Document (#27581)

Author
Blair, D.C.
Title
¬The challenge of commercial document retrieval : Part I: Major issues, and a framework based on search exhaustivity, determinacy of representation and document collection size
Source
Information processing and management. 38(2002) no.2, S.273-291
Year
2002
Abstract
With the growing focus on what is collectively known as "knowledge management", a shift continues to take place in commercial information system development: a shift away from the well-understood data retrieval/database model, to the more complex and challenging development of commercial document/information retrieval models. While document retrieval has had a long and rich legacy of research, its impact on commercial applications has been modest. At the enterprise level most large organizations have little understanding of, or commitment to, high quality document access and management. Part of the reason for this is that we still do not have a good framework for understanding the major factors which affect the performance of large-scale corporate document retrieval systems. The thesis of this discussion is that document retrieval - specifically, access to intellectual content - is a complex process which is most strongly influenced by three factors: the size of the document collection; the type of search (exhaustive, existence or sample); and, the determinacy of document representation. Collectively, these factors can be used to provide a useful framework for, or taxonomy of, document retrieval, and highlight some of the fundamental issues facing the design and development of commercial document retrieval systems. This is the first of a series of three articles. Part II (D.C. Blair, The challenge of commercial document retrieval. Part II. A strategy for document searching based on identifiable document partitions, Information Processing and Management, 2001b, this issue) will discuss the implications of this framework for search strategy, and Part III (D.C. Blair, Some thoughts on the reported results of Text REtrieval Conference (TREC), Information Processing and Management, 2002, forthcoming) will consider the importance of the TREC results for our understanding of operating information retrieval systems.

Similar documents (author)

  1. Blair, D.C.: ¬An extended relational document retrieval model (1988) 5.62
    5.6180234 = sum of:
      5.6180234 = weight(author_txt:blair in 5281) [ClassicSimilarity], result of:
        5.6180234 = fieldWeight in 5281, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.988837 = idf(docFreq=14, maxDocs=44218)
          0.625 = fieldNorm(doc=5281)
    
  2. Blair, D.C.: Full text retrieval : Evaluation and implications (1986) 5.62
    5.6180234 = sum of:
      5.6180234 = weight(author_txt:blair in 2047) [ClassicSimilarity], result of:
        5.6180234 = fieldWeight in 2047, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.988837 = idf(docFreq=14, maxDocs=44218)
          0.625 = fieldNorm(doc=2047)
    
  3. Blair, D.C.: STAIRS Redux : thoughts on the STAIRS evaluation, ten years after (1996) 5.62
    5.6180234 = sum of:
      5.6180234 = weight(author_txt:blair in 3002) [ClassicSimilarity], result of:
        5.6180234 = fieldWeight in 3002, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.988837 = idf(docFreq=14, maxDocs=44218)
          0.625 = fieldNorm(doc=3002)
    
  4. Blair, D.C.: Knowledge management : hype, hope, or help? (2002) 5.62
    5.6180234 = sum of:
      5.6180234 = weight(author_txt:blair in 982) [ClassicSimilarity], result of:
        5.6180234 = fieldWeight in 982, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.988837 = idf(docFreq=14, maxDocs=44218)
          0.625 = fieldNorm(doc=982)
    
  5. Blair, D.C.: ¬The challenge of commercial document retrieval : Part II: a strategy for document searching based on identifiable document partitions (2002) 5.62
    5.6180234 = sum of:
      5.6180234 = weight(author_txt:blair in 2576) [ClassicSimilarity], result of:
        5.6180234 = fieldWeight in 2576, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.988837 = idf(docFreq=14, maxDocs=44218)
          0.625 = fieldNorm(doc=2576)
    

Similar documents (content)

