Document (#38787)

Author
Wildemuth, B.
Freund, L.
Toms, E.G.
Title
Untangling search task complexity and difficulty in the context of interactive information retrieval studies
Source
Journal of documentation. 70(2014) no.6, S.1118-1140
Year
2014
Abstract
Purpose - One core element of interactive information retrieval (IIR) experiments is the assignment of search tasks. The purpose of this paper is to provide an analytical review of current practice in developing those search tasks to test, observe or control task complexity and difficulty. Design/methodology/approach - Over 100 prior studies of IIR were examined in terms of how each defined task complexity and/or difficulty (or related concepts) and subsequently interpreted those concepts in the development of the assigned search tasks. Findings - Search task complexity is found to include three dimensions: multiplicity of subtasks or steps, multiplicity of facets, and indeterminability. Search task difficulty is based on an interaction between the search task and the attributes of the searcher or the attributes of the search situation. The paper highlights the anomalies in our use of these two concepts, concluding with suggestions for future methodological research related to search task complexity and difficulty. Originality/value - By analyzing and synthesizing current practices, this paper provides guidance for future experiments in IIR that involve these two constructs.
Content
Beitrag in einem Special Issue: Festschrift in honour of Nigel Ford
Theme
Retrievalstudien
Object
TREC

Similar documents (author)

  1. Freund, L.; Toms, E.G.: Interacting with archival finding aids (2016) 3.56
    3.5599246 = sum of:
      3.5599246 = product of:
        5.3398867 = sum of:
          2.2719471 = weight(author_txt:toms in 2851) [ClassicSimilarity], result of:
            2.2719471 = score(doc=2851,freq=1.0), product of:
              0.5222174 = queryWeight, product of:
                8.701155 = idf(docFreq=19, maxDocs=44218)
                0.06001702 = queryNorm
              4.3505774 = fieldWeight in 2851, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.701155 = idf(docFreq=19, maxDocs=44218)
                0.5 = fieldNorm(doc=2851)
          3.0679395 = weight(author_txt:freund in 2851) [ClassicSimilarity], result of:
            3.0679395 = score(doc=2851,freq=1.0), product of:
              0.63799465 = queryWeight, product of:
                1.1053069 = boost
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.06001702 = queryNorm
              4.808723 = fieldWeight in 2851, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.5 = fieldNorm(doc=2851)
        0.6666667 = coord(2/3)
    
  2. Toms, E.G.; Freund, L.; Li, C.: WilRE: the Web Interactive information retrieval experimentation system prototype (2004) 2.67
    2.6699436 = sum of:
      2.6699436 = product of:
        4.004915 = sum of:
          1.7039604 = weight(author_txt:toms in 2534) [ClassicSimilarity], result of:
            1.7039604 = score(doc=2534,freq=1.0), product of:
              0.5222174 = queryWeight, product of:
                8.701155 = idf(docFreq=19, maxDocs=44218)
                0.06001702 = queryNorm
              3.262933 = fieldWeight in 2534, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.701155 = idf(docFreq=19, maxDocs=44218)
                0.375 = fieldNorm(doc=2534)
          2.3009546 = weight(author_txt:freund in 2534) [ClassicSimilarity], result of:
            2.3009546 = score(doc=2534,freq=1.0), product of:
              0.63799465 = queryWeight, product of:
                1.1053069 = boost
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.06001702 = queryNorm
              3.606542 = fieldWeight in 2534, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.375 = fieldNorm(doc=2534)
        0.6666667 = coord(2/3)
    
  3. Freund, L.: Contextualizing the information-seeking behavior of software engineers (2015) 1.28
    1.2783082 = sum of:
      1.2783082 = product of:
        3.8349245 = sum of:
          3.8349245 = weight(author_txt:freund in 2120) [ClassicSimilarity], result of:
            3.8349245 = score(doc=2120,freq=1.0), product of:
              0.63799465 = queryWeight, product of:
                1.1053069 = boost
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.06001702 = queryNorm
              6.010904 = fieldWeight in 2120, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.625 = fieldNorm(doc=2120)
        0.33333334 = coord(1/3)
    
