Document (#38301)

Author

Torres, S.D.
Hiemstra, D.
Weber, I.
Serdyukov, P.

Title

Query recommendation in the information domain of children

Source

Journal of the Association for Information Science and Technology. 65(2014) no.7, S.1368-1384

Year

2014

Abstract

Children represent an increasing group of web users. Some of the key problems that hamper their search experience is their limited vocabulary, their difficulty in using the right keywords, and the inappropriateness of their general-purpose query suggestions. In this work, we propose a method that uses tags from social media to suggest queries related to children's topics. Concretely, we propose a simple yet effective approach to bias a random walk defined on a bipartite graph of web resources and tags through keywords that are more commonly used to describe resources for children. We evaluate our method using a large query log sample of queries submitted by children. We show that our method outperforms by a large margin the query suggestions of modern search engines and state-of-the art query suggestions based on random walks. We improve further the quality of the ranking by combining the score of the random walk with topical and language modeling features to emphasize even more the child-related aspects of the query suggestions.

Theme

Suchtaktik

Similar documents (author)

1. Salinas, D. Torres -> Torres-Salinas, D.: 1.86

   1.8594161 = sum of:
     1.8594161 = product of:
       3.7188323 = sum of:
         3.7188323 = weight(author_txt:torres in 1495) [ClassicSimilarity], result of:
           3.7188323 = score(doc=1495,freq=2.0), product of:
             0.8054802 = queryWeight, product of:
               1.1658382 = boost
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.07936173 = queryNorm
             4.6169133 = fieldWeight in 1495, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.375 = fieldNorm(doc=1495)
       0.5 = coord(1/2)
   

2. Salinas, D. Torres- -> Torres-Salinas, D.: 1.86

   1.8594161 = sum of:
     1.8594161 = product of:
       3.7188323 = sum of:
         3.7188323 = weight(author_txt:torres in 1797) [ClassicSimilarity], result of:
           3.7188323 = score(doc=1797,freq=2.0), product of:
             0.8054802 = queryWeight, product of:
               1.1658382 = boost
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.07936173 = queryNorm
             4.6169133 = fieldWeight in 1797, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.375 = fieldNorm(doc=1797)
       0.5 = coord(1/2)
   

3. Salinas, D. Torres- => Torres-Salinas, D.: 1.86

   1.8594161 = sum of:
     1.8594161 = product of:
       3.7188323 = sum of:
         3.7188323 = weight(author_txt:torres in 53) [ClassicSimilarity], result of:
           3.7188323 = score(doc=53,freq=2.0), product of:
             0.8054802 = queryWeight, product of:
               1.1658382 = boost
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.07936173 = queryNorm
             4.6169133 = fieldWeight in 53, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.375 = fieldNorm(doc=53)
       0.5 = coord(1/2)
   

4. Torres, L.; Arias, E.: Stochastic generation of the codebook in vector quantization of images : compression systems (1993) 1.75

   1.7530743 = sum of:
     1.7530743 = product of:
       3.5061486 = sum of:
         3.5061486 = weight(author_txt:torres in 6688) [ClassicSimilarity], result of:
           3.5061486 = score(doc=6688,freq=1.0), product of:
             0.8054802 = queryWeight, product of:
               1.1658382 = boost
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.07936173 = queryNorm
             4.3528676 = fieldWeight in 6688, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.5 = fieldNorm(doc=6688)
       0.5 = coord(1/2)
   

5. Torres Ramírez, I. de => Ramírez, I. de Torres: 1.55

   1.5495133 = sum of:
     1.5495133 = product of:
       3.0990267 = sum of:
         3.0990267 = weight(author_txt:torres in 3281) [ClassicSimilarity], result of:
           3.0990267 = score(doc=3281,freq=2.0), product of:
             0.8054802 = queryWeight, product of:
               1.1658382 = boost
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.07936173 = queryNorm
             3.8474276 = fieldWeight in 3281, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.3125 = fieldNorm(doc=3281)
       0.5 = coord(1/2)
   

Similar documents (content)

