Document (#34434)

Author
Meij, E.
Rijke, M. de
Title
Thesaurus-based feedback to support mixed search and browsing environments
Source
Research and advanced technology for digital libraries : 11th European conference, ECDL 2007 / Budapest, Hungary, September 16-21, 2007, proceedings. Eds.: L. Kovacs et al
Imprint
Berlin : Springer
Year
2007
Pages
S.247-258
Series
Lecture notes in computer science ; vol. 4675
Abstract
We propose and evaluate a query expansion mechanism that supports searching and browsing in collections of annotated documents. Based on generative language models, our feedback mechanism uses document-level annotations to bias the generation of expansion terms and to generate browsing suggestions in the form of concepts selected from a controlled vocabulary (as typically used in digital library settings). We provide a detailed formalization of our feedback mechanism and evaluate its effectiveness using the TREC 2006 Genomics track test set. As to the retrieval effectiveness, we find a 20% improvement in mean average precision over a query-likelihood baseline, whilst increasing precision at 10. When we base the parameter estimation and feedback generation of our algorithm on a large corpus, we also find an improvement over state-of-the-art relevance models. The browsing suggestions are assessed along two dimensions: relevancy and specifity. We present an account of per-topic results, which helps understand for what type of queries our feedback mechanism is particularly helpful.
Theme
Semantisches Umfeld in Indexierung u. Retrieval

Similar documents (author)

  1. He, J.; Meij, E.; Rijke, M. de: Result diversification based on query-specific cluster ranking (2011) 4.78
    4.780295 = sum of:
      4.780295 = sum of:
        2.1155293 = weight(author_txt:rijke in 1356) [ClassicSimilarity], result of:
          2.1155293 = score(doc=1356,freq=1.0), product of:
            0.6508952 = queryWeight, product of:
              8.667158 = idf(docFreq=19, maxDocs=42740)
              0.07509903 = queryNorm
            3.2501843 = fieldWeight in 1356, 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=1356)
        2.6647656 = weight(author_txt:meij in 1356) [ClassicSimilarity], result of:
          2.6647656 = score(doc=1356,freq=1.0), product of:
            0.7591677 = queryWeight, product of:
              1.079974 = boost
              9.360306 = idf(docFreq=9, maxDocs=42740)
              0.07509903 = queryNorm
            3.5101147 = fieldWeight in 1356, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.360306 = idf(docFreq=9, maxDocs=42740)
              0.375 = fieldNorm(doc=1356)
    
  2. Meij, E.; Trieschnigg, D.; Rijke, M. de; Kraaij, W.: Conceptual language models for domain-specific retrieval (2010) 3.98
    3.9835792 = sum of:
      3.9835792 = sum of:
        1.7629411 = weight(author_txt:rijke in 1239) [ClassicSimilarity], result of:
          1.7629411 = score(doc=1239,freq=1.0), product of:
            0.6508952 = queryWeight, product of:
              8.667158 = idf(docFreq=19, maxDocs=42740)
              0.07509903 = queryNorm
            2.708487 = fieldWeight in 1239, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.667158 = idf(docFreq=19, maxDocs=42740)
              0.3125 = fieldNorm(doc=1239)
        2.220638 = weight(author_txt:meij in 1239) [ClassicSimilarity], result of:
          2.220638 = score(doc=1239,freq=1.0), product of:
            0.7591677 = queryWeight, product of:
              1.079974 = boost
              9.360306 = idf(docFreq=9, maxDocs=42740)
              0.07509903 = queryNorm
            2.9250956 = fieldWeight in 1239, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.360306 = idf(docFreq=9, maxDocs=42740)
              0.3125 = fieldNorm(doc=1239)
    
  3. Van der Meij, H.: Styling the index : is it time for a change? (2002) 1.78
    1.7765104 = sum of:
      1.7765104 = product of:
        3.5530207 = sum of:
          3.5530207 = weight(author_txt:meij in 4823) [ClassicSimilarity], result of:
            3.5530207 = score(doc=4823,freq=1.0), product of:
              0.7591677 = queryWeight, product of:
                1.079974 = boost
                9.360306 = idf(docFreq=9, maxDocs=42740)
                0.07509903 = queryNorm
              4.680153 = fieldWeight in 4823, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.360306 = idf(docFreq=9, maxDocs=42740)
                0.5 = fieldNorm(doc=4823)
        0.5 = coord(1/2)
    
