldWeight in 4315, 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=4315)
         0.024631616 = weight(abstract_txt:data in 4315) [ClassicSimilarity], result of:
           0.024631616 = score(doc=4315,freq=1.0), product of:
             0.09467368 = queryWeight, product of:
               1.3104366 = boost
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.021693997 = queryNorm
             0.26017386 = fieldWeight in 4315, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.078125 = fieldNorm(doc=4315)
         0.1669722 = weight(abstract_txt:queries in 4315) [ClassicSimilarity], result of:
           0.1669722 = score(doc=4315,freq=8.0), product of:
             0.14811635 = queryWeight, product of:
               1.3383117 = boost
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.021693997 = queryNorm
             1.1273043 = fieldWeight in 4315, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.078125 = fieldNorm(doc=4315)
         0.06510596 = weight(abstract_txt:search in 4315) [ClassicSimilarity], result of:
           0.06510596 = score(doc=4315,freq=4.0), product of:
             0.114014775 = queryWeight, product of:
               1.4380764 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.021693997 = queryNorm
             0.5710309 = fieldWeight in 4315, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.078125 = fieldNorm(doc=4315)
         0.10315017 = weight(abstract_txt:mainly in 4315) [ClassicSimilarity], result of:
           0.10315017 = score(doc=4315,freq=1.0), product of:
             0.2148738 = queryWeight, product of:
               1.6119349 = boost
               6.1446395 = idf(docFreq=258, maxDocs=44421)
               0.021693997 = queryNorm
             0.48004997 = fieldWeight in 4315, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1446395 = idf(docFreq=258, maxDocs=44421)
               0.078125 = fieldNorm(doc=4315)
         0.098708056 = weight(abstract_txt:engines in 4315) [ClassicSimilarity], result of:
           0.098708056 = score(doc=4315,freq=1.0), product of:
             0.23885573 = queryWeight, product of:
               2.0814655 = boost
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.021693997 = queryNorm
             0.41325387 = fieldWeight in 4315, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.078125 = fieldNorm(doc=4315)
         0.16553265 = weight(abstract_txt:query in 4315) [ClassicSimilarity], result of:
           0.16553265 = score(doc=4315,freq=3.0), product of:
             0.25729352 = queryWeight, product of:
               2.4945097 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.021693997 = queryNorm
             0.6433611 = fieldWeight in 4315, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.078125 = fieldNorm(doc=4315)
       0.32 = coord(8/25)