Document (#12633)

Author
Sievert, M.E.
McKinin, E.J.
Title
Why full-text misses some relevant documents : an analysis of documents not retrieved by CCML or MEDIS
Source
ASIS'89. Managing information and technology. Proceedings of the 52nd annual meeting of the American Society for Information Science, Washington D.C., 30.10.-2.11.1989. Vol.26. Ed.by J. Katzer and G.B. Newby
Imprint
Medford, New Jersey : Learned Information
Year
1989
Pages
S.34-39
Abstract
Searches conducted as part of the MEDLINE/Full-Text Research Project revealed that the full-text data bases of clinical medical journal articles (CCML (Comprehensive Core Medical Library) from BRS Information Technologies, and MEDIS from Mead Data Central) did not retrieve all the relevant citations. An analysis of the data indicated that 204 relevant citations were retrieved only by MEDLINE. A comparison of the strategies used on the full-text data bases with the text of the articles of these 204 citations revealed that 2 reasons contributed to these failure. The searcher often constructed a restrictive strategy which resulted in the loss of relevant documents; and as in other kinds of retrieval, the problems of natural language caused the loss of relevant documents.
Theme
Retrievalstudien
Volltextretrieval
Object
MEDLINE
CCML
MEDIS

Similar documents (author)

  1. Sievert, M.E.C.: Full-text information retrieval : an introduction (1996) 5.81 
    5.814733 = sum of:
  5.814733 = weight(author_txt:sievert in 4274) [ClassicSimilarity], result of:
    5.814733 = fieldWeight in 4274, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.303573 = idf(docFreq=10, maxDocs=44421)
      0.625 = fieldNorm(doc=4274)
  2. Sievert, M.C.: Full-text information retrieval : introduction (1996) 5.81 
    5.814733 = sum of:
  5.814733 = weight(author_txt:sievert in 4787) [ClassicSimilarity], result of:
    5.814733 = fieldWeight in 4787, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.303573 = idf(docFreq=10, maxDocs=44421)
      0.625 = fieldNorm(doc=4787)
  3. Sievert, M.; Verbeck, A.: ¬The indexing of the literature of online searching : a comparison of ERIC and LISA (1987) 4.65 
    4.6517863 = sum of:
  4.6517863 = weight(author_txt:sievert in 775) [ClassicSimilarity], result of:
    4.6517863 = fieldWeight in 775, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.303573 = idf(docFreq=10, maxDocs=44421)
      0.5 = fieldNorm(doc=775)
  4. Sievert, M.C.; Andrews, M.J.: Indexing consistency in Information Science Abstracts (1991) 4.65 
    4.6517863 = sum of:
  4.6517863 = weight(author_txt:sievert in 5654) [ClassicSimilarity], result of:
    4.6517863 = fieldWeight in 5654, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.303573 = idf(docFreq=10, maxDocs=44421)
      0.5 = fieldNorm(doc=5654)
  5. Connaway, L.S.; Sievert, M.C.: Comparison of three classification systems for information on health insurance (1996) 4.65 
    4.6517863 = sum of:
  4.6517863 = weight(author_txt:sievert in 311) [ClassicSimilarity], result of:
    4.6517863 = fieldWeight in 311, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.303573 = idf(docFreq=10, maxDocs=44421)
      0.5 = fieldNorm(doc=311)

Similar documents (content)

  1. McKinin, E.J.; Sievert, M.E.; Johnson, D.; Mitchell, J.A.: ¬The Medline/full-text research project (1991) 0.90 
    0.8973631 = sum of:
  0.8973631 = product of:
    1.4956051 = sum of:
      0.011972201 = weight(abstract_txt:these in 6385) [ClassicSimilarity], result of:
        0.011972201 = score(doc=6385,freq=1.0), product of:
          0.06018307 = queryWeight, product of:
            1.005516 = boost
            3.1828754 = idf(docFreq=5006, maxDocs=44421)
            0.01880467 = queryNorm
          0.19892971 = fieldWeight in 6385, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.1828754 = idf(docFreq=5006, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.058274984 = weight(abstract_txt:searcher in 6385) [ClassicSimilarity], result of:
        0.058274984 = score(doc=6385,freq=1.0), product of:
          0.13719442 = queryWeight, product of:
            1.0735074 = boost
            6.7961926 = idf(docFreq=134, maxDocs=44421)
            0.01880467 = queryNorm
          0.42476204 = fieldWeight in 6385, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.7961926 = idf(docFreq=134, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.010417874 = weight(abstract_txt:that in 6385) [ClassicSimilarity], result of:
        0.010417874 = score(doc=6385,freq=2.0), product of:
          0.049838487 = queryWeight, product of:
            1.1206756 = boost
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.01880467 = queryNorm
          0.20903271 = fieldWeight in 6385, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.07100395 = weight(abstract_txt:clinical in 6385) [ClassicSimilarity], result of:
        0.07100395 = score(doc=6385,freq=1.0), product of:
          0.15650806 = queryWeight, product of:
            1.1465821 = boost
            7.2588162 = idf(docFreq=84, maxDocs=44421)
            0.01880467 = queryNorm
          0.45367602 = fieldWeight in 6385, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.2588162 = idf(docFreq=84, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.12699158 = weight(abstract_txt:restrictive in 6385) [ClassicSimilarity], result of:
        0.12699158 = score(doc=6385,freq=1.0), product of:
          0.23060301 = queryWeight, product of:
            1.391776 = boost
            8.811096 = idf(docFreq=17, maxDocs=44421)
            0.01880467 = queryNorm
          0.5506935 = fieldWeight in 6385, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.811096 = idf(docFreq=17, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.1381708 = weight(abstract_txt:mead in 6385) [ClassicSimilarity], result of:
        0.1381708 = score(doc=6385,freq=1.0), product of:
          0.24394533 = queryWeight, product of:
            1.4314728 = boost
            9.06241 = idf(docFreq=13, maxDocs=44421)
            0.01880467 = queryNorm
          0.56640065 = fieldWeight in 6385, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.06241 = idf(docFreq=13, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.040545892 = weight(abstract_txt:articles in 6385) [ClassicSimilarity], result of:
        0.040545892 = score(doc=6385,freq=1.0), product of:
          0.13572387 = queryWeight, product of:
            1.5100105 = boost
            4.7798095 = idf(docFreq=1013, maxDocs=44421)
            0.01880467 = queryNorm
          0.2987381 = fieldWeight in 6385, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.7798095 = idf(docFreq=1013, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.07281216 = weight(abstract_txt:medical in 6385) [ClassicSimilarity], result of:
        0.07281216 = score(doc=6385,freq=1.0), product of:
          0.20052151 = queryWeight, product of:
            1.8354067 = boost
            5.8098235 = idf(docFreq=361, maxDocs=44421)
            0.01880467 = queryNorm
          0.36311397 = fieldWeight in 6385, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.8098235 = idf(docFreq=361, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.038786538 = weight(abstract_txt:data in 6385) [ClassicSimilarity], result of:
        0.038786538 = score(doc=6385,freq=2.0), product of:
          0.13176873 = queryWeight, product of:
            2.1041322 = boost
            3.3302255 = idf(docFreq=4320, maxDocs=44421)
            0.01880467 = queryNorm
          0.29435313 = fieldWeight in 6385, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.3302255 = idf(docFreq=4320, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.23386583 = weight(abstract_txt:medline in 6385) [ClassicSimilarity], result of:
        0.23386583 = score(doc=6385,freq=4.0), product of:
          0.27498955 = queryWeight, product of:
            2.1493638 = boost
            6.803628 = idf(docFreq=133, maxDocs=44421)
            0.01880467 = queryNorm
          0.8504535 = fieldWeight in 6385, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            6.803628 = idf(docFreq=133, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.08440553 = weight(abstract_txt:citations in 6385) [ClassicSimilarity], result of:
        0.08440553 = score(doc=6385,freq=1.0), product of:
          0.2533005 = queryWeight, product of:
            2.5264778 = boost
            5.331567 = idf(docFreq=583, maxDocs=44421)
            0.01880467 = queryNorm
          0.33322293 = fieldWeight in 6385, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.331567 = idf(docFreq=583, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.052057922 = weight(abstract_txt:documents in 6385) [ClassicSimilarity], result of:
        0.052057922 = score(doc=6385,freq=1.0), product of:
          0.2020038 = queryWeight, product of:
            2.6052332 = boost
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.01880467 = queryNorm