  1. Blair, D.C.: ¬The challenge of commercial document retrieval : Part II: a strategy for document searching based on identifiable document partitions (2002) 0.53
    0.5280712 = sum of:
      0.5280712 = product of:
        1.320178 = sum of:
          0.043644708 = weight(abstract_txt:major in 2576) [ClassicSimilarity], result of:
            0.043644708 = score(doc=2576,freq=1.0), product of:
              0.085697435 = queryWeight, product of:
                4.6563506 = idf(docFreq=1141, maxDocs=44218)
                0.01840442 = queryNorm
              0.5092884 = fieldWeight in 2576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6563506 = idf(docFreq=1141, maxDocs=44218)
                0.109375 = fieldNorm(doc=2576)
          0.17920831 = weight(abstract_txt:partitions in 2576) [ClassicSimilarity], result of:
            0.17920831 = score(doc=2576,freq=1.0), product of:
              0.17441167 = queryWeight, product of:
                1.0087624 = boost
                9.394302 = idf(docFreq=9, maxDocs=44218)
                0.01840442 = queryNorm
              1.0275018 = fieldWeight in 2576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.394302 = idf(docFreq=9, maxDocs=44218)
                0.109375 = fieldNorm(doc=2576)
          0.05167776 = weight(abstract_txt:representation in 2576) [ClassicSimilarity], result of:
            0.05167776 = score(doc=2576,freq=1.0), product of:
              0.095914125 = queryWeight, product of:
                1.0579311 = boost
                4.926098 = idf(docFreq=871, maxDocs=44218)
                0.01840442 = queryNorm
              0.53879195 = fieldWeight in 2576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.926098 = idf(docFreq=871, maxDocs=44218)
                0.109375 = fieldNorm(doc=2576)
          0.031742096 = weight(abstract_txt:search in 2576) [ClassicSimilarity], result of:
            0.031742096 = score(doc=2576,freq=1.0), product of:
              0.0793355 = queryWeight, product of:
                1.1784075 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.01840442 = queryNorm
              0.4000995 = fieldWeight in 2576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.109375 = fieldNorm(doc=2576)
          0.088551275 = weight(abstract_txt:size in 2576) [ClassicSimilarity], result of:
            0.088551275 = score(doc=2576,freq=1.0), product of:
              0.13734409 = queryWeight, product of:
                1.2659632 = boost
                5.8947687 = idf(docFreq=330, maxDocs=44218)
                0.01840442 = queryNorm
              0.64474034 = fieldWeight in 2576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8947687 = idf(docFreq=330, maxDocs=44218)