  4. Meij, H. van der -> Van der Meij, H.: 1.57
    1.5702281 = sum of:
      1.5702281 = product of:
        3.1404562 = sum of:
          3.1404562 = weight(author_txt:meij in 3774) [ClassicSimilarity], result of:
            3.1404562 = score(doc=3774,freq=2.0), product of:
              0.7591677 = queryWeight, product of:
                1.079974 = boost
                9.360306 = idf(docFreq=9, maxDocs=42740)
                0.07509903 = queryNorm
              4.1367097 = fieldWeight in 3774, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.360306 = idf(docFreq=9, maxDocs=42740)
                0.3125 = fieldNorm(doc=3774)
        0.5 = coord(1/2)
    
  5. De Rijke, M. -> Rijke, M. de: 1.50
    1.495905 = sum of:
      1.495905 = product of:
        2.99181 = sum of:
          2.99181 = weight(author_txt:rijke in 117) [ClassicSimilarity], result of:
            2.99181 = score(doc=117,freq=2.0), product of:
              0.6508952 = queryWeight, product of:
                8.667158 = idf(docFreq=19, maxDocs=42740)
                0.07509903 = queryNorm
              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)
        0.5 = coord(1/2)
    

Similar documents (content)

  1. Meij, E.; Trieschnigg, D.; Rijke, M. de; Kraaij, W.: Conceptual language models for domain-specific retrieval (2010) 0.34
    0.33839676 = sum of:
      0.33839676 = product of:
        0.939991 = sum of:
          0.0903088 = weight(abstract_txt:annotations in 1239) [ClassicSimilarity], result of:
            0.0903088 = score(doc=1239,freq=2.0), product of:
              0.13806735 = queryWeight, product of:
                1.0394145 = boost
                7.400211 = idf(docFreq=70, maxDocs=42740)
                0.017949738 = queryNorm
              0.6540924 = fieldWeight in 1239, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.400211 = idf(docFreq=70, maxDocs=42740)
                0.0625 = fieldNorm(doc=1239)
          0.096252784 = weight(abstract_txt:generative in 1239) [ClassicSimilarity], result of:
            0.096252784 = score(doc=1239,freq=1.0), product of:
              0.1815055 = queryWeight, product of:
                1.1917583 = boost
                8.484837 = idf(docFreq=23, maxDocs=42740)
                0.017949738 = queryNorm
              0.5303023 = fieldWeight in 1239, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.484837 = idf(docFreq=23, maxDocs=42740)
                0.0625 = fieldNorm(doc=1239)
          0.024381608 = weight(abstract_txt:over in 1239) [ClassicSimilarity], result of:
            0.024381608 = score(doc=1239,freq=1.0), product of:
              0.09155157 = queryWeight, product of:
                1.1969918 = boost
                4.261049 = idf(docFreq=1638, maxDocs=42740)
                0.017949738 = queryNorm
              0.26631555 = fieldWeight in 1239, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.261049 = idf(docFreq=1638, maxDocs=42740)
                0.0625 = fieldNorm(doc=1239)
          0.06511205 = weight(abstract_txt:models in 1239) [ClassicSimilarity], result of:
            0.06511205 = score(doc=1239,freq=4.0), product of:
              0.11101419 = queryWeight, product of:
                1.3180975 = boost
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.017949738 = queryNorm
              0.5865201 = fieldWeight in 1239, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.0625 = fieldNorm(doc=1239)
          0.08186548 = weight(abstract_txt:query in 1239) [ClassicSimilarity], result of:
            0.08186548 = score(doc=1239,freq=6.0), product of:
              0.11297292 = queryWeight, product of:
                1.3296748 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.017949738 = queryNorm
              0.7246469 = fieldWeight in 1239, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.0625 = fieldNorm(doc=1239)
          0.074822664 = weight(abstract_txt:precision in 1239) [ClassicSimilarity], result of:
            0.074822664 = score(doc=1239,freq=2.0), product of:
              0.15345098 = queryWeight, product of:
                1.5496839 = boost
                5.5165615 = idf(docFreq=466, maxDocs=42740)
                0.017949738 = queryNorm
              0.48759976 = fieldWeight in 1239, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5165615 = idf(docFreq=466, maxDocs=42740)
                0.0625 = fieldNorm(doc=1239)
          0.0679514 = weight(abstract_txt:suggestions in 1239) [ClassicSimilarity], result of:
            0.0679514 = score(doc=1239,freq=1.0), product of:
              0.18131061 = queryWeight, product of:
                1.6844957 = boost
                5.996464 = idf(docFreq=288, maxDocs=42740)
                0.017949738 = queryNorm
              0.374779 = fieldWeight in 1239, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.996464 = idf(docFreq=288, maxDocs=42740)
                0.0625 = fieldNorm(doc=1239)
          0.108616374 = weight(abstract_txt:browsing in 1239) [ClassicSimilarity], result of:
            0.108616374 = score(doc=1239,freq=1.0), product of:
              0.31229457 = queryWeight, product of:
                3.126479 = boost
                5.5648165 = idf(docFreq=444, maxDocs=42740)
                0.017949738 = queryNorm
              0.34780103 = fieldWeight in 1239, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5648165 = idf(docFreq=444, maxDocs=42740)
                0.0625 = fieldNorm(doc=1239)
          0.3306798 = weight(abstract_txt:feedback in 1239) [ClassicSimilarity], result of:
            0.3306798 = score(doc=1239,freq=4.0), product of:
              0.44516674 = queryWeight, product of:
                4.1733966 = boost
                5.942579 = idf(docFreq=304, maxDocs=42740)
                0.017949738 = queryNorm
              0.74282235 = fieldWeight in 1239, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.942579 = idf(docFreq=304, maxDocs=42740)
                0.0625 = fieldNorm(doc=1239)
        0.36 = coord(9/25)
    