  4. Parra Freund, G. => Freund, G.P.: 1.27
    1.2654605 = sum of:
      1.2654605 = product of:
        3.7963815 = sum of:
          3.7963815 = weight(author_txt:freund in 5822) [ClassicSimilarity], result of:
            3.7963815 = score(doc=5822,freq=2.0), product of:
              0.63799465 = queryWeight, product of:
                1.1053069 = boost
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.06001702 = queryNorm
              5.950491 = fieldWeight in 5822, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.4375 = fieldNorm(doc=5822)
        0.33333334 = coord(1/3)
    
  5. Wildemuth, B.M.: Measures of success in searching a full-text fact base (1990) 1.07
    1.0678957 = sum of:
      1.0678957 = product of:
        3.2036867 = sum of:
          3.2036867 = weight(author_txt:wildemuth in 2050) [ClassicSimilarity], result of:
            3.2036867 = score(doc=2050,freq=1.0), product of:
              0.565908 = queryWeight, product of:
                1.0409917 = boost
                9.05783 = idf(docFreq=13, maxDocs=44218)
                0.06001702 = queryNorm
              5.661144 = fieldWeight in 2050, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.05783 = idf(docFreq=13, maxDocs=44218)
                0.625 = fieldNorm(doc=2050)
        0.33333334 = coord(1/3)
    

Similar documents (content)

  1. Hu, X.; Kando, N.: Task complexity and difficulty in music information retrieval (2017) 0.41
    0.41405085 = sum of:
      0.41405085 = product of:
        1.478753 = sum of:
          0.020729855 = weight(abstract_txt:future in 3690) [ClassicSimilarity], result of:
            0.020729855 = score(doc=3690,freq=1.0), product of:
              0.078153886 = queryWeight, product of:
                1.2147382 = boost
                4.243905 = idf(docFreq=1724, maxDocs=44218)
                0.015160104 = queryNorm
              0.26524407 = fieldWeight in 3690, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.243905 = idf(docFreq=1724, maxDocs=44218)
                0.0625 = fieldNorm(doc=3690)
          0.021084355 = weight(abstract_txt:studies in 3690) [ClassicSimilarity], result of:
            0.021084355 = score(doc=3690,freq=1.0), product of:
              0.07904237 = queryWeight, product of:
                1.2216235 = boost
                4.26796 = idf(docFreq=1683, maxDocs=44218)
                0.015160104 = queryNorm
              0.2667475 = fieldWeight in 3690, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.26796 = idf(docFreq=1683, maxDocs=44218)
                0.0625 = fieldNorm(doc=3690)
          0.05599145 = weight(abstract_txt:tasks in 3690) [ClassicSimilarity], result of:
            0.05599145 = score(doc=3690,freq=1.0), product of:
              0.17351271 = queryWeight, product of:
                2.2167602 = boost
                5.1630983 = idf(docFreq=687, maxDocs=44218)
                0.015160104 = queryNorm
              0.32269365 = fieldWeight in 3690, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.1630983 = idf(docFreq=687, maxDocs=44218)
                0.0625 = fieldNorm(doc=3690)
          0.343362 = weight(abstract_txt:complexity in 3690) [ClassicSimilarity], result of:
            0.343362 = score(doc=3690,freq=6.0), product of:
              0.37930113 = queryWeight, product of:
                4.231258 = boost
                5.913062 = idf(docFreq=324, maxDocs=44218)
                0.015160104 = queryNorm
              0.9052491 = fieldWeight in 3690, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.913062 = idf(docFreq=324, maxDocs=44218)
                0.0625 = fieldNorm(doc=3690)
          0.54457784 = weight(abstract_txt:difficulty in 3690) [ClassicSimilarity], result of:
            0.54457784 = score(doc=3690,freq=8.0), product of:
              0.46867996 = queryWeight, product of:
                4.70344 = boost
                6.572923 = idf(docFreq=167, maxDocs=44218)
                0.015160104 = queryNorm
              1.1619396 = fieldWeight in 3690, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                6.572923 = idf(docFreq=167, maxDocs=44218)
                0.0625 = fieldNorm(doc=3690)
          0.103471845 = weight(abstract_txt:search in 3690) [ClassicSimilarity], result of:
            0.103471845 = score(doc=3690,freq=3.0), product of:
              0.26129532 = queryWeight, product of:
                4.71172 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.015160104 = queryNorm
              0.3959958 = fieldWeight in 3690, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.0625 = fieldNorm(doc=3690)
          0.38953567 = weight(abstract_txt:task in 3690) [ClassicSimilarity], result of:
            0.38953567 = score(doc=3690,freq=12.0), product of:
              0.36633646 = queryWeight, product of:
                4.920186 = boost
                4.9112997 = idf(docFreq=884, maxDocs=44218)
                0.015160104 = queryNorm
              1.0633276 = fieldWeight in 3690, product of:
                3.4641016 = tf(freq=12.0), with freq of:
                  12.0 = termFreq=12.0
                4.9112997 = idf(docFreq=884, maxDocs=44218)
                0.0625 = fieldNorm(doc=3690)
        0.28 = coord(7/25)
    
