Document (#25455)

Author

Baeza-Yates, R.
Navarro, G.

Title

XQL and proximal nodes

Source

Journal of the American Society for Information Science and technology. 53(2002) no.6, S.504-514

Year

2002

Abstract

Despite the fact that several models to structure text documents and to query on this structure have been proposed in the past, a standard has emerged only relatively recently with the introduction of XML and its proposed query language XQL, on which we focus in this article. Although there exist some implementations of XQL, efficiency of the query engine is still a problem. We show in this article that an already existing model, Proximal Nodes, which was defined with the goal of efficiency in mind, can be used as an efficient query engine behind an XQL front-end.

Object

XML
XQL

Similar documents (author)

1. Baeza-Yates, R.; Navarro, G.: Block addressing indices for approximate text retrieval (2000) 6.71

   6.7129517 = sum of:
     6.7129517 = sum of:
       2.1596797 = weight(author_txt:navarro in 5295) [ClassicSimilarity], result of:
         2.1596797 = score(doc=5295,freq=1.0), product of:
           0.56370836 = queryWeight, product of:
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.06437211 = queryNorm
           3.8312001 = fieldWeight in 5295, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.4375 = fieldNorm(doc=5295)
       2.1596797 = weight(author_txt:yates in 5295) [ClassicSimilarity], result of:
         2.1596797 = score(doc=5295,freq=1.0), product of:
           0.56370836 = queryWeight, product of:
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.06437211 = queryNorm
           3.8312001 = fieldWeight in 5295, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.4375 = fieldNorm(doc=5295)
       2.3935924 = weight(author_txt:baeza in 5295) [ClassicSimilarity], result of:
         2.3935924 = score(doc=5295,freq=1.0), product of:
           0.60371006 = queryWeight, product of:
             1.0348728 = boost
             9.06241 = idf(docFreq=13, maxDocs=44421)
             0.06437211 = queryNorm
           3.9648046 = fieldWeight in 5295, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.06241 = idf(docFreq=13, maxDocs=44421)
             0.4375 = fieldNorm(doc=5295)
   

2. Navarro, G.; Baeza-Yates, R.; Azevedo Arcoverde, J.M.: Matchsimile : a flexible approximate matching tool for searching proper names (2003) 4.79

   4.7949653 = sum of:
     4.7949653 = sum of:
       1.5426282 = weight(author_txt:navarro in 2420) [ClassicSimilarity], result of:
         1.5426282 = score(doc=2420,freq=1.0), product of:
           0.56370836 = queryWeight, product of:
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.06437211 = queryNorm
           2.7365713 = fieldWeight in 2420, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.3125 = fieldNorm(doc=2420)
       1.5426282 = weight(author_txt:yates in 2420) [ClassicSimilarity], result of:
         1.5426282 = score(doc=2420,freq=1.0), product of:
           0.56370836 = queryWeight, product of:
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.06437211 = queryNorm
           2.7365713 = fieldWeight in 2420, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.3125 = fieldNorm(doc=2420)
       1.7097088 = weight(author_txt:baeza in 2420) [ClassicSimilarity], result of:
         1.7097088 = score(doc=2420,freq=1.0), product of:
           0.60371006 = queryWeight, product of:
             1.0348728 = boost
             9.06241 = idf(docFreq=13, maxDocs=44421)
             0.06437211 = queryNorm
           2.832003 = fieldWeight in 2420, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.06241 = idf(docFreq=13, maxDocs=44421)
             0.3125 = fieldNorm(doc=2420)
   

3. Baeza-Yates, R.A.: Introduction to data structures and algorithms related to information retrieval (1992) 3.47

   3.4691596 = sum of:
     3.4691596 = product of:
       5.203739 = sum of:
         2.4682052 = weight(author_txt:yates in 4082) [ClassicSimilarity], result of:
           2.4682052 = score(doc=4082,freq=1.0), product of:
             0.56370836 = queryWeight, product of:
               8.757029 = idf(docFreq=18, maxDocs=44421)
               0.06437211 = queryNorm
             4.3785143 = fieldWeight in 4082, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.757029 = idf(docFreq=18, maxDocs=44421)
               0.5 = fieldNorm(doc=4082)
         2.7355342 = weight(author_txt:baeza in 4082) [ClassicSimilarity], result of:
           2.7355342 = score(doc=4082,freq=1.0), product of:
             0.60371006 = queryWeight, product of:
               1.0348728 = boost
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.06437211 = queryNorm
             4.531205 = fieldWeight in 4082, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.5 = fieldNorm(doc=4082)
       0.6666667 = coord(2/3)
   