1. Bilal, D.; Gwizdka, J.: Children's query types and reformulations in Google search (2018) 0.27

   0.2695002 = sum of:
     0.2695002 = product of:
       0.9625007 = sum of:
         0.11952543 = weight(abstract_txt:children's in 47) [ClassicSimilarity], result of:
           0.11952543 = score(doc=47,freq=5.0), product of:
             0.11857402 = queryWeight, product of:
               1.0149843 = boost
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.016196623 = queryNorm
             1.0080237 = fieldWeight in 47, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.03406297 = weight(abstract_txt:search in 47) [ClassicSimilarity], result of:
           0.03406297 = score(doc=47,freq=6.0), product of:
             0.060881767 = queryWeight, product of:
               1.0285447 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.016196623 = queryNorm
             0.5594938 = fieldWeight in 47, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.010658369 = weight(abstract_txt:that in 47) [ClassicSimilarity], result of:
           0.010658369 = score(doc=47,freq=2.0), product of:
             0.050989002 = queryWeight, product of:
               1.3311677 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.016196623 = queryNorm
             0.20903271 = fieldWeight in 47, 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=47)
         0.10699206 = weight(abstract_txt:queries in 47) [ClassicSimilarity], result of:
           0.10699206 = score(doc=47,freq=8.0), product of:
             0.118637055 = queryWeight, product of:
               1.435786 = boost
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.016196623 = queryNorm
             0.9018435 = fieldWeight in 47, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.025243651 = weight(abstract_txt:their in 47) [ClassicSimilarity], result of:
           0.025243651 = score(doc=47,freq=2.0), product of:
             0.090597756 = queryWeight, product of:
               1.774407 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.016196623 = queryNorm
             0.2786344 = fieldWeight in 47, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.4410106 = weight(abstract_txt:children in 47) [ClassicSimilarity], result of:
           0.4410106 = score(doc=47,freq=6.0), product of:
             0.42293626 = queryWeight, product of:
               3.8338225 = boost
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.016196623 = queryNorm
             1.0427353 = fieldWeight in 47, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.22500762 = weight(abstract_txt:query in 47) [ClassicSimilarity], result of:
           0.22500762 = score(doc=47,freq=6.0), product of:
             0.3091274 = queryWeight, product of:
               4.014292 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.016196623 = queryNorm
             0.72787994 = fieldWeight in 47, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
       0.28 = coord(7/25)
   

2. Li, X.; Schijvenaars, B.J.A.; Rijke, M.de: Investigating queries and search failures in academic search (2017) 0.25

   0.2513924 = sum of:
     0.2513924 = product of:
       0.78560126 = sum of:
         0.045528043 = weight(abstract_txt:search in 33) [ClassicSimilarity], result of:
           0.045528043 = score(doc=33,freq=14.0), product of:
             0.060881767 = queryWeight, product of:
               1.0285447 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.016196623 = queryNorm
             0.7478108 = fieldWeight in 33, product of:
               3.7416575 = tf(freq=14.0), with freq of:
                 14.0 = termFreq=14.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0546875 = fieldNorm(doc=33)
         0.021854192 = weight(abstract_txt:large in 33) [ClassicSimilarity], result of:
           0.021854192 = score(doc=33,freq=1.0), product of:
             0.08995676 = queryWeight, product of:
               1.2502488 = boost
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.016196623 = queryNorm
             0.24294108 = fieldWeight in 33, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.0546875 = fieldNorm(doc=33)
         0.0147458175 = weight(abstract_txt:that in 33) [ClassicSimilarity], result of:
           0.0147458175 = score(doc=33,freq=5.0), product of:
             0.050989002 = queryWeight, product of:
               1.3311677 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.016196623 = queryNorm
             0.28919604 = fieldWeight in 33, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0546875 = fieldNorm(doc=33)
         0.1097769 = weight(abstract_txt:queries in 33) [ClassicSimilarity], result of:
           0.1097769 = score(doc=33,freq=11.0), product of:
             0.118637055 = queryWeight, product of:
               1.435786 = boost
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.016196623 = queryNorm
             0.9253171 = fieldWeight in 33, product of:
               3.3166249 = tf(freq=11.0), with freq of:
                 11.0 = termFreq=11.0
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.0546875 = fieldNorm(doc=33)
         0.015618713 = weight(abstract_txt:their in 33) [ClassicSimilarity], result of:
           0.015618713 = score(doc=33,freq=1.0), product of:
             0.090597756 = queryWeight, product of:
               1.774407 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.016196623 = queryNorm
             0.17239624 = fieldWeight in 33, 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=33)
         0.048149783 = weight(abstract_txt:method in 33) [ClassicSimilarity], result of:
           0.048149783 = score(doc=33,freq=2.0), product of:
             0.13838658 = queryWeight, product of:
               1.8992063 = boost
               4.4988065 = idf(docFreq=1342, maxDocs=44421)
               0.016196623 = queryNorm
             0.3479368 = fieldWeight in 33, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4988065 = idf(docFreq=1342, maxDocs=44421)
               0.0546875 = fieldNorm(doc=33)
         0.24012588 = weight(abstract_txt:suggestions in 33) [ClassicSimilarity], result of:
           0.24012588 = score(doc=33,freq=5.0), product of:
             0.32758445 = queryWeight, product of:
               3.3740861 = boost
               5.994357 = idf(docFreq=300, maxDocs=44421)
               0.016196623 = queryNorm
             0.73301977 = fieldWeight in 33, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.994357 = idf(docFreq=300, maxDocs=44421)
               0.0546875 = fieldNorm(doc=33)
         0.28980199 = weight(abstract_txt:query in 33) [ClassicSimilarity], result of:
           0.28980199 = score(doc=33,freq=13.0), product of:
             0.3091274 = queryWeight, product of:
               4.014292 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.016196623 = queryNorm
             0.937484 = fieldWeight in 33, product of:
               3.6055512 = tf(freq=13.0), with freq of:
                 13.0 = termFreq=13.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0546875 = fieldNorm(doc=33)
       0.32 = coord(8/25)
   