                0.109375 = fieldNorm(doc=2576)
          0.021474892 = weight(abstract_txt:this in 2576) [ClassicSimilarity], result of:
            0.021474892 = score(doc=2576,freq=2.0), product of:
              0.057535704 = queryWeight, product of:
                1.2955519 = boost
                2.4130175 = idf(docFreq=10762, maxDocs=44218)
                0.01840442 = queryNorm
              0.3732446 = fieldWeight in 2576, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4130175 = idf(docFreq=10762, maxDocs=44218)
                0.109375 = fieldNorm(doc=2576)
          0.13714573 = weight(abstract_txt:factors in 2576) [ClassicSimilarity], result of:
            0.13714573 = score(doc=2576,freq=3.0), product of:
              0.1459234 = queryWeight, product of:
                1.5981746 = boost
                4.9611073 = idf(docFreq=841, maxDocs=44218)
                0.01840442 = queryNorm
              0.93984735 = fieldWeight in 2576, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.9611073 = idf(docFreq=841, maxDocs=44218)
                0.109375 = fieldNorm(doc=2576)
          0.14688797 = weight(abstract_txt:part in 2576) [ClassicSimilarity], result of:
            0.14688797 = score(doc=2576,freq=2.0), product of:
              0.20731989 = queryWeight, product of:
                2.4592721 = boost
                4.580493 = idf(docFreq=1231, maxDocs=44218)
                0.01840442 = queryNorm
              0.70850885 = fieldWeight in 2576, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.580493 = idf(docFreq=1231, maxDocs=44218)
                0.109375 = fieldNorm(doc=2576)
          0.1411201 = weight(abstract_txt:retrieval in 2576) [ClassicSimilarity], result of:
            0.1411201 = score(doc=2576,freq=2.0), product of:
              0.26253283 = queryWeight, product of:
                4.104774 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.01840442 = queryNorm
              0.53753316 = fieldWeight in 2576, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.109375 = fieldNorm(doc=2576)
          0.47872525 = weight(abstract_txt:document in 2576) [ClassicSimilarity], result of:
            0.47872525 = score(doc=2576,freq=4.0), product of:
              0.50982016 = queryWeight, product of:
                6.4531775 = boost
                4.2926083 = idf(docFreq=1642, maxDocs=44218)
                0.01840442 = queryNorm
              0.93900806 = fieldWeight in 2576, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.2926083 = idf(docFreq=1642, maxDocs=44218)
                0.109375 = fieldNorm(doc=2576)
        0.4 = coord(10/25)
    