4. Baeza-Yates, R.A.: String searching algorithms (1992) 3.47

   3.4691596 = sum of:
     3.4691596 = product of:
       5.203739 = sum of:
         2.4682052 = weight(author_txt:yates in 4505) [ClassicSimilarity], result of:
           2.4682052 = score(doc=4505,freq=1.0), product of:
             0.56370836 = queryWeight, product of:
               8.757029 = idf(docFreq=18, maxDocs=44421)
               0.06437211 = queryNorm
             4.3785143 = fieldWeight in 4505, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.757029 = idf(docFreq=18, maxDocs=44421)
               0.5 = fieldNorm(doc=4505)
         2.7355342 = weight(author_txt:baeza in 4505) [ClassicSimilarity], result of:
           2.7355342 = score(doc=4505,freq=1.0), product of:
             0.60371006 = queryWeight, product of:
               1.0348728 = boost
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.06437211 = queryNorm
             4.531205 = fieldWeight in 4505, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.5 = fieldNorm(doc=4505)
       0.6666667 = coord(2/3)
   

5. Castillo, C.; Baeza-Yates, R.: Web retrieval and mining (2009) 3.04

   3.0355148 = sum of:
     3.0355148 = product of:
       4.5532722 = sum of:
         2.1596797 = weight(author_txt:yates in 891) [ClassicSimilarity], result of:
           2.1596797 = score(doc=891,freq=1.0), product of:
             0.56370836 = queryWeight, product of:
               8.757029 = idf(docFreq=18, maxDocs=44421)
               0.06437211 = queryNorm
             3.8312001 = fieldWeight in 891, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.757029 = idf(docFreq=18, maxDocs=44421)
               0.4375 = fieldNorm(doc=891)
         2.3935924 = weight(author_txt:baeza in 891) [ClassicSimilarity], result of:
           2.3935924 = score(doc=891,freq=1.0), product of:
             0.60371006 = queryWeight, product of:
               1.0348728 = boost
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.06437211 = queryNorm
             3.9648046 = fieldWeight in 891, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.4375 = fieldNorm(doc=891)
       0.6666667 = coord(2/3)
   

Similar documents (content)

1. Kruschwitz, U.; AI-Bakour, H.: Users want more sophisticated search assistants : results of a task-based evaluation (2005) 0.16

