Document (#39154)

Author
Yan, X.
Li, X.
Song, D.
Title
¬A correlation analysis on LSA and HAL semantic space models
Source
Computational and information science. First International Symposium, CIS 2004, Shanghai, China, December 16-18, 2004. Proceedings. Eds.: J. Zhang et al
Imprint
Berlin : Springer
Year
2004
Pages
S.711-717
Series
Lecture notes in computer science; vol. 3314
Abstract
In this paper, we compare a well-known semantic spacemodel, Latent Semantic Analysis (LSA) with another model, Hyperspace Analogue to Language (HAL) which is widely used in different area, especially in automatic query refinement. We conduct this comparative analysis to prove our hypothesis that with respect to ability of extracting the lexical information from a corpus of text, LSA is quite similar to HAL. We regard HAL and LSA as black boxes. Through a Pearson's correlation analysis to the outputs of these two black boxes, we conclude that LSA highly co-relates with HAL and thus there is a justification that LSA and HAL can potentially play a similar role in the area of facilitating automatic query refinement. This paper evaluates LSA in a new application area and contributes an effective way to compare different semantic space models.
Theme
Semantisches Umfeld in Indexierung u. Retrieval
Object
Hypertspace Analogue to Language
Latent Semantic Analysis

Similar documents (author)

  1. Song, F.W.: Virtual communities : bowling alone, online together (2009) 5.09
    5.085331 = sum of:
      5.085331 = weight(author_txt:song in 288) [ClassicSimilarity], result of:
        5.085331 = fieldWeight in 288, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.13653 = idf(docFreq=33, maxDocs=42740)
          0.625 = fieldNorm(doc=288)
    
  2. Song, S.-f.: Rethinking of the development of reference service (1997) 4.07
    4.068265 = sum of:
      4.068265 = weight(author_txt:song in 860) [ClassicSimilarity], result of:
        4.068265 = fieldWeight in 860, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.13653 = idf(docFreq=33, maxDocs=42740)
          0.5 = fieldNorm(doc=860)
    
  3. Song, D.; Bruza, P.D.: Towards context sensitive information inference (2003) 4.07
    4.068265 = sum of:
      4.068265 = weight(author_txt:song in 2429) [ClassicSimilarity], result of:
        4.068265 = fieldWeight in 2429, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.13653 = idf(docFreq=33, maxDocs=42740)
          0.5 = fieldNorm(doc=2429)
    
  4. Song, Y.-S.: International business students : a study on their use of electronic library services (2004) 4.07
    4.068265 = sum of:
      4.068265 = weight(author_txt:song in 2547) [ClassicSimilarity], result of:
        4.068265 = fieldWeight in 2547, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.13653 = idf(docFreq=33, maxDocs=42740)
          0.5 = fieldNorm(doc=2547)
    
  5. Lau, R.Y.K.; Bruza, P.D.; Song, D.: Belief revision for adaptive information retrieval (2004) 3.05
    3.0511987 = sum of:
      3.0511987 = weight(author_txt:song in 78) [ClassicSimilarity], result of:
        3.0511987 = fieldWeight in 78, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.13653 = idf(docFreq=33, maxDocs=42740)
          0.375 = fieldNorm(doc=78)
    

Similar documents (content)

