Document (#28654)

Author
Austin, D.
Digger, J.A.
Title
PRECIS: The Preserved Context Index System
Source
Theory of subject analysis: a sourcebook. Ed.: L.M. Chan, et al
Imprint
Littleton, CO : Libraries Unlimited
Year
1985
Pages
S.369-389
Abstract
Probably the most interesting, original and controversial indexing system of the 1970s has been PRECIS (the Preserved Context Index System) developed by Derek Austin. It attracted such attention that the short courses given at the British National Bibliography offices in London -initiated as a means of teaching the staff of BNB who did subject indexing-were repeated all over the world, in the form of three-day or three-week sessions. A few fortunate non-BNB indexers were taken into London classes, taught by Austin and Digger, and had the advantage of a week's work with the regular staff theresomething that could not be done elsewhere. In addition, descriptions of the system were published from time to time as progress was made an the system itself and clarification or updating were needed. This article has been selected as an example of clarification. A second edition of the original 1974 Manual describing PRECIS appeared in early 1984, so the system may now be regarded as fully mature. PRECIS, which is the culmination of Austin's research for the Classification Research Group plus considerable additional input from the science of linguistics, is a highly sophisticated indexing system, deliberately created to be used with a computer. The motive behind it was that the indexer should do the brain work and the computer the nitty-gritty work of manipulating index terms. Chosen combinations and permutations are used as head words under strict rules to ensure that the context which defines the specific meaning of these words is always present, thus avoiding the ambiguity problem in indexing. The system also has classifi ation features, in part drawn from the Group's long interest in faceted classification. The actual index produces a large number of index entries, each carrying with it the basic context of the item being described. A weIl-defined terminology, in addition to contextdependency, is a feature of PRECIS. Role operators define the types of terms used and control the manipulations of the terms, which are originally entered as a string. The indexer is able to analyze and reduce to string form any document, process, or material that can be described in words, making it ideal for most audiovisual material.
The system itself has two major aspects: - a syntactic approach in which relationships between terms are identified and tagged. Suitable algorithms for manipulation produce a very thorough index in which each head word is kept in context. - a semantic approach in which terminology is weIl defined by ensuring that the relationships of equivalence, hierarchy, and association are clearly established. Charts of relationships are created by inductive means (i.e., from the ground up). A special code for computer manipulation is used with each line of the string. This translates the string format into one that, with specially derived algorithms, can be used by the computer, to produce the actual index headings with all parts rotated by following the algorithm. The PRECIS system has been translated and utilized for languages other than English, notably French, German, and Danish. Modifications needed for idiosyncracies of each language have been made. Some, such as those modifications needed for German, have turned out to have usefulness with English as weIl. All in all, the system has such advanced indexing concepts that it provides a kind of indexing not possible before the computer came into common usage. Austin, who joined the staff of the British National Bibliography in 1963, is currently a member of the British Library staff. His early work included a NATO-sponsored research assignment for the Classification Research Group (q.v.). This, in turn, led to the development of PRECIS.
Footnote
Nachdruck des Originalartikels mit Kommentierung durch die Herausgeber
Original in: Library resources and technical services 21(1977) no.1, S.13-30.
