Document (#10984)

Author
Harman, D.
Title
Overview of the Second Text Retrieval Conference : TREC-2
Source
Information processing and management. 31(1995) no.3, S.271-289
Year
1995
Abstract
The conference was attended by about 150 people involved in 31 participating groups. Its goal was to bring research groups together to discuss their work on a new large test collection. There was a large variation of retrieval techniques reported on, including methods using automatic thesauri, sophisticated term weighting, natural language techniques, relevance feedback, and advanced pattern matching. As results had been run through a common evaluation package, groups were able to compare the effectiveness of different techniques, and discuss how differences between the systems affected performance
Theme
Retrievalstudien
Object
TREC

Similar documents (author)

  1. Harman, D.: User-friendly systems instead of user-friendly front-ends (1992) 5.35
    5.353733 = sum of:
      5.353733 = weight(author_txt:harman in 3322) [ClassicSimilarity], result of:
        5.353733 = fieldWeight in 3322, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.565973 = idf(docFreq=22, maxDocs=44421)
          0.625 = fieldNorm(doc=3322)
    
  2. Harman, D.: Automatic indexing (1994) 5.35
    5.353733 = sum of:
      5.353733 = weight(author_txt:harman in 7728) [ClassicSimilarity], result of:
        5.353733 = fieldWeight in 7728, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.565973 = idf(docFreq=22, maxDocs=44421)
          0.625 = fieldNorm(doc=7728)
    
  3. Harman, D.: Overview of the first Text Retrieval Conference (1993) 5.35
    5.353733 = sum of:
      5.353733 = weight(author_txt:harman in 616) [ClassicSimilarity], result of:
        5.353733 = fieldWeight in 616, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.565973 = idf(docFreq=22, maxDocs=44421)
          0.625 = fieldNorm(doc=616)
    
  4. Harman, D.K.: ¬The TREC test collections (2005) 5.35
    5.353733 = sum of:
      5.353733 = weight(author_txt:harman in 4705) [ClassicSimilarity], result of:
        5.353733 = fieldWeight in 4705, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.565973 = idf(docFreq=22, maxDocs=44421)
          0.625 = fieldNorm(doc=4705)
    
  5. Harman, D.K.: Overview of the fourth Text Retrieval Conference : TREC-4 (1996) 5.35
    5.353733 = sum of:
      5.353733 = weight(author_txt:harman in 642) [ClassicSimilarity], result of:
        5.353733 = fieldWeight in 642, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.565973 = idf(docFreq=22, maxDocs=44421)
          0.625 = fieldNorm(doc=642)
    

Similar documents (content)

  1. Harman, D.: Overview of the first Text Retrieval Conference (1993) 2.59
    2.593673 = sum of:
      2.593673 = product of:
        2.8192098 = sum of:
          0.0654091 = weight(abstract_txt:thesauri in 616) [ClassicSimilarity], result of:
            0.0654091 = score(doc=616,freq=1.0), product of:
              0.1283436 = queryWeight, product of:
                1.0251361 = boost
                5.4361663 = idf(docFreq=525, maxDocs=44421)
                0.02303032 = queryNorm
              0.5096406 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4361663 = idf(docFreq=525, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.06892439 = weight(abstract_txt:able in 616) [ClassicSimilarity], result of:
            0.06892439 = score(doc=616,freq=1.0), product of:
              0.13290174 = queryWeight, product of:
                1.0431812 = boost
                5.531857 = idf(docFreq=477, maxDocs=44421)
                0.02303032 = queryNorm
              0.5186116 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.531857 = idf(docFreq=477, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.071805924 = weight(abstract_txt:goal in 616) [ClassicSimilarity], result of:
            0.071805924 = score(doc=616,freq=1.0), product of:
              0.13658057 = queryWeight, product of:
                1.0575207 = boost
                5.6078978 = idf(docFreq=442, maxDocs=44421)
                0.02303032 = queryNorm
              0.5257404 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6078978 = idf(docFreq=442, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.071892776 = weight(abstract_txt:compare in 616) [ClassicSimilarity], result of:
            0.071892776 = score(doc=616,freq=1.0), product of:
              0.13669068 = queryWeight, product of:
                1.0579469 = boost
                5.6101575 = idf(docFreq=441, maxDocs=44421)
                0.02303032 = queryNorm
              0.5259523 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6101575 = idf(docFreq=441, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.0801888 = weight(abstract_txt:reported in 616) [ClassicSimilarity], result of:
            0.0801888 = score(doc=616,freq=1.0), product of:
              0.14701374 = queryWeight, product of:
                1.0971686 = boost
