Document (#39973)

Author
Cai, F.
Rijke, M. de
Title
Learning from homologous queries and semantically related terms for query auto completion
Source
Information processing and management. 52(2016) no.4, S.628-643
Year
2016
Abstract
Query auto completion (QAC) models recommend possible queries to web search users when they start typing a query prefix. Most of today's QAC models rank candidate queries by popularity (i.e., frequency), and in doing so they tend to follow a strict query matching policy when counting the queries. That is, they ignore the contributions from so-called homologous queries, queries with the same terms but ordered differently or queries that expand the original query. Importantly, homologous queries often express a remarkably similar search intent. Moreover, today's QAC approaches often ignore semantically related terms. We argue that users are prone to combine semantically related terms when generating queries. We propose a learning to rank-based QAC approach, where, for the first time, features derived from homologous queries and semantically related terms are introduced. In particular, we consider: (i) the observed and predicted popularity of homologous queries for a query candidate; and (ii) the semantic relatedness of pairs of terms inside a query and pairs of queries inside a session. We quantify the improvement of the proposed new features using two large-scale real-world query logs and show that the mean reciprocal rank and the success rate can be improved by up to 9% over state-of-the-art QAC models.
Content
Vgl.: http://www.sciencedirect.com/science/article/pii/S0306457315001454.
Theme
Semantisches Umfeld in Indexierung u. Retrieval

Similar documents (author)

  1. De Rijke, M. -> Rijke, M. de: 4.60
    4.5964546 = sum of:
      4.5964546 = weight(author_txt:rijke in 117) [ClassicSimilarity], result of:
        4.5964546 = fieldWeight in 117, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.667158 = idf(docFreq=19, maxDocs=42740)
          0.375 = fieldNorm(doc=117)
    
  2. Li, X.; Rijke, M.de: Characterizing and predicting downloads in academic search (2019) 4.33
    4.333579 = sum of:
      4.333579 = weight(author_txt:rijke in 1104) [ClassicSimilarity], result of:
        4.333579 = fieldWeight in 1104, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.667158 = idf(docFreq=19, maxDocs=42740)
          0.5 = fieldNorm(doc=1104)
    
  3. DeRijke, M. -> Rijke, M. de: 3.79
    3.7918816 = sum of:
      3.7918816 = weight(author_txt:rijke in 117) [ClassicSimilarity], result of:
        3.7918816 = fieldWeight in 117, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.667158 = idf(docFreq=19, maxDocs=42740)
          0.4375 = fieldNorm(doc=117)
    
  4. Meij, E.; Rijke, M. de: Thesaurus-based feedback to support mixed search and browsing environments (2007) 3.79
    3.7918816 = sum of:
      3.7918816 = weight(author_txt:rijke in 4433) [ClassicSimilarity], result of:
        3.7918816 = fieldWeight in 4433, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.667158 = idf(docFreq=19, maxDocs=42740)
          0.4375 = fieldNorm(doc=4433)
    
  5. Kamps, J.; Rijke, M. de; Sigurbjörnsson, B.: Length normalization in XML retrieval (2004) 3.25
    3.2501843 = sum of:
      3.2501843 = weight(author_txt:rijke in 107) [ClassicSimilarity], result of:
        3.2501843 = fieldWeight in 107, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.667158 = idf(docFreq=19, maxDocs=42740)
          0.375 = fieldNorm(doc=107)
    

Similar documents (content)

