Document (#27770)

Author
Caro Castro, C.
Travieso Rodríguez, C.
Title
Ariadne's thread : knowledge structures for browsing in OPAC's
Source
Challenges in knowledge representation and organization for the 21st century: Integration of knowledge across boundaries. Proceedings of the 7th ISKO International Conference Granada, Spain, July 10-13, 2002. Ed.: M. López-Huertas
Imprint
Würzburg : Ergon Verlag
Year
2003
Pages
S.500-509
Series
Advances in knowledge organization; vol.8
Abstract
Subject searching is the most common but also the most conflictive searching for end user. The aim of this paper is to check how users expressions match subject headings and to prove if knowledge structure used in online catalogs enhances searching effectiveness. A bibliographic revision about difficulties in subject access and proposed methods to improve it is also presented. For the empirical analysis, transaction logs from two university libraries, online catalogs (CISNE and FAMA) were collected. Results show that more than a quarter of user queries are effective due to an alphabetical subject index approach and browsing through hypertextual links. 1. Introduction Since the 1980's, online public access catalogs (OPAC's) have become usual way to access bibliographic information. During the last two decades the technological development has helped to extend their use, making feasible the access for a whole of users that is getting more and more extensive and heterogeneous, and also to incorporate information resources in electronic formats and to interconnect systems. However, technology seems to have developed faster than our knowledge about the tasks where it has been applied and than the evolution of our capacities for adapting to it. The conceptual model of OPAC has been hardly modified recently, and for interacting with them, users still need to combine the same skills and basic knowledge than at the beginning of its introduction (Borgman, 1986, 2000): a) conceptual knowledge to translate the information need into an appropriate query because of a well-designed mental model of the system, b) semantic and syntactic knowledge to be able to implement that query (access fields, searching type, Boolean logic, etc.) and c) basic technical skills in computing. At present many users have the essential technical skills to make use, with more or less expertise, of a computer. This number is substantially reduced when it is referred to the conceptual, semantic and syntactic knowledge that is necessary to achieve a moderately satisfactory search. An added difficulty arises in subject searching, as users should concrete their unknown information needs in terms that the information retrieval system can understand. Many researches have focused an unskilled searchers' difficulties to enter an effective query. The mental models influence, users assumption about characteristics, structure, contents and operation of the system they interact with have been analysed (Dillon, 2000; Dimitroff, 2000). Another issue that implies difficulties is vocabulary: how to find the right terms to implement a query and to modify it as the case may be. Terminology and expressions characteristics used in searching (Bates, 1993), the match between user terms and the subject headings from the catalog (Carlyle, 1989; Drabensttot, 1996; Drabensttot & Vizine-Goetz, 1994), the incidence of spelling errors (Drabensttot and Weller, 1996; Ferl and Millsap, 1996; Walker and Jones, 1987), users problems
Theme
OPAC
Semantisches Umfeld in Indexierung u. Retrieval

Similar documents (author)

  1. Castro, M.C.P.S.: Communicacao e modernidadde : o impasse antinomica e as possibilidades da polifonia (1993) 2.46
    2.459544 = sum of:
      2.459544 = product of:
        4.919088 = sum of:
          4.919088 = weight(author_txt:castro in 5731) [ClassicSimilarity], result of:
            4.919088 = score(doc=5731,freq=1.0), product of:
              0.8304343 = queryWeight, product of:
                1.2208987 = boost
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.071767256 = queryNorm
              5.9235125 = fieldWeight in 5731, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.625 = fieldNorm(doc=5731)
        0.5 = coord(1/2)
    
  2. Castro, C. Caro -> Caro Castro, C.: 2.09
    2.0869923 = sum of:
      2.0869923 = product of:
        4.1739845 = sum of:
          4.1739845 = weight(author_txt:castro in 4629) [ClassicSimilarity], result of:
            4.1739845 = score(doc=4629,freq=2.0), product of:
              0.8304343 = queryWeight, product of:
                1.2208987 = boost
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.071767256 = queryNorm
              5.026267 = fieldWeight in 4629, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.375 = fieldNorm(doc=4629)
        0.5 = coord(1/2)
    