Theme
Preserved Context Index System (PRECIS)
Verbale Doksprachen für präkombinierte Einträge
Object
PRECIS

Similar documents (author)

  1. Austin, D.: ¬The development of PRECIS: a theoretical and technical history (1974) 4.95
    4.9526825 = sum of:
      4.9526825 = weight(author_txt:austin in 12) [ClassicSimilarity], result of:
        4.9526825 = score(doc=12,freq=1.0), product of:
          0.99999994 = queryWeight, product of:
            7.9242926 = idf(docFreq=39, maxDocs=40667)
            0.12619422 = queryNorm
          4.952683 = fieldWeight in 12, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.9242926 = idf(docFreq=39, maxDocs=40667)
            0.625 = fieldNorm(doc=12)
    
  2. Austin, D.: ¬The CRG research into a freely faceted scheme (1976) 4.95
    4.9526825 = sum of:
      4.9526825 = weight(author_txt:austin in 116) [ClassicSimilarity], result of:
        4.9526825 = score(doc=116,freq=1.0), product of:
          0.99999994 = queryWeight, product of:
            7.9242926 = idf(docFreq=39, maxDocs=40667)
            0.12619422 = queryNorm
          4.952683 = fieldWeight in 116, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.9242926 = idf(docFreq=39, maxDocs=40667)
            0.625 = fieldNorm(doc=116)
    
  3. Austin, D.: Automatisierung in der Sacherschließung der British Library (1984) 4.95
    4.9526825 = sum of:
      4.9526825 = weight(author_txt:austin in 999) [ClassicSimilarity], result of:
        4.9526825 = score(doc=999,freq=1.0), product of:
          0.99999994 = queryWeight, product of:
            7.9242926 = idf(docFreq=39, maxDocs=40667)
            0.12619422 = queryNorm
          4.952683 = fieldWeight in 999, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.9242926 = idf(docFreq=39, maxDocs=40667)
            0.625 = fieldNorm(doc=999)
    
  4. Austin, D.: PRECIS: Grundprinzipien, Funktion und Anwendung (1983) 4.95
    4.9526825 = sum of:
      4.9526825 = weight(author_txt:austin in 1001) [ClassicSimilarity], result of:
        4.9526825 = score(doc=1001,freq=1.0), product of:
          0.99999994 = queryWeight, product of:
            7.9242926 = idf(docFreq=39, maxDocs=40667)
            0.12619422 = queryNorm
          4.952683 = fieldWeight in 1001, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.9242926 = idf(docFreq=39, maxDocs=40667)
            0.625 = fieldNorm(doc=1001)
    
  5. Austin, D.: ¬The theory of integrative levels reconsidered as the basis of a general classification (1969) 4.95
    4.9526825 = sum of:
      4.9526825 = weight(author_txt:austin in 1286) [ClassicSimilarity], result of:
        4.9526825 = score(doc=1286,freq=1.0), product of:
          0.99999994 = queryWeight, product of:
            7.9242926 = idf(docFreq=39, maxDocs=40667)
            0.12619422 = queryNorm
          4.952683 = fieldWeight in 1286, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.9242926 = idf(docFreq=39, maxDocs=40667)
            0.625 = fieldNorm(doc=1286)
    

Similar documents (content)

  1. Austin, D.: PRECIS (2009) 1.99
    1.987998 = sum of:
      1.987998 = product of:
        4.969995 = sum of:
          0.13901892 = weight(abstract_txt:preserved in 2966) [ClassicSimilarity], result of:
            0.13901892 = score(doc=2966,freq=1.0), product of:
              0.21297738 = queryWeight, product of:
                1.141559 = boost
                8.355076 = idf(docFreq=25, maxDocs=40667)
                0.022329794 = queryNorm
              0.6527403 = fieldWeight in 2966, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.355076 = idf(docFreq=25, maxDocs=40667)
                0.078125 = fieldNorm(doc=2966)
          0.018222207 = weight(abstract_txt:which in 2966) [ClassicSimilarity], result of:
            0.018222207 = score(doc=2966,freq=1.0), product of:
              0.079260826 = queryWeight, product of:
                1.2062062 = boost
                2.942743 = idf(docFreq=5827, maxDocs=40667)
                0.022329794 = queryNorm