                5.8181453 = idf(docFreq=358, maxDocs=44421)
                0.02303032 = queryNorm
              0.5454511 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8181453 = idf(docFreq=358, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.08208873 = weight(abstract_txt:advanced in 616) [ClassicSimilarity], result of:
            0.08208873 = score(doc=616,freq=1.0), product of:
              0.1493268 = queryWeight, product of:
                1.1057662 = boost
                5.863737 = idf(docFreq=342, maxDocs=44421)
                0.02303032 = queryNorm
              0.54972535 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.863737 = idf(docFreq=342, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.08530832 = weight(abstract_txt:feedback in 616) [ClassicSimilarity], result of:
            0.08530832 = score(doc=616,freq=1.0), product of:
              0.1532062 = queryWeight, product of:
                1.1200376 = boost
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.02303032 = queryNorm
              0.5568203 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.08980471 = weight(abstract_txt:matching in 616) [ClassicSimilarity], result of:
            0.08980471 = score(doc=616,freq=1.0), product of:
              0.1585434 = queryWeight, product of:
                1.1393797 = boost
                6.0419855 = idf(docFreq=286, maxDocs=44421)
                0.02303032 = queryNorm
              0.5664362 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0419855 = idf(docFreq=286, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.09881435 = weight(abstract_txt:pattern in 616) [ClassicSimilarity], result of:
            0.09881435 = score(doc=616,freq=1.0), product of:
              0.16897745 = queryWeight, product of:
                1.1762748 = boost
                6.2376356 = idf(docFreq=235, maxDocs=44421)
                0.02303032 = queryNorm
              0.5847783 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2376356 = idf(docFreq=235, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.10974917 = weight(abstract_txt:sophisticated in 616) [ClassicSimilarity], result of:
            0.10974917 = score(doc=616,freq=1.0), product of:
              0.18122421 = queryWeight, product of:
                1.2181549 = boost
                6.4597206 = idf(docFreq=188, maxDocs=44421)
                0.02303032 = queryNorm
              0.6055988 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4597206 = idf(docFreq=188, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.110292286 = weight(abstract_txt:bring in 616) [ClassicSimilarity], result of:
            0.110292286 = score(doc=616,freq=1.0), product of:
              0.18182161 = queryWeight, product of:
                1.2201611 = boost
                6.470359 = idf(docFreq=186, maxDocs=44421)
                0.02303032 = queryNorm
              0.6065961 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.470359 = idf(docFreq=186, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.11342161 = weight(abstract_txt:affected in 616) [ClassicSimilarity], result of:
            0.11342161 = score(doc=616,freq=1.0), product of:
              0.18524477 = queryWeight, product of:
                1.2315935 = boost
                6.5309834 = idf(docFreq=175, maxDocs=44421)
                0.02303032 = queryNorm
              0.6122797 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5309834 = idf(docFreq=175, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.12269071 = weight(abstract_txt:trec in 616) [ClassicSimilarity], result of:
            0.12269071 = score(doc=616,freq=1.0), product of:
              0.19520451 = queryWeight, product of:
                1.2642685 = boost
                6.704255 = idf(docFreq=147, maxDocs=44421)
                0.02303032 = queryNorm
              0.62852395 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.704255 = idf(docFreq=147, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.13655779 = weight(abstract_txt:package in 616) [ClassicSimilarity], result of:
            0.13655779 = score(doc=616,freq=1.0), product of:
              0.20964913 = queryWeight, product of:
                1.3102101 = boost
                6.9478774 = idf(docFreq=115, maxDocs=44421)
                0.02303032 = queryNorm
              0.6513635 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9478774 = idf(docFreq=115, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.04838734 = weight(abstract_txt:retrieval in 616) [ClassicSimilarity], result of:
            0.04838734 = score(doc=616,freq=2.0), product of:
              0.104979195 = queryWeight, product of:
                1.3111762 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.02303032 = queryNorm
              0.46092314 = fieldWeight in 616, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.13810861 = weight(abstract_txt:weighting in 616) [ClassicSimilarity], result of:
            0.13810861 = score(doc=616,freq=1.0), product of:
              0.21123339 = queryWeight, product of:
                1.3151512 = boost
                6.9740796 = idf(docFreq=112, maxDocs=44421)
                0.02303032 = queryNorm
              0.65382 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9740796 = idf(docFreq=112, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.15207487 = weight(abstract_txt:participating in 616) [ClassicSimilarity], result of:
            0.15207487 = score(doc=616,freq=1.0), product of:
              0.22524425 = queryWeight, product of:
                1.3580673 = boost
                7.201658 = idf(docFreq=89, maxDocs=44421)
                0.02303032 = queryNorm
              0.6751554 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.201658 = idf(docFreq=89, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.27342004 = weight(abstract_txt:attended in 616) [ClassicSimilarity], result of:
            0.27342004 = score(doc=616,freq=1.0), product of:
              0.33304453 = queryWeight, product of:
                1.6513745 = boost
                8.757029 = idf(docFreq=18, maxDocs=44421)
                0.02303032 = queryNorm
              0.8209714 = fieldWeight in 616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.757029 = idf(docFreq=18, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.10095871 = weight(abstract_txt:large in 616) [ClassicSimilarity], result of:
            0.10095871 = score(doc=616,freq=2.0), product of:
              0.17141333 = queryWeight, product of:
                1.6754509 = boost
                4.4423513 = idf(docFreq=1420, maxDocs=44421)
                0.02303032 = queryNorm
              0.5889782 = fieldWeight in 616, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4423513 = idf(docFreq=1420, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.17503604 = weight(abstract_txt:discuss in 616) [ClassicSimilarity], result of:
            0.17503604 = score(doc=616,freq=2.0), product of:
              0.24738142 = queryWeight, product of:
                2.0127645 = boost
                5.3367167 = idf(docFreq=580, maxDocs=44421)
                0.02303032 = queryNorm
              0.70755535 = fieldWeight in 616, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.3367167 = idf(docFreq=580, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.19833791 = weight(abstract_txt:conference in 616) [ClassicSimilarity], result of:
            0.19833791 = score(doc=616,freq=2.0), product of:
              0.2688763 = queryWeight, product of:
                2.0983875 = boost
                5.5637407 = idf(docFreq=462, maxDocs=44421)
                0.02303032 = queryNorm
              0.7376548 = fieldWeight in 616, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5637407 = idf(docFreq=462, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.19694519 = weight(abstract_txt:techniques in 616) [ClassicSimilarity], result of:
            0.19694519 = score(doc=616,freq=3.0), product of:
              0.26761615 = queryWeight, product of:
                2.5639596 = boost
                4.5321174 = idf(docFreq=1298, maxDocs=44421)
                0.02303032 = queryNorm
              0.7359241 = fieldWeight in 616, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.5321174 = idf(docFreq=1298, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
          0.22899216 = weight(abstract_txt:groups in 616) [ClassicSimilarity], result of:
            0.22899216 = score(doc=616,freq=2.0), product of:
              0.3387346 = queryWeight, product of:
                2.884595 = boost
                5.09888 = idf(docFreq=736, maxDocs=44421)
                0.02303032 = queryNorm
              0.67602235 = fieldWeight in 616, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.09888 = idf(docFreq=736, maxDocs=44421)
                0.09375 = fieldNorm(doc=616)
        0.92 = coord(23/25)
    
  2. ¬The Fourth Text Retrieval Conference (TREC-4) (1996) 0.89
    0.8861388 = sum of:
      0.8861388 = product of:
        1.7041131 = sum of:
          0.07631063 = weight(abstract_txt:thesauri in 590) [ClassicSimilarity], result of:
            0.07631063 = score(doc=590,freq=1.0), product of:
              0.1283436 = queryWeight, product of:
                1.0251361 = boost
                5.4361663 = idf(docFreq=525, maxDocs=44421)
                0.02303032 = queryNorm
              0.5945807 = fieldWeight in 590, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4361663 = idf(docFreq=525, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.0838749 = weight(abstract_txt:compare in 590) [ClassicSimilarity], result of:
            0.0838749 = score(doc=590,freq=1.0), product of:
              0.13669068 = queryWeight, product of:
                1.0579469 = boost
                5.6101575 = idf(docFreq=441, maxDocs=44421)
                0.02303032 = queryNorm
