Search (16 results, page 1 of 1)

  • × language_ss:"e"
  • × type_ss:"s"
  • × year_i:[1970 TO 1980}
  1. Ordering systems for global information networks : Proc. of the 3rd Int. Study Conf. on Classification Research, Bombay, 1975 (1979) 0.01
    0.0061703734 = product of:
      0.034965448 = sum of:
        0.009592383 = product of:
          0.019184766 = sum of:
            0.019184766 = weight(_text_:bibliothekswesen in 3431) [ClassicSimilarity], result of:
              0.019184766 = score(doc=3431,freq=2.0), product of:
                0.11129492 = queryWeight, product of:
                  4.457672 = idf(docFreq=1392, maxDocs=44218)
                  0.024967048 = queryNorm
                0.17237774 = fieldWeight in 3431, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.457672 = idf(docFreq=1392, maxDocs=44218)
                  0.02734375 = fieldNorm(doc=3431)
          0.5 = coord(1/2)
        0.019184766 = weight(_text_:bibliothekswesen in 3431) [ClassicSimilarity], result of:
          0.019184766 = score(doc=3431,freq=2.0), product of:
            0.11129492 = queryWeight, product of:
              4.457672 = idf(docFreq=1392, maxDocs=44218)
              0.024967048 = queryNorm
            0.17237774 = fieldWeight in 3431, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.457672 = idf(docFreq=1392, maxDocs=44218)
              0.02734375 = fieldNorm(doc=3431)
        0.006188299 = weight(_text_:in in 3431) [ClassicSimilarity], result of:
          0.006188299 = score(doc=3431,freq=24.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.1822149 = fieldWeight in 3431, product of:
              4.8989797 = tf(freq=24.0), with freq of:
                24.0 = termFreq=24.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.02734375 = fieldNorm(doc=3431)
      0.1764706 = coord(3/17)
    