          0.25770763 = fieldWeight in 6385, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.2346942 = weight(abstract_txt:full in 6385) [ClassicSimilarity], result of:
        0.2346942 = score(doc=6385,freq=7.0), product of:
          0.28818446 = queryWeight, product of:
            3.1117315 = boost
            4.9249606 = idf(docFreq=876, maxDocs=44421)
            0.01880467 = queryNorm
          0.8143888 = fieldWeight in 6385, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            4.9249606 = idf(docFreq=876, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.16204388 = weight(abstract_txt:text in 6385) [ClassicSimilarity], result of:
        0.16204388 = score(doc=6385,freq=7.0), product of:
          0.24250877 = queryWeight, product of:
            3.1914318 = boost
            4.040882 = idf(docFreq=2122, maxDocs=44421)
            0.01880467 = queryNorm
          0.66819805 = fieldWeight in 6385, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            4.040882 = idf(docFreq=2122, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
      0.1595618 = weight(abstract_txt:relevant in 6385) [ClassicSimilarity], result of:
        0.1595618 = score(doc=6385,freq=3.0), product of:
          0.31835908 = queryWeight, product of:
            3.6566253 = boost
            4.6298943 = idf(docFreq=1177, maxDocs=44421)
            0.01880467 = queryNorm
          0.50120074 = fieldWeight in 6385, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.6298943 = idf(docFreq=1177, maxDocs=44421)
            0.0625 = fieldNorm(doc=6385)
    0.6 = coord(15/25)
  2. Sievert, M.E.; McKinin, E.J.; Slough, M.: ¬A comparison of indexing and full-text for the retrieval of clinical medical literature (1988) 0.81 
    0.8132894 = sum of:
  0.8132894 = product of:
    1.694353 = sum of:
      0.011049825 = weight(abstract_txt:that in 3631) [ClassicSimilarity], result of:
        0.011049825 = score(doc=3631,freq=1.0), product of:
          0.049838487 = queryWeight, product of:
            1.1206756 = boost
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.01880467 = queryNorm
          0.22171268 = fieldWeight in 3631, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.10650593 = weight(abstract_txt:clinical in 3631) [ClassicSimilarity], result of:
        0.10650593 = score(doc=3631,freq=1.0), product of:
          0.15650806 = queryWeight, product of:
            1.1465821 = boost
            7.2588162 = idf(docFreq=84, maxDocs=44421)
            0.01880467 = queryNorm
          0.68051404 = fieldWeight in 3631, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.2588162 = idf(docFreq=84, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.026986107 = weight(abstract_txt:analysis in 3631) [ClassicSimilarity], result of:
        0.026986107 = score(doc=3631,freq=1.0), product of:
          0.078957066 = queryWeight, product of:
            1.1517211 = boost
            3.6456752 = idf(docFreq=3151, maxDocs=44421)
            0.01880467 = queryNorm
          0.34178203 = fieldWeight in 3631, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.6456752 = idf(docFreq=3151, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.20725618 = weight(abstract_txt:mead in 3631) [ClassicSimilarity], result of:
        0.20725618 = score(doc=3631,freq=1.0), product of:
          0.24394533 = queryWeight, product of:
            1.4314728 = boost
            9.06241 = idf(docFreq=13, maxDocs=44421)
            0.01880467 = queryNorm
          0.849601 = fieldWeight in 3631, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.06241 = idf(docFreq=13, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.10921824 = weight(abstract_txt:medical in 3631) [ClassicSimilarity], result of:
        0.10921824 = score(doc=3631,freq=1.0), product of:
          0.20052151 = queryWeight, product of:
            1.8354067 = boost
            5.8098235 = idf(docFreq=361, maxDocs=44421)
            0.01880467 = queryNorm
          0.54467094 = fieldWeight in 3631, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.8098235 = idf(docFreq=361, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.24862403 = weight(abstract_txt:bases in 3631) [ClassicSimilarity], result of:
        0.24862403 = score(doc=3631,freq=3.0), product of:
          0.24059458 = queryWeight, product of:
            2.0104568 = boost
            6.3639297 = idf(docFreq=207, maxDocs=44421)
            0.01880467 = queryNorm