   0.15667945 = sum of:
     0.15667945 = product of:
       0.4352207 = sum of:
         0.04085749 = weight(abstract_txt:fact in 5575) [ClassicSimilarity], result of:
           0.04085749 = score(doc=5575,freq=1.0), product of:
             0.112891905 = queryWeight, product of:
               1.0407873 = boost
               5.790671 = idf(docFreq=368, maxDocs=44421)
               0.018731473 = queryNorm
             0.36191693 = fieldWeight in 5575, 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=5575)
         0.01041093 = weight(abstract_txt:which in 5575) [ClassicSimilarity], result of:
           0.01041093 = score(doc=5575,freq=1.0), product of:
             0.057167783 = queryWeight, product of:
               1.047421 = boost
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.018731473 = queryNorm
             0.18211183 = fieldWeight in 5575, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.0625 = fieldNorm(doc=5575)
         0.0424237 = weight(abstract_txt:despite in 5575) [ClassicSimilarity], result of:
           0.0424237 = score(doc=5575,freq=1.0), product of:
             0.11575881 = queryWeight, product of:
               1.0539199 = boost
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.018731473 = queryNorm
             0.36648357 = fieldWeight in 5575, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.0625 = fieldNorm(doc=5575)
         0.015232842 = weight(abstract_txt:this in 5575) [ClassicSimilarity], result of:
           0.015232842 = score(doc=5575,freq=3.0), product of:
             0.05847932 = queryWeight, product of:
               1.2974552 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.018731473 = queryNorm
             0.26048255 = fieldWeight in 5575, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.0625 = fieldNorm(doc=5575)
         0.02308038 = weight(abstract_txt:article in 5575) [ClassicSimilarity], result of:
           0.02308038 = score(doc=5575,freq=1.0), product of:
             0.097197175 = queryWeight, product of:
               1.3657538 = boost
               3.79935 = idf(docFreq=2702, maxDocs=44421)
               0.018731473 = queryNorm
             0.23745938 = fieldWeight in 5575, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.79935 = idf(docFreq=2702, maxDocs=44421)
               0.0625 = fieldNorm(doc=5575)
         0.034832858 = weight(abstract_txt:structure in 5575) [ClassicSimilarity], result of:
           0.034832858 = score(doc=5575,freq=1.0), product of:
             0.12788445 = queryWeight, product of:
               1.5665867 = boost
               4.3580413 = idf(docFreq=1545, maxDocs=44421)
               0.018731473 = queryNorm
             0.27237758 = fieldWeight in 5575, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3580413 = idf(docFreq=1545, maxDocs=44421)
               0.0625 = fieldNorm(doc=5575)
         0.04117848 = weight(abstract_txt:proposed in 5575) [ClassicSimilarity], result of:
           0.04117848 = score(doc=5575,freq=1.0), product of:
             0.14297888 = queryWeight, product of:
               1.6564622 = boost
               4.608063 = idf(docFreq=1203, maxDocs=44421)
               0.018731473 = queryNorm
             0.28800395 = fieldWeight in 5575, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.608063 = idf(docFreq=1203, maxDocs=44421)
               0.0625 = fieldNorm(doc=5575)
         0.07052241 = weight(abstract_txt:engine in 5575) [ClassicSimilarity], result of:
           0.07052241 = score(doc=5575,freq=1.0), product of:
             0.20466478 = queryWeight, product of:
               1.9818335 = boost
               5.5132036 = idf(docFreq=486, maxDocs=44421)
               0.018731473 = queryNorm
             0.34457523 = fieldWeight in 5575, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5132036 = idf(docFreq=486, maxDocs=44421)
               0.0625 = fieldNorm(doc=5575)
         0.1566816 = weight(abstract_txt:query in 5575) [ClassicSimilarity], result of:
           0.1566816 = score(doc=5575,freq=3.0), product of:
             0.30442002 = queryWeight, product of:
               3.4181979 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.018731473 = queryNorm
             0.51468885 = fieldWeight in 5575, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0625 = fieldNorm(doc=5575)
       0.36 = coord(9/25)
   