    Content
    Enthält u.a. die Beiträge: HENRIKSEN, T.: A linguistic description model for indexing languages; MONTGOMERY, C.A.: Toward a natural language communications inferface; SPANG-HANSSEN, H.: Are classification systems similar to natural languages; LANCASTER, F.W.: Vocabulary control for on-line interactive retrieval systems: requirements and possible approaches; DAHLBERG, I.: On the theory of the concept; GROLIER, E. de: In search of an objective basis for the organization of knowledge; BELING, G.: Towards a set theoretical foundation of classification; BHATTACHARYYA, G.: Fundamenbtal of subject indexing languages; CAVALCANTI, C.R.: Universal integrated media for information processing; DESAI, A.R.: Theory of integrative levels, general systems theory, theory of classification, theory of wvolution, and theory of pattern recognition (abstract); GOPINATH, M.A. u. S. SEETHARAMA: Interdisciplinary subjects and their classification; IMMROTH, J.P.: A lexical essay toward the developments of the theory of indexes to classification schemes; KOCHEN, M.: Organising knowledge for coping with needs; KURBAKOV, K.I. u. V.G. BOLDOV: Problem of compatibility of information classification systems and some probable methods of its solution; MAIXNER, V.: Classification systems and retrieval languages; MEINCKE, P.P.M. u. P. ATHERTON: Knowledge space: a conceptual basis for the organization of knowledge; NEELAMEGHAN, A.: Absolute syntax and structure of an indexing and switching language; NEILL, S.D. MacLuhan and classification; RICHMOND, P.A. u. N.J. WILLIAMSON: Three dimensional physical models in classification; SVENONIUS, E.: Translation between hierarchical structures: an exercise in abstract classification; BORKO, H.: Changing roles of and developments in automated classification; DREESE, M.J.: Comparison of document retrieval using UDC - notation given by UDC - expert with catch-words taken from title by clerk, stored in computer memory; GARFIELD, E., MALIN, M.V. u. H. SMALL: A system for automatic classification of scientific literature (abstract); HEAPS, H.S. u. K.V. LEuNG: Automatic document classification based on a theory of relevance; HOYLE, W.G.: A measure of overlap in classification systems; KLESZCZ: Method of information retrieval and subject index compilation for abstracting periodicals with the use of a thesaurus enlarged with machine part classification; SCHNEIDER, J.H.: AUTOCLASS: a computer system for facilitating the creation and updating of hierarchical classifications; JANOS, J.: Information systems with automated indexing based an the analysis of texts; RIGBY, M.: Advances since Elsinore in the use of automated equipment for vocabulary, classification schedule and information or data control on a universal scale; TOMAN, J.: Trend of the future: two ordering system used together? TOMAN, J. u. G.A. Lloyd: Introduction to the Subject-field Reference Code (SRC) or Broad System of Ordering (BSO) for UNISIST purposes; AUSTIN, D.: Differences between library classifications and machine-based subject retrieval systems; some inferences drawn from research in Britain, 1963-1973; JACHOWICZ, R.L.: Application of classification as basis for the formulation of thesaurus; KOFNOVEC, L. u. D. SIMANDL: Quantitative structure of world scientific and technical literature and its use for optimizing general classifications; RAJAN, T.N. u. B. GUHA: A comparative study of subject heading structuring according to POPSI and PRECIS; ROLLING, L.N.: Computer management of multi-lingual thesauri; SOKOLOV, A.V.: Compound indexing languages; VILENSKAYA, S.C.: Systems approach as a principle of thesaurus building on the basis of the subject headings language; WAHLIN, E.: Special classification systems used together with a common reference system; the AR-complex; WERSIG, G.: Experiences in compatibility research in documentary languages; WOLFF-TERROINE, M.: A macrothesaurus. Why? How? SAMUELSON, K.: Information ordering in worldwise communications; SHEPHERD, M. u. C. WATTERS: Hierarchical retrieval from structured text
    Footnote
    Rez. in: Universal classification I. Subject analysis and ordering systems. Proc. 4th Int. Study Conf. on Classification Research ... , S.6-18 (H. Beck); Zentralblatt für Bibliothekswesen 97(1983) S.435-450 (H. Beck)
  2. Analyses of bibliographies (1973) 0.00
    0.0025902912 = product of:
      0.022017475 = sum of:
        0.005104023 = weight(_text_:in in 3846) [ClassicSimilarity], result of:
          0.005104023 = score(doc=3846,freq=2.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.15028831 = fieldWeight in 3846, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.078125 = fieldNorm(doc=3846)
        0.016913453 = product of:
          0.033826906 = sum of:
            0.033826906 = weight(_text_:22 in 3846) [ClassicSimilarity], result of:
              0.033826906 = score(doc=3846,freq=2.0), product of:
                0.08743035 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.024967048 = queryNorm
                0.38690117 = fieldWeight in 3846, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=3846)
          0.5 = coord(1/2)
      0.11764706 = coord(2/17)
    
    Content
    SIMON, H.R.: Introduction: why analyze bibliographies?; MARTYN, J.: Secondary services and the rising tide of paper; BROOKES, B.C.: Numerical methods of bibliographic analysis; THOMPSON, L.S.: The humanities: a state of the art report; BOTTLE, R.T.: Information obtainable from analyses of scientific bibliographies; SIMON, H.R.: Outlook: the analyses of bibliographies in the future
    Source
    Library trends. 22(1973), no.1
  3. ¬The exchange of bibliographic data and the MARC format : Proc. of the International Seminar on the MARC format and the Exchange of Bibliographic Data in Machine Readable Form ... Berlin, June 14-16, 1971 (1972) 0.00
    0.0017557206 = product of:
      0.014923625 = sum of:
        0.010840407 = weight(_text_:und in 4287) [ClassicSimilarity], result of:
          0.010840407 = score(doc=4287,freq=2.0), product of:
            0.055336144 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.024967048 = queryNorm
            0.19590102 = fieldWeight in 4287, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.0625 = fieldNorm(doc=4287)
        0.004083218 = weight(_text_:in in 4287) [ClassicSimilarity], result of:
          0.004083218 = score(doc=4287,freq=2.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.120230645 = fieldWeight in 4287, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.0625 = fieldNorm(doc=4287)
      0.11764706 = coord(2/17)
    