  2. Brier, S.: Cybersemiotics : a new interdisciplinary development applied to the problems of knowledge organisation and document retrieval in information science (1996) 0.26
    0.26168075 = sum of:
      0.26168075 = product of:
        0.594729 = sum of:
          0.02214761 = weight(abstract_txt:representation in 5379) [ClassicSimilarity], result of:
            0.02214761 = score(doc=5379,freq=1.0), product of:
              0.095914125 = queryWeight, product of:
                1.0579311 = boost
                4.926098 = idf(docFreq=871, maxDocs=44218)
                0.01840442 = queryNorm
              0.23091084 = fieldWeight in 5379, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.926098 = idf(docFreq=871, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
          0.022225259 = weight(abstract_txt:processing in 5379) [ClassicSimilarity], result of:
            0.022225259 = score(doc=5379,freq=1.0), product of:
              0.09613817 = queryWeight, product of:
                1.059166 = boost
                4.931848 = idf(docFreq=866, maxDocs=44218)
                0.01840442 = queryNorm
              0.23118037 = fieldWeight in 5379, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.931848 = idf(docFreq=866, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
          0.024681672 = weight(abstract_txt:systems in 5379) [ClassicSimilarity], result of:
            0.024681672 = score(doc=5379,freq=5.0), product of:
              0.06901679 = queryWeight, product of:
                1.0991048 = boost
                3.4118783 = idf(docFreq=3963, maxDocs=44218)
                0.01840442 = queryNorm
              0.35761836 = fieldWeight in 5379, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.4118783 = idf(docFreq=3963, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
          0.022386253 = weight(abstract_txt:development in 5379) [ClassicSimilarity], result of:
            0.022386253 = score(doc=5379,freq=2.0), product of:
              0.08776863 = queryWeight, product of:
                1.2394568 = boost
                3.8475635 = idf(docFreq=2563, maxDocs=44218)
                0.01840442 = queryNorm
              0.25505984 = fieldWeight in 5379, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.8475635 = idf(docFreq=2563, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
          0.01455205 = weight(abstract_txt:this in 5379) [ClassicSimilarity], result of:
            0.01455205 = score(doc=5379,freq=5.0), product of:
              0.057535704 = queryWeight, product of:
                1.2955519 = boost
                2.4130175 = idf(docFreq=10762, maxDocs=44218)
                0.01840442 = queryNorm
              0.2529221 = fieldWeight in 5379, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                2.4130175 = idf(docFreq=10762, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
          0.017388508 = weight(abstract_txt:information in 5379) [ClassicSimilarity], result of:
            0.017388508 = score(doc=5379,freq=7.0), product of:
              0.057914436 = queryWeight, product of:
                1.2998089 = boost
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.01840442 = queryNorm
              0.30024478 = fieldWeight in 5379, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
          0.025938211 = weight(abstract_txt:understanding in 5379) [ClassicSimilarity], result of:
            0.025938211 = score(doc=5379,freq=1.0), product of:
              0.1219893 = queryWeight, product of:
                1.4612435 = boost
                4.5360413 = idf(docFreq=1287, maxDocs=44218)
                0.01840442 = queryNorm
              0.21262693 = fieldWeight in 5379, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5360413 = idf(docFreq=1287, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
          0.034925323 = weight(abstract_txt:framework in 5379) [ClassicSimilarity], result of:
            0.034925323 = score(doc=5379,freq=1.0), product of:
              0.16371995 = queryWeight, product of:
                1.954708 = boost
                4.550903 = idf(docFreq=1268, maxDocs=44218)
                0.01840442 = queryNorm
              0.21332356 = fieldWeight in 5379, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.550903 = idf(docFreq=1268, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
          0.1448361 = weight(abstract_txt:blair in 5379) [ClassicSimilarity], result of:
            0.1448361 = score(doc=5379,freq=1.0), product of:
              0.33541504 = queryWeight, product of:
                1.9783692 = boost
                9.211981 = idf(docFreq=11, maxDocs=44218)
                0.01840442 = queryNorm
              0.4318116 = fieldWeight in 5379, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.211981 = idf(docFreq=11, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
          0.060480043 = weight(abstract_txt:retrieval in 5379) [ClassicSimilarity], result of:
            0.060480043 = score(doc=5379,freq=2.0), product of:
              0.26253283 = queryWeight, product of:
                4.104774 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.01840442 = queryNorm
              0.23037136 = fieldWeight in 5379, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
          0.20516796 = weight(abstract_txt:document in 5379) [ClassicSimilarity], result of:
            0.20516796 = score(doc=5379,freq=4.0), product of:
              0.50982016 = queryWeight, product of:
                6.4531775 = boost
                4.2926083 = idf(docFreq=1642, maxDocs=44218)
                0.01840442 = queryNorm
              0.40243202 = fieldWeight in 5379, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.2926083 = idf(docFreq=1642, maxDocs=44218)
                0.046875 = fieldNorm(doc=5379)
        0.44 = coord(11/25)
    