2. Kruschwitz, U.; Lungley, D.; Albakour, M-D.; Song, D.: Deriving query suggestions for site search (2013) 0.14

   0.1372721 = sum of:
     0.1372721 = product of:
       0.49025753 = sum of:
         0.01041093 = weight(abstract_txt:which in 2085) [ClassicSimilarity], result of:
           0.01041093 = score(doc=2085,freq=1.0), product of:
             0.057167783 = queryWeight, product of:
               1.047421 = boost
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.018731473 = queryNorm
             0.18211183 = fieldWeight in 2085, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.0625 = fieldNorm(doc=2085)
         0.0424237 = weight(abstract_txt:despite in 2085) [ClassicSimilarity], result of:
           0.0424237 = score(doc=2085,freq=1.0), product of:
             0.11575881 = queryWeight, product of:
               1.0539199 = boost
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.018731473 = queryNorm
             0.36648357 = fieldWeight in 2085, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.0625 = fieldNorm(doc=2085)
         0.045322396 = weight(abstract_txt:already in 2085) [ClassicSimilarity], result of:
           0.045322396 = score(doc=2085,freq=1.0), product of:
             0.1209735 = queryWeight, product of:
               1.0773969 = boost
               5.994357 = idf(docFreq=300, maxDocs=44421)
               0.018731473 = queryNorm
             0.37464732 = fieldWeight in 2085, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.994357 = idf(docFreq=300, maxDocs=44421)
               0.0625 = fieldNorm(doc=2085)
         0.012437563 = weight(abstract_txt:this in 2085) [ClassicSimilarity], result of:
           0.012437563 = score(doc=2085,freq=2.0), product of:
             0.05847932 = queryWeight, product of:
               1.2974552 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.018731473 = queryNorm
             0.21268311 = fieldWeight in 2085, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.0625 = fieldNorm(doc=2085)
         0.02308038 = weight(abstract_txt:article in 2085) [ClassicSimilarity], result of:
           0.02308038 = score(doc=2085,freq=1.0), product of:
             0.097197175 = queryWeight, product of:
               1.3657538 = boost
               3.79935 = idf(docFreq=2702, maxDocs=44421)
               0.018731473 = queryNorm
             0.23745938 = fieldWeight in 2085, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.79935 = idf(docFreq=2702, maxDocs=44421)
               0.0625 = fieldNorm(doc=2085)
         0.07052241 = weight(abstract_txt:engine in 2085) [ClassicSimilarity], result of:
           0.07052241 = score(doc=2085,freq=1.0), product of:
             0.20466478 = queryWeight, product of:
               1.9818335 = boost
               5.5132036 = idf(docFreq=486, maxDocs=44421)
               0.018731473 = queryNorm
             0.34457523 = fieldWeight in 2085, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5132036 = idf(docFreq=486, maxDocs=44421)
               0.0625 = fieldNorm(doc=2085)
         0.28606015 = weight(abstract_txt:query in 2085) [ClassicSimilarity], result of:
           0.28606015 = score(doc=2085,freq=10.0), product of:
             0.30442002 = queryWeight, product of:
               3.4181979 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.018731473 = queryNorm
             0.939689 = fieldWeight in 2085, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0625 = fieldNorm(doc=2085)
       0.28 = coord(7/25)
   

3. Shah, B.; Raghavan, V.; Dhatric, P.; Zhao, X.: ¬A cluster-based approach for efficient content-based image retrieval using a similarity-preserving space transformation method (2006) 0.13

   0.13384786 = sum of:
     0.13384786 = product of:
       0.41827458 = sum of:
         0.03170982 = weight(abstract_txt:past in 118) [ClassicSimilarity], result of:
           0.03170982 = score(doc=118,freq=1.0), product of:
             0.10421706 = queryWeight, product of:
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.018731473 = queryNorm
             0.30426708 = fieldWeight in 118, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.0546875 = fieldNorm(doc=118)
         0.05041711 = weight(abstract_txt:efficient in 118) [ClassicSimilarity], result of:
           0.05041711 = score(doc=118,freq=2.0), product of:
             0.11268124 = queryWeight, product of:
               1.0398158 = boost
               5.7852654 = idf(docFreq=370, maxDocs=44421)
               0.018731473 = queryNorm
             0.44743127 = fieldWeight in 118, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.7852654 = idf(docFreq=370, maxDocs=44421)
               0.0546875 = fieldNorm(doc=118)
         0.009109563 = weight(abstract_txt:which in 118) [ClassicSimilarity], result of:
           0.009109563 = score(doc=118,freq=1.0), product of:
             0.057167783 = queryWeight, product of:
               1.047421 = boost
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.018731473 = queryNorm
             0.15934785 = fieldWeight in 118, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.0546875 = fieldNorm(doc=118)
         0.0153907 = weight(abstract_txt:this in 118) [ClassicSimilarity], result of:
           0.0153907 = score(doc=118,freq=4.0), product of:
             0.05847932 = queryWeight, product of:
               1.2974552 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.018731473 = queryNorm
             0.26318192 = fieldWeight in 118, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.0546875 = fieldNorm(doc=118)
         0.020195333 = weight(abstract_txt:article in 118) [ClassicSimilarity], result of:
           0.020195333 = score(doc=118,freq=1.0), product of:
             0.097197175 = queryWeight, product of:
               1.3657538 = boost
               3.79935 = idf(docFreq=2702, maxDocs=44421)
               0.018731473 = queryNorm
             0.20777695 = fieldWeight in 118, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.79935 = idf(docFreq=2702, maxDocs=44421)
               0.0546875 = fieldNorm(doc=118)
         0.062407818 = weight(abstract_txt:proposed in 118) [ClassicSimilarity], result of:
           0.062407818 = score(doc=118,freq=3.0), product of:
             0.14297888 = queryWeight, product of:
               1.6564622 = boost
               4.608063 = idf(docFreq=1203, maxDocs=44421)
               0.018731473 = queryNorm
             0.4364828 = fieldWeight in 118, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.608063 = idf(docFreq=1203, maxDocs=44421)
               0.0546875 = fieldNorm(doc=118)
         0.11710553 = weight(abstract_txt:efficiency in 118) [ClassicSimilarity], result of:
           0.11710553 = score(doc=118,freq=2.0), product of:
             0.24899726 = queryWeight, product of:
               2.1859634 = boost
               6.0810666 = idf(docFreq=275, maxDocs=44421)
               0.018731473 = queryNorm
             0.4703085 = fieldWeight in 118, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.0810666 = idf(docFreq=275, maxDocs=44421)
               0.0546875 = fieldNorm(doc=118)
         0.11193873 = weight(abstract_txt:query in 118) [ClassicSimilarity], result of:
           0.11193873 = score(doc=118,freq=2.0), product of:
             0.30442002 = queryWeight, product of:
               3.4181979 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.018731473 = queryNorm
             0.36771145 = fieldWeight in 118, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0546875 = fieldNorm(doc=118)
       0.32 = coord(8/25)
   