          1.0333734 = fieldWeight in 3631, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            6.3639297 = idf(docFreq=207, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.08227868 = weight(abstract_txt:data in 3631) [ClassicSimilarity], result of:
        0.08227868 = score(doc=3631,freq=4.0), product of:
          0.13176873 = queryWeight, product of:
            2.1041322 = boost
            3.3302255 = idf(docFreq=4320, maxDocs=44421)
            0.01880467 = queryNorm
          0.6244173 = fieldWeight in 3631, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.3302255 = idf(docFreq=4320, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.24805216 = weight(abstract_txt:medline in 3631) [ClassicSimilarity], result of:
        0.24805216 = score(doc=3631,freq=2.0), product of:
          0.27498955 = queryWeight, product of:
            2.1493638 = boost
            6.803628 = idf(docFreq=133, maxDocs=44421)
            0.01880467 = queryNorm
          0.90204215 = fieldWeight in 3631, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.803628 = idf(docFreq=133, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.1266083 = weight(abstract_txt:citations in 3631) [ClassicSimilarity], result of:
        0.1266083 = score(doc=3631,freq=1.0), product of:
          0.2533005 = queryWeight, product of:
            2.5264778 = boost
            5.331567 = idf(docFreq=583, maxDocs=44421)
            0.01880467 = queryNorm
          0.4998344 = fieldWeight in 3631, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.331567 = idf(docFreq=583, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.23046514 = weight(abstract_txt:full in 3631) [ClassicSimilarity], result of:
        0.23046514 = score(doc=3631,freq=3.0), product of:
          0.28818446 = queryWeight, product of:
            3.1117315 = boost
            4.9249606 = idf(docFreq=876, maxDocs=44421)
            0.01880467 = queryNorm
          0.79971397 = fieldWeight in 3631, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.9249606 = idf(docFreq=876, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.15912394 = weight(abstract_txt:text in 3631) [ClassicSimilarity], result of:
        0.15912394 = score(doc=3631,freq=3.0), product of:
          0.24250877 = queryWeight, product of:
            3.1914318 = boost
            4.040882 = idf(docFreq=2122, maxDocs=44421)
            0.01880467 = queryNorm
          0.6561575 = fieldWeight in 3631, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.040882 = idf(docFreq=2122, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
      0.13818458 = weight(abstract_txt:relevant in 3631) [ClassicSimilarity], result of:
        0.13818458 = score(doc=3631,freq=1.0), product of:
          0.31835908 = queryWeight, product of:
            3.6566253 = boost
            4.6298943 = idf(docFreq=1177, maxDocs=44421)
            0.01880467 = queryNorm
          0.4340526 = fieldWeight in 3631, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.6298943 = idf(docFreq=1177, maxDocs=44421)
            0.09375 = fieldNorm(doc=3631)
    0.48 = coord(12/25)
  3. MacCain, K.W.; White, H.D.; Griffith, B.C.: Comparing retrieval performance in online data bases (1987) 0.48 
    0.48479787 = sum of:
  0.48479787 = product of:
    1.1018133 = sum of:
      0.05527691 = weight(abstract_txt:resulted in 2167) [ClassicSimilarity], result of:
        0.05527691 = score(doc=2167,freq=1.0), product of:
          0.13244763 = queryWeight, product of:
            1.0547729 = boost
            6.677587 = idf(docFreq=151, maxDocs=44421)
            0.01880467 = queryNorm
          0.4173492 = fieldWeight in 2167, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.677587 = idf(docFreq=151, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
      0.06370345 = weight(abstract_txt:failure in 2167) [ClassicSimilarity], result of:
        0.06370345 = score(doc=2167,freq=1.0), product of:
          0.14558735 = queryWeight, product of:
            1.1058562 = boost
            7.000987 = idf(docFreq=109, maxDocs=44421)
            0.01880467 = queryNorm
          0.4375617 = fieldWeight in 2167, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.000987 = idf(docFreq=109, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
      0.017990738 = weight(abstract_txt:analysis in 2167) [ClassicSimilarity], result of:
        0.017990738 = score(doc=2167,freq=1.0), product of:
          0.078957066 = queryWeight, product of:
            1.1517211 = boost
            3.6456752 = idf(docFreq=3151, maxDocs=44421)
            0.01880467 = queryNorm
          0.2278547 = fieldWeight in 2167, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.6456752 = idf(docFreq=3151, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
      0.040545892 = weight(abstract_txt:articles in 2167) [ClassicSimilarity], result of:
        0.040545892 = score(doc=2167,freq=1.0), product of:
          0.13572387 = queryWeight, product of:
            1.5100105 = boost
            4.7798095 = idf(docFreq=1013, maxDocs=44421)
            0.01880467 = queryNorm
          0.2987381 = fieldWeight in 2167, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.7798095 = idf(docFreq=1013, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
      0.06894228 = weight(abstract_txt:retrieved in 2167) [ClassicSimilarity], result of:
        0.06894228 = score(doc=2167,freq=1.0), product of:
          0.19335204 = queryWeight, product of:
            1.8022964 = boost
            5.7050157 = idf(docFreq=401, maxDocs=44421)
            0.01880467 = queryNorm
          0.35656348 = fieldWeight in 2167, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.7050157 = idf(docFreq=401, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
      0.07281216 = weight(abstract_txt:medical in 2167) [ClassicSimilarity], result of:
        0.07281216 = score(doc=2167,freq=1.0), product of:
          0.20052151 = queryWeight, product of:
            1.8354067 = boost
            5.8098235 = idf(docFreq=361, maxDocs=44421)
            0.01880467 = queryNorm
          0.36311397 = fieldWeight in 2167, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.8098235 = idf(docFreq=361, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
      0.19139087 = weight(abstract_txt:bases in 2167) [ClassicSimilarity], result of:
        0.19139087 = score(doc=2167,freq=4.0), product of:
          0.24059458 = queryWeight, product of:
            2.0104568 = boost
            6.3639297 = idf(docFreq=207, maxDocs=44421)
            0.01880467 = queryNorm
          0.7954912 = fieldWeight in 2167, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            6.3639297 = idf(docFreq=207, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
      0.061326902 = weight(abstract_txt:data in 2167) [ClassicSimilarity], result of:
        0.061326902 = score(doc=2167,freq=5.0), product of:
          0.13176873 = queryWeight, product of:
            2.1041322 = boost
            3.3302255 = idf(docFreq=4320, maxDocs=44421)
            0.01880467 = queryNorm
          0.46541315 = fieldWeight in 2167, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            3.3302255 = idf(docFreq=4320, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
      0.3093754 = weight(abstract_txt:medline in 2167) [ClassicSimilarity], result of:
        0.3093754 = score(doc=2167,freq=7.0), product of:
          0.27498955 = queryWeight, product of:
            2.1493638 = boost
            6.803628 = idf(docFreq=133, maxDocs=44421)
            0.01880467 = queryNorm
          1.1250442 = fieldWeight in 2167, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            6.803628 = idf(docFreq=133, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
      0.09016696 = weight(abstract_txt:documents in 2167) [ClassicSimilarity], result of:
        0.09016696 = score(doc=2167,freq=3.0), product of:
          0.2020038 = queryWeight, product of:
            2.6052332 = boost
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.01880467 = queryNorm
          0.4463627 = fieldWeight in 2167, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
      0.13028167 = weight(abstract_txt:relevant in 2167) [ClassicSimilarity], result of:
        0.13028167 = score(doc=2167,freq=2.0), product of:
          0.31835908 = queryWeight, product of:
            3.6566253 = boost
            4.6298943 = idf(docFreq=1177, maxDocs=44421)
            0.01880467 = queryNorm
          0.40922868 = fieldWeight in 2167, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.6298943 = idf(docFreq=1177, maxDocs=44421)
            0.0625 = fieldNorm(doc=2167)
    0.44 = coord(11/25)
  4. Stein, M.J.; Sheridan, C.R.: Hypertext and the identity link (1990) 0.23 
    0.2292339 = sum of:
  0.2292339 = product of:
    0.8186925 = sum of:
      0.023944402 = weight(abstract_txt:these in 5775) [ClassicSimilarity], result of:
        0.023944402 = score(doc=5775,freq=1.0), product of:
          0.06018307 = queryWeight, product of:
            1.005516 = boost
            3.1828754 = idf(docFreq=5006, maxDocs=44421)
            0.01880467 = queryNorm
          0.39785942 = fieldWeight in 5775, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.1828754 = idf(docFreq=5006, maxDocs=44421)
            0.125 = fieldNorm(doc=5775)
      0.014733098 = weight(abstract_txt:that in 5775) [ClassicSimilarity], result of:
        0.014733098 = score(doc=5775,freq=1.0), product of:
          0.049838487 = queryWeight, product of:
            1.1206756 = boost
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.01880467 = queryNorm
          0.2956169 = fieldWeight in 5775, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.125 = fieldNorm(doc=5775)
      0.19139087 = weight(abstract_txt:bases in 5775) [ClassicSimilarity], result of:
        0.19139087 = score(doc=5775,freq=1.0), product of:
          0.24059458 = queryWeight, product of:
            2.0104568 = boost
            6.3639297 = idf(docFreq=207, maxDocs=44421)
            0.01880467 = queryNorm
          0.7954912 = fieldWeight in 5775, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.3639297 = idf(docFreq=207, maxDocs=44421)
            0.125 = fieldNorm(doc=5775)
      0.05485245 = weight(abstract_txt:data in 5775) [ClassicSimilarity], result of:
        0.05485245 = score(doc=5775,freq=1.0), product of:
          0.13176873 = queryWeight, product of:
            2.1041322 = boost
            3.3302255 = idf(docFreq=4320, maxDocs=44421)
            0.01880467 = queryNorm
          0.41627818 = fieldWeight in 5775, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.3302255 = idf(docFreq=4320, maxDocs=44421)
            0.125 = fieldNorm(doc=5775)
      0.23386583 = weight(abstract_txt:medline in 5775) [ClassicSimilarity], result of:
        0.23386583 = score(doc=5775,freq=1.0), product of:
          0.27498955 = queryWeight, product of:
            2.1493638 = boost
            6.803628 = idf(docFreq=133, maxDocs=44421)
            0.01880467 = queryNorm
          0.8504535 = fieldWeight in 5775, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.803628 = idf(docFreq=133, maxDocs=44421)
            0.125 = fieldNorm(doc=5775)
      0.17741214 = weight(abstract_txt:full in 5775) [ClassicSimilarity], result of:
        0.17741214 = score(doc=5775,freq=1.0), product of:
          0.28818446 = queryWeight, product of:
            3.1117315 = boost
            4.9249606 = idf(docFreq=876, maxDocs=44421)
            0.01880467 = queryNorm
          0.6156201 = fieldWeight in 5775, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.9249606 = idf(docFreq=876, maxDocs=44421)
            0.125 = fieldNorm(doc=5775)
      0.12249367 = weight(abstract_txt:text in 5775) [ClassicSimilarity], result of:
        0.12249367 = score(doc=5775,freq=1.0), product of:
          0.24250877 = queryWeight, product of:
            3.1914318 = boost
            4.040882 = idf(docFreq=2122, maxDocs=44421)
            0.01880467 = queryNorm
          0.50511026 = fieldWeight in 5775, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.040882 = idf(docFreq=2122, maxDocs=44421)
            0.125 = fieldNorm(doc=5775)
    0.28 = coord(7/25)
  5. Dumais, S.T.: Latent semantic analysis (2003) 0.22 
    0.21511652 = sum of:
  0.21511652 = product of:
    0.48890117 = sum of:
      0.01036823 = weight(abstract_txt:these in 3462) [ClassicSimilarity], result of:
        0.01036823 = score(doc=3462,freq=3.0), product of:
          0.06018307 = queryWeight, product of:
            1.005516 = boost
            3.1828754 = idf(docFreq=5006, maxDocs=44421)
            0.01880467 = queryNorm
          0.17227818 = fieldWeight in 3462, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.1828754 = idf(docFreq=5006, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
      0.030138614 = weight(abstract_txt:caused in 3462) [ClassicSimilarity], result of:
        0.030138614 = score(doc=3462,freq=1.0), product of:
          0.14031923 = queryWeight, product of:
            1.085664 = boost
            6.8731537 = idf(docFreq=124, maxDocs=44421)
            0.01880467 = queryNorm
          0.21478605 = fieldWeight in 3462, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.8731537 = idf(docFreq=124, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