3. Kim, Y.; Seo, J.; Croft, W.B.; Smith, D.A.: Automatic suggestion of phrasal-concept queries for literature search (2014) 0.25

   0.25050697 = sum of:
     0.25050697 = product of:
       0.69585264 = sum of:
         0.024086157 = weight(abstract_txt:search in 3692) [ClassicSimilarity], result of:
           0.024086157 = score(doc=3692,freq=3.0), product of:
             0.060881767 = queryWeight, product of:
               1.0285447 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.016196623 = queryNorm
             0.39562184 = fieldWeight in 3692, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=3692)
         0.029811619 = weight(abstract_txt:related in 3692) [ClassicSimilarity], result of:
           0.029811619 = score(doc=3692,freq=2.0), product of:
             0.08033961 = queryWeight, product of:
               1.181529 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.016196623 = queryNorm
             0.37107 = fieldWeight in 3692, 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=3692)
         0.007536605 = weight(abstract_txt:that in 3692) [ClassicSimilarity], result of:
           0.007536605 = score(doc=3692,freq=1.0), product of:
             0.050989002 = queryWeight, product of:
               1.3311677 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.016196623 = queryNorm
             0.14780845 = fieldWeight in 3692, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=3692)
         0.06551898 = weight(abstract_txt:queries in 3692) [ClassicSimilarity], result of:
           0.06551898 = score(doc=3692,freq=3.0), product of:
             0.118637055 = queryWeight, product of:
               1.435786 = boost
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.016196623 = queryNorm
             0.5522641 = fieldWeight in 3692, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.0625 = fieldNorm(doc=3692)
         0.038729947 = weight(abstract_txt:propose in 3692) [ClassicSimilarity], result of:
           0.038729947 = score(doc=3692,freq=1.0), product of:
             0.12051671 = queryWeight, product of:
               1.4471154 = boost
               5.1418524 = idf(docFreq=705, maxDocs=44421)
               0.016196623 = queryNorm
             0.32136577 = fieldWeight in 3692, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1418524 = idf(docFreq=705, maxDocs=44421)
               0.0625 = fieldNorm(doc=3692)
         0.061672457 = weight(abstract_txt:keywords in 3692) [ClassicSimilarity], result of:
           0.061672457 = score(doc=3692,freq=1.0), product of:
             0.16434008 = queryWeight, product of:
               1.6898621 = boost
               6.004374 = idf(docFreq=297, maxDocs=44421)
               0.016196623 = queryNorm
             0.37527338 = fieldWeight in 3692, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.004374 = idf(docFreq=297, maxDocs=44421)
               0.0625 = fieldNorm(doc=3692)
         0.030917034 = weight(abstract_txt:their in 3692) [ClassicSimilarity], result of:
           0.030917034 = score(doc=3692,freq=3.0), product of:
             0.090597756 = queryWeight, product of:
               1.774407 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.016196623 = queryNorm
             0.34125605 = fieldWeight in 3692, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.0625 = fieldNorm(doc=3692)
         0.21257223 = weight(abstract_txt:suggestions in 3692) [ClassicSimilarity], result of:
           0.21257223 = score(doc=3692,freq=3.0), product of:
             0.32758445 = queryWeight, product of:
               3.3740861 = boost
               5.994357 = idf(docFreq=300, maxDocs=44421)
               0.016196623 = queryNorm
             0.6489082 = fieldWeight in 3692, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.994357 = idf(docFreq=300, maxDocs=44421)
               0.0625 = fieldNorm(doc=3692)
         0.22500762 = weight(abstract_txt:query in 3692) [ClassicSimilarity], result of:
           0.22500762 = score(doc=3692,freq=6.0), product of:
             0.3091274 = queryWeight, product of:
               4.014292 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.016196623 = queryNorm
             0.72787994 = fieldWeight in 3692, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0625 = fieldNorm(doc=3692)
       0.36 = coord(9/25)
   