              0.613611 = fieldWeight in 590, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6101575 = idf(docFreq=441, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.09577018 = weight(abstract_txt:advanced in 590) [ClassicSimilarity], result of:
            0.09577018 = score(doc=590,freq=1.0), product of:
              0.1493268 = queryWeight, product of:
                1.1057662 = boost
                5.863737 = idf(docFreq=342, maxDocs=44421)
                0.02303032 = queryNorm
              0.6413462 = fieldWeight in 590, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.863737 = idf(docFreq=342, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.099526376 = weight(abstract_txt:feedback in 590) [ClassicSimilarity], result of:
            0.099526376 = score(doc=590,freq=1.0), product of:
              0.1532062 = queryWeight, product of:
                1.1200376 = boost
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.02303032 = queryNorm
              0.6496237 = fieldWeight in 590, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.10477216 = weight(abstract_txt:matching in 590) [ClassicSimilarity], result of:
            0.10477216 = score(doc=590,freq=1.0), product of:
              0.1585434 = queryWeight, product of:
                1.1393797 = boost
                6.0419855 = idf(docFreq=286, maxDocs=44421)
                0.02303032 = queryNorm
              0.6608422 = fieldWeight in 590, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0419855 = idf(docFreq=286, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.115283415 = weight(abstract_txt:pattern in 590) [ClassicSimilarity], result of:
            0.115283415 = score(doc=590,freq=1.0), product of:
              0.16897745 = queryWeight, product of:
                1.1762748 = boost
                6.2376356 = idf(docFreq=235, maxDocs=44421)
                0.02303032 = queryNorm
              0.6822414 = fieldWeight in 590, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2376356 = idf(docFreq=235, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.14313915 = weight(abstract_txt:trec in 590) [ClassicSimilarity], result of:
            0.14313915 = score(doc=590,freq=1.0), product of:
              0.19520451 = queryWeight, product of:
                1.2642685 = boost
                6.704255 = idf(docFreq=147, maxDocs=44421)
                0.02303032 = queryNorm
              0.7332779 = fieldWeight in 590, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.704255 = idf(docFreq=147, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.056451898 = weight(abstract_txt:retrieval in 590) [ClassicSimilarity], result of:
            0.056451898 = score(doc=590,freq=2.0), product of:
              0.104979195 = queryWeight, product of:
                1.3111762 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.02303032 = queryNorm
              0.5377437 = fieldWeight in 590, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.16112672 = weight(abstract_txt:weighting in 590) [ClassicSimilarity], result of:
            0.16112672 = score(doc=590,freq=1.0), product of:
              0.21123339 = queryWeight, product of:
                1.3151512 = boost
                6.9740796 = idf(docFreq=112, maxDocs=44421)
                0.02303032 = queryNorm
              0.76278996 = fieldWeight in 590, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9740796 = idf(docFreq=112, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.117785156 = weight(abstract_txt:large in 590) [ClassicSimilarity], result of:
            0.117785156 = score(doc=590,freq=2.0), product of:
              0.17141333 = queryWeight, product of:
                1.6754509 = boost
                4.4423513 = idf(docFreq=1420, maxDocs=44421)
                0.02303032 = queryNorm
              0.6871412 = fieldWeight in 590, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4423513 = idf(docFreq=1420, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.23139422 = weight(abstract_txt:conference in 590) [ClassicSimilarity], result of:
            0.23139422 = score(doc=590,freq=2.0), product of:
              0.2688763 = queryWeight, product of:
                2.0983875 = boost
                5.5637407 = idf(docFreq=462, maxDocs=44421)
                0.02303032 = queryNorm
              0.86059725 = fieldWeight in 590, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5637407 = idf(docFreq=462, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.22976938 = weight(abstract_txt:techniques in 590) [ClassicSimilarity], result of:
            0.22976938 = score(doc=590,freq=3.0), product of:
              0.26761615 = queryWeight, product of:
                2.5639596 = boost
                4.5321174 = idf(docFreq=1298, maxDocs=44421)
                0.02303032 = queryNorm
              0.85857815 = fieldWeight in 590, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.5321174 = idf(docFreq=1298, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