  1. Lochbaum, K.E.; Streeter, A.R.: Comparing and combining the effectiveness of latent semantic indexing and the ordinary vector space model for information retrieval (1989) 0.18
    0.18176198 = sum of:
      0.18176198 = product of:
        0.5048944 = sum of:
          0.008689931 = weight(abstract_txt:that in 4459) [ClassicSimilarity], result of:
            0.008689931 = score(doc=4459,freq=1.0), product of:
              0.046449672 = queryWeight, product of:
                1.0149837 = boost
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.01911085 = queryNorm
              0.18708271 = fieldWeight in 4459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.078125 = fieldNorm(doc=4459)
          0.009226855 = weight(abstract_txt:this in 4459) [ClassicSimilarity], result of:
            0.009226855 = score(doc=4459,freq=1.0), product of:
              0.048343815 = queryWeight, product of:
                1.0354716 = boost
                2.442996 = idf(docFreq=10095, maxDocs=42740)
                0.01911085 = queryNorm
              0.19085906 = fieldWeight in 4459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.442996 = idf(docFreq=10095, maxDocs=42740)
                0.078125 = fieldNorm(doc=4459)
          0.014281446 = weight(abstract_txt:with in 4459) [ClassicSimilarity], result of:
            0.014281446 = score(doc=4459,freq=2.0), product of:
              0.051342446 = queryWeight, product of:
                1.0671022 = boost
                2.5176222 = idf(docFreq=9369, maxDocs=42740)
                0.01911085 = queryNorm
              0.2781606 = fieldWeight in 4459, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.5176222 = idf(docFreq=9369, maxDocs=42740)
                0.078125 = fieldNorm(doc=4459)
          0.044741087 = weight(abstract_txt:query in 4459) [ClassicSimilarity], result of:
            0.044741087 = score(doc=4459,freq=1.0), product of:
              0.12098895 = queryWeight, product of:
                1.3375036 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.01911085 = queryNorm
              0.36979482 = fieldWeight in 4459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.078125 = fieldNorm(doc=4459)
          0.059315667 = weight(abstract_txt:automatic in 4459) [ClassicSimilarity], result of:
            0.059315667 = score(doc=4459,freq=1.0), product of:
              0.1460117 = queryWeight, product of:
                1.4693184 = boost
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.01911085 = queryNorm
              0.40623915 = fieldWeight in 4459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.078125 = fieldNorm(doc=4459)
          0.06074399 = weight(abstract_txt:similar in 4459) [ClassicSimilarity], result of:
            0.06074399 = score(doc=4459,freq=1.0), product of:
              0.14834636 = queryWeight, product of:
                1.4810188 = boost
                5.241268 = idf(docFreq=614, maxDocs=42740)
                0.01911085 = queryNorm
              0.40947407 = fieldWeight in 4459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.241268 = idf(docFreq=614, maxDocs=42740)
                0.078125 = fieldNorm(doc=4459)
          0.13254556 = weight(abstract_txt:space in 4459) [ClassicSimilarity], result of:
            0.13254556 = score(doc=4459,freq=4.0), product of:
              0.1572165 = queryWeight, product of:
                1.5246536 = boost
                5.39569 = idf(docFreq=526, maxDocs=42740)
                0.01911085 = queryNorm
              0.8430766 = fieldWeight in 4459, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.39569 = idf(docFreq=526, maxDocs=42740)
                0.078125 = fieldNorm(doc=4459)
          0.04233731 = weight(abstract_txt:analysis in 4459) [ClassicSimilarity], result of:
            0.04233731 = score(doc=4459,freq=1.0), product of:
              0.14692652 = queryWeight, product of:
                2.0844295 = boost
                3.6883576 = idf(docFreq=2905, maxDocs=42740)
                0.01911085 = queryNorm
              0.28815293 = fieldWeight in 4459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6883576 = idf(docFreq=2905, maxDocs=42740)
                0.078125 = fieldNorm(doc=4459)
          0.13301252 = weight(abstract_txt:semantic in 4459) [ClassicSimilarity], result of:
            0.13301252 = score(doc=4459,freq=3.0), product of:
              0.21852742 = queryWeight, product of:
                2.542085 = boost
                4.4981704 = idf(docFreq=1292, maxDocs=42740)
                0.01911085 = queryNorm
              0.60867655 = fieldWeight in 4459, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.4981704 = idf(docFreq=1292, maxDocs=42740)
                0.078125 = fieldNorm(doc=4459)
        0.36 = coord(9/25)
    