              0.2299018 = fieldWeight in 2966, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.942743 = idf(docFreq=5827, maxDocs=40667)
                0.078125 = fieldNorm(doc=2966)
          0.013606581 = weight(abstract_txt:with in 2966) [ClassicSimilarity], result of:
            0.013606581 = score(doc=2966,freq=1.0), product of:
              0.068676196 = queryWeight, product of:
                1.2127429 = boost
                2.5360205 = idf(docFreq=8752, maxDocs=40667)
                0.022329794 = queryNorm
              0.1981266 = fieldWeight in 2966, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.5360205 = idf(docFreq=8752, maxDocs=40667)
                0.078125 = fieldNorm(doc=2966)
          0.026993187 = weight(abstract_txt:that in 2966) [ClassicSimilarity], result of:
            0.026993187 = score(doc=2966,freq=4.0), product of:
              0.0714146 = queryWeight, product of:
                1.322072 = boost
                2.4190629 = idf(docFreq=9838, maxDocs=40667)
                0.022329794 = queryNorm
              0.37797856 = fieldWeight in 2966, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                2.4190629 = idf(docFreq=9838, maxDocs=40667)
                0.078125 = fieldNorm(doc=2966)
          0.07244782 = weight(abstract_txt:context in 2966) [ClassicSimilarity], result of:
            0.07244782 = score(doc=2966,freq=2.0), product of:
              0.14857228 = queryWeight, product of:
                1.5075458 = boost
                4.413494 = idf(docFreq=1338, maxDocs=40667)
                0.022329794 = queryNorm
              0.4876268 = fieldWeight in 2966, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.413494 = idf(docFreq=1338, maxDocs=40667)
                0.078125 = fieldNorm(doc=2966)
          0.30346078 = weight(abstract_txt:austin in 2966) [ClassicSimilarity], result of:
            0.30346078 = score(doc=2966,freq=2.0), product of:
              0.32561645 = queryWeight, product of:
                1.7287428 = boost
                8.435119 = idf(docFreq=23, maxDocs=40667)
                0.022329794 = queryNorm
              0.9319577 = fieldWeight in 2966, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.435119 = idf(docFreq=23, maxDocs=40667)
                0.078125 = fieldNorm(doc=2966)
          0.100051574 = weight(abstract_txt:indexing in 2966) [ClassicSimilarity], result of:
            0.100051574 = score(doc=2966,freq=3.0), product of:
              0.17104097 = queryWeight, product of:
                1.7719127 = boost
                4.3228793 = idf(docFreq=1465, maxDocs=40667)
                0.022329794 = queryNorm
              0.58495677 = fieldWeight in 2966, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.3228793 = idf(docFreq=1465, maxDocs=40667)
                0.078125 = fieldNorm(doc=2966)
          0.1242622 = weight(abstract_txt:index in 2966) [ClassicSimilarity], result of:
            0.1242622 = score(doc=2966,freq=2.0), product of:
              0.23815311 = queryWeight, product of:
                2.258363 = boost
                4.7225633 = idf(docFreq=982, maxDocs=40667)
                0.022329794 = queryNorm
              0.5217744 = fieldWeight in 2966, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.7225633 = idf(docFreq=982, maxDocs=40667)
                0.078125 = fieldNorm(doc=2966)
          0.06998101 = weight(abstract_txt:system in 2966) [ClassicSimilarity], result of:
            0.06998101 = score(doc=2966,freq=2.0), product of:
              0.18882026 = queryWeight, product of:
                2.5207934 = boost
                3.3544908 = idf(docFreq=3860, maxDocs=40667)
                0.022329794 = queryNorm
              0.37062234 = fieldWeight in 2966, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.3544908 = idf(docFreq=3860, maxDocs=40667)
                0.078125 = fieldNorm(doc=2966)
          4.1019506 = weight(title_txt:precis in 2966) [ClassicSimilarity], result of:
            4.1019506 = score(doc=2966,freq=1.0), product of:
              0.56427896 = queryWeight, product of:
                3.4762626 = boost
                7.2693667 = idf(docFreq=76, maxDocs=40667)
                0.022329794 = queryNorm
              7.2693667 = fieldWeight in 2966, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2693667 = idf(docFreq=76, maxDocs=40667)
                1.0 = fieldNorm(doc=2966)
        0.4 = coord(10/25)
    
  2. Bakewell, K.G.B.: Indexers' reactions to PRECIS (1979) 0.79
    0.7946931 = sum of:
      0.7946931 = product of:
        2.483416 = sum of:
          0.06327737 = weight(abstract_txt:needed in 1204) [ClassicSimilarity], result of:
            0.06327737 = score(doc=1204,freq=1.0), product of:
              0.12774956 = queryWeight, product of:
                1.0828217 = boost
                5.2834516 = idf(docFreq=560, maxDocs=40667)
                0.022329794 = queryNorm
              0.4953236 = fieldWeight in 1204, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2834516 = idf(docFreq=560, maxDocs=40667)
                0.09375 = fieldNorm(doc=1204)
          0.03838441 = weight(abstract_txt:terms in 1204) [ClassicSimilarity], result of:
            0.03838441 = score(doc=1204,freq=1.0), product of:
              0.10075732 = queryWeight, product of:
                1.110414 = boost
                4.063563 = idf(docFreq=1899, maxDocs=40667)
                0.022329794 = queryNorm
              0.38095903 = fieldWeight in 1204, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.063563 = idf(docFreq=1899, maxDocs=40667)
                0.09375 = fieldNorm(doc=1204)
          0.027892694 = weight(abstract_txt:used in 1204) [ClassicSimilarity], result of:
            0.027892694 = score(doc=1204,freq=1.0), product of:
              0.087727755 = queryWeight, product of:
                1.1584309 = boost
                3.3914244 = idf(docFreq=3720, maxDocs=40667)
                0.022329794 = queryNorm
              0.31794605 = fieldWeight in 1204, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3914244 = idf(docFreq=3720, maxDocs=40667)
                0.09375 = fieldNorm(doc=1204)
          0.021866648 = weight(abstract_txt:which in 1204) [ClassicSimilarity], result of:
            0.021866648 = score(doc=1204,freq=1.0), product of:
              0.079260826 = queryWeight, product of:
                1.2062062 = boost
                2.942743 = idf(docFreq=5827, maxDocs=40667)
                0.022329794 = queryNorm
              0.27588215 = fieldWeight in 1204, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.942743 = idf(docFreq=5827, maxDocs=40667)
                0.09375 = fieldNorm(doc=1204)
          0.15232112 = weight(abstract_txt:british in 1204) [ClassicSimilarity], result of:
            0.15232112 = score(doc=1204,freq=3.0), product of:
              0.15909632 = queryWeight, product of:
                1.2083905 = boost
                5.8961444 = idf(docFreq=303, maxDocs=40667)
                0.022329794 = queryNorm
              0.9574145 = fieldWeight in 1204, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.8961444 = idf(docFreq=303, maxDocs=40667)
                0.09375 = fieldNorm(doc=1204)
          0.06931776 = weight(abstract_txt:indexing in 1204) [ClassicSimilarity], result of:
            0.06931776 = score(doc=1204,freq=1.0), product of:
              0.17104097 = queryWeight, product of:
                1.7719127 = boost
                4.3228793 = idf(docFreq=1465, maxDocs=40667)
                0.022329794 = queryNorm
              0.40526992 = fieldWeight in 1204, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3228793 = idf(docFreq=1465, maxDocs=40667)
                0.09375 = fieldNorm(doc=1204)
          0.05938086 = weight(abstract_txt:system in 1204) [ClassicSimilarity], result of:
            0.05938086 = score(doc=1204,freq=1.0), product of:
              0.18882026 = queryWeight, product of:
                2.5207934 = boost
                3.3544908 = idf(docFreq=3860, maxDocs=40667)
                0.022329794 = queryNorm