  2. Li, Y.; Belkin, N.J.: ¬A faceted approach to conceptualizing tasks in information seeking (2008) 0.26
    0.25979543 = sum of:
      0.25979543 = product of:
        0.9278408 = sum of:
          0.02981778 = weight(abstract_txt:studies in 2442) [ClassicSimilarity], result of:
            0.02981778 = score(doc=2442,freq=2.0), product of:
              0.07904237 = queryWeight, product of:
                1.2216235 = boost
                4.26796 = idf(docFreq=1683, maxDocs=44218)
                0.015160104 = queryNorm
              0.37723795 = fieldWeight in 2442, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.26796 = idf(docFreq=1683, maxDocs=44218)
                0.0625 = fieldNorm(doc=2442)
          0.024116037 = weight(abstract_txt:purpose in 2442) [ClassicSimilarity], result of:
            0.024116037 = score(doc=2442,freq=1.0), product of:
              0.086448416 = queryWeight, product of:
                1.2775737 = boost
                4.463432 = idf(docFreq=1384, maxDocs=44218)
                0.015160104 = queryNorm
              0.2789645 = fieldWeight in 2442, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.463432 = idf(docFreq=1384, maxDocs=44218)
                0.0625 = fieldNorm(doc=2442)
          0.046485357 = weight(abstract_txt:interactive in 2442) [ClassicSimilarity], result of:
            0.046485357 = score(doc=2442,freq=1.0), product of:
              0.13389485 = queryWeight, product of:
                1.5899715 = boost
                5.5548496 = idf(docFreq=464, maxDocs=44218)
                0.015160104 = queryNorm
              0.3471781 = fieldWeight in 2442, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5548496 = idf(docFreq=464, maxDocs=44218)
                0.0625 = fieldNorm(doc=2442)
          0.088450156 = weight(abstract_txt:attributes in 2442) [ClassicSimilarity], result of:
            0.088450156 = score(doc=2442,freq=2.0), product of:
              0.16318321 = queryWeight, product of:
                1.755275 = boost
                6.1323667 = idf(docFreq=260, maxDocs=44218)
                0.015160104 = queryNorm
              0.54202974 = fieldWeight in 2442, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.1323667 = idf(docFreq=260, maxDocs=44218)
                0.0625 = fieldNorm(doc=2442)
          0.18570262 = weight(abstract_txt:tasks in 2442) [ClassicSimilarity], result of:
            0.18570262 = score(doc=2442,freq=11.0), product of:
              0.17351271 = queryWeight, product of:
                2.2167602 = boost
                5.1630983 = idf(docFreq=687, maxDocs=44218)
                0.015160104 = queryNorm
              1.0702537 = fieldWeight in 2442, product of:
                3.3166249 = tf(freq=11.0), with freq of:
                  11.0 = termFreq=11.0
                5.1630983 = idf(docFreq=687, maxDocs=44218)
                0.0625 = fieldNorm(doc=2442)
          0.103471845 = weight(abstract_txt:search in 2442) [ClassicSimilarity], result of:
            0.103471845 = score(doc=2442,freq=3.0), product of:
              0.26129532 = queryWeight, product of:
                4.71172 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.015160104 = queryNorm
              0.3959958 = fieldWeight in 2442, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.0625 = fieldNorm(doc=2442)
          0.44979703 = weight(abstract_txt:task in 2442) [ClassicSimilarity], result of:
            0.44979703 = score(doc=2442,freq=16.0), product of:
              0.36633646 = queryWeight, product of:
                4.920186 = boost
                4.9112997 = idf(docFreq=884, maxDocs=44218)
                0.015160104 = queryNorm
              1.2278249 = fieldWeight in 2442, product of:
                4.0 = tf(freq=16.0), with freq of:
                  16.0 = termFreq=16.0
                4.9112997 = idf(docFreq=884, maxDocs=44218)
                0.0625 = fieldNorm(doc=2442)
        0.28 = coord(7/25)
    