4. Shi, X.; Yang, C.C.: Mining related queries from Web search engine query logs using an improved association rule mining model (2007) 0.22

   0.22244261 = sum of:
     0.22244261 = product of:
       0.61789614 = sum of:
         0.027812298 = weight(abstract_txt:search in 1597) [ClassicSimilarity], result of:
           0.027812298 = score(doc=1597,freq=4.0), product of:
             0.060881767 = queryWeight, product of:
               1.0285447 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.016196623 = queryNorm
             0.45682475 = fieldWeight in 1597, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=1597)
         0.05163524 = weight(abstract_txt:related in 1597) [ClassicSimilarity], result of:
           0.05163524 = score(doc=1597,freq=6.0), product of:
             0.08033961 = queryWeight, product of:
               1.181529 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.016196623 = queryNorm
             0.6427121 = fieldWeight in 1597, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.0625 = fieldNorm(doc=1597)
         0.007536605 = weight(abstract_txt:that in 1597) [ClassicSimilarity], result of:
           0.007536605 = score(doc=1597,freq=1.0), product of:
             0.050989002 = queryWeight, product of:
               1.3311677 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.016196623 = queryNorm
             0.14780845 = fieldWeight in 1597, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=1597)
         0.11962076 = weight(abstract_txt:queries in 1597) [ClassicSimilarity], result of:
           0.11962076 = score(doc=1597,freq=10.0), product of:
             0.118637055 = queryWeight, product of:
               1.435786 = boost
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.016196623 = queryNorm
             1.0082917 = fieldWeight in 1597, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.0625 = fieldNorm(doc=1597)
         0.038729947 = weight(abstract_txt:propose in 1597) [ClassicSimilarity], result of:
           0.038729947 = score(doc=1597,freq=1.0), product of:
             0.12051671 = queryWeight, product of:
               1.4471154 = boost
               5.1418524 = idf(docFreq=705, maxDocs=44421)
               0.016196623 = queryNorm
             0.32136577 = fieldWeight in 1597, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1418524 = idf(docFreq=705, maxDocs=44421)
               0.0625 = fieldNorm(doc=1597)
         0.035699915 = weight(abstract_txt:their in 1597) [ClassicSimilarity], result of:
           0.035699915 = score(doc=1597,freq=4.0), product of:
             0.090597756 = queryWeight, product of:
               1.774407 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.016196623 = queryNorm
             0.39404854 = fieldWeight in 1597, 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=1597)
         0.055028327 = weight(abstract_txt:method in 1597) [ClassicSimilarity], result of:
           0.055028327 = score(doc=1597,freq=2.0), product of:
             0.13838658 = queryWeight, product of:
               1.8992063 = boost
               4.4988065 = idf(docFreq=1342, maxDocs=44421)
               0.016196623 = queryNorm
             0.39764208 = fieldWeight in 1597, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4988065 = idf(docFreq=1342, maxDocs=44421)
               0.0625 = fieldNorm(doc=1597)
         0.12272863 = weight(abstract_txt:suggestions in 1597) [ClassicSimilarity], result of:
           0.12272863 = score(doc=1597,freq=1.0), product of:
             0.32758445 = queryWeight, product of:
               3.3740861 = boost
               5.994357 = idf(docFreq=300, maxDocs=44421)
               0.016196623 = queryNorm
             0.37464732 = fieldWeight in 1597, 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=1597)
         0.15910442 = weight(abstract_txt:query in 1597) [ClassicSimilarity], result of:
           0.15910442 = score(doc=1597,freq=3.0), product of:
             0.3091274 = queryWeight, product of:
               4.014292 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.016196623 = queryNorm
             0.51468885 = fieldWeight in 1597, 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=1597)
       0.36 = coord(9/25)
   