  1. Sarigil, E.; Sengor Altingovde, I.; Blanco, R.; Barla Cambazoglu, B.; Ozcan, R.; Ulusoy, Ö.: Characterizing, predicting, and handling web search queries that match very few or no results (2018) 0.27
    0.26626202 = sum of:
      0.26626202 = product of:
        0.8320688 = sum of:
          0.020418536 = weight(abstract_txt:features in 40) [ClassicSimilarity], result of:
            0.020418536 = score(doc=40,freq=1.0), product of:
              0.07161197 = queryWeight, product of:
                1.0644236 = boost
                4.5620384 = idf(docFreq=1212, maxDocs=42740)
                0.014747289 = queryNorm
              0.2851274 = fieldWeight in 40, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5620384 = idf(docFreq=1212, maxDocs=42740)
                0.0625 = fieldNorm(doc=40)
          0.015626349 = weight(abstract_txt:that in 40) [ClassicSimilarity], result of:
            0.015626349 = score(doc=40,freq=7.0), product of:
              0.039462525 = queryWeight, product of:
                1.1174526 = boost
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.014747289 = queryNorm
              0.39597943 = fieldWeight in 40, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.0625 = fieldNorm(doc=40)
          0.02389465 = weight(abstract_txt:learning in 40) [ClassicSimilarity], result of:
            0.02389465 = score(doc=40,freq=1.0), product of:
              0.07952488 = queryWeight, product of:
                1.1216909 = boost
                4.807482 = idf(docFreq=948, maxDocs=42740)
                0.014747289 = queryNorm
              0.3004676 = fieldWeight in 40, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.807482 = idf(docFreq=948, maxDocs=42740)
                0.0625 = fieldNorm(doc=40)
          0.057718933 = weight(abstract_txt:models in 40) [ClassicSimilarity], result of:
            0.057718933 = score(doc=40,freq=3.0), product of:
              0.113633074 = queryWeight, product of:
                1.6421759 = boost
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.014747289 = queryNorm
              0.5079413 = fieldWeight in 40, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.0625 = fieldNorm(doc=40)
          0.032755446 = weight(abstract_txt:related in 40) [ClassicSimilarity], result of:
            0.032755446 = score(doc=40,freq=1.0), product of:
              0.12364263 = queryWeight, product of:
                1.977975 = boost
                4.238725 = idf(docFreq=1675, maxDocs=42740)
                0.014747289 = queryNorm
              0.26492032 = fieldWeight in 40, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.238725 = idf(docFreq=1675, maxDocs=42740)
                0.0625 = fieldNorm(doc=40)
          0.06106029 = weight(abstract_txt:terms in 40) [ClassicSimilarity], result of:
            0.06106029 = score(doc=40,freq=2.0), product of:
              0.17015272 = queryWeight, product of:
                2.8418539 = boost
                4.05999 = idf(docFreq=2003, maxDocs=42740)
                0.014747289 = queryNorm
              0.35885578 = fieldWeight in 40, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.05999 = idf(docFreq=2003, maxDocs=42740)
                0.0625 = fieldNorm(doc=40)
          0.20398821 = weight(abstract_txt:query in 40) [ClassicSimilarity], result of:
            0.20398821 = score(doc=40,freq=5.0), product of:
              0.30836797 = queryWeight, product of:
                4.417599 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.014747289 = queryNorm
              0.6615091 = fieldWeight in 40, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.0625 = fieldNorm(doc=40)
          0.41660634 = weight(abstract_txt:queries in 40) [ClassicSimilarity], result of:
            0.41660634 = score(doc=40,freq=6.0), product of:
              0.53471184 = queryWeight, product of:
                7.124546 = boost
                5.0892105 = idf(docFreq=715, maxDocs=42740)
                0.014747289 = queryNorm
              0.77912307 = fieldWeight in 40, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.0892105 = idf(docFreq=715, maxDocs=42740)
                0.0625 = fieldNorm(doc=40)
        0.32 = coord(8/25)
    