  2. Fernández-Reyes, F.C.; Hermosillo-Valadez, J.; Montes-y-Gómez, M.: ¬A prospect-guided global query expansion strategy using word embeddings (2018) 0.16
    0.15953064 = sum of:
      0.15953064 = product of:
        0.5697523 = sum of:
          0.024381608 = weight(abstract_txt:over in 1091) [ClassicSimilarity], result of:
            0.024381608 = score(doc=1091,freq=1.0), product of:
              0.09155157 = queryWeight, product of:
                1.1969918 = boost
                4.261049 = idf(docFreq=1638, maxDocs=42740)
                0.017949738 = queryNorm
              0.26631555 = fieldWeight in 1091, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.261049 = idf(docFreq=1638, maxDocs=42740)
                0.0625 = fieldNorm(doc=1091)
          0.04604117 = weight(abstract_txt:models in 1091) [ClassicSimilarity], result of:
            0.04604117 = score(doc=1091,freq=2.0), product of:
              0.11101419 = queryWeight, product of:
                1.3180975 = boost
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.017949738 = queryNorm
              0.4147323 = fieldWeight in 1091, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.0625 = fieldNorm(doc=1091)
          0.09453011 = weight(abstract_txt:query in 1091) [ClassicSimilarity], result of:
            0.09453011 = score(doc=1091,freq=8.0), product of:
              0.11297292 = queryWeight, product of:
                1.3296748 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.017949738 = queryNorm
              0.83675015 = fieldWeight in 1091, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.0625 = fieldNorm(doc=1091)
          0.042237356 = weight(abstract_txt:effectiveness in 1091) [ClassicSimilarity], result of:
            0.042237356 = score(doc=1091,freq=1.0), product of:
              0.13205516 = queryWeight, product of:
                1.4375931 = boost
                5.117541 = idf(docFreq=695, maxDocs=42740)
                0.017949738 = queryNorm
              0.3198463 = fieldWeight in 1091, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.117541 = idf(docFreq=695, maxDocs=42740)
                0.0625 = fieldNorm(doc=1091)
          0.052907612 = weight(abstract_txt:precision in 1091) [ClassicSimilarity], result of:
            0.052907612 = score(doc=1091,freq=1.0), product of:
              0.15345098 = queryWeight, product of:
                1.5496839 = boost
                5.5165615 = idf(docFreq=466, maxDocs=42740)
                0.017949738 = queryNorm
              0.3447851 = fieldWeight in 1091, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5165615 = idf(docFreq=466, maxDocs=42740)
                0.0625 = fieldNorm(doc=1091)
          0.14431453 = weight(abstract_txt:expansion in 1091) [ClassicSimilarity], result of:
            0.14431453 = score(doc=1091,freq=4.0), product of:
              0.18871696 = queryWeight, product of:
                1.7185563 = boost
                6.117713 = idf(docFreq=255, maxDocs=42740)
                0.017949738 = queryNorm
              0.7647141 = fieldWeight in 1091, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.117713 = idf(docFreq=255, maxDocs=42740)
                0.0625 = fieldNorm(doc=1091)
          0.1653399 = weight(abstract_txt:feedback in 1091) [ClassicSimilarity], result of:
            0.1653399 = score(doc=1091,freq=1.0), product of:
              0.44516674 = queryWeight, product of:
                4.1733966 = boost
                5.942579 = idf(docFreq=304, maxDocs=42740)
                0.017949738 = queryNorm
              0.37141117 = fieldWeight in 1091, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.942579 = idf(docFreq=304, maxDocs=42740)
                0.0625 = fieldNorm(doc=1091)
        0.28 = coord(7/25)
    
