Document (#28685)

Author
Bhavnani, S.K.
Title
Why is it difficult to find comprehensive information? : implications of information scatter for search and design
Source
Journal of the American Society for Information Science and Technology. 56(2005) no.9, S.989-1003
Year
2005
Abstract
The rapid development of Web sites providing extensive coverage of a topic, coupled with the development of powerful search engines (designed to help users find such Web sites), suggests that users can easily find comprehensive information about a topic. In domains such as consumer healthcare, finding comprehensive information about a topic is critical as it can improve a patient's judgment in making healthcare decisions, and can encourage higher compliance with treatment. However, recent studies show that despite using powerful search engines, many healthcare information seekers have difficulty finding comprehensive information even for narrow healthcare topics because the relevant information is scattered across many Web sites. To date, no studies have analyzed how facts related to a search topic are distributed across relevant Web pages and Web sites. In this study, the distribution of facts related to five common healthcare topics across high-quality sites is analyzed, and the reasons underlying those distributions are explored. The analysis revealed the existence of few pages that had many facts, many pages that had few facts, and no single page or site that provided all the facts. While such a distribution conforms to other information-related phenomena, a deeper analysis revealed that the distributions were caused by a trade-off between depth and breadth, leading to the existence of general, specialized, and sparse pages. Furthermore, the results helped to make explicit the knowledge needed by searchers to find comprehensive healthcare information, and suggested the motivation to explore distribution-conscious approaches for the development of future search systems, search interfaces, Web page designs, and training.
Theme
Informetrie
Suchtaktik
Field
Medizin

Similar documents (content)

  1. Bhavnani, S.K.; Peck, F.A.: Scatter matters : regularities and implications for the scatter of healthcare information on the Web (2010) 1.11
    1.1085759 = sum of:
      1.1085759 = product of:
        1.5396888 = sum of:
          0.012489113 = weight(abstract_txt:such in 3433) [ClassicSimilarity], result of:
            0.012489113 = score(doc=3433,freq=1.0), product of:
              0.058333177 = queryWeight, product of:
                1.0102632 = boost
                3.4255946 = idf(docFreq=3909, maxDocs=44218)
                0.016855635 = queryNorm
              0.21409966 = fieldWeight in 3433, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4255946 = idf(docFreq=3909, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.030864527 = weight(abstract_txt:engines in 3433) [ClassicSimilarity], result of:
            0.030864527 = score(doc=3433,freq=1.0), product of:
              0.09314736 = queryWeight, product of:
                1.0423567 = boost
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.016855635 = queryNorm
              0.3313516 = fieldWeight in 3433, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.017696245 = weight(abstract_txt:development in 3433) [ClassicSimilarity], result of:
            0.017696245 = score(doc=3433,freq=1.0), product of:
              0.07358941 = queryWeight, product of:
                1.1347086 = boost
                3.8475635 = idf(docFreq=2563, maxDocs=44218)
                0.016855635 = queryNorm
              0.24047272 = fieldWeight in 3433, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.8475635 = idf(docFreq=2563, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.06315806 = weight(abstract_txt:page in 3433) [ClassicSimilarity], result of:
            0.06315806 = score(doc=3433,freq=2.0), product of:
              0.1191626 = queryWeight, product of:
                1.1789654 = boost
                5.9964437 = idf(docFreq=298, maxDocs=44218)
                0.016855635 = queryNorm
              0.53001577 = fieldWeight in 3433, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.9964437 = idf(docFreq=298, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.050994586 = weight(abstract_txt:powerful in 3433) [ClassicSimilarity], result of:
            0.050994586 = score(doc=3433,freq=1.0), product of:
              0.13018078 = queryWeight, product of:
                1.2322662 = boost
                6.2675414 = idf(docFreq=227, maxDocs=44218)
                0.016855635 = queryNorm
              0.39172134 = fieldWeight in 3433, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2675414 = idf(docFreq=227, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.05530534 = weight(abstract_txt:existence in 3433) [ClassicSimilarity], result of:
            0.05530534 = score(doc=3433,freq=1.0), product of:
              0.13741754 = queryWeight, product of:
                1.2660539 = boost
                6.439392 = idf(docFreq=191, maxDocs=44218)