          0.18890889 = weight(abstract_txt:groups in 590) [ClassicSimilarity], result of:
            0.18890889 = score(doc=590,freq=1.0), product of:
              0.3387346 = queryWeight, product of:
                2.884595 = boost
                5.09888 = idf(docFreq=736, maxDocs=44421)
                0.02303032 = queryNorm
              0.55768996 = fieldWeight in 590, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.09888 = idf(docFreq=736, maxDocs=44421)
                0.109375 = fieldNorm(doc=590)
        0.52 = coord(13/25)
    
  3. ¬The Fifth Text Retrieval Conference (TREC-5) (1997) 0.85
    0.8508965 = sum of:
      0.8508965 = product of:
        1.6363394 = sum of:
          0.07631063 = weight(abstract_txt:thesauri in 4087) [ClassicSimilarity], result of:
            0.07631063 = score(doc=4087,freq=1.0), product of:
              0.1283436 = queryWeight, product of:
                1.0251361 = boost
                5.4361663 = idf(docFreq=525, maxDocs=44421)
                0.02303032 = queryNorm
              0.5945807 = fieldWeight in 4087, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4361663 = idf(docFreq=525, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.0838749 = weight(abstract_txt:compare in 4087) [ClassicSimilarity], result of:
            0.0838749 = score(doc=4087,freq=1.0), product of:
              0.13669068 = queryWeight, product of:
                1.0579469 = boost
                5.6101575 = idf(docFreq=441, maxDocs=44421)
                0.02303032 = queryNorm
              0.613611 = fieldWeight in 4087, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6101575 = idf(docFreq=441, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.09577018 = weight(abstract_txt:advanced in 4087) [ClassicSimilarity], result of:
            0.09577018 = score(doc=4087,freq=1.0), product of:
              0.1493268 = queryWeight, product of:
                1.1057662 = boost
                5.863737 = idf(docFreq=342, maxDocs=44421)
                0.02303032 = queryNorm
              0.6413462 = fieldWeight in 4087, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.863737 = idf(docFreq=342, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.099526376 = weight(abstract_txt:feedback in 4087) [ClassicSimilarity], result of:
            0.099526376 = score(doc=4087,freq=1.0), product of:
              0.1532062 = queryWeight, product of:
                1.1200376 = boost
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.02303032 = queryNorm
              0.6496237 = fieldWeight in 4087, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.10477216 = weight(abstract_txt:matching in 4087) [ClassicSimilarity], result of:
            0.10477216 = score(doc=4087,freq=1.0), product of:
              0.1585434 = queryWeight, product of:
                1.1393797 = boost
                6.0419855 = idf(docFreq=286, maxDocs=44421)
                0.02303032 = queryNorm
              0.6608422 = fieldWeight in 4087, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0419855 = idf(docFreq=286, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.115283415 = weight(abstract_txt:pattern in 4087) [ClassicSimilarity], result of:
            0.115283415 = score(doc=4087,freq=1.0), product of:
              0.16897745 = queryWeight, product of:
                1.1762748 = boost
                6.2376356 = idf(docFreq=235, maxDocs=44421)
                0.02303032 = queryNorm
              0.6822414 = fieldWeight in 4087, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2376356 = idf(docFreq=235, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.14313915 = weight(abstract_txt:trec in 4087) [ClassicSimilarity], result of:
            0.14313915 = score(doc=4087,freq=1.0), product of:
              0.19520451 = queryWeight, product of:
                1.2642685 = boost
                6.704255 = idf(docFreq=147, maxDocs=44421)
                0.02303032 = queryNorm
              0.7332779 = fieldWeight in 4087, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.704255 = idf(docFreq=147, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.056451898 = weight(abstract_txt:retrieval in 4087) [ClassicSimilarity], result of:
            0.056451898 = score(doc=4087,freq=2.0), product of:
              0.104979195 = queryWeight, product of:
                1.3111762 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.02303032 = queryNorm
              0.5377437 = fieldWeight in 4087, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.16112672 = weight(abstract_txt:weighting in 4087) [ClassicSimilarity], result of:
            0.16112672 = score(doc=4087,freq=1.0), product of:
              0.21123339 = queryWeight, product of:
                1.3151512 = boost
                6.9740796 = idf(docFreq=112, maxDocs=44421)
                0.02303032 = queryNorm