  3. Castro, A. de: Mental models may fail when faced with self-referential descriptors (2016) 1.97
    1.9676353 = sum of:
      1.9676353 = product of:
        3.9352705 = sum of:
          3.9352705 = weight(author_txt:castro in 3950) [ClassicSimilarity], result of:
            3.9352705 = score(doc=3950,freq=1.0), product of:
              0.8304343 = queryWeight, product of:
                1.2208987 = boost
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.071767256 = queryNorm
              4.73881 = fieldWeight in 3950, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.5 = fieldNorm(doc=3950)
        0.5 = coord(1/2)
    
  4. Martins, S. de Castro: Modelo conceitual de ecossistema semântico de informações corporativas para aplicação em objetos multimídia (2019) 1.97
    1.9676353 = sum of:
      1.9676353 = product of:
        3.9352705 = sum of:
          3.9352705 = weight(author_txt:castro in 1119) [ClassicSimilarity], result of:
            3.9352705 = score(doc=1119,freq=1.0), product of:
              0.8304343 = queryWeight, product of:
                1.2208987 = boost
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.071767256 = queryNorm
              4.73881 = fieldWeight in 1119, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.5 = fieldNorm(doc=1119)
        0.5 = coord(1/2)
    
  5. Castro, R. de; Grossmann, J.W.: Famous trails to Paul Erdös (1999) 1.72
    1.7216808 = sum of:
      1.7216808 = product of:
        3.4433615 = sum of:
          3.4433615 = weight(author_txt:castro in 5992) [ClassicSimilarity], result of:
            3.4433615 = score(doc=5992,freq=1.0), product of:
              0.8304343 = queryWeight, product of:
                1.2208987 = boost
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.071767256 = queryNorm
              4.1464586 = fieldWeight in 5992, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.4375 = fieldNorm(doc=5992)
        0.5 = coord(1/2)
    

Similar documents (content)