  2. Lund, K.; Burgess, C.: Producing high-dimensional semantic spaces from lexical co-occurrence (1996) 0.15
    0.15221657 = sum of:
      0.15221657 = product of:
        0.5436306 = sum of:
          0.012289417 = weight(abstract_txt:that in 3705) [ClassicSimilarity], result of:
            0.012289417 = score(doc=3705,freq=2.0), product of:
              0.046449672 = queryWeight, product of:
                1.0149837 = boost
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.01911085 = queryNorm
              0.2645749 = fieldWeight in 3705, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.078125 = fieldNorm(doc=3705)
          0.009226855 = weight(abstract_txt:this in 3705) [ClassicSimilarity], result of:
            0.009226855 = score(doc=3705,freq=1.0), product of:
              0.048343815 = queryWeight, product of:
                1.0354716 = boost
                2.442996 = idf(docFreq=10095, maxDocs=42740)
                0.01911085 = queryNorm
              0.19085906 = fieldWeight in 3705, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.442996 = idf(docFreq=10095, maxDocs=42740)
                0.078125 = fieldNorm(doc=3705)
          0.010098507 = weight(abstract_txt:with in 3705) [ClassicSimilarity], result of:
            0.010098507 = score(doc=3705,freq=1.0), product of:
              0.051342446 = queryWeight, product of:
                1.0671022 = boost
                2.5176222 = idf(docFreq=9369, maxDocs=42740)
                0.01911085 = queryNorm
              0.19668923 = fieldWeight in 3705, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.5176222 = idf(docFreq=9369, maxDocs=42740)
                0.078125 = fieldNorm(doc=3705)
          0.15147388 = weight(abstract_txt:analogue in 3705) [ClassicSimilarity], result of:
            0.15147388 = score(doc=3705,freq=1.0), product of:
              0.21651593 = queryWeight, product of:
                1.2651792 = boost
                8.954841 = idf(docFreq=14, maxDocs=42740)
                0.01911085 = queryNorm
              0.69959694 = fieldWeight in 3705, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.954841 = idf(docFreq=14, maxDocs=42740)
                0.078125 = fieldNorm(doc=3705)
          0.18566488 = weight(abstract_txt:hyperspace in 3705) [ClassicSimilarity], result of:
            0.18566488 = score(doc=3705,freq=1.0), product of:
              0.24798068 = queryWeight, product of:
                1.3539917 = boost
                9.583449 = idf(docFreq=7, maxDocs=42740)
                0.01911085 = queryNorm
              0.748707 = fieldWeight in 3705, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.583449 = idf(docFreq=7, maxDocs=42740)
                0.078125 = fieldNorm(doc=3705)
          0.06627278 = weight(abstract_txt:space in 3705) [ClassicSimilarity], result of:
            0.06627278 = score(doc=3705,freq=1.0), product of:
              0.1572165 = queryWeight, product of:
                1.5246536 = boost
                5.39569 = idf(docFreq=526, maxDocs=42740)
                0.01911085 = queryNorm
              0.4215383 = fieldWeight in 3705, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.39569 = idf(docFreq=526, maxDocs=42740)
                0.078125 = fieldNorm(doc=3705)
          0.10860426 = weight(abstract_txt:semantic in 3705) [ClassicSimilarity], result of:
            0.10860426 = score(doc=3705,freq=2.0), product of:
              0.21852742 = queryWeight, product of:
                2.542085 = boost
                4.4981704 = idf(docFreq=1292, maxDocs=42740)
                0.01911085 = queryNorm
              0.4969823 = fieldWeight in 3705, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4981704 = idf(docFreq=1292, maxDocs=42740)
                0.078125 = fieldNorm(doc=3705)
        0.28 = coord(7/25)
    
  3. Chung, Y.M.; Lee, J.Y.: ¬A corpus-based approach to comparative evaluation of statistical term association measures (2001) 0.15
    0.14867403 = sum of:
      0.14867403 = product of:
        0.46460634 = sum of:
          0.0073814844 = weight(abstract_txt:this in 685) [ClassicSimilarity], result of:
            0.0073814844 = score(doc=685,freq=1.0), product of:
              0.048343815 = queryWeight, product of:
                1.0354716 = boost
                2.442996 = idf(docFreq=10095, maxDocs=42740)
                0.01911085 = queryNorm
              0.15268725 = fieldWeight in 685, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.442996 = idf(docFreq=10095, maxDocs=42740)
                0.0625 = fieldNorm(doc=685)
          0.008078805 = weight(abstract_txt:with in 685) [ClassicSimilarity], result of:
            0.008078805 = score(doc=685,freq=1.0), product of:
              0.051342446 = queryWeight, product of:
                1.0671022 = boost
                2.5176222 = idf(docFreq=9369, maxDocs=42740)
                0.01911085 = queryNorm
              0.15735139 = fieldWeight in 685, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.5176222 = idf(docFreq=9369, maxDocs=42740)
                0.0625 = fieldNorm(doc=685)
          0.12708186 = weight(abstract_txt:pearson's in 685) [ClassicSimilarity], result of:
            0.12708186 = score(doc=685,freq=1.0), product of:
              0.22349119 = queryWeight, product of:
                1.285397 = boost
                9.097941 = idf(docFreq=12, maxDocs=42740)
                0.01911085 = queryNorm
              0.56862134 = fieldWeight in 685, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.097941 = idf(docFreq=12, maxDocs=42740)
                0.0625 = fieldNorm(doc=685)
          0.03579287 = weight(abstract_txt:query in 685) [ClassicSimilarity], result of:
            0.03579287 = score(doc=685,freq=1.0), product of:
              0.12098895 = queryWeight, product of:
                1.3375036 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.01911085 = queryNorm
              0.29583585 = fieldWeight in 685, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.0625 = fieldNorm(doc=685)
          0.04745253 = weight(abstract_txt:automatic in 685) [ClassicSimilarity], result of:
            0.04745253 = score(doc=685,freq=1.0), product of:
              0.1460117 = queryWeight, product of:
                1.4693184 = boost
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.01911085 = queryNorm
              0.32499132 = fieldWeight in 685, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.0625 = fieldNorm(doc=685)
          0.06872398 = weight(abstract_txt:similar in 685) [ClassicSimilarity], result of:
            0.06872398 = score(doc=685,freq=2.0), product of:
              0.14834636 = queryWeight, product of:
                1.4810188 = boost
                5.241268 = idf(docFreq=614, maxDocs=42740)
                0.01911085 = queryNorm
              0.46326703 = fieldWeight in 685, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.241268 = idf(docFreq=614, maxDocs=42740)
                0.0625 = fieldNorm(doc=685)
          0.12219562 = weight(abstract_txt:correlation in 685) [ClassicSimilarity], result of:
            0.12219562 = score(doc=685,freq=2.0), product of:
              0.21772508 = queryWeight, product of:
                1.7942226 = boost
                6.3496847 = idf(docFreq=202, maxDocs=42740)
                0.01911085 = queryNorm
              0.5612381 = fieldWeight in 685, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.3496847 = idf(docFreq=202, maxDocs=42740)
                0.0625 = fieldNorm(doc=685)
          0.047899194 = weight(abstract_txt:analysis in 685) [ClassicSimilarity], result of:
            0.047899194 = score(doc=685,freq=2.0), product of:
              0.14692652 = queryWeight, product of:
                2.0844295 = boost
                3.6883576 = idf(docFreq=2905, maxDocs=42740)
                0.01911085 = queryNorm
              0.3260078 = fieldWeight in 685, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6883576 = idf(docFreq=2905, maxDocs=42740)
                0.0625 = fieldNorm(doc=685)
        0.32 = coord(8/25)
    