  3. Li, Y.: Exploring the relationships between work task and search task in information search (2009) 0.23
    0.22645521 = sum of:
      0.22645521 = product of:
        1.132276 = sum of:
          0.09698003 = weight(abstract_txt:tasks in 2714) [ClassicSimilarity], result of:
            0.09698003 = score(doc=2714,freq=3.0), product of:
              0.17351271 = queryWeight, product of:
                2.2167602 = boost
                5.1630983 = idf(docFreq=687, maxDocs=44218)
                0.015160104 = queryNorm
              0.55892175 = fieldWeight in 2714, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.1630983 = idf(docFreq=687, maxDocs=44218)
                0.0625 = fieldNorm(doc=2714)
          0.24279359 = weight(abstract_txt:complexity in 2714) [ClassicSimilarity], result of:
            0.24279359 = score(doc=2714,freq=3.0), product of:
              0.37930113 = queryWeight, product of:
                4.231258 = boost
                5.913062 = idf(docFreq=324, maxDocs=44218)
                0.015160104 = queryNorm
              0.64010775 = fieldWeight in 2714, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.913062 = idf(docFreq=324, maxDocs=44218)
                0.0625 = fieldNorm(doc=2714)
          0.19253734 = weight(abstract_txt:difficulty in 2714) [ClassicSimilarity], result of:
            0.19253734 = score(doc=2714,freq=1.0), product of:
              0.46867996 = queryWeight, product of:
                4.70344 = boost
                6.572923 = idf(docFreq=167, maxDocs=44218)
                0.015160104 = queryNorm
              0.4108077 = fieldWeight in 2714, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.572923 = idf(docFreq=167, maxDocs=44218)
                0.0625 = fieldNorm(doc=2714)
          0.1792185 = weight(abstract_txt:search in 2714) [ClassicSimilarity], result of:
            0.1792185 = score(doc=2714,freq=9.0), product of:
              0.26129532 = queryWeight, product of:
                4.71172 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.015160104 = queryNorm
              0.68588483 = fieldWeight in 2714, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.0625 = fieldNorm(doc=2714)
          0.42074662 = weight(abstract_txt:task in 2714) [ClassicSimilarity], result of:
            0.42074662 = score(doc=2714,freq=14.0), product of:
              0.36633646 = queryWeight, product of:
                4.920186 = boost
                4.9112997 = idf(docFreq=884, maxDocs=44218)
                0.015160104 = queryNorm
              1.1485251 = fieldWeight in 2714, product of:
                3.7416575 = tf(freq=14.0), with freq of:
                  14.0 = termFreq=14.0
                4.9112997 = idf(docFreq=884, maxDocs=44218)
                0.0625 = fieldNorm(doc=2714)
        0.2 = coord(5/25)
    