  1. Borgman, C.L.: Why are online catalogs still hard to use? (1996) 0.44
    0.44216305 = sum of:
      0.44216305 = product of:
        0.92117304 = sum of:
          0.02860614 = weight(abstract_txt:information in 5449) [ClassicSimilarity], result of:
            0.02860614 = score(doc=5449,freq=9.0), product of:
              0.07184466 = queryWeight, product of:
                1.0758837 = boost
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.027515264 = queryNorm
              0.39816654 = fieldWeight in 5449, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.075012006 = weight(abstract_txt:implement in 5449) [ClassicSimilarity], result of:
            0.075012006 = score(doc=5449,freq=1.0), product of:
              0.20938377 = queryWeight, product of:
                1.1616348 = boost
                6.550881 = idf(docFreq=167, maxDocs=43254)
                0.027515264 = queryNorm
              0.3582513 = fieldWeight in 5449, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.550881 = idf(docFreq=167, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.024295757 = weight(abstract_txt:that in 5449) [ClassicSimilarity], result of:
            0.024295757 = score(doc=5449,freq=5.0), product of:
              0.08329006 = queryWeight, product of:
                1.2689816 = boost
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.027515264 = queryNorm
              0.29170054 = fieldWeight in 5449, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.047572657 = weight(abstract_txt:conceptual in 5449) [ClassicSimilarity], result of:
            0.047572657 = score(doc=5449,freq=1.0), product of:
              0.17692581 = queryWeight, product of:
                1.307794 = boost
                4.9167504 = idf(docFreq=860, maxDocs=43254)
                0.027515264 = queryNorm
              0.26888478 = fieldWeight in 5449, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9167504 = idf(docFreq=860, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.031778943 = weight(abstract_txt:than in 5449) [ClassicSimilarity], result of:
            0.031778943 = score(doc=5449,freq=1.0), product of:
              0.1488077 = queryWeight, product of:
                1.3849236 = boost
                3.905044 = idf(docFreq=2367, maxDocs=43254)
                0.027515264 = queryNorm
              0.2135571 = fieldWeight in 5449, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.905044 = idf(docFreq=2367, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.12307974 = weight(abstract_txt:skills in 5449) [ClassicSimilarity], result of:
            0.12307974 = score(doc=5449,freq=3.0), product of:
              0.2311906 = queryWeight, product of:
                1.4949574 = boost
                5.6204057 = idf(docFreq=425, maxDocs=43254)
                0.027515264 = queryNorm
              0.5323734 = fieldWeight in 5449, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.6204057 = idf(docFreq=425, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.032411102 = weight(abstract_txt:access in 5449) [ClassicSimilarity], result of:
            0.032411102 = score(doc=5449,freq=1.0), product of:
              0.16241708 = queryWeight, product of:
                1.6176478 = boost
                3.6490016 = idf(docFreq=3058, maxDocs=43254)
                0.027515264 = queryNorm
              0.19955477 = fieldWeight in 5449, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6490016 = idf(docFreq=3058, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.20303068 = weight(abstract_txt:catalogs in 5449) [ClassicSimilarity], result of:
            0.20303068 = score(doc=5449,freq=5.0), product of:
              0.27223083 = queryWeight, product of:
                1.6222298 = boost
                6.098896 = idf(docFreq=263, maxDocs=43254)
                0.027515264 = queryNorm
              0.74580336 = fieldWeight in 5449, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                6.098896 = idf(docFreq=263, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.11355725 = weight(abstract_txt:query in 5449) [ClassicSimilarity], result of:
            0.11355725 = score(doc=5449,freq=4.0), product of:
              0.21910673 = queryWeight, product of:
                1.6805094 = boost
                4.738502 = idf(docFreq=1028, maxDocs=43254)
                0.027515264 = queryNorm
              0.51827365 = fieldWeight in 5449, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.738502 = idf(docFreq=1028, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.042518362 = weight(abstract_txt:users in 5449) [ClassicSimilarity], result of:
            0.042518362 = score(doc=5449,freq=1.0), product of:
              0.21773563 = queryWeight, product of:
                2.2161384 = boost
                3.570746 = idf(docFreq=3307, maxDocs=43254)
                0.027515264 = queryNorm
              0.19527517 = fieldWeight in 5449, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.570746 = idf(docFreq=3307, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.07419011 = weight(abstract_txt:knowledge in 5449) [ClassicSimilarity], result of:
            0.07419011 = score(doc=5449,freq=3.0), product of:
              0.21881081 = queryWeight, product of:
                2.2216034 = boost
                3.5795512 = idf(docFreq=3278, maxDocs=43254)
                0.027515264 = queryNorm
              0.33906054 = fieldWeight in 5449, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.5795512 = idf(docFreq=3278, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
          0.12512021 = weight(abstract_txt:searching in 5449) [ClassicSimilarity], result of:
            0.12512021 = score(doc=5449,freq=4.0), product of:
              0.26756412 = queryWeight, product of:
                2.2744305 = boost
                4.275447 = idf(docFreq=1634, maxDocs=43254)
                0.027515264 = queryNorm
              0.467627 = fieldWeight in 5449, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.275447 = idf(docFreq=1634, maxDocs=43254)
                0.0546875 = fieldNorm(doc=5449)
        0.48 = coord(12/25)
    