  2. Brandão, W.C.; Santos, R.L.T.; Ziviani, N.; Moura, E.S. de; Silva, A.S. da: Learning to expand queries using entities (2014) 0.23
    0.22786914 = sum of:
      0.22786914 = product of:
        0.7120911 = sum of:
          0.020418536 = weight(abstract_txt:features in 3344) [ClassicSimilarity], result of:
            0.020418536 = score(doc=3344,freq=1.0), product of:
              0.07161197 = queryWeight, product of:
                1.0644236 = boost
                4.5620384 = idf(docFreq=1212, maxDocs=42740)
                0.014747289 = queryNorm
              0.2851274 = fieldWeight in 3344, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5620384 = idf(docFreq=1212, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
          0.0083526345 = weight(abstract_txt:that in 3344) [ClassicSimilarity], result of:
            0.0083526345 = score(doc=3344,freq=2.0), product of:
              0.039462525 = queryWeight, product of:
                1.1174526 = boost
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.014747289 = queryNorm
              0.21165991 = fieldWeight in 3344, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
          0.033792138 = weight(abstract_txt:learning in 3344) [ClassicSimilarity], result of:
            0.033792138 = score(doc=3344,freq=2.0), product of:
              0.07952488 = queryWeight, product of:
                1.1216909 = boost
                4.807482 = idf(docFreq=948, maxDocs=42740)
                0.014747289 = queryNorm
              0.42492536 = fieldWeight in 3344, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.807482 = idf(docFreq=948, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
          0.08387242 = weight(abstract_txt:candidate in 3344) [ClassicSimilarity], result of:
            0.08387242 = score(doc=3344,freq=1.0), product of:
              0.18367442 = queryWeight, product of:
                1.7046924 = boost
                7.306182 = idf(docFreq=77, maxDocs=42740)
                0.014747289 = queryNorm
              0.45663637 = fieldWeight in 3344, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.306182 = idf(docFreq=77, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
          0.08582877 = weight(abstract_txt:rank in 3344) [ClassicSimilarity], result of:
            0.08582877 = score(doc=3344,freq=1.0), product of:
              0.21351166 = queryWeight, product of:
                2.2510135 = boost
                6.431782 = idf(docFreq=186, maxDocs=42740)
                0.014747289 = queryNorm
              0.40198636 = fieldWeight in 3344, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.431782 = idf(docFreq=186, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
          0.10575953 = weight(abstract_txt:terms in 3344) [ClassicSimilarity], result of:
            0.10575953 = score(doc=3344,freq=6.0), product of:
              0.17015272 = queryWeight, product of:
                2.8418539 = boost
                4.05999 = idf(docFreq=2003, maxDocs=42740)
                0.014747289 = queryNorm
              0.6215565 = fieldWeight in 3344, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.05999 = idf(docFreq=2003, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
          0.20398821 = weight(abstract_txt:query in 3344) [ClassicSimilarity], result of:
            0.20398821 = score(doc=3344,freq=5.0), product of:
              0.30836797 = queryWeight, product of:
                4.417599 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.014747289 = queryNorm
              0.6615091 = fieldWeight in 3344, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
          0.17007881 = weight(abstract_txt:queries in 3344) [ClassicSimilarity], result of:
            0.17007881 = score(doc=3344,freq=1.0), product of:
              0.53471184 = queryWeight, product of:
                7.124546 = boost
                5.0892105 = idf(docFreq=715, maxDocs=42740)
                0.014747289 = queryNorm
              0.31807566 = fieldWeight in 3344, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0892105 = idf(docFreq=715, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
        0.32 = coord(8/25)
    
  3. Evens, M.: Thesaural relations in information retrieval (2002) 0.21
    0.20861886 = sum of:
      0.20861886 = product of:
        0.74506736 = sum of:
          0.008859307 = weight(abstract_txt:that in 2202) [ClassicSimilarity], result of:
            0.008859307 = score(doc=2202,freq=1.0), product of:
              0.039462525 = queryWeight, product of:
                1.1174526 = boost
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.014747289 = queryNorm
              0.22449924 = fieldWeight in 2202, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.09375 = fieldNorm(doc=2202)
          0.036247794 = weight(abstract_txt:often in 2202) [ClassicSimilarity], result of:
            0.036247794 = score(doc=2202,freq=1.0), product of:
              0.08012403 = queryWeight, product of:
                1.1259084 = boost
                4.8255577 = idf(docFreq=931, maxDocs=42740)
                0.014747289 = queryNorm
              0.45239604 = fieldWeight in 2202, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.8255577 = idf(docFreq=931, maxDocs=42740)
                0.09375 = fieldNorm(doc=2202)
          0.026169436 = weight(abstract_txt:they in 2202) [ClassicSimilarity], result of:
            0.026169436 = score(doc=2202,freq=1.0), product of:
              0.07381337 = queryWeight, product of:
                1.3235332 = boost
                3.7817082 = idf(docFreq=2646, maxDocs=42740)
                0.014747289 = queryNorm
              0.35453516 = fieldWeight in 2202, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7817082 = idf(docFreq=2646, maxDocs=42740)
                0.09375 = fieldNorm(doc=2202)
          0.06948479 = weight(abstract_txt:related in 2202) [ClassicSimilarity], result of:
            0.06948479 = score(doc=2202,freq=2.0), product of:
              0.12364263 = queryWeight, product of:
                1.977975 = boost
                4.238725 = idf(docFreq=1675, maxDocs=42740)
                0.014747289 = queryNorm
              0.56198084 = fieldWeight in 2202, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.238725 = idf(docFreq=1675, maxDocs=42740)
                0.09375 = fieldNorm(doc=2202)
          0.11217492 = weight(abstract_txt:terms in 2202) [ClassicSimilarity], result of:
            0.11217492 = score(doc=2202,freq=3.0), product of:
              0.17015272 = queryWeight, product of:
                2.8418539 = boost
                4.05999 = idf(docFreq=2003, maxDocs=42740)
                0.014747289 = queryNorm
              0.6592602 = fieldWeight in 2202, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.05999 = idf(docFreq=2003, maxDocs=42740)
                0.09375 = fieldNorm(doc=2202)
          0.23701286 = weight(abstract_txt:query in 2202) [ClassicSimilarity], result of:
            0.23701286 = score(doc=2202,freq=3.0), product of:
              0.30836797 = queryWeight, product of:
                4.417599 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.014747289 = queryNorm
              0.76860404 = fieldWeight in 2202, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.09375 = fieldNorm(doc=2202)
          0.25511822 = weight(abstract_txt:queries in 2202) [ClassicSimilarity], result of:
            0.25511822 = score(doc=2202,freq=1.0), product of:
              0.53471184 = queryWeight, product of:
                7.124546 = boost
                5.0892105 = idf(docFreq=715, maxDocs=42740)
                0.014747289 = queryNorm
              0.4771135 = fieldWeight in 2202, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0892105 = idf(docFreq=715, maxDocs=42740)
                0.09375 = fieldNorm(doc=2202)
        0.28 = coord(7/25)
    