              0.76278996 = fieldWeight in 4087, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9740796 = idf(docFreq=112, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.117785156 = weight(abstract_txt:large in 4087) [ClassicSimilarity], result of:
            0.117785156 = score(doc=4087,freq=2.0), product of:
              0.17141333 = queryWeight, product of:
                1.6754509 = boost
                4.4423513 = idf(docFreq=1420, maxDocs=44421)
                0.02303032 = queryNorm
              0.6871412 = fieldWeight in 4087, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4423513 = idf(docFreq=1420, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.16362043 = weight(abstract_txt:conference in 4087) [ClassicSimilarity], result of:
            0.16362043 = score(doc=4087,freq=1.0), product of:
              0.2688763 = queryWeight, product of:
                2.0983875 = boost
                5.5637407 = idf(docFreq=462, maxDocs=44421)
                0.02303032 = queryNorm
              0.60853416 = fieldWeight in 4087, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5637407 = idf(docFreq=462, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.22976938 = weight(abstract_txt:techniques in 4087) [ClassicSimilarity], result of:
            0.22976938 = score(doc=4087,freq=3.0), product of:
              0.26761615 = queryWeight, product of:
                2.5639596 = boost
                4.5321174 = idf(docFreq=1298, maxDocs=44421)
                0.02303032 = queryNorm
              0.85857815 = fieldWeight in 4087, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.5321174 = idf(docFreq=1298, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
          0.18890889 = weight(abstract_txt:groups in 4087) [ClassicSimilarity], result of:
            0.18890889 = score(doc=4087,freq=1.0), product of:
              0.3387346 = queryWeight, product of:
                2.884595 = boost
                5.09888 = idf(docFreq=736, maxDocs=44421)
                0.02303032 = queryNorm
              0.55768996 = fieldWeight in 4087, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.09888 = idf(docFreq=736, maxDocs=44421)
                0.109375 = fieldNorm(doc=4087)
        0.52 = coord(13/25)
    
  4. ¬The Sixth Text Retrieval Conference (TREC-6) (1998) 0.85
    0.8508965 = sum of:
      0.8508965 = product of:
        1.6363394 = sum of:
          0.07631063 = weight(abstract_txt:thesauri in 5476) [ClassicSimilarity], result of:
            0.07631063 = score(doc=5476,freq=1.0), product of:
              0.1283436 = queryWeight, product of:
                1.0251361 = boost
                5.4361663 = idf(docFreq=525, maxDocs=44421)
                0.02303032 = queryNorm
              0.5945807 = fieldWeight in 5476, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4361663 = idf(docFreq=525, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.0838749 = weight(abstract_txt:compare in 5476) [ClassicSimilarity], result of:
            0.0838749 = score(doc=5476,freq=1.0), product of:
              0.13669068 = queryWeight, product of:
                1.0579469 = boost
                5.6101575 = idf(docFreq=441, maxDocs=44421)
                0.02303032 = queryNorm
              0.613611 = fieldWeight in 5476, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6101575 = idf(docFreq=441, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.09577018 = weight(abstract_txt:advanced in 5476) [ClassicSimilarity], result of:
            0.09577018 = score(doc=5476,freq=1.0), product of:
              0.1493268 = queryWeight, product of:
                1.1057662 = boost
                5.863737 = idf(docFreq=342, maxDocs=44421)
                0.02303032 = queryNorm
              0.6413462 = fieldWeight in 5476, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.863737 = idf(docFreq=342, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.099526376 = weight(abstract_txt:feedback in 5476) [ClassicSimilarity], result of:
            0.099526376 = score(doc=5476,freq=1.0), product of:
              0.1532062 = queryWeight, product of:
                1.1200376 = boost
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.02303032 = queryNorm
              0.6496237 = fieldWeight in 5476, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.10477216 = weight(abstract_txt:matching in 5476) [ClassicSimilarity], result of:
            0.10477216 = score(doc=5476,freq=1.0), product of:
              0.1585434 = queryWeight, product of:
                1.1393797 = boost
                6.0419855 = idf(docFreq=286, maxDocs=44421)
                0.02303032 = queryNorm
              0.6608422 = fieldWeight in 5476, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0419855 = idf(docFreq=286, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.115283415 = weight(abstract_txt:pattern in 5476) [ClassicSimilarity], result of:
            0.115283415 = score(doc=5476,freq=1.0), product of:
              0.16897745 = queryWeight, product of:
                1.1762748 = boost
                6.2376356 = idf(docFreq=235, maxDocs=44421)
                0.02303032 = queryNorm
              0.6822414 = fieldWeight in 5476, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2376356 = idf(docFreq=235, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.14313915 = weight(abstract_txt:trec in 5476) [ClassicSimilarity], result of:
            0.14313915 = score(doc=5476,freq=1.0), product of:
              0.19520451 = queryWeight, product of:
                1.2642685 = boost
                6.704255 = idf(docFreq=147, maxDocs=44421)
                0.02303032 = queryNorm
              0.7332779 = fieldWeight in 5476, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.704255 = idf(docFreq=147, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.056451898 = weight(abstract_txt:retrieval in 5476) [ClassicSimilarity], result of:
            0.056451898 = score(doc=5476,freq=2.0), product of:
              0.104979195 = queryWeight, product of:
                1.3111762 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.02303032 = queryNorm
              0.5377437 = fieldWeight in 5476, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.16112672 = weight(abstract_txt:weighting in 5476) [ClassicSimilarity], result of:
            0.16112672 = score(doc=5476,freq=1.0), product of:
              0.21123339 = queryWeight, product of:
                1.3151512 = boost
                6.9740796 = idf(docFreq=112, maxDocs=44421)
                0.02303032 = queryNorm
              0.76278996 = fieldWeight in 5476, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9740796 = idf(docFreq=112, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.117785156 = weight(abstract_txt:large in 5476) [ClassicSimilarity], result of:
            0.117785156 = score(doc=5476,freq=2.0), product of:
              0.17141333 = queryWeight, product of:
                1.6754509 = boost
                4.4423513 = idf(docFreq=1420, maxDocs=44421)
                0.02303032 = queryNorm
              0.6871412 = fieldWeight in 5476, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4423513 = idf(docFreq=1420, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.16362043 = weight(abstract_txt:conference in 5476) [ClassicSimilarity], result of:
            0.16362043 = score(doc=5476,freq=1.0), product of:
              0.2688763 = queryWeight, product of:
                2.0983875 = boost
                5.5637407 = idf(docFreq=462, maxDocs=44421)
                0.02303032 = queryNorm
              0.60853416 = fieldWeight in 5476, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5637407 = idf(docFreq=462, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.22976938 = weight(abstract_txt:techniques in 5476) [ClassicSimilarity], result of:
            0.22976938 = score(doc=5476,freq=3.0), product of:
              0.26761615 = queryWeight, product of:
                2.5639596 = boost
                4.5321174 = idf(docFreq=1298, maxDocs=44421)
                0.02303032 = queryNorm
              0.85857815 = fieldWeight in 5476, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.5321174 = idf(docFreq=1298, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
          0.18890889 = weight(abstract_txt:groups in 5476) [ClassicSimilarity], result of:
            0.18890889 = score(doc=5476,freq=1.0), product of:
              0.3387346 = queryWeight, product of:
                2.884595 = boost
                5.09888 = idf(docFreq=736, maxDocs=44421)
                0.02303032 = queryNorm
              0.55768996 = fieldWeight in 5476, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.09888 = idf(docFreq=736, maxDocs=44421)
                0.109375 = fieldNorm(doc=5476)
        0.52 = coord(13/25)
    
  5. Harman, D.: ¬The Text REtrieval Conferences (TRECs) : providing a test-bed for information retrieval systems (1998) 0.71
    0.7102709 = sum of:
      0.7102709 = product of:
        1.4797311 = sum of:
          0.0654091 = weight(abstract_txt:thesauri in 2314) [ClassicSimilarity], result of:
            0.0654091 = score(doc=2314,freq=1.0), product of:
              0.1283436 = queryWeight, product of:
                1.0251361 = boost
                5.4361663 = idf(docFreq=525, maxDocs=44421)
                0.02303032 = queryNorm
              0.5096406 = fieldWeight in 2314, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4361663 = idf(docFreq=525, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.116091 = weight(abstract_txt:advanced in 2314) [ClassicSimilarity], result of:
            0.116091 = score(doc=2314,freq=2.0), product of:
              0.1493268 = queryWeight, product of:
                1.1057662 = boost
                5.863737 = idf(docFreq=342, maxDocs=44421)
                0.02303032 = queryNorm