  4. Wildemuth, B.M.; Kelly, D,; Boettcher, E.; Moore, E.; Dimitrova, G.: Examining the impact of domain and cognitive complexity on query formulation and reformulation (2018) 0.21
    0.21333142 = sum of:
      0.21333142 = product of:
        0.7618979 = sum of:
          0.021747991 = weight(abstract_txt:those in 5085) [ClassicSimilarity], result of:
            0.021747991 = score(doc=5085,freq=1.0), product of:
              0.08069237 = queryWeight, product of:
                1.2343084 = boost
                4.312277 = idf(docFreq=1610, maxDocs=44218)
                0.015160104 = queryNorm
              0.2695173 = fieldWeight in 5085, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.312277 = idf(docFreq=1610, maxDocs=44218)
                0.0625 = fieldNorm(doc=5085)
          0.024116037 = weight(abstract_txt:purpose in 5085) [ClassicSimilarity], result of:
            0.024116037 = score(doc=5085,freq=1.0), product of:
              0.086448416 = queryWeight, product of:
                1.2775737 = boost
                4.463432 = idf(docFreq=1384, maxDocs=44218)
                0.015160104 = queryNorm
              0.2789645 = fieldWeight in 5085, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.463432 = idf(docFreq=1384, maxDocs=44218)
                0.0625 = fieldNorm(doc=5085)
          0.046485357 = weight(abstract_txt:interactive in 5085) [ClassicSimilarity], result of:
            0.046485357 = score(doc=5085,freq=1.0), product of:
              0.13389485 = queryWeight, product of:
                1.5899715 = boost
                5.5548496 = idf(docFreq=464, maxDocs=44218)
                0.015160104 = queryNorm
              0.3471781 = fieldWeight in 5085, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5548496 = idf(docFreq=464, maxDocs=44218)
                0.0625 = fieldNorm(doc=5085)
          0.16797435 = weight(abstract_txt:tasks in 5085) [ClassicSimilarity], result of:
            0.16797435 = score(doc=5085,freq=9.0), product of:
              0.17351271 = queryWeight, product of:
                2.2167602 = boost
                5.1630983 = idf(docFreq=687, maxDocs=44218)
                0.015160104 = queryNorm
              0.96808094 = fieldWeight in 5085, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                5.1630983 = idf(docFreq=687, maxDocs=44218)
                0.0625 = fieldNorm(doc=5085)
          0.24279359 = weight(abstract_txt:complexity in 5085) [ClassicSimilarity], result of:
            0.24279359 = score(doc=5085,freq=3.0), product of:
              0.37930113 = queryWeight, product of:
                4.231258 = boost
                5.913062 = idf(docFreq=324, maxDocs=44218)
                0.015160104 = queryNorm
              0.64010775 = fieldWeight in 5085, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.913062 = idf(docFreq=324, maxDocs=44218)
                0.0625 = fieldNorm(doc=5085)
          0.1463313 = weight(abstract_txt:search in 5085) [ClassicSimilarity], result of:
            0.1463313 = score(doc=5085,freq=6.0), product of:
              0.26129532 = queryWeight, product of:
                4.71172 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.015160104 = queryNorm
              0.56002265 = fieldWeight in 5085, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.0625 = fieldNorm(doc=5085)
          0.11244926 = weight(abstract_txt:task in 5085) [ClassicSimilarity], result of:
            0.11244926 = score(doc=5085,freq=1.0), product of:
              0.36633646 = queryWeight, product of:
                4.920186 = boost
                4.9112997 = idf(docFreq=884, maxDocs=44218)
                0.015160104 = queryNorm
              0.30695623 = fieldWeight in 5085, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9112997 = idf(docFreq=884, maxDocs=44218)
                0.0625 = fieldNorm(doc=5085)
        0.28 = coord(7/25)
    