              0.31448352 = fieldWeight in 1204, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3544908 = idf(docFreq=3860, maxDocs=40667)
                0.09375 = fieldNorm(doc=1204)
          2.0509753 = weight(title_txt:precis in 1204) [ClassicSimilarity], result of:
            2.0509753 = score(doc=1204,freq=1.0), product of:
              0.56427896 = queryWeight, product of:
                3.4762626 = boost
                7.2693667 = idf(docFreq=76, maxDocs=40667)
                0.022329794 = queryNorm
              3.6346834 = fieldWeight in 1204, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2693667 = idf(docFreq=76, maxDocs=40667)
                0.5 = fieldNorm(doc=1204)
        0.32 = coord(8/25)
    
  3. Austin, D.: PRECIS in a multilingual context : Pt.1: PRECIS: an overview (1976) 0.78
    0.78397256 = sum of:
      0.78397256 = product of:
        2.1777015 = sum of:
          0.031987008 = weight(abstract_txt:terms in 2964) [ClassicSimilarity], result of:
            0.031987008 = score(doc=2964,freq=1.0), product of:
              0.10075732 = queryWeight, product of:
                1.110414 = boost
                4.063563 = idf(docFreq=1899, maxDocs=40667)
                0.022329794 = queryNorm
              0.31746584 = fieldWeight in 2964, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.063563 = idf(docFreq=1899, maxDocs=40667)
                0.078125 = fieldNorm(doc=2964)
          0.023243912 = weight(abstract_txt:used in 2964) [ClassicSimilarity], result of:
            0.023243912 = score(doc=2964,freq=1.0), product of:
              0.087727755 = queryWeight, product of:
                1.1584309 = boost
                3.3914244 = idf(docFreq=3720, maxDocs=40667)
                0.022329794 = queryNorm
              0.26495504 = fieldWeight in 2964, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3914244 = idf(docFreq=3720, maxDocs=40667)
                0.078125 = fieldNorm(doc=2964)
          0.02577009 = weight(abstract_txt:which in 2964) [ClassicSimilarity], result of:
            0.02577009 = score(doc=2964,freq=2.0), product of:
              0.079260826 = queryWeight, product of:
                1.2062062 = boost
                2.942743 = idf(docFreq=5827, maxDocs=40667)
                0.022329794 = queryNorm
              0.32513022 = fieldWeight in 2964, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.942743 = idf(docFreq=5827, maxDocs=40667)
                0.078125 = fieldNorm(doc=2964)
          0.013606581 = weight(abstract_txt:with in 2964) [ClassicSimilarity], result of:
            0.013606581 = score(doc=2964,freq=1.0), product of:
              0.068676196 = queryWeight, product of:
                1.2127429 = boost
                2.5360205 = idf(docFreq=8752, maxDocs=40667)
                0.022329794 = queryNorm
              0.1981266 = fieldWeight in 2964, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.5360205 = idf(docFreq=8752, maxDocs=40667)
                0.078125 = fieldNorm(doc=2964)
          0.051228352 = weight(abstract_txt:context in 2964) [ClassicSimilarity], result of:
            0.051228352 = score(doc=2964,freq=1.0), product of:
              0.14857228 = queryWeight, product of:
                1.5075458 = boost
                4.413494 = idf(docFreq=1338, maxDocs=40667)
                0.022329794 = queryNorm
              0.34480423 = fieldWeight in 2964, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.413494 = idf(docFreq=1338, maxDocs=40667)
                0.078125 = fieldNorm(doc=2964)
          0.081691764 = weight(abstract_txt:indexing in 2964) [ClassicSimilarity], result of:
            0.081691764 = score(doc=2964,freq=2.0), product of:
              0.17104097 = queryWeight, product of:
                1.7719127 = boost
                4.3228793 = idf(docFreq=1465, maxDocs=40667)
                0.022329794 = queryNorm
              0.47761518 = fieldWeight in 2964, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.3228793 = idf(docFreq=1465, maxDocs=40667)