  4. Ju, B.; Stewart, B.: "The right information" : perceptions of information bias among Black Wikipedians (2019) 0.15
    0.14761284 = sum of:
      0.14761284 = product of:
        0.61505353 = sum of:
          0.006951944 = weight(abstract_txt:that in 1478) [ClassicSimilarity], result of:
            0.006951944 = score(doc=1478,freq=1.0), product of:
              0.046449672 = queryWeight, product of:
                1.0149837 = boost
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.01911085 = queryNorm
              0.14966616 = fieldWeight in 1478, 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=1478)
          0.012785106 = weight(abstract_txt:this in 1478) [ClassicSimilarity], result of:
            0.012785106 = score(doc=1478,freq=3.0), product of:
              0.048343815 = queryWeight, product of:
                1.0354716 = boost
                2.442996 = idf(docFreq=10095, maxDocs=42740)
                0.01911085 = queryNorm
              0.26446208 = fieldWeight in 1478, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.442996 = idf(docFreq=10095, maxDocs=42740)
                0.0625 = fieldNorm(doc=1478)
          0.008078805 = weight(abstract_txt:with in 1478) [ClassicSimilarity], result of:
            0.008078805 = score(doc=1478,freq=1.0), product of:
              0.051342446 = queryWeight, product of:
                1.0671022 = boost
                2.5176222 = idf(docFreq=9369, maxDocs=42740)
                0.01911085 = queryNorm
              0.15735139 = fieldWeight in 1478, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.5176222 = idf(docFreq=9369, maxDocs=42740)
                0.0625 = fieldNorm(doc=1478)
          0.05301822 = weight(abstract_txt:space in 1478) [ClassicSimilarity], result of:
            0.05301822 = score(doc=1478,freq=1.0), product of:
              0.1572165 = queryWeight, product of:
                1.5246536 = boost
                5.39569 = idf(docFreq=526, maxDocs=42740)
                0.01911085 = queryNorm
              0.33723062 = fieldWeight in 1478, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.39569 = idf(docFreq=526, maxDocs=42740)
                0.0625 = fieldNorm(doc=1478)
          0.047899194 = weight(abstract_txt:analysis in 1478) [ClassicSimilarity], result of:
            0.047899194 = score(doc=1478,freq=2.0), product of:
              0.14692652 = queryWeight, product of:
                2.0844295 = boost
                3.6883576 = idf(docFreq=2905, maxDocs=42740)
                0.01911085 = queryNorm
              0.3260078 = fieldWeight in 1478, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6883576 = idf(docFreq=2905, maxDocs=42740)
                0.0625 = fieldNorm(doc=1478)
          0.48632026 = weight(abstract_txt:black in 1478) [ClassicSimilarity], result of:
            0.48632026 = score(doc=1478,freq=7.0), product of:
              0.3601336 = queryWeight, product of:
                2.3075647 = boost
                8.166383 = idf(docFreq=32, maxDocs=42740)
                0.01911085 = queryNorm
              1.3503885 = fieldWeight in 1478, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                8.166383 = idf(docFreq=32, maxDocs=42740)
                0.0625 = fieldNorm(doc=1478)
        0.24 = coord(6/25)
    