  3. He, D.; Wu, D.: Enhancing query translation with relevance feedback in translingual information retrieval : a study of the medication process (2011) 0.14
    0.14469405 = sum of:
      0.14469405 = product of:
        0.7234702 = sum of:
          0.08186548 = weight(abstract_txt:query in 1245) [ClassicSimilarity], result of:
            0.08186548 = score(doc=1245,freq=6.0), product of:
              0.11297292 = queryWeight, product of:
                1.3296748 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.017949738 = queryNorm
              0.7246469 = fieldWeight in 1245, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.0625 = fieldNorm(doc=1245)
          0.042237356 = weight(abstract_txt:effectiveness in 1245) [ClassicSimilarity], result of:
            0.042237356 = score(doc=1245,freq=1.0), product of:
              0.13205516 = queryWeight, product of:
                1.4375931 = boost
                5.117541 = idf(docFreq=695, maxDocs=42740)
                0.017949738 = queryNorm
              0.3198463 = fieldWeight in 1245, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.117541 = idf(docFreq=695, maxDocs=42740)
                0.0625 = fieldNorm(doc=1245)
          0.12498005 = weight(abstract_txt:expansion in 1245) [ClassicSimilarity], result of:
            0.12498005 = score(doc=1245,freq=3.0), product of:
              0.18871696 = queryWeight, product of:
                1.7185563 = boost
                6.117713 = idf(docFreq=255, maxDocs=42740)
                0.017949738 = queryNorm
              0.66226184 = fieldWeight in 1245, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.117713 = idf(docFreq=255, maxDocs=42740)
                0.0625 = fieldNorm(doc=1245)
          0.10467601 = weight(abstract_txt:improvement in 1245) [ClassicSimilarity], result of:
            0.10467601 = score(doc=1245,freq=2.0), product of:
              0.19194598 = queryWeight, product of:
                1.7331965 = boost
                6.169829 = idf(docFreq=242, maxDocs=42740)
                0.017949738 = queryNorm
              0.54534096 = fieldWeight in 1245, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.169829 = idf(docFreq=242, maxDocs=42740)
                0.0625 = fieldNorm(doc=1245)
          0.36971128 = weight(abstract_txt:feedback in 1245) [ClassicSimilarity], result of:
            0.36971128 = score(doc=1245,freq=5.0), product of:
              0.44516674 = queryWeight, product of:
                4.1733966 = boost
                5.942579 = idf(docFreq=304, maxDocs=42740)
                0.017949738 = queryNorm
              0.83050066 = fieldWeight in 1245, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.942579 = idf(docFreq=304, maxDocs=42740)
                0.0625 = fieldNorm(doc=1245)
        0.2 = coord(5/25)
    