      0.011049825 = weight(abstract_txt:that in 3462) [ClassicSimilarity], result of:
        0.011049825 = score(doc=3462,freq=9.0), product of:
          0.049838487 = queryWeight, product of:
            1.1206756 = boost
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.01880467 = queryNorm
          0.22171268 = fieldWeight in 3462, product of:
            3.0 = tf(freq=9.0), with freq of:
              9.0 = termFreq=9.0
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
      0.017990738 = weight(abstract_txt:analysis in 3462) [ClassicSimilarity], result of:
        0.017990738 = score(doc=3462,freq=4.0), product of:
          0.078957066 = queryWeight, product of:
            1.1517211 = boost
            3.6456752 = idf(docFreq=3151, maxDocs=44421)
            0.01880467 = queryNorm
          0.2278547 = fieldWeight in 3462, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.6456752 = idf(docFreq=3151, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
      0.020272946 = weight(abstract_txt:articles in 3462) [ClassicSimilarity], result of:
        0.020272946 = score(doc=3462,freq=1.0), product of:
          0.13572387 = queryWeight, product of:
            1.5100105 = boost
            4.7798095 = idf(docFreq=1013, maxDocs=44421)
            0.01880467 = queryNorm
          0.14936905 = fieldWeight in 3462, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.7798095 = idf(docFreq=1013, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
      0.04874955 = weight(abstract_txt:retrieved in 3462) [ClassicSimilarity], result of:
        0.04874955 = score(doc=3462,freq=2.0), product of:
          0.19335204 = queryWeight, product of:
            1.8022964 = boost
            5.7050157 = idf(docFreq=401, maxDocs=44421)
            0.01880467 = queryNorm
          0.25212845 = fieldWeight in 3462, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.7050157 = idf(docFreq=401, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
      0.03640608 = weight(abstract_txt:medical in 3462) [ClassicSimilarity], result of:
        0.03640608 = score(doc=3462,freq=1.0), product of:
          0.20052151 = queryWeight, product of:
            1.8354067 = boost
            5.8098235 = idf(docFreq=361, maxDocs=44421)
            0.01880467 = queryNorm
          0.18155698 = fieldWeight in 3462, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.8098235 = idf(docFreq=361, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
      0.0823108 = weight(abstract_txt:documents in 3462) [ClassicSimilarity], result of:
        0.0823108 = score(doc=3462,freq=10.0), product of:
          0.2020038 = queryWeight, product of:
            2.6052332 = boost
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.01880467 = queryNorm
          0.40747154 = fieldWeight in 3462, product of:
            3.1622777 = tf(freq=10.0), with freq of:
              10.0 = termFreq=10.0
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
      0.076821715 = weight(abstract_txt:full in 3462) [ClassicSimilarity], result of:
        0.076821715 = score(doc=3462,freq=3.0), product of:
          0.28818446 = queryWeight, product of:
            3.1117315 = boost
            4.9249606 = idf(docFreq=876, maxDocs=44421)
            0.01880467 = queryNorm
          0.2665713 = fieldWeight in 3462, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.9249606 = idf(docFreq=876, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
      0.07501175 = weight(abstract_txt:text in 3462) [ClassicSimilarity], result of:
        0.07501175 = score(doc=3462,freq=6.0), product of:
          0.24250877 = queryWeight, product of:
            3.1914318 = boost
            4.040882 = idf(docFreq=2122, maxDocs=44421)
            0.01880467 = queryNorm
          0.30931562 = fieldWeight in 3462, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            4.040882 = idf(docFreq=2122, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
      0.0797809 = weight(abstract_txt:relevant in 3462) [ClassicSimilarity], result of:
        0.0797809 = score(doc=3462,freq=3.0), product of:
          0.31835908 = queryWeight, product of:
            3.6566253 = boost
            4.6298943 = idf(docFreq=1177, maxDocs=44421)
            0.01880467 = queryNorm
          0.25060037 = fieldWeight in 3462, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.6298943 = idf(docFreq=1177, maxDocs=44421)
            0.03125 = fieldNorm(doc=3462)
    0.44 = coord(11/25)