                0.016855635 = queryNorm
              0.402462 = fieldWeight in 3433, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.439392 = idf(docFreq=191, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.01653256 = weight(abstract_txt:that in 3433) [ClassicSimilarity], result of:
            0.01653256 = score(doc=3433,freq=4.0), product of:
              0.055818476 = queryWeight, product of:
                1.397593 = boost
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.016855635 = queryNorm
              0.2961844 = fieldWeight in 3433, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.058181766 = weight(abstract_txt:across in 3433) [ClassicSimilarity], result of:
            0.058181766 = score(doc=3433,freq=2.0), product of:
              0.12914447 = queryWeight, product of:
                1.5031927 = boost
                5.097017 = idf(docFreq=734, maxDocs=44218)
                0.016855635 = queryNorm
              0.45051688 = fieldWeight in 3433, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.097017 = idf(docFreq=734, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.028157426 = weight(abstract_txt:many in 3433) [ClassicSimilarity], result of:
            0.028157426 = score(doc=3433,freq=1.0), product of:
              0.11039162 = queryWeight, product of:
                1.604775 = boost
                4.081096 = idf(docFreq=2029, maxDocs=44218)
                0.016855635 = queryNorm
              0.2550685 = fieldWeight in 3433, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.081096 = idf(docFreq=2029, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.04837439 = weight(abstract_txt:find in 3433) [ClassicSimilarity], result of:
            0.04837439 = score(doc=3433,freq=1.0), product of:
              0.1583499 = queryWeight, product of:
                1.9220072 = boost
                4.887848 = idf(docFreq=905, maxDocs=44218)
                0.016855635 = queryNorm
              0.3054905 = fieldWeight in 3433, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.887848 = idf(docFreq=905, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.07599923 = weight(abstract_txt:topic in 3433) [ClassicSimilarity], result of:
            0.07599923 = score(doc=3433,freq=2.0), product of:
              0.16985184 = queryWeight, product of:
                1.9905874 = boost
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.016855635 = queryNorm
              0.44744426 = fieldWeight in 3433, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.037406363 = weight(abstract_txt:information in 3433) [ClassicSimilarity], result of:
            0.037406363 = score(doc=3433,freq=8.0), product of:
              0.0874048 = queryWeight, product of:
                2.1419287 = boost
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.016855635 = queryNorm
              0.4279669 = fieldWeight in 3433, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.043014858 = weight(abstract_txt:search in 3433) [ClassicSimilarity], result of:
            0.043014858 = score(doc=3433,freq=2.0), product of:
              0.13303734 = queryWeight, product of:
                2.1576376 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.016855635 = queryNorm
              0.3233292 = fieldWeight in 3433, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.12638168 = weight(abstract_txt:pages in 3433) [ClassicSimilarity], result of:
            0.12638168 = score(doc=3433,freq=3.0), product of:
              0.20826828 = queryWeight, product of:
                2.204234 = boost
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.016855635 = queryNorm
              0.60682154 = fieldWeight in 3433, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.11529624 = weight(abstract_txt:sites in 3433) [ClassicSimilarity], result of:
            0.11529624 = score(doc=3433,freq=2.0), product of:
              0.2415707 = queryWeight, product of:
                2.6541364 = boost
                5.399778 = idf(docFreq=542, maxDocs=44218)
                0.016855635 = queryNorm
              0.47727743 = fieldWeight in 3433, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.399778 = idf(docFreq=542, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.12213692 = weight(abstract_txt:comprehensive in 3433) [ClassicSimilarity], result of:
            0.12213692 = score(doc=3433,freq=2.0), product of:
              0.25103375 = queryWeight, product of:
                2.7056222 = boost
                5.5045247 = idf(docFreq=488, maxDocs=44218)
                0.016855635 = queryNorm
              0.48653585 = fieldWeight in 3433, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5045247 = idf(docFreq=488, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.33749208 = weight(abstract_txt:facts in 3433) [ClassicSimilarity], result of:
            0.33749208 = score(doc=3433,freq=3.0), product of:
              0.43182996 = queryWeight, product of:
                3.5486035 = boost
                7.2195506 = idf(docFreq=87, maxDocs=44218)