  4. Dang, E.K.F.; Luk, R.W.P.; Allan, J.: ¬A context-dependent relevance model (2016) 0.14
    0.14225759 = sum of:
      0.14225759 = product of:
        0.59273994 = sum of:
          0.024381608 = weight(abstract_txt:over in 4779) [ClassicSimilarity], result of:
            0.024381608 = score(doc=4779,freq=1.0), product of:
              0.09155157 = queryWeight, product of:
                1.1969918 = boost
                4.261049 = idf(docFreq=1638, maxDocs=42740)
                0.017949738 = queryNorm
              0.26631555 = fieldWeight in 4779, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.261049 = idf(docFreq=1638, maxDocs=42740)
                0.0625 = fieldNorm(doc=4779)
          0.04604117 = weight(abstract_txt:models in 4779) [ClassicSimilarity], result of:
            0.04604117 = score(doc=4779,freq=2.0), product of:
              0.11101419 = queryWeight, product of:
                1.3180975 = boost
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.017949738 = queryNorm
              0.4147323 = fieldWeight in 4779, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6921606 = idf(docFreq=1064, maxDocs=42740)
                0.0625 = fieldNorm(doc=4779)
          0.057887632 = weight(abstract_txt:query in 4779) [ClassicSimilarity], result of:
            0.057887632 = score(doc=4779,freq=3.0), product of:
              0.11297292 = queryWeight, product of:
                1.3296748 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.017949738 = queryNorm
              0.5124027 = fieldWeight in 4779, 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=4779)
          0.059732642 = weight(abstract_txt:effectiveness in 4779) [ClassicSimilarity], result of:
            0.059732642 = score(doc=4779,freq=2.0), product of:
              0.13205516 = queryWeight, product of:
                1.4375931 = boost
                5.117541 = idf(docFreq=695, maxDocs=42740)
                0.017949738 = queryNorm
              0.45233098 = fieldWeight in 4779, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.117541 = idf(docFreq=695, maxDocs=42740)
                0.0625 = fieldNorm(doc=4779)
          0.074017115 = weight(abstract_txt:improvement in 4779) [ClassicSimilarity], result of:
            0.074017115 = score(doc=4779,freq=1.0), product of:
              0.19194598 = queryWeight, product of:
                1.7331965 = boost
                6.169829 = idf(docFreq=242, maxDocs=42740)
                0.017949738 = queryNorm
              0.3856143 = fieldWeight in 4779, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.169829 = idf(docFreq=242, maxDocs=42740)
                0.0625 = fieldNorm(doc=4779)
          0.3306798 = weight(abstract_txt:feedback in 4779) [ClassicSimilarity], result of:
            0.3306798 = score(doc=4779,freq=4.0), product of:
              0.44516674 = queryWeight, product of:
                4.1733966 = boost
                5.942579 = idf(docFreq=304, maxDocs=42740)
                0.017949738 = queryNorm
              0.74282235 = fieldWeight in 4779, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.942579 = idf(docFreq=304, maxDocs=42740)
                0.0625 = fieldNorm(doc=4779)
        0.24 = coord(6/25)
    
  5. Brandão, W.C.; Santos, R.L.T.; Ziviani, N.; Moura, E.S. de; Silva, A.S. da: Learning to expand queries using entities (2014) 0.13
    0.13140272 = sum of:
      0.13140272 = product of:
        0.65701354 = sum of:
          0.07473262 = weight(abstract_txt:query in 3344) [ClassicSimilarity], result of:
            0.07473262 = score(doc=3344,freq=5.0), product of:
              0.11297292 = queryWeight, product of:
                1.3296748 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.017949738 = 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)
          0.059732642 = weight(abstract_txt:effectiveness in 3344) [ClassicSimilarity], result of:
            0.059732642 = score(doc=3344,freq=2.0), product of:
              0.13205516 = queryWeight, product of:
                1.4375931 = boost
                5.117541 = idf(docFreq=695, maxDocs=42740)
                0.017949738 = queryNorm
              0.45233098 = fieldWeight in 3344, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.117541 = idf(docFreq=695, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
          0.074822664 = weight(abstract_txt:precision in 3344) [ClassicSimilarity], result of:
            0.074822664 = score(doc=3344,freq=2.0), product of:
              0.15345098 = queryWeight, product of:
                1.5496839 = boost
                5.5165615 = idf(docFreq=466, maxDocs=42740)
                0.017949738 = queryNorm
              0.48759976 = fieldWeight in 3344, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5165615 = idf(docFreq=466, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
          0.16134855 = weight(abstract_txt:expansion in 3344) [ClassicSimilarity], result of:
            0.16134855 = score(doc=3344,freq=5.0), product of:
              0.18871696 = queryWeight, product of:
                1.7185563 = boost
                6.117713 = idf(docFreq=255, maxDocs=42740)
                0.017949738 = queryNorm
              0.8549764 = fieldWeight in 3344, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                6.117713 = idf(docFreq=255, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
          0.2863771 = weight(abstract_txt:feedback in 3344) [ClassicSimilarity], result of:
            0.2863771 = score(doc=3344,freq=3.0), product of:
              0.44516674 = queryWeight, product of:
                4.1733966 = boost
                5.942579 = idf(docFreq=304, maxDocs=42740)
                0.017949738 = queryNorm
              0.64330304 = fieldWeight in 3344, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.942579 = idf(docFreq=304, maxDocs=42740)
                0.0625 = fieldNorm(doc=3344)
        0.2 = coord(5/25)