  4. Aula, A.; Nordhausen, K.: Modeling successful performance in Web searching (2006) 0.21
    0.20792031 = sum of:
      0.20792031 = product of:
        0.74257255 = sum of:
          0.0059062047 = weight(abstract_txt:that in 1118) [ClassicSimilarity], result of:
            0.0059062047 = score(doc=1118,freq=1.0), product of:
              0.039462525 = queryWeight, product of:
                1.1174526 = boost
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.014747289 = queryNorm
              0.14966616 = fieldWeight in 1118, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.0625 = fieldNorm(doc=1118)
          0.03332404 = weight(abstract_txt:models in 1118) [ClassicSimilarity], result of:
            0.03332404 = score(doc=1118,freq=1.0), product of:
              0.113633074 = queryWeight, product of:
                1.6421759 = boost
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.014747289 = queryNorm
              0.29326004 = fieldWeight in 1118, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.0625 = fieldNorm(doc=1118)
          0.09648907 = weight(abstract_txt:completion in 1118) [ClassicSimilarity], result of:
            0.09648907 = score(doc=1118,freq=1.0), product of:
              0.20166072 = queryWeight, product of:
                1.7862092 = boost
                7.655557 = idf(docFreq=54, maxDocs=42740)
                0.014747289 = queryNorm
              0.47847232 = fieldWeight in 1118, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.655557 = idf(docFreq=54, maxDocs=42740)
                0.0625 = fieldNorm(doc=1118)
          0.06551089 = weight(abstract_txt:related in 1118) [ClassicSimilarity], result of:
            0.06551089 = score(doc=1118,freq=4.0), product of:
              0.12364263 = queryWeight, product of:
                1.977975 = boost
                4.238725 = idf(docFreq=1675, maxDocs=42740)
                0.014747289 = queryNorm
              0.52984065 = fieldWeight in 1118, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.238725 = idf(docFreq=1675, maxDocs=42740)
                0.0625 = fieldNorm(doc=1118)
          0.043176148 = weight(abstract_txt:terms in 1118) [ClassicSimilarity], result of:
            0.043176148 = score(doc=1118,freq=1.0), product of:
              0.17015272 = queryWeight, product of:
                2.8418539 = boost
                4.05999 = idf(docFreq=2003, maxDocs=42740)
                0.014747289 = queryNorm
              0.25374937 = fieldWeight in 1118, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.05999 = idf(docFreq=2003, maxDocs=42740)
                0.0625 = fieldNorm(doc=1118)
          0.15800859 = weight(abstract_txt:query in 1118) [ClassicSimilarity], result of:
            0.15800859 = score(doc=1118,freq=3.0), product of:
              0.30836797 = queryWeight, product of:
                4.417599 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.014747289 = queryNorm
              0.5124027 = fieldWeight in 1118, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.0625 = fieldNorm(doc=1118)
          0.34015763 = weight(abstract_txt:queries in 1118) [ClassicSimilarity], result of:
            0.34015763 = score(doc=1118,freq=4.0), product of:
              0.53471184 = queryWeight, product of:
                7.124546 = boost
                5.0892105 = idf(docFreq=715, maxDocs=42740)
                0.014747289 = queryNorm
              0.6361513 = fieldWeight in 1118, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.0892105 = idf(docFreq=715, maxDocs=42740)
                0.0625 = fieldNorm(doc=1118)
        0.28 = coord(7/25)
    