              0.7774291 = fieldWeight in 2314, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.863737 = idf(docFreq=342, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.08530832 = weight(abstract_txt:feedback in 2314) [ClassicSimilarity], result of:
            0.08530832 = score(doc=2314,freq=1.0), product of:
              0.1532062 = queryWeight, product of:
                1.1200376 = boost
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.02303032 = queryNorm
              0.5568203 = fieldWeight in 2314, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.08980471 = weight(abstract_txt:matching in 2314) [ClassicSimilarity], result of:
            0.08980471 = score(doc=2314,freq=1.0), product of:
              0.1585434 = queryWeight, product of:
                1.1393797 = boost
                6.0419855 = idf(docFreq=286, maxDocs=44421)
                0.02303032 = queryNorm
              0.5664362 = fieldWeight in 2314, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0419855 = idf(docFreq=286, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.09881435 = weight(abstract_txt:pattern in 2314) [ClassicSimilarity], result of:
            0.09881435 = score(doc=2314,freq=1.0), product of:
              0.16897745 = queryWeight, product of:
                1.1762748 = boost
                6.2376356 = idf(docFreq=235, maxDocs=44421)
                0.02303032 = queryNorm
              0.5847783 = fieldWeight in 2314, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2376356 = idf(docFreq=235, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.10974917 = weight(abstract_txt:sophisticated in 2314) [ClassicSimilarity], result of:
            0.10974917 = score(doc=2314,freq=1.0), product of:
              0.18122421 = queryWeight, product of:
                1.2181549 = boost
                6.4597206 = idf(docFreq=188, maxDocs=44421)
                0.02303032 = queryNorm
              0.6055988 = fieldWeight in 2314, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4597206 = idf(docFreq=188, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.21250653 = weight(abstract_txt:trec in 2314) [ClassicSimilarity], result of:
            0.21250653 = score(doc=2314,freq=3.0), product of:
              0.19520451 = queryWeight, product of:
                1.2642685 = boost
                6.704255 = idf(docFreq=147, maxDocs=44421)
                0.02303032 = queryNorm
              1.0886353 = fieldWeight in 2314, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.704255 = idf(docFreq=147, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.05926214 = weight(abstract_txt:retrieval in 2314) [ClassicSimilarity], result of:
            0.05926214 = score(doc=2314,freq=3.0), product of:
              0.104979195 = queryWeight, product of:
                1.3111762 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.02303032 = queryNorm
              0.5645132 = fieldWeight in 2314, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.13810861 = weight(abstract_txt:weighting in 2314) [ClassicSimilarity], result of:
            0.13810861 = score(doc=2314,freq=1.0), product of:
              0.21123339 = queryWeight, product of:
                1.3151512 = boost
                6.9740796 = idf(docFreq=112, maxDocs=44421)
                0.02303032 = queryNorm
              0.65382 = fieldWeight in 2314, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9740796 = idf(docFreq=112, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.10095871 = weight(abstract_txt:large in 2314) [ClassicSimilarity], result of:
            0.10095871 = score(doc=2314,freq=2.0), product of:
              0.17141333 = queryWeight, product of:
                1.6754509 = boost
                4.4423513 = idf(docFreq=1420, maxDocs=44421)
                0.02303032 = queryNorm
              0.5889782 = fieldWeight in 2314, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4423513 = idf(docFreq=1420, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.24291334 = weight(abstract_txt:conference in 2314) [ClassicSimilarity], result of:
            0.24291334 = score(doc=2314,freq=3.0), product of:
              0.2688763 = queryWeight, product of:
                2.0983875 = boost
                5.5637407 = idf(docFreq=462, maxDocs=44421)
                0.02303032 = queryNorm
              0.9034389 = fieldWeight in 2314, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.5637407 = idf(docFreq=462, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
          0.16080508 = weight(abstract_txt:techniques in 2314) [ClassicSimilarity], result of:
            0.16080508 = score(doc=2314,freq=2.0), product of:
              0.26761615 = queryWeight, product of:
                2.5639596 = boost
                4.5321174 = idf(docFreq=1298, maxDocs=44421)
                0.02303032 = queryNorm
              0.60087955 = fieldWeight in 2314, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.5321174 = idf(docFreq=1298, maxDocs=44421)
                0.09375 = fieldNorm(doc=2314)
        0.48 = coord(12/25)