                0.016855635 = queryNorm
              0.78153926 = fieldWeight in 3433, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.2195506 = idf(docFreq=87, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
          0.3002074 = weight(abstract_txt:healthcare in 3433) [ClassicSimilarity], result of:
            0.3002074 = score(doc=3433,freq=1.0), product of:
              0.61214197 = queryWeight, product of:
                4.6282606 = boost
                7.84674 = idf(docFreq=46, maxDocs=44218)
                0.016855635 = queryNorm
              0.49042124 = fieldWeight in 3433, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.84674 = idf(docFreq=46, maxDocs=44218)
                0.0625 = fieldNorm(doc=3433)
        0.72 = coord(18/25)
    
  2. Bhavnani, S.K.; Bichakjian, C.K.; Johnson, T.M.; Little, R.J.; Peck, F.A.; Schwartz, J.L.; Strecher, V.J.: Strategy hubs : Domain portals to help find comprehensive information (2006) 0.30
    0.29813284 = sum of:
      0.29813284 = product of:
        0.8281467 = sum of:
          0.02163178 = weight(abstract_txt:such in 4904) [ClassicSimilarity], result of:
            0.02163178 = score(doc=4904,freq=3.0), product of:
              0.058333177 = queryWeight, product of:
                1.0102632 = boost
                3.4255946 = idf(docFreq=3909, maxDocs=44218)
                0.016855635 = queryNorm
              0.3708315 = fieldWeight in 4904, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.4255946 = idf(docFreq=3909, maxDocs=44218)
                0.0625 = fieldNorm(doc=4904)
          0.043649033 = weight(abstract_txt:engines in 4904) [ClassicSimilarity], result of:
            0.043649033 = score(doc=4904,freq=2.0), product of:
              0.09314736 = queryWeight, product of:
                1.0423567 = boost
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.016855635 = queryNorm
              0.46860194 = fieldWeight in 4904, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.0625 = fieldNorm(doc=4904)
          0.048002508 = weight(abstract_txt:finding in 4904) [ClassicSimilarity], result of:
            0.048002508 = score(doc=4904,freq=2.0), product of:
              0.099242285 = queryWeight, product of:
                1.0759188 = boost
                5.4723287 = idf(docFreq=504, maxDocs=44218)
                0.016855635 = queryNorm
              0.48369008 = fieldWeight in 4904, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.4723287 = idf(docFreq=504, maxDocs=44218)
                0.0625 = fieldNorm(doc=4904)
          0.014317618 = weight(abstract_txt:that in 4904) [ClassicSimilarity], result of:
            0.014317618 = score(doc=4904,freq=3.0), product of:
              0.055818476 = queryWeight, product of:
                1.397593 = boost
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.016855635 = queryNorm
              0.2565032 = fieldWeight in 4904, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.0625 = fieldNorm(doc=4904)
          0.0837869 = weight(abstract_txt:find in 4904) [ClassicSimilarity], result of:
            0.0837869 = score(doc=4904,freq=3.0), product of:
              0.1583499 = queryWeight, product of:
                1.9220072 = boost
                4.887848 = idf(docFreq=905, maxDocs=44218)
                0.016855635 = queryNorm
              0.52912503 = fieldWeight in 4904, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.887848 = idf(docFreq=905, maxDocs=44218)
                0.0625 = fieldNorm(doc=4904)
          0.037406363 = weight(abstract_txt:information in 4904) [ClassicSimilarity], result of:
            0.037406363 = score(doc=4904,freq=8.0), product of:
              0.0874048 = queryWeight, product of:
                2.1419287 = boost
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.016855635 = queryNorm
              0.4279669 = fieldWeight in 4904, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.0625 = fieldNorm(doc=4904)
          0.086029716 = weight(abstract_txt:search in 4904) [ClassicSimilarity], result of:
            0.086029716 = score(doc=4904,freq=8.0), product of:
              0.13303734 = queryWeight, product of:
                2.1576376 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.016855635 = queryNorm
              0.6466584 = fieldWeight in 4904, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.0625 = fieldNorm(doc=4904)
          0.19311543 = weight(abstract_txt:comprehensive in 4904) [ClassicSimilarity], result of:
            0.19311543 = score(doc=4904,freq=5.0), product of:
              0.25103375 = queryWeight, product of:
                2.7056222 = boost
                5.5045247 = idf(docFreq=488, maxDocs=44218)
                0.016855635 = queryNorm
              0.76928073 = fieldWeight in 4904, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.5045247 = idf(docFreq=488, maxDocs=44218)
                0.0625 = fieldNorm(doc=4904)
          0.3002074 = weight(abstract_txt:healthcare in 4904) [ClassicSimilarity], result of:
            0.3002074 = score(doc=4904,freq=1.0), product of:
              0.61214197 = queryWeight, product of:
                4.6282606 = boost
                7.84674 = idf(docFreq=46, maxDocs=44218)
                0.016855635 = queryNorm
              0.49042124 = fieldWeight in 4904, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.84674 = idf(docFreq=46, maxDocs=44218)
                0.0625 = fieldNorm(doc=4904)
        0.36 = coord(9/25)
    
  3. Fife, E.D.; Husch, L.: ¬The Mathematics Archives : making mathematics easy to find on the Web (1999) 0.21
    0.20657554 = sum of:
      0.20657554 = product of:
        0.51643884 = sum of:
          0.03854122 = weight(abstract_txt:topics in 1239) [ClassicSimilarity], result of:
            0.03854122 = score(doc=1239,freq=2.0), product of:
              0.08573098 = queryWeight, product of:
                5.086191 = idf(docFreq=742, maxDocs=44218)
                0.016855635 = queryNorm
              0.44956002 = fieldWeight in 1239, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.086191 = idf(docFreq=742, maxDocs=44218)
                0.0625 = fieldNorm(doc=1239)
          0.012489113 = weight(abstract_txt:such in 1239) [ClassicSimilarity], result of:
            0.012489113 = score(doc=1239,freq=1.0), product of:
              0.058333177 = queryWeight, product of:
                1.0102632 = boost
                3.4255946 = idf(docFreq=3909, maxDocs=44218)
                0.016855635 = queryNorm
              0.21409966 = fieldWeight in 1239, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4255946 = idf(docFreq=3909, maxDocs=44218)
                0.0625 = fieldNorm(doc=1239)
          0.030864527 = weight(abstract_txt:engines in 1239) [ClassicSimilarity], result of:
            0.030864527 = score(doc=1239,freq=1.0), product of:
              0.09314736 = queryWeight, product of:
                1.0423567 = boost
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.016855635 = queryNorm
              0.3313516 = fieldWeight in 1239, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.0625 = fieldNorm(doc=1239)
          0.00826628 = weight(abstract_txt:that in 1239) [ClassicSimilarity], result of:
            0.00826628 = score(doc=1239,freq=1.0), product of:
              0.055818476 = queryWeight, product of:
                1.397593 = boost
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.016855635 = queryNorm
              0.1480922 = fieldWeight in 1239, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.0625 = fieldNorm(doc=1239)
          0.04837439 = weight(abstract_txt:find in 1239) [ClassicSimilarity], result of:
            0.04837439 = score(doc=1239,freq=1.0), product of:
              0.1583499 = queryWeight, product of:
                1.9220072 = boost
                4.887848 = idf(docFreq=905, maxDocs=44218)
                0.016855635 = queryNorm
              0.3054905 = fieldWeight in 1239, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.887848 = idf(docFreq=905, maxDocs=44218)
                0.0625 = fieldNorm(doc=1239)
          0.07599923 = weight(abstract_txt:topic in 1239) [ClassicSimilarity], result of:
            0.07599923 = score(doc=1239,freq=2.0), product of:
              0.16985184 = queryWeight, product of:
                1.9905874 = boost
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.016855635 = queryNorm
              0.44744426 = fieldWeight in 1239, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.0625 = fieldNorm(doc=1239)
          0.013225147 = weight(abstract_txt:information in 1239) [ClassicSimilarity], result of:
            0.013225147 = score(doc=1239,freq=1.0), product of:
              0.0874048 = queryWeight, product of:
                2.1419287 = boost
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.016855635 = queryNorm
              0.15130915 = fieldWeight in 1239, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.0625 = fieldNorm(doc=1239)
          0.07450393 = weight(abstract_txt:search in 1239) [ClassicSimilarity], result of:
            0.07450393 = score(doc=1239,freq=6.0), product of:
              0.13303734 = queryWeight, product of:
                2.1576376 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.016855635 = queryNorm
              0.56002265 = fieldWeight in 1239, 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=1239)
          0.0729665 = weight(abstract_txt:pages in 1239) [ClassicSimilarity], result of:
            0.0729665 = score(doc=1239,freq=1.0), product of:
              0.20826828 = queryWeight, product of:
                2.204234 = boost
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.016855635 = queryNorm
              0.3503486 = fieldWeight in 1239, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.0625 = fieldNorm(doc=1239)
          0.14120848 = weight(abstract_txt:sites in 1239) [ClassicSimilarity], result of:
            0.14120848 = score(doc=1239,freq=3.0), product of:
              0.2415707 = queryWeight, product of:
                2.6541364 = boost