4. Selvaretnam, B.; Belkhatir, M.: ¬A linguistically driven framework for query expansion via grammatical constituent highlighting and role-based concept weighting (2016) 0.13

   0.13213417 = sum of:
     0.13213417 = product of:
       0.55055904 = sum of:
         0.06560098 = weight(abstract_txt:goal in 3876) [ClassicSimilarity], result of:
           0.06560098 = score(doc=3876,freq=2.0), product of:
             0.10587788 = queryWeight, product of:
               1.0079366 = boost
               5.6078978 = idf(docFreq=442, maxDocs=44421)
               0.018731473 = queryNorm
             0.619591 = fieldWeight in 3876, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.6078978 = idf(docFreq=442, maxDocs=44421)
               0.078125 = fieldNorm(doc=3876)
         0.018404096 = weight(abstract_txt:which in 3876) [ClassicSimilarity], result of:
           0.018404096 = score(doc=3876,freq=2.0), product of:
             0.057167783 = queryWeight, product of:
               1.047421 = boost
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.018731473 = queryNorm
             0.32193127 = fieldWeight in 3876, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.078125 = fieldNorm(doc=3876)
         0.010993357 = weight(abstract_txt:this in 3876) [ClassicSimilarity], result of:
           0.010993357 = score(doc=3876,freq=1.0), product of:
             0.05847932 = queryWeight, product of:
               1.2974552 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.018731473 = queryNorm
             0.18798709 = fieldWeight in 3876, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.078125 = fieldNorm(doc=3876)
         0.04354107 = weight(abstract_txt:structure in 3876) [ClassicSimilarity], result of:
           0.04354107 = score(doc=3876,freq=1.0), product of:
             0.12788445 = queryWeight, product of:
               1.5665867 = boost
               4.3580413 = idf(docFreq=1545, maxDocs=44421)
               0.018731473 = queryNorm
             0.34047198 = fieldWeight in 3876, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3580413 = idf(docFreq=1545, maxDocs=44421)
               0.078125 = fieldNorm(doc=3876)
         0.07279396 = weight(abstract_txt:proposed in 3876) [ClassicSimilarity], result of:
           0.07279396 = score(doc=3876,freq=2.0), product of:
             0.14297888 = queryWeight, product of:
               1.6564622 = boost
               4.608063 = idf(docFreq=1203, maxDocs=44421)
               0.018731473 = queryNorm
             0.50912386 = fieldWeight in 3876, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.608063 = idf(docFreq=1203, maxDocs=44421)
               0.078125 = fieldNorm(doc=3876)
         0.3392256 = weight(abstract_txt:query in 3876) [ClassicSimilarity], result of:
           0.3392256 = score(doc=3876,freq=9.0), product of:
             0.30442002 = queryWeight, product of:
               3.4181979 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.018731473 = queryNorm
             1.114334 = fieldWeight in 3876, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.078125 = fieldNorm(doc=3876)
       0.24 = coord(6/25)
   