  2. Allen, B.: Topic knowledge and online catalog search formulation (1991) 0.43
    0.42608485 = sum of:
      0.42608485 = product of:
        1.0652121 = sum of:
          0.041807774 = weight(abstract_txt:about in 1071) [ClassicSimilarity], result of:
            0.041807774 = score(doc=1071,freq=1.0), product of:
              0.11332754 = queryWeight, product of:
                1.046674 = boost
                3.9350505 = idf(docFreq=2297, maxDocs=43254)
                0.027515264 = queryNorm
              0.36891097 = fieldWeight in 1071, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9350505 = idf(docFreq=2297, maxDocs=43254)
                0.09375 = fieldNorm(doc=1071)
          0.023117252 = weight(abstract_txt:information in 1071) [ClassicSimilarity], result of:
            0.023117252 = score(doc=1071,freq=2.0), product of:
              0.07184466 = queryWeight, product of:
                1.0758837 = boost
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.027515264 = queryNorm
              0.32176715 = fieldWeight in 1071, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.09375 = fieldNorm(doc=1071)
          0.24992065 = weight(abstract_txt:expressions in 1071) [ClassicSimilarity], result of:
            0.24992065 = score(doc=1071,freq=3.0), product of:
              0.22609694 = queryWeight, product of:
                1.2071061 = boost
                6.8073106 = idf(docFreq=129, maxDocs=43254)
                0.027515264 = queryNorm
              1.1053694 = fieldWeight in 1071, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.8073106 = idf(docFreq=129, maxDocs=43254)
                0.09375 = fieldNorm(doc=1071)
          0.06320027 = weight(abstract_txt:more in 1071) [ClassicSimilarity], result of:
            0.06320027 = score(doc=1071,freq=3.0), product of:
              0.113915436 = queryWeight, product of:
                1.2117258 = boost
                3.4166815 = idf(docFreq=3858, maxDocs=43254)
                0.027515264 = queryNorm
              0.5547999 = fieldWeight in 1071, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.4166815 = idf(docFreq=3858, maxDocs=43254)
                0.09375 = fieldNorm(doc=1071)
          0.037252776 = weight(abstract_txt:that in 1071) [ClassicSimilarity], result of:
            0.037252776 = score(doc=1071,freq=4.0), product of:
              0.08329006 = queryWeight, product of:
                1.2689816 = boost
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.027515264 = queryNorm
              0.44726557 = fieldWeight in 1071, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.09375 = fieldNorm(doc=1071)
          0.077043794 = weight(abstract_txt:than in 1071) [ClassicSimilarity], result of:
            0.077043794 = score(doc=1071,freq=2.0), product of:
              0.1488077 = queryWeight, product of:
                1.3849236 = boost
                3.905044 = idf(docFreq=2367, maxDocs=43254)
                0.027515264 = queryNorm
              0.5177406 = fieldWeight in 1071, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.905044 = idf(docFreq=2367, maxDocs=43254)
                0.09375 = fieldNorm(doc=1071)
          0.15565383 = weight(abstract_txt:catalogs in 1071) [ClassicSimilarity], result of:
            0.15565383 = score(doc=1071,freq=1.0), product of:
              0.27223083 = queryWeight, product of:
                1.6222298 = boost
                6.098896 = idf(docFreq=263, maxDocs=43254)
                0.027515264 = queryNorm
              0.5717715 = fieldWeight in 1071, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.098896 = idf(docFreq=263, maxDocs=43254)
                0.09375 = fieldNorm(doc=1071)
          0.14577726 = weight(abstract_txt:users in 1071) [ClassicSimilarity], result of:
            0.14577726 = score(doc=1071,freq=4.0), product of:
              0.21773563 = queryWeight, product of:
                2.2161384 = boost
                3.570746 = idf(docFreq=3307, maxDocs=43254)
                0.027515264 = queryNorm
              0.6695149 = fieldWeight in 1071, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.570746 = idf(docFreq=3307, maxDocs=43254)
                0.09375 = fieldNorm(doc=1071)
          0.16419262 = weight(abstract_txt:knowledge in 1071) [ClassicSimilarity], result of:
            0.16419262 = score(doc=1071,freq=5.0), product of:
              0.21881081 = queryWeight, product of:
                2.2216034 = boost
                3.5795512 = idf(docFreq=3278, maxDocs=43254)
                0.027515264 = queryNorm
              0.75038624 = fieldWeight in 1071, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.5795512 = idf(docFreq=3278, maxDocs=43254)
                0.09375 = fieldNorm(doc=1071)
          0.10724589 = weight(abstract_txt:searching in 1071) [ClassicSimilarity], result of:
            0.10724589 = score(doc=1071,freq=1.0), product of:
              0.26756412 = queryWeight, product of:
                2.2744305 = boost
                4.275447 = idf(docFreq=1634, maxDocs=43254)
                0.027515264 = queryNorm
              0.40082315 = fieldWeight in 1071, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.275447 = idf(docFreq=1634, maxDocs=43254)
                0.09375 = fieldNorm(doc=1071)
        0.4 = coord(10/25)
    