    Abstract
    Die heute noch bestehenden grundsätzlichen Probleme der Austauschformate wurden schon damals klar erkannt und beschrieben; unter dem Namen SUPERMARC wurde schon die UNIMARC Idee des universellen Austauschformats dargestellt
  4. UDC in relation to other indexing languages : Proceedings of the International Symposium held in Herceg Novi, Yugoslavia, 28.6.-1.7.1971 (1975) 0.00
    5.944382E-4 = product of:
      0.01010545 = sum of:
        0.01010545 = weight(_text_:in in 3484) [ClassicSimilarity], result of:
          0.01010545 = score(doc=3484,freq=4.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.29755569 = fieldWeight in 3484, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.109375 = fieldNorm(doc=3484)
      0.05882353 = coord(1/17)
    
  5. Subject retrieval in the seventies: new directions : Proc. of an Int. Symp. ... College Park, 14.-15.5.1971 (1972) 0.00
    5.560461E-4 = product of:
      0.0094527835 = sum of:
        0.0094527835 = weight(_text_:in in 289) [ClassicSimilarity], result of:
          0.0094527835 = score(doc=289,freq=14.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.27833787 = fieldWeight in 289, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.0546875 = fieldNorm(doc=289)
      0.05882353 = coord(1/17)
    
    Content
    Enthält die Beiträge: WELLISCH, H.H.: Subject retrieval in the seventies: methods, problems, prospects; GROLIER, E. de: Recent research trends in the field of information retrieval languages; SOERGEL, D.: A general model for indexing languages: the basis for compatibility and integration; WILSON, T.D.: The work of the British Classification Research Group; AITCHISON, J.: Thesaurofacet: a new concept in subject retrieval schemes; AUSTIN, D.: The PRECIS system for computer-generated indexes and its use in the British National Bibliography; LLOYD, G.A.: The Universal Decimal Classification as an international switching language; RIGBY, M.: The UDC in mechanized subject information retrieval; ANGELL, R.S.: Library of Congress Subject Headings: review and forecast
    Series
    Contributions in librarianship and information science; no.3
  6. General Classification Systems in a changing world : Proceedings of the FID Classification Symposium held in commemoration of the Dewey centenary, Brussels, Nov. 1976 (1978) 0.00
    5.095185E-4 = product of:
      0.008661814 = sum of:
        0.008661814 = weight(_text_:in in 3467) [ClassicSimilarity], result of:
          0.008661814 = score(doc=3467,freq=4.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.25504774 = fieldWeight in 3467, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.09375 = fieldNorm(doc=3467)
      0.05882353 = coord(1/17)
    
  7. Garfield, E.: Essays of an information scientist (1977-) 0.00
    4.245987E-4 = product of:
      0.007218178 = sum of:
        0.007218178 = weight(_text_:in in 2015) [ClassicSimilarity], result of:
          0.007218178 = score(doc=2015,freq=4.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.21253976 = fieldWeight in 2015, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.078125 = fieldNorm(doc=2015)
      0.05882353 = coord(1/17)
    
    Footnote
    U.a. Wiedergabe der Beiträge von E. Garfield in der Rubrik 'Current comments' in den 'Current contents'
  8. Toward a theory of librarianship. Papers in honour of Jesse Hauk Shera (1973) 0.00
    4.203313E-4 = product of:
      0.0071456316 = sum of:
        0.0071456316 = weight(_text_:in in 1446) [ClassicSimilarity], result of:
          0.0071456316 = score(doc=1446,freq=8.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.21040362 = fieldWeight in 1446, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1446)
      0.05882353 = coord(1/17)
    