  5. MacKay, B.; Watters, C.: ¬An examination of multisession web tasks (2012) 0.21
    0.20605102 = sum of:
      0.20605102 = product of:
        0.64390945 = sum of:
          0.020160412 = weight(abstract_txt:related in 255) [ClassicSimilarity], result of:
            0.020160412 = score(doc=255,freq=1.0), product of:
              0.07671601 = queryWeight, product of:
                1.2035121 = boost
                4.2046843 = idf(docFreq=1793, maxDocs=44218)
                0.015160104 = queryNorm
              0.26279277 = fieldWeight in 255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2046843 = idf(docFreq=1793, maxDocs=44218)
                0.0625 = fieldNorm(doc=255)
          0.036519174 = weight(abstract_txt:studies in 255) [ClassicSimilarity], result of:
            0.036519174 = score(doc=255,freq=3.0), product of:
              0.07904237 = queryWeight, product of:
                1.2216235 = boost
                4.26796 = idf(docFreq=1683, maxDocs=44218)
                0.015160104 = queryNorm
              0.46202022 = fieldWeight in 255, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.26796 = idf(docFreq=1683, maxDocs=44218)
                0.0625 = fieldNorm(doc=255)
          0.021534216 = weight(abstract_txt:current in 255) [ClassicSimilarity], result of:
            0.021534216 = score(doc=255,freq=1.0), product of:
              0.08016272 = queryWeight, product of:
                1.2302508 = boost
                4.298101 = idf(docFreq=1633, maxDocs=44218)
                0.015160104 = queryNorm
              0.2686313 = fieldWeight in 255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.298101 = idf(docFreq=1633, maxDocs=44218)
                0.0625 = fieldNorm(doc=255)
          0.021747991 = weight(abstract_txt:those in 255) [ClassicSimilarity], result of:
            0.021747991 = score(doc=255,freq=1.0), product of:
              0.08069237 = queryWeight, product of:
                1.2343084 = boost
                4.312277 = idf(docFreq=1610, maxDocs=44218)
                0.015160104 = queryNorm
              0.2695173 = fieldWeight in 255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.312277 = idf(docFreq=1610, maxDocs=44218)
                0.0625 = fieldNorm(doc=255)
          0.17779876 = weight(abstract_txt:subtasks in 255) [ClassicSimilarity], result of:
            0.17779876 = score(doc=255,freq=2.0), product of:
              0.20629351 = queryWeight, product of:
                1.3955172 = boost
                9.7509775 = idf(docFreq=6, maxDocs=44218)
                0.015160104 = queryNorm
              0.8618728 = fieldWeight in 255, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.7509775 = idf(docFreq=6, maxDocs=44218)
                0.0625 = fieldNorm(doc=255)
          0.19396006 = weight(abstract_txt:tasks in 255) [ClassicSimilarity], result of:
            0.19396006 = score(doc=255,freq=12.0), product of:
              0.17351271 = queryWeight, product of:
                2.2167602 = boost
                5.1630983 = idf(docFreq=687, maxDocs=44218)
                0.015160104 = queryNorm
              1.1178435 = fieldWeight in 255, product of:
                3.4641016 = tf(freq=12.0), with freq of:
                  12.0 = termFreq=12.0
                5.1630983 = idf(docFreq=687, maxDocs=44218)
                0.0625 = fieldNorm(doc=255)
          0.0597395 = weight(abstract_txt:search in 255) [ClassicSimilarity], result of:
            0.0597395 = score(doc=255,freq=1.0), product of:
              0.26129532 = queryWeight, product of:
                4.71172 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.015160104 = queryNorm
              0.22862828 = fieldWeight in 255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.0625 = fieldNorm(doc=255)
          0.11244926 = weight(abstract_txt:task in 255) [ClassicSimilarity], result of:
            0.11244926 = score(doc=255,freq=1.0), product of:
              0.36633646 = queryWeight, product of:
                4.920186 = boost
                4.9112997 = idf(docFreq=884, maxDocs=44218)
                0.015160104 = queryNorm
              0.30695623 = fieldWeight in 255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9112997 = idf(docFreq=884, maxDocs=44218)
                0.0625 = fieldNorm(doc=255)
        0.32 = coord(8/25)