5. Ozcan, R.; Altingovde, I.S.; Ulusoy, O.: Exploiting navigational queries for result presentation and caching in Web search engines (2011) 0.13

   0.1283976 = sum of:
     0.1283976 = product of:
       0.45856285 = sum of:
         0.018032258 = weight(abstract_txt:which in 364) [ClassicSimilarity], result of:
           0.018032258 = score(doc=364,freq=3.0), product of:
             0.057167783 = queryWeight, product of:
               1.047421 = boost
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.018731473 = queryNorm
             0.31542695 = fieldWeight in 364, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.9137893 = idf(docFreq=6552, maxDocs=44421)
               0.0625 = fieldNorm(doc=364)
         0.015232842 = weight(abstract_txt:this in 364) [ClassicSimilarity], result of:
           0.015232842 = score(doc=364,freq=3.0), product of:
             0.05847932 = queryWeight, product of:
               1.2974552 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.018731473 = queryNorm
             0.26048255 = fieldWeight in 364, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.0625 = fieldNorm(doc=364)
         0.02308038 = weight(abstract_txt:article in 364) [ClassicSimilarity], result of:
           0.02308038 = score(doc=364,freq=1.0), product of:
             0.097197175 = queryWeight, product of:
               1.3657538 = boost
               3.79935 = idf(docFreq=2702, maxDocs=44421)
               0.018731473 = queryNorm
             0.23745938 = fieldWeight in 364, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.79935 = idf(docFreq=2702, maxDocs=44421)
               0.0625 = fieldNorm(doc=364)
         0.04117848 = weight(abstract_txt:proposed in 364) [ClassicSimilarity], result of:
           0.04117848 = score(doc=364,freq=1.0), product of:
             0.14297888 = queryWeight, product of:
               1.6564622 = boost
               4.608063 = idf(docFreq=1203, maxDocs=44421)
               0.018731473 = queryNorm
             0.28800395 = fieldWeight in 364, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.608063 = idf(docFreq=1203, maxDocs=44421)
               0.0625 = fieldNorm(doc=364)
         0.07052241 = weight(abstract_txt:engine in 364) [ClassicSimilarity], result of:
           0.07052241 = score(doc=364,freq=1.0), product of:
             0.20466478 = queryWeight, product of:
               1.9818335 = boost
               5.5132036 = idf(docFreq=486, maxDocs=44421)
               0.018731473 = queryNorm
             0.34457523 = fieldWeight in 364, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5132036 = idf(docFreq=486, maxDocs=44421)
               0.0625 = fieldNorm(doc=364)
         0.13383488 = weight(abstract_txt:efficiency in 364) [ClassicSimilarity], result of:
           0.13383488 = score(doc=364,freq=2.0), product of:
             0.24899726 = queryWeight, product of:
               2.1859634 = boost
               6.0810666 = idf(docFreq=275, maxDocs=44421)
               0.018731473 = queryNorm
             0.53749543 = fieldWeight in 364, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.0810666 = idf(docFreq=275, maxDocs=44421)
               0.0625 = fieldNorm(doc=364)
         0.1566816 = weight(abstract_txt:query in 364) [ClassicSimilarity], result of:
           0.1566816 = score(doc=364,freq=3.0), product of:
             0.30442002 = queryWeight, product of:
               3.4181979 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.018731473 = queryNorm
             0.51468885 = fieldWeight in 364, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0625 = fieldNorm(doc=364)
       0.28 = coord(7/25)