  3. TREC: experiment and evaluation in information retrieval (2005) 0.26
    0.25973752 = sum of:
      0.25973752 = product of:
        0.72149307 = sum of:
          0.029633678 = weight(abstract_txt:processing in 636) [ClassicSimilarity], result of:
            0.029633678 = score(doc=636,freq=1.0), product of:
              0.09613817 = queryWeight, product of:
                1.059166 = boost
                4.931848 = idf(docFreq=866, maxDocs=44218)
                0.01840442 = queryNorm
              0.3082405 = fieldWeight in 636, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.931848 = idf(docFreq=866, maxDocs=44218)
                0.0625 = fieldNorm(doc=636)
          0.014717306 = weight(abstract_txt:systems in 636) [ClassicSimilarity], result of:
            0.014717306 = score(doc=636,freq=1.0), product of:
              0.06901679 = queryWeight, product of:
                1.0991048 = boost
                3.4118783 = idf(docFreq=3963, maxDocs=44218)
                0.01840442 = queryNorm
              0.2132424 = fieldWeight in 636, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4118783 = idf(docFreq=3963, maxDocs=44218)
                0.0625 = fieldNorm(doc=636)
          0.01813834 = weight(abstract_txt:search in 636) [ClassicSimilarity], result of:
            0.01813834 = score(doc=636,freq=1.0), product of:
              0.0793355 = queryWeight, product of:
                1.1784075 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.01840442 = queryNorm
              0.22862828 = fieldWeight in 636, 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=636)
          0.012271366 = weight(abstract_txt:this in 636) [ClassicSimilarity], result of:
            0.012271366 = score(doc=636,freq=2.0), product of:
              0.057535704 = queryWeight, product of:
                1.2955519 = boost
                2.4130175 = idf(docFreq=10762, maxDocs=44218)
                0.01840442 = queryNorm
              0.21328263 = fieldWeight in 636, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4130175 = idf(docFreq=10762, maxDocs=44218)
                0.0625 = fieldNorm(doc=636)
          0.01239273 = weight(abstract_txt:information in 636) [ClassicSimilarity], result of:
            0.01239273 = score(doc=636,freq=2.0), product of:
              0.057914436 = queryWeight, product of:
                1.2998089 = boost
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.01840442 = queryNorm
              0.21398345 = fieldWeight in 636, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.0625 = fieldNorm(doc=636)
          0.21011773 = weight(abstract_txt:trec in 636) [ClassicSimilarity], result of:
            0.21011773 = score(doc=636,freq=8.0), product of:
              0.17741239 = queryWeight, product of:
                1.4388252 = boost
                6.699675 = idf(docFreq=147, maxDocs=44218)
                0.01840442 = queryNorm
              1.1843464 = fieldWeight in 636, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                6.699675 = idf(docFreq=147, maxDocs=44218)
                0.0625 = fieldNorm(doc=636)
          0.08393598 = weight(abstract_txt:part in 636) [ClassicSimilarity], result of:
            0.08393598 = score(doc=636,freq=2.0), product of:
              0.20731989 = queryWeight, product of:
                2.4592721 = boost
                4.580493 = idf(docFreq=1231, maxDocs=44218)
                0.01840442 = queryNorm
              0.4048622 = fieldWeight in 636, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.580493 = idf(docFreq=1231, maxDocs=44218)
                0.0625 = fieldNorm(doc=636)
          0.14275897 = weight(abstract_txt:commercial in 636) [ClassicSimilarity], result of:
            0.14275897 = score(doc=636,freq=1.0), product of:
              0.39550152 = queryWeight, product of:
                3.720924 = boost
                5.7753086 = idf(docFreq=372, maxDocs=44218)
                0.01840442 = queryNorm
              0.3609568 = fieldWeight in 636, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7753086 = idf(docFreq=372, maxDocs=44218)
                0.0625 = fieldNorm(doc=636)
          0.197527 = weight(abstract_txt:retrieval in 636) [ClassicSimilarity], result of:
            0.197527 = score(doc=636,freq=12.0), product of:
              0.26253283 = queryWeight, product of:
                4.104774 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.01840442 = queryNorm
              0.7523897 = fieldWeight in 636, product of:
                3.4641016 = tf(freq=12.0), with freq of:
                  12.0 = termFreq=12.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.0625 = fieldNorm(doc=636)
        0.36 = coord(9/25)
    