                5.399778 = idf(docFreq=542, maxDocs=44218)
                0.016855635 = queryNorm
              0.5845431 = fieldWeight in 1239, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.399778 = idf(docFreq=542, maxDocs=44218)
                0.0625 = fieldNorm(doc=1239)
        0.4 = coord(10/25)
    
  4. What is Schema.org? (2011) 0.19
    0.1878422 = sum of:
      0.1878422 = product of:
        0.5217839 = sum of:
          0.05345893 = weight(abstract_txt:engines in 4437) [ClassicSimilarity], result of:
            0.05345893 = score(doc=4437,freq=3.0), product of:
              0.09314736 = queryWeight, product of:
                1.0423567 = boost
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.016855635 = queryNorm
              0.5739178 = fieldWeight in 4437, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.0625 = fieldNorm(doc=4437)
          0.044659488 = weight(abstract_txt:page in 4437) [ClassicSimilarity], result of:
            0.044659488 = score(doc=4437,freq=1.0), product of:
              0.1191626 = queryWeight, product of:
                1.1789654 = boost
                5.9964437 = idf(docFreq=298, maxDocs=44218)
                0.016855635 = queryNorm
              0.37477773 = fieldWeight in 4437, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9964437 = idf(docFreq=298, maxDocs=44218)
                0.0625 = fieldNorm(doc=4437)
          0.014317618 = weight(abstract_txt:that in 4437) [ClassicSimilarity], result of:
            0.014317618 = score(doc=4437,freq=3.0), product of:
              0.055818476 = queryWeight, product of:
                1.397593 = boost
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.016855635 = queryNorm
              0.2565032 = fieldWeight in 4437, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.0625 = fieldNorm(doc=4437)
          0.03982061 = weight(abstract_txt:many in 4437) [ClassicSimilarity], result of:
            0.03982061 = score(doc=4437,freq=2.0), product of:
              0.11039162 = queryWeight, product of:
                1.604775 = boost
                4.081096 = idf(docFreq=2029, maxDocs=44218)
                0.016855635 = queryNorm
              0.36072135 = fieldWeight in 4437, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.081096 = idf(docFreq=2029, maxDocs=44218)
                0.0625 = fieldNorm(doc=4437)
          0.068411715 = weight(abstract_txt:find in 4437) [ClassicSimilarity], result of:
            0.068411715 = score(doc=4437,freq=2.0), product of:
              0.1583499 = queryWeight, product of:
                1.9220072 = boost
                4.887848 = idf(docFreq=905, maxDocs=44218)
                0.016855635 = queryNorm
              0.4320288 = fieldWeight in 4437, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.887848 = idf(docFreq=905, maxDocs=44218)
                0.0625 = fieldNorm(doc=4437)
          0.018703181 = weight(abstract_txt:information in 4437) [ClassicSimilarity], result of:
            0.018703181 = score(doc=4437,freq=2.0), product of:
              0.0874048 = queryWeight, product of:
                2.1419287 = boost
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.016855635 = queryNorm
              0.21398345 = fieldWeight in 4437, 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=4437)
          0.07450393 = weight(abstract_txt:search in 4437) [ClassicSimilarity], result of:
            0.07450393 = score(doc=4437,freq=6.0), product of:
              0.13303734 = queryWeight, product of:
                2.1576376 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.016855635 = queryNorm
              0.56002265 = fieldWeight in 4437, 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=4437)
          0.12638168 = weight(abstract_txt:pages in 4437) [ClassicSimilarity], result of:
            0.12638168 = score(doc=4437,freq=3.0), product of:
              0.20826828 = queryWeight, product of:
                2.204234 = boost
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.016855635 = queryNorm
              0.60682154 = fieldWeight in 4437, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.0625 = fieldNorm(doc=4437)
          0.08152676 = weight(abstract_txt:sites in 4437) [ClassicSimilarity], result of:
            0.08152676 = score(doc=4437,freq=1.0), product of:
              0.2415707 = queryWeight, product of:
                2.6541364 = boost
                5.399778 = idf(docFreq=542, maxDocs=44218)
                0.016855635 = queryNorm
              0.33748612 = fieldWeight in 4437, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.399778 = idf(docFreq=542, maxDocs=44218)
                0.0625 = fieldNorm(doc=4437)
        0.36 = coord(9/25)
    
  5. Special issue on Web research (2002) 0.18
    0.1834844 = sum of:
      0.1834844 = product of:
        0.41701 = sum of:
          0.012489113 = weight(abstract_txt:such in 195) [ClassicSimilarity], result of:
            0.012489113 = score(doc=195,freq=1.0), product of:
              0.058333177 = queryWeight, product of:
                1.0102632 = boost
                3.4255946 = idf(docFreq=3909, maxDocs=44218)
                0.016855635 = queryNorm
              0.21409966 = fieldWeight in 195, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4255946 = idf(docFreq=3909, maxDocs=44218)
                0.0625 = fieldNorm(doc=195)
          0.030864527 = weight(abstract_txt:engines in 195) [ClassicSimilarity], result of:
            0.030864527 = score(doc=195,freq=1.0), product of:
              0.09314736 = queryWeight, product of:
                1.0423567 = boost
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.016855635 = queryNorm
              0.3313516 = fieldWeight in 195, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.0625 = fieldNorm(doc=195)
          0.017696245 = weight(abstract_txt:development in 195) [ClassicSimilarity], result of:
            0.017696245 = score(doc=195,freq=1.0), product of:
              0.07358941 = queryWeight, product of:
                1.1347086 = boost
                3.8475635 = idf(docFreq=2563, maxDocs=44218)
                0.016855635 = queryNorm
              0.24047272 = fieldWeight in 195, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.8475635 = idf(docFreq=2563, maxDocs=44218)
                0.0625 = fieldNorm(doc=195)
          0.06315806 = weight(abstract_txt:page in 195) [ClassicSimilarity], result of:
            0.06315806 = score(doc=195,freq=2.0), product of:
              0.1191626 = queryWeight, product of:
                1.1789654 = boost
                5.9964437 = idf(docFreq=298, maxDocs=44218)
                0.016855635 = queryNorm
              0.53001577 = fieldWeight in 195, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.9964437 = idf(docFreq=298, maxDocs=44218)
                0.0625 = fieldNorm(doc=195)
          0.032661706 = weight(abstract_txt:related in 195) [ClassicSimilarity], result of:
            0.032661706 = score(doc=195,freq=2.0), product of:
              0.087884136 = queryWeight, product of:
                1.2400293 = boost
                4.2046843 = idf(docFreq=1793, maxDocs=44218)
                0.016855635 = queryNorm
              0.3716451 = fieldWeight in 195, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.2046843 = idf(docFreq=1793, maxDocs=44218)
                0.0625 = fieldNorm(doc=195)
          0.00826628 = weight(abstract_txt:that in 195) [ClassicSimilarity], result of:
            0.00826628 = score(doc=195,freq=1.0), product of:
              0.055818476 = queryWeight, product of:
                1.397593 = boost
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.016855635 = queryNorm
              0.1480922 = fieldWeight in 195, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.0625 = fieldNorm(doc=195)
          0.05373957 = weight(abstract_txt:topic in 195) [ClassicSimilarity], result of:
            0.05373957 = score(doc=195,freq=1.0), product of:
              0.16985184 = queryWeight, product of:
                1.9905874 = boost
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.016855635 = queryNorm
              0.31639087 = fieldWeight in 195, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.0625 = fieldNorm(doc=195)
          0.013225147 = weight(abstract_txt:information in 195) [ClassicSimilarity], result of:
            0.013225147 = score(doc=195,freq=1.0), product of:
              0.0874048 = queryWeight, product of:
                2.1419287 = boost
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.016855635 = queryNorm
              0.15130915 = fieldWeight in 195, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.0625 = fieldNorm(doc=195)
          0.0304161 = weight(abstract_txt:search in 195) [ClassicSimilarity], result of:
            0.0304161 = score(doc=195,freq=1.0), product of:
              0.13303734 = queryWeight, product of:
                2.1576376 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.016855635 = queryNorm
              0.22862828 = fieldWeight in 195, 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=195)
          0.0729665 = weight(abstract_txt:pages in 195) [ClassicSimilarity], result of:
            0.0729665 = score(doc=195,freq=1.0), product of:
              0.20826828 = queryWeight, product of:
                2.204234 = boost
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.016855635 = queryNorm
              0.3503486 = fieldWeight in 195, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.0625 = fieldNorm(doc=195)
          0.08152676 = weight(abstract_txt:sites in 195) [ClassicSimilarity], result of:
            0.08152676 = score(doc=195,freq=1.0), product of:
              0.2415707 = queryWeight, product of:
                2.6541364 = boost
                5.399778 = idf(docFreq=542, maxDocs=44218)
                0.016855635 = queryNorm
              0.33748612 = fieldWeight in 195, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.399778 = idf(docFreq=542, maxDocs=44218)
                0.0625 = fieldNorm(doc=195)
        0.44 = coord(11/25)