    Content
    Enthält u.a. die Beiträge: VICKERY, B.C.: The nature of information science; FOSKETT, D.J.: The contribution of classification to a theory of librarianship; KOCHEN, M.: Referential consulting networks; GOFFMAN, W.: On information retrieval systems; BOOTH, A.D.: On a fallacy in the use of computing machines for automated dictionary retrieval; MORSE, P.M.: Browsing and search theory; FAIRTHORNE, R.A.: The symmetries of ignorance; RICHMOND, P.A.: A thesaurus within a thesaurus: a study in ambiguity; METCALFE, J.: When is a subject not a subject?; DUNKIN, P.S.: From pig to man; TAUBER, M.F. u. H. FEINBERG: Book catalogs; MENZEL, H.: Informal communication in science: its advantages and its formal analogues; KUNZE, H.: On the professional image and the education of the librarian
  9. Proceedings of second seminar on UDC in a mechanized retrieval system, conducted by R.R. Freeman, Frankfurt, 1.-5.6.1970. (1971) 0.00
    4.203313E-4 = product of:
      0.0071456316 = sum of:
        0.0071456316 = weight(_text_:in in 1985) [ClassicSimilarity], result of:
          0.0071456316 = score(doc=1985,freq=2.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.21040362 = fieldWeight in 1985, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.109375 = fieldNorm(doc=1985)
      0.05882353 = coord(1/17)
    
  10. Classification in the 1970's : a discussion of development and prospects for the major schemes (1972) 0.00
    4.203313E-4 = product of:
      0.0071456316 = sum of:
        0.0071456316 = weight(_text_:in in 3454) [ClassicSimilarity], result of:
          0.0071456316 = score(doc=3454,freq=2.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.21040362 = fieldWeight in 3454, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.109375 = fieldNorm(doc=3454)
      0.05882353 = coord(1/17)
    
  11. Ranganathan, S.R.; Palmer, B.I.: Ranganathan Memorial Issue: impact of growth in the universe of subjects on classification, Ranganathan, the man and his works, View through a bibliography (1972) 0.00
    4.203313E-4 = product of:
      0.0071456316 = sum of:
        0.0071456316 = weight(_text_:in in 3541) [ClassicSimilarity], result of:
          0.0071456316 = score(doc=3541,freq=2.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.21040362 = fieldWeight in 3541, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.109375 = fieldNorm(doc=3541)
      0.05882353 = coord(1/17)
    
  12. Classification in the 1970s. A second look (1976) 0.00
    4.160201E-4 = product of:
      0.0070723416 = sum of:
        0.0070723416 = weight(_text_:in in 3336) [ClassicSimilarity], result of:
          0.0070723416 = score(doc=3336,freq=6.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.2082456 = fieldWeight in 3336, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.0625 = fieldNorm(doc=3336)
      0.05882353 = coord(1/17)
    
    Content
    Enthält die Beiträge: MALTBY, A.: Classification - logic, limits, levels; MILLS, J.: Bibliographic classification; GOPINATH, M.A.: Colon Classification; IMMROTH, J.P.: Library of Congress Classification; LLOYD; G.A.: Universal Decimal Classification; VICKERY, B.C.: Classificatory principles in natural language indexing systems; KEEN, E.M.: Prospects for classification suggested by evaluation tests; AUSTIN, D.: The CRG research into a freely faceted scheme; FREEMAN, R.R.: Classification in computer-based information systems of the 1970s; SPARCK JONES, K.: Automatic classification; VANN, S.K.: Dewey Decimal Classification
  13. Reader in classification and descriptive cataloging (1972) 0.00
    4.0280976E-4 = product of:
      0.0068477658 = sum of:
        0.0068477658 = weight(_text_:in in 3421) [ClassicSimilarity], result of:
          0.0068477658 = score(doc=3421,freq=10.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.20163295 = fieldWeight in 3421, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.046875 = fieldNorm(doc=3421)
      0.05882353 = coord(1/17)
    