  4. Mohan, K.C.: Boolean and nearest neighbour text searching in a multi-strategy retrieval system (1996) 0.23
    0.22605379 = sum of:
      0.22605379 = product of:
        0.56513447 = sum of:
          0.043644708 = weight(abstract_txt:major in 7255) [ClassicSimilarity], result of:
            0.043644708 = score(doc=7255,freq=1.0), product of:
              0.085697435 = queryWeight, product of:
                4.6563506 = idf(docFreq=1141, maxDocs=44218)
                0.01840442 = queryNorm
              0.5092884 = fieldWeight in 7255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6563506 = idf(docFreq=1141, maxDocs=44218)
                0.109375 = fieldNorm(doc=7255)
          0.05185894 = weight(abstract_txt:processing in 7255) [ClassicSimilarity], result of:
            0.05185894 = score(doc=7255,freq=1.0), product of:
              0.09613817 = queryWeight, product of:
                1.059166 = boost
                4.931848 = idf(docFreq=866, maxDocs=44218)
                0.01840442 = queryNorm
              0.5394209 = fieldWeight in 7255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.931848 = idf(docFreq=866, maxDocs=44218)
                0.109375 = fieldNorm(doc=7255)
          0.025755286 = weight(abstract_txt:systems in 7255) [ClassicSimilarity], result of:
            0.025755286 = score(doc=7255,freq=1.0), product of:
              0.06901679 = queryWeight, product of:
                1.0991048 = boost
                3.4118783 = idf(docFreq=3963, maxDocs=44218)
                0.01840442 = queryNorm
              0.3731742 = fieldWeight in 7255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4118783 = idf(docFreq=3963, maxDocs=44218)
                0.109375 = fieldNorm(doc=7255)
          0.031742096 = weight(abstract_txt:search in 7255) [ClassicSimilarity], result of:
            0.031742096 = score(doc=7255,freq=1.0), product of:
              0.0793355 = queryWeight, product of:
                1.1784075 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.01840442 = queryNorm
              0.4000995 = fieldWeight in 7255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.109375 = fieldNorm(doc=7255)
          0.08147237 = weight(abstract_txt:strategy in 7255) [ClassicSimilarity], result of:
            0.08147237 = score(doc=7255,freq=1.0), product of:
              0.12992328 = queryWeight, product of:
                1.2312878 = boost
                5.733308 = idf(docFreq=388, maxDocs=44218)
                0.01840442 = queryNorm
              0.62708056 = fieldWeight in 7255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.733308 = idf(docFreq=388, maxDocs=44218)
                0.109375 = fieldNorm(doc=7255)
          0.036935434 = weight(abstract_txt:development in 7255) [ClassicSimilarity], result of:
            0.036935434 = score(doc=7255,freq=1.0), product of:
              0.08776863 = queryWeight, product of:
                1.2394568 = boost
                3.8475635 = idf(docFreq=2563, maxDocs=44218)
                0.01840442 = queryNorm
              0.42082727 = fieldWeight in 7255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.8475635 = idf(docFreq=2563, maxDocs=44218)
                0.109375 = fieldNorm(doc=7255)
          0.09036925 = weight(abstract_txt:challenge in 7255) [ClassicSimilarity], result of:
            0.09036925 = score(doc=7255,freq=1.0), product of:
              0.13921753 = queryWeight, product of:
                1.2745681 = boost
                5.934836 = idf(docFreq=317, maxDocs=44218)
                0.01840442 = queryNorm
              0.64912266 = fieldWeight in 7255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.934836 = idf(docFreq=317, maxDocs=44218)
                0.109375 = fieldNorm(doc=7255)
          0.015185041 = weight(abstract_txt:this in 7255) [ClassicSimilarity], result of:
            0.015185041 = score(doc=7255,freq=1.0), product of:
              0.057535704 = queryWeight, product of:
                1.2955519 = boost
                2.4130175 = idf(docFreq=10762, maxDocs=44218)
                0.01840442 = queryNorm
              0.2639238 = fieldWeight in 7255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4130175 = idf(docFreq=10762, maxDocs=44218)
                0.109375 = fieldNorm(doc=7255)
          0.015335222 = weight(abstract_txt:information in 7255) [ClassicSimilarity], result of:
            0.015335222 = score(doc=7255,freq=1.0), product of:
              0.057914436 = queryWeight, product of:
                1.2998089 = boost
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.01840442 = queryNorm
              0.264791 = fieldWeight in 7255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.109375 = fieldNorm(doc=7255)
          0.17283612 = weight(abstract_txt:retrieval in 7255) [ClassicSimilarity], result of:
            0.17283612 = score(doc=7255,freq=3.0), product of:
              0.26253283 = queryWeight, product of:
                4.104774 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.01840442 = queryNorm
              0.658341 = fieldWeight in 7255, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.109375 = fieldNorm(doc=7255)
        0.4 = coord(10/25)
    