  5. Fernández, M.; Cantador, I.; López, V.; Vallet, D.; Castells, P.; Motta, E.: Semantically enhanced Information Retrieval : an ontology-based approach (2011) 0.13
    0.13493967 = sum of:
      0.13493967 = product of:
        0.3748324 = sum of:
          0.008602592 = weight(abstract_txt:that in 2231) [ClassicSimilarity], result of:
            0.008602592 = score(doc=2231,freq=2.0), product of:
              0.046449672 = queryWeight, product of:
                1.0149837 = boost
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.01911085 = queryNorm
              0.18520242 = fieldWeight in 2231, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.3946586 = idf(docFreq=10595, maxDocs=42740)
                0.0546875 = fieldNorm(doc=2231)
          0.011186968 = weight(abstract_txt:this in 2231) [ClassicSimilarity], result of:
            0.011186968 = score(doc=2231,freq=3.0), product of:
              0.048343815 = queryWeight, product of:
                1.0354716 = boost
                2.442996 = idf(docFreq=10095, maxDocs=42740)
                0.01911085 = queryNorm
              0.23140432 = fieldWeight in 2231, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.442996 = idf(docFreq=10095, maxDocs=42740)
                0.0546875 = fieldNorm(doc=2231)
          0.007068955 = weight(abstract_txt:with in 2231) [ClassicSimilarity], result of:
            0.007068955 = score(doc=2231,freq=1.0), product of:
              0.051342446 = queryWeight, product of:
                1.0671022 = boost
                2.5176222 = idf(docFreq=9369, maxDocs=42740)
                0.01911085 = queryNorm
              0.13768247 = fieldWeight in 2231, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.5176222 = idf(docFreq=9369, maxDocs=42740)
                0.0546875 = fieldNorm(doc=2231)
          0.030507796 = weight(abstract_txt:models in 2231) [ClassicSimilarity], result of:
            0.030507796 = score(doc=2231,freq=1.0), product of:
              0.118891254 = queryWeight, product of:
                1.3258581 = boost
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.01911085 = queryNorm
              0.25660253 = fieldWeight in 2231, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.0546875 = fieldNorm(doc=2231)
          0.031318758 = weight(abstract_txt:query in 2231) [ClassicSimilarity], result of:
            0.031318758 = score(doc=2231,freq=1.0), product of:
              0.12098895 = queryWeight, product of:
                1.3375036 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.01911085 = queryNorm
              0.25885636 = fieldWeight in 2231, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.0546875 = fieldNorm(doc=2231)
          0.041520968 = weight(abstract_txt:automatic in 2231) [ClassicSimilarity], result of:
            0.041520968 = score(doc=2231,freq=1.0), product of:
              0.1460117 = queryWeight, product of:
                1.4693184 = boost
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.01911085 = queryNorm
              0.2843674 = fieldWeight in 2231, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.0546875 = fieldNorm(doc=2231)
          0.04639094 = weight(abstract_txt:space in 2231) [ClassicSimilarity], result of:
            0.04639094 = score(doc=2231,freq=1.0), product of:
              0.1572165 = queryWeight, product of:
                1.5246536 = boost
                5.39569 = idf(docFreq=526, maxDocs=42740)
                0.01911085 = queryNorm
              0.2950768 = fieldWeight in 2231, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.39569 = idf(docFreq=526, maxDocs=42740)
                0.0546875 = fieldNorm(doc=2231)
          0.056009438 = weight(abstract_txt:area in 2231) [ClassicSimilarity], result of:
            0.056009438 = score(doc=2231,freq=1.0), product of:
              0.204055 = queryWeight, product of:
                2.1273618 = boost
                5.0191007 = idf(docFreq=767, maxDocs=42740)
                0.01911085 = queryNorm
              0.27448207 = fieldWeight in 2231, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0191007 = idf(docFreq=767, maxDocs=42740)
                0.0546875 = fieldNorm(doc=2231)
          0.14222598 = weight(abstract_txt:semantic in 2231) [ClassicSimilarity], result of:
            0.14222598 = score(doc=2231,freq=7.0), product of:
              0.21852742 = queryWeight, product of:
                2.542085 = boost
                4.4981704 = idf(docFreq=1292, maxDocs=42740)
                0.01911085 = queryNorm
              0.65083814 = fieldWeight in 2231, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.4981704 = idf(docFreq=1292, maxDocs=42740)
                0.0546875 = fieldNorm(doc=2231)
        0.36 = coord(9/25)