                0.078125 = fieldNorm(doc=2964)
          0.08786665 = weight(abstract_txt:index in 2964) [ClassicSimilarity], result of:
            0.08786665 = score(doc=2964,freq=1.0), product of:
              0.23815311 = queryWeight, product of:
                2.258363 = boost
                4.7225633 = idf(docFreq=982, maxDocs=40667)
                0.022329794 = queryNorm
              0.36895025 = fieldWeight in 2964, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7225633 = idf(docFreq=982, maxDocs=40667)
                0.078125 = fieldNorm(doc=2964)
          0.049484048 = weight(abstract_txt:system in 2964) [ClassicSimilarity], result of:
            0.049484048 = score(doc=2964,freq=1.0), product of:
              0.18882026 = queryWeight, product of:
                2.5207934 = boost
                3.3544908 = idf(docFreq=3860, maxDocs=40667)
                0.022329794 = queryNorm
              0.26206958 = fieldWeight in 2964, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3544908 = idf(docFreq=3860, maxDocs=40667)
                0.078125 = fieldNorm(doc=2964)
          1.8128232 = weight(title_txt:precis in 2964) [ClassicSimilarity], result of:
            1.8128232 = score(doc=2964,freq=2.0), product of:
              0.56427896 = queryWeight, product of:
                3.4762626 = boost
                7.2693667 = idf(docFreq=76, maxDocs=40667)
                0.022329794 = queryNorm
              3.2126365 = fieldWeight in 2964, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.2693667 = idf(docFreq=76, maxDocs=40667)
                0.3125 = fieldNorm(doc=2964)
        0.36 = coord(9/25)
    
  4. Richmond, P.A.: Classification from PRECIS : some possibilities (1976) 0.77
    0.7704819 = sum of:
      0.7704819 = product of:
        2.4077559 = sum of:
          0.04813345 = weight(abstract_txt:each in 1200) [ClassicSimilarity], result of:
            0.04813345 = score(doc=1200,freq=1.0), product of:
              0.105723985 = queryWeight, product of:
                1.1374528 = boost
                4.1625113 = idf(docFreq=1720, maxDocs=40667)
                0.022329794 = queryNorm
              0.45527467 = fieldWeight in 1200, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1625113 = idf(docFreq=1720, maxDocs=40667)
                0.109375 = fieldNorm(doc=1200)
          0.19462648 = weight(abstract_txt:preserved in 1200) [ClassicSimilarity], result of:
            0.19462648 = score(doc=1200,freq=1.0), product of:
              0.21297738 = queryWeight, product of:
                1.141559 = boost
                8.355076 = idf(docFreq=25, maxDocs=40667)
                0.022329794 = queryNorm
              0.9138364 = fieldWeight in 1200, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.355076 = idf(docFreq=25, maxDocs=40667)
                0.109375 = fieldNorm(doc=1200)
          0.02551109 = weight(abstract_txt:which in 1200) [ClassicSimilarity], result of:
            0.02551109 = score(doc=1200,freq=1.0), product of:
              0.079260826 = queryWeight, product of:
                1.2062062 = boost
                2.942743 = idf(docFreq=5827, maxDocs=40667)
                0.022329794 = queryNorm
              0.32186252 = fieldWeight in 1200, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.942743 = idf(docFreq=5827, maxDocs=40667)
                0.109375 = fieldNorm(doc=1200)
          0.07171969 = weight(abstract_txt:context in 1200) [ClassicSimilarity], result of:
            0.07171969 = score(doc=1200,freq=1.0), product of:
              0.14857228 = queryWeight, product of:
                1.5075458 = boost
                4.413494 = idf(docFreq=1338, maxDocs=40667)
                0.022329794 = queryNorm
              0.48272592 = fieldWeight in 1200, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.413494 = idf(docFreq=1338, maxDocs=40667)
                0.109375 = fieldNorm(doc=1200)
          0.08087072 = weight(abstract_txt:indexing in 1200) [ClassicSimilarity], result of:
            0.08087072 = score(doc=1200,freq=1.0), product of:
              0.17104097 = queryWeight, product of:
                1.7719127 = boost
                4.3228793 = idf(docFreq=1465, maxDocs=40667)
                0.022329794 = queryNorm
              0.47281492 = fieldWeight in 1200, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3228793 = idf(docFreq=1465, maxDocs=40667)
                0.109375 = fieldNorm(doc=1200)
          0.12301331 = weight(abstract_txt:index in 1200) [ClassicSimilarity], result of:
            0.12301331 = score(doc=1200,freq=1.0), product of:
              0.23815311 = queryWeight, product of:
                2.258363 = boost
                4.7225633 = idf(docFreq=982, maxDocs=40667)
                0.022329794 = queryNorm
              0.51653033 = fieldWeight in 1200, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7225633 = idf(docFreq=982, maxDocs=40667)
                0.109375 = fieldNorm(doc=1200)
          0.06927767 = weight(abstract_txt:system in 1200) [ClassicSimilarity], result of:
            0.06927767 = score(doc=1200,freq=1.0), product of:
              0.18882026 = queryWeight, product of:
                2.5207934 = boost
                3.3544908 = idf(docFreq=3860, maxDocs=40667)
                0.022329794 = queryNorm
              0.36689743 = fieldWeight in 1200, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3544908 = idf(docFreq=3860, maxDocs=40667)
                0.109375 = fieldNorm(doc=1200)
          1.7946035 = weight(title_txt:precis in 1200) [ClassicSimilarity], result of:
            1.7946035 = score(doc=1200,freq=1.0), product of:
              0.56427896 = queryWeight, product of:
                3.4762626 = boost
                7.2693667 = idf(docFreq=76, maxDocs=40667)
                0.022329794 = queryNorm
              3.180348 = fieldWeight in 1200, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2693667 = idf(docFreq=76, maxDocs=40667)
                0.4375 = fieldNorm(doc=1200)
        0.32 = coord(8/25)
    
  5. Biswas, S.C.; Smith, F.: Efficiency and effectiveness of deep structure based indexing languages : PRECIS vs. DSIS (1991) 0.74
    0.7417592 = sum of:
      0.7417592 = product of:
        1.6858163 = sum of:
          0.028325496 = weight(abstract_txt:been in 2187) [ClassicSimilarity], result of:
            0.028325496 = score(doc=2187,freq=3.0), product of:
              0.08171594 = queryWeight, product of:
                3.6595025 = idf(docFreq=2845, maxDocs=40667)
                0.022329794 = queryNorm
              0.34663367 = fieldWeight in 2187, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6595025 = idf(docFreq=2845, maxDocs=40667)
                0.0546875 = fieldNorm(doc=2187)
          0.022390908 = weight(abstract_txt:terms in 2187) [ClassicSimilarity], result of:
            0.022390908 = score(doc=2187,freq=1.0), product of:
              0.10075732 = queryWeight, product of:
                1.110414 = boost
                4.063563 = idf(docFreq=1899, maxDocs=40667)
                0.022329794 = queryNorm
              0.2222261 = fieldWeight in 2187, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.063563 = idf(docFreq=1899, maxDocs=40667)
                0.0546875 = fieldNorm(doc=2187)
          0.023010297 = weight(abstract_txt:used in 2187) [ClassicSimilarity], result of:
            0.023010297 = score(doc=2187,freq=2.0), product of:
              0.087727755 = queryWeight, product of:
                1.1584309 = boost
                3.3914244 = idf(docFreq=3720, maxDocs=40667)
                0.022329794 = queryNorm
              0.2622921 = fieldWeight in 2187, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.3914244 = idf(docFreq=3720, maxDocs=40667)
                0.0546875 = fieldNorm(doc=2187)
          0.009524607 = weight(abstract_txt:with in 2187) [ClassicSimilarity], result of:
            0.009524607 = score(doc=2187,freq=1.0), product of:
              0.068676196 = queryWeight, product of:
                1.2127429 = boost
                2.5360205 = idf(docFreq=8752, maxDocs=40667)
                0.022329794 = queryNorm
              0.13868862 = fieldWeight in 2187, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.5360205 = idf(docFreq=8752, maxDocs=40667)
                0.0546875 = fieldNorm(doc=2187)
          0.013360946 = weight(abstract_txt:that in 2187) [ClassicSimilarity], result of:
            0.013360946 = score(doc=2187,freq=2.0), product of:
              0.0714146 = queryWeight, product of:
                1.322072 = boost
                2.4190629 = idf(docFreq=9838, maxDocs=40667)
                0.022329794 = queryNorm
              0.18708985 = fieldWeight in 2187, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4190629 = idf(docFreq=9838, maxDocs=40667)
                0.0546875 = fieldNorm(doc=2187)
          0.15020542 = weight(abstract_txt:austin in 2187) [ClassicSimilarity], result of:
            0.15020542 = score(doc=2187,freq=1.0), product of:
              0.32561645 = queryWeight, product of:
                1.7287428 = boost
                8.435119 = idf(docFreq=23, maxDocs=40667)
                0.022329794 = queryNorm
              0.46129555 = fieldWeight in 2187, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.435119 = idf(docFreq=23, maxDocs=40667)
                0.0546875 = fieldNorm(doc=2187)
          0.0700361 = weight(abstract_txt:indexing in 2187) [ClassicSimilarity], result of:
            0.0700361 = score(doc=2187,freq=3.0), product of:
              0.17104097 = queryWeight, product of:
                1.7719127 = boost
                4.3228793 = idf(docFreq=1465, maxDocs=40667)
                0.022329794 = queryNorm
              0.40946972 = fieldWeight in 2187, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.3228793 = idf(docFreq=1465, maxDocs=40667)
                0.0546875 = fieldNorm(doc=2187)
          0.17147477 = weight(abstract_txt:string in 2187) [ClassicSimilarity], result of:
            0.17147477 = score(doc=2187,freq=2.0), product of:
              0.31070793 = queryWeight, product of:
                1.9499469 = boost
                7.1358356 = idf(docFreq=87, maxDocs=40667)
                0.022329794 = queryNorm
              0.5518841 = fieldWeight in 2187, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.1358356 = idf(docFreq=87, maxDocs=40667)
                0.0546875 = fieldNorm(doc=2187)
          0.12301331 = weight(abstract_txt:index in 2187) [ClassicSimilarity], result of:
            0.12301331 = score(doc=2187,freq=4.0), product of:
              0.23815311 = queryWeight, product of:
                2.258363 = boost
                4.7225633 = idf(docFreq=982, maxDocs=40667)
                0.022329794 = queryNorm
              0.51653033 = fieldWeight in 2187, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.7225633 = idf(docFreq=982, maxDocs=40667)
                0.0546875 = fieldNorm(doc=2187)
          0.048986707 = weight(abstract_txt:system in 2187) [ClassicSimilarity], result of:
            0.048986707 = score(doc=2187,freq=2.0), product of:
              0.18882026 = queryWeight, product of:
                2.5207934 = boost
                3.3544908 = idf(docFreq=3860, maxDocs=40667)
                0.022329794 = queryNorm
              0.25943565 = fieldWeight in 2187, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.3544908 = idf(docFreq=3860, maxDocs=40667)
                0.0546875 = fieldNorm(doc=2187)
          1.0254877 = weight(title_txt:precis in 2187) [ClassicSimilarity], result of:
            1.0254877 = score(doc=2187,freq=1.0), product of:
              0.56427896 = queryWeight, product of:
                3.4762626 = boost
                7.2693667 = idf(docFreq=76, maxDocs=40667)
                0.022329794 = queryNorm
              1.8173417 = fieldWeight in 2187, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2693667 = idf(docFreq=76, maxDocs=40667)
                0.25 = fieldNorm(doc=2187)
        0.44 = coord(11/25)