  5. Voorhees, E.M.; Harman, D.K.: ¬The Text REtrieval Conference (2005) 0.22
    0.22248311 = sum of:
      0.22248311 = product of:
        0.6180086 = sum of:
          0.02699816 = weight(abstract_txt:major in 5082) [ClassicSimilarity], result of:
            0.02699816 = score(doc=5082,freq=3.0), product of:
              0.085697435 = queryWeight, product of:
                4.6563506 = idf(docFreq=1141, maxDocs=44218)
                0.01840442 = queryNorm
              0.31504047 = fieldWeight in 5082, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.6563506 = idf(docFreq=1141, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5082)
          0.013008384 = weight(abstract_txt:systems in 5082) [ClassicSimilarity], result of:
            0.013008384 = score(doc=5082,freq=2.0), product of:
              0.06901679 = queryWeight, product of:
                1.0991048 = boost
                3.4118783 = idf(docFreq=3963, maxDocs=44218)
                0.01840442 = queryNorm
              0.18848144 = fieldWeight in 5082, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4118783 = idf(docFreq=3963, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5082)
          0.011336463 = weight(abstract_txt:search in 5082) [ClassicSimilarity], result of:
            0.011336463 = score(doc=5082,freq=1.0), product of:
              0.0793355 = queryWeight, product of:
                1.1784075 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.01840442 = queryNorm
              0.14289267 = fieldWeight in 5082, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5082)
          0.010846457 = weight(abstract_txt:this in 5082) [ClassicSimilarity], result of:
            0.010846457 = score(doc=5082,freq=4.0), product of:
              0.057535704 = queryWeight, product of:
                1.2955519 = boost
                2.4130175 = idf(docFreq=10762, maxDocs=44218)
                0.01840442 = queryNorm
              0.18851699 = fieldWeight in 5082, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                2.4130175 = idf(docFreq=10762, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5082)
          0.012246642 = weight(abstract_txt:information in 5082) [ClassicSimilarity], result of:
            0.012246642 = score(doc=5082,freq=5.0), product of:
              0.057914436 = queryWeight, product of:
                1.2998089 = boost
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.01840442 = queryNorm
              0.21146096 = fieldWeight in 5082, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5082)
          0.19143537 = weight(abstract_txt:trec in 5082) [ClassicSimilarity], result of:
            0.19143537 = score(doc=5082,freq=17.0), product of:
              0.17741239 = queryWeight, product of:
                1.4388252 = boost
                6.699675 = idf(docFreq=147, maxDocs=44218)
                0.01840442 = queryNorm
              1.0790417 = fieldWeight in 5082, product of:
                4.1231055 = tf(freq=17.0), with freq of:
                  17.0 = termFreq=17.0
                6.699675 = idf(docFreq=147, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5082)
          0.064250104 = weight(abstract_txt:part in 5082) [ClassicSimilarity], result of:
            0.064250104 = score(doc=5082,freq=3.0), product of:
              0.20731989 = queryWeight, product of:
                2.4592721 = boost
                4.580493 = idf(docFreq=1231, maxDocs=44218)
                0.01840442 = queryNorm
              0.30990806 = fieldWeight in 5082, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.580493 = idf(docFreq=1231, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5082)
          0.1545411 = weight(abstract_txt:commercial in 5082) [ClassicSimilarity], result of:
            0.1545411 = score(doc=5082,freq=3.0), product of:
              0.39550152 = queryWeight, product of:
                3.720924 = boost
                5.7753086 = idf(docFreq=372, maxDocs=44218)
                0.01840442 = queryNorm
              0.3907472 = fieldWeight in 5082, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.7753086 = idf(docFreq=372, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5082)
          0.13334596 = weight(abstract_txt:retrieval in 5082) [ClassicSimilarity], result of:
            0.13334596 = score(doc=5082,freq=14.0), product of:
              0.26253283 = queryWeight, product of:
                4.104774 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.01840442 = queryNorm
              0.5079211 = fieldWeight in 5082, product of:
                3.7416575 = tf(freq=14.0), with freq of:
                  14.0 = termFreq=14.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5082)
        0.36 = coord(9/25)