  5. Negm, E.; AbdelRahman, S.; Bahgat, R.: PREFCA: a portal retrieval engine based on formal concept analysis (2017) 0.20
    0.20090297 = sum of:
      0.20090297 = product of:
        0.5022574 = sum of:
          0.012528952 = weight(abstract_txt:that in 5292) [ClassicSimilarity], result of:
            0.012528952 = score(doc=5292,freq=8.0), product of:
              0.039462525 = queryWeight, product of:
                1.1174526 = boost
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.014747289 = queryNorm
              0.31748986 = fieldWeight in 5292, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.017920988 = weight(abstract_txt:learning in 5292) [ClassicSimilarity], result of:
            0.017920988 = score(doc=5292,freq=1.0), product of:
              0.07952488 = queryWeight, product of:
                1.1216909 = boost
                4.807482 = idf(docFreq=948, maxDocs=42740)
                0.014747289 = queryNorm
              0.22535071 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.807482 = idf(docFreq=948, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.013084718 = weight(abstract_txt:they in 5292) [ClassicSimilarity], result of:
            0.013084718 = score(doc=5292,freq=1.0), product of:
              0.07381337 = queryWeight, product of:
                1.3235332 = boost
                3.7817082 = idf(docFreq=2646, maxDocs=42740)
                0.014747289 = queryNorm
              0.17726758 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7817082 = idf(docFreq=2646, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.051674247 = weight(abstract_txt:pairs in 5292) [ClassicSimilarity], result of:
            0.051674247 = score(doc=5292,freq=1.0), product of:
              0.1611058 = queryWeight, product of:
                1.5965307 = boost
                6.842609 = idf(docFreq=123, maxDocs=42740)
                0.014747289 = queryNorm
              0.3207473 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.842609 = idf(docFreq=123, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.07957361 = weight(abstract_txt:ignore in 5292) [ClassicSimilarity], result of:
            0.07957361 = score(doc=5292,freq=1.0), product of:
              0.21483636 = queryWeight, product of:
                1.8436376 = boost
                7.9016905 = idf(docFreq=42, maxDocs=42740)
                0.014747289 = queryNorm
              0.37039173 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.9016905 = idf(docFreq=42, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.034742396 = weight(abstract_txt:related in 5292) [ClassicSimilarity], result of:
            0.034742396 = score(doc=5292,freq=2.0), product of:
              0.12364263 = queryWeight, product of:
                1.977975 = boost
                4.238725 = idf(docFreq=1675, maxDocs=42740)
                0.014747289 = queryNorm
              0.28099042 = fieldWeight in 5292, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.238725 = idf(docFreq=1675, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.06437158 = weight(abstract_txt:rank in 5292) [ClassicSimilarity], result of:
            0.06437158 = score(doc=5292,freq=1.0), product of:
              0.21351166 = queryWeight, product of:
                2.2510135 = boost
                6.431782 = idf(docFreq=186, maxDocs=42740)
                0.014747289 = queryNorm
              0.30148977 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.431782 = idf(docFreq=186, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.03238211 = weight(abstract_txt:terms in 5292) [ClassicSimilarity], result of:
            0.03238211 = score(doc=5292,freq=1.0), product of:
              0.17015272 = queryWeight, product of:
                2.8418539 = boost
                4.05999 = idf(docFreq=2003, maxDocs=42740)
                0.014747289 = queryNorm
              0.19031203 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.05999 = idf(docFreq=2003, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.068419725 = weight(abstract_txt:query in 5292) [ClassicSimilarity], result of:
            0.068419725 = score(doc=5292,freq=1.0), product of:
              0.30836797 = queryWeight, product of:
                4.417599 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.014747289 = queryNorm
              0.22187689 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.12755911 = weight(abstract_txt:queries in 5292) [ClassicSimilarity], result of:
            0.12755911 = score(doc=5292,freq=1.0), product of:
              0.53471184 = queryWeight, product of:
                7.124546 = boost
                5.0892105 = idf(docFreq=715, maxDocs=42740)
                0.014747289 = queryNorm
              0.23855674 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0892105 = idf(docFreq=715, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
        0.4 = coord(10/25)