5. Hsu, M.-H.; Chen, H.-H.: Efficient and effective prediction of social tags to enhance Web search (2011) 0.22

   0.21890418 = sum of:
     0.21890418 = product of:
       0.6840756 = sum of:
         0.024086157 = weight(abstract_txt:search in 625) [ClassicSimilarity], result of:
           0.024086157 = score(doc=625,freq=3.0), product of:
             0.060881767 = queryWeight, product of:
               1.0285447 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.016196623 = queryNorm
             0.39562184 = fieldWeight in 625, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=625)
         0.030362163 = weight(abstract_txt:resources in 625) [ClassicSimilarity], result of:
           0.030362163 = score(doc=625,freq=2.0), product of:
             0.0813257 = queryWeight, product of:
               1.188758 = boost
               4.2238636 = idf(docFreq=1767, maxDocs=44421)
               0.016196623 = queryNorm
             0.3733403 = fieldWeight in 625, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.2238636 = idf(docFreq=1767, maxDocs=44421)
               0.0625 = fieldNorm(doc=625)
         0.013053782 = weight(abstract_txt:that in 625) [ClassicSimilarity], result of:
           0.013053782 = score(doc=625,freq=3.0), product of:
             0.050989002 = queryWeight, product of:
               1.3311677 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.016196623 = queryNorm
             0.25601172 = fieldWeight in 625, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=625)
         0.038729947 = weight(abstract_txt:propose in 625) [ClassicSimilarity], result of:
           0.038729947 = score(doc=625,freq=1.0), product of:
             0.12051671 = queryWeight, product of:
               1.4471154 = boost
               5.1418524 = idf(docFreq=705, maxDocs=44421)
               0.016196623 = queryNorm
             0.32136577 = fieldWeight in 625, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1418524 = idf(docFreq=705, maxDocs=44421)
               0.0625 = fieldNorm(doc=625)
         0.124658994 = weight(abstract_txt:tags in 625) [ClassicSimilarity], result of:
           0.124658994 = score(doc=625,freq=3.0), product of:
             0.18216209 = queryWeight, product of:
               1.7791334 = boost
               6.3215704 = idf(docFreq=216, maxDocs=44421)
               0.016196623 = queryNorm
             0.68433005 = fieldWeight in 625, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.3215704 = idf(docFreq=216, maxDocs=44421)
               0.0625 = fieldNorm(doc=625)
         0.038910903 = weight(abstract_txt:method in 625) [ClassicSimilarity], result of:
           0.038910903 = score(doc=625,freq=1.0), product of:
             0.13838658 = queryWeight, product of:
               1.8992063 = boost
               4.4988065 = idf(docFreq=1342, maxDocs=44421)
               0.016196623 = queryNorm
             0.2811754 = fieldWeight in 625, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4988065 = idf(docFreq=1342, maxDocs=44421)
               0.0625 = fieldNorm(doc=625)
         0.24591711 = weight(abstract_txt:walk in 625) [ClassicSimilarity], result of:
           0.24591711 = score(doc=625,freq=2.0), product of:
             0.32799345 = queryWeight, product of:
               2.3873281 = boost
               8.482592 = idf(docFreq=24, maxDocs=44421)
               0.016196623 = queryNorm
             0.74976224 = fieldWeight in 625, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.482592 = idf(docFreq=24, maxDocs=44421)
               0.0625 = fieldNorm(doc=625)
         0.16835657 = weight(abstract_txt:random in 625) [ClassicSimilarity], result of:
           0.16835657 = score(doc=625,freq=2.0), product of:
             0.2916463 = queryWeight, product of:
               2.7571056 = boost
               6.5309834 = idf(docFreq=175, maxDocs=44421)
               0.016196623 = queryNorm
             0.5772628 = fieldWeight in 625, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.5309834 = idf(docFreq=175, maxDocs=44421)
               0.0625 = fieldNorm(doc=625)
       0.32 = coord(8/25)