    Content
    Enthält die u.a. die Beiträge: DEWEY, M.: Catalogs and cataloging; BLISS, H.E.: Principles and definitions; LaMONTAGNE, L.E.: Historical background of classification; RICHARDSON, E.C.: Classification: theoretical and practical; RANGANATHAN, S.R.: Library classification as a discipline; SHARP, J.: Classification; SHERA, J.H. Classification: current functions and applications to the subject analysis of library materials; SAYERS, W.C.B.: The nature and purpose of classification; DEWEY, M.: Decimal classification and relativ index; MILLS, J.: Classification as an indexing device; RICHMOND, P.A.: The future of generalized systems of classification; PAINTER, A.F.: Modern classification theory; VICKERY,: Faceted classification schemes; BORKO, H.: Research in automatic generations of classification systems; FARRADANE, J.: Classification and mechanical selection; RICHMOND, P.A.: Some aspects of basic research in classification; RICHMOND, P.A.: Transformation and organization of information content: aspects of recent research in the art and science of classification; STROUT, R.F.: Development of the catalog and cataloging codes; CUTTER, C.A.: Library catalogs; CUTTER, C.A.: Rules for a dictionary catalog; LUBETSKY, S.: Design for a code; JOLLEY, L.: The function of the catalog; WEBER, D.C.: The changing character of the catalog in America; COOPER, W.S.: The potential usefulness of the catalog access points other than author, title and subject
  14. ¬The PRECIS index systems : principles, applications, and prospects. Proc. of the Int. PRECIS workshop sponsored ... , Univ. of Maryland, 15.-17.10.1976. (1977) 0.00
    3.640176E-4 = product of:
      0.006188299 = sum of:
        0.006188299 = weight(_text_:in in 1191) [ClassicSimilarity], result of:
          0.006188299 = score(doc=1191,freq=6.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.1822149 = fieldWeight in 1191, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1191)
      0.05882353 = coord(1/17)
    
    Content
    Enthält die Beiträge: AUSTIN, D.: The development of PRECIS, and introduction to its syntax; AUSTIN, D.: The semantics of PRECIS: vocabulary control and the RIN system; AUSTIN, D.: Management aspects of PRECIS, and current research and development; SØRENSEN, J.: Multilingual aspects of PRECIS; RICHMOND, P.A.: PRECIS compared with other indexing systems; BRUIN, V. de: PRECIS in a university library; SCHABAS, A.H.: Machine searching of UK MARC on title, LCSH, and PRECIS for selective dissemeination of information; TAYLOR, A.: Manual application of PRECIS in a high school library; ROBINSON, C.D.: Indexing nonbook materials by PRECIS; DYKSTRA, M.: The National Film Board of Canada project; COOK, C.D.: The practical possibilities of PRECIS in North America
  15. Maltby, A.; Gill, L.: ¬The case for Bliss : modern classification practice and principles in the context of the Bibliographic classification (1979) 0.00
    3.0023666E-4 = product of:
      0.005104023 = sum of:
        0.005104023 = weight(_text_:in in 3329) [ClassicSimilarity], result of:
          0.005104023 = score(doc=3329,freq=2.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.15028831 = fieldWeight in 3329, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.078125 = fieldNorm(doc=3329)
      0.05882353 = coord(1/17)
    
  16. Indexers on indexing : a selection of articles published in "The Indexer" (1978) 0.00
    3.0023666E-4 = product of:
      0.005104023 = sum of:
        0.005104023 = weight(_text_:in in 79) [ClassicSimilarity], result of:
          0.005104023 = score(doc=79,freq=2.0), product of:
            0.033961542 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.024967048 = queryNorm
            0.15028831 = fieldWeight in 79, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.078125 = fieldNorm(doc=79)
      0.05882353 = coord(1/17)