  3. Dumais, S.T.: Latent semantic analysis (2003) 0.40
    0.39511368 = sum of:
      0.39511368 = product of:
        0.6173651 = sum of:
          0.019708373 = weight(abstract_txt:about in 4463) [ClassicSimilarity], result of:
            0.019708373 = score(doc=4463,freq=2.0), product of:
              0.11332754 = queryWeight, product of:
                1.046674 = boost
                3.9350505 = idf(docFreq=2297, maxDocs=43254)
                0.027515264 = queryNorm
              0.1739063 = fieldWeight in 4463, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9350505 = idf(docFreq=2297, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.016346365 = weight(abstract_txt:information in 4463) [ClassicSimilarity], result of:
            0.016346365 = score(doc=4463,freq=9.0), product of:
              0.07184466 = queryWeight, product of:
                1.0758837 = boost
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.027515264 = queryNorm
              0.22752374 = fieldWeight in 4463, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.050692018 = weight(abstract_txt:terms in 4463) [ClassicSimilarity], result of:
            0.050692018 = score(doc=4463,freq=11.0), product of:
              0.12052406 = queryWeight, product of:
                1.0793955 = boost
                4.058069 = idf(docFreq=2031, maxDocs=43254)
                0.027515264 = queryNorm
              0.42059666 = fieldWeight in 4463, product of:
                3.3166249 = tf(freq=11.0), with freq of:
                  11.0 = termFreq=11.0
                4.058069 = idf(docFreq=2031, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.039255515 = weight(abstract_txt:match in 4463) [ClassicSimilarity], result of:
            0.039255515 = score(doc=4463,freq=1.0), product of:
              0.19746113 = queryWeight, product of:
                1.1280774 = boost
                6.361639 = idf(docFreq=202, maxDocs=43254)
                0.027515264 = queryNorm
              0.19880122 = fieldWeight in 4463, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.361639 = idf(docFreq=202, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.042403765 = weight(abstract_txt:syntactic in 4463) [ClassicSimilarity], result of:
            0.042403765 = score(doc=4463,freq=1.0), product of:
              0.20788227 = queryWeight, product of:
                1.1574622 = boost
                6.5273504 = idf(docFreq=171, maxDocs=43254)
                0.027515264 = queryNorm
              0.2039797 = fieldWeight in 4463, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5273504 = idf(docFreq=171, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.021066759 = weight(abstract_txt:more in 4463) [ClassicSimilarity], result of:
            0.021066759 = score(doc=4463,freq=3.0), product of:
              0.113915436 = queryWeight, product of:
                1.2117258 = boost
                3.4166815 = idf(docFreq=3858, maxDocs=43254)
                0.027515264 = queryNorm
              0.1849333 = fieldWeight in 4463, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.4166815 = idf(docFreq=3858, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.018626388 = weight(abstract_txt:that in 4463) [ClassicSimilarity], result of:
            0.018626388 = score(doc=4463,freq=9.0), product of:
              0.08329006 = queryWeight, product of:
                1.2689816 = boost
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.027515264 = queryNorm
              0.22363278 = fieldWeight in 4463, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.025681263 = weight(abstract_txt:than in 4463) [ClassicSimilarity], result of:
            0.025681263 = score(doc=4463,freq=2.0), product of:
              0.1488077 = queryWeight, product of:
                1.3849236 = boost
                3.905044 = idf(docFreq=2367, maxDocs=43254)
                0.027515264 = queryNorm
              0.1725802 = fieldWeight in 4463, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.905044 = idf(docFreq=2367, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.033836722 = weight(abstract_txt:have in 4463) [ClassicSimilarity], result of:
            0.033836722 = score(doc=4463,freq=7.0), product of:
              0.12688804 = queryWeight, product of:
                1.4298104 = boost
                3.2252884 = idf(docFreq=4672, maxDocs=43254)
                0.027515264 = queryNorm
              0.26666597 = fieldWeight in 4463, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                3.2252884 = idf(docFreq=4672, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.047128193 = weight(abstract_txt:2000 in 4463) [ClassicSimilarity], result of:
            0.047128193 = score(doc=4463,freq=1.0), product of:
              0.2553282 = queryWeight, product of:
                1.5710613 = boost
                5.906524 = idf(docFreq=319, maxDocs=43254)
                0.027515264 = queryNorm
              0.18457888 = fieldWeight in 4463, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.906524 = idf(docFreq=319, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.07323954 = weight(abstract_txt:1996 in 4463) [ClassicSimilarity], result of:
            0.07323954 = score(doc=4463,freq=2.0), product of:
              0.2718934 = queryWeight, product of:
                1.6212242 = boost
                6.095115 = idf(docFreq=264, maxDocs=43254)
                0.027515264 = queryNorm
              0.2693686 = fieldWeight in 4463, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.095115 = idf(docFreq=264, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.07254907 = weight(abstract_txt:query in 4463) [ClassicSimilarity], result of:
            0.07254907 = score(doc=4463,freq=5.0), product of:
              0.21910673 = queryWeight, product of:
                1.6805094 = boost
                4.738502 = idf(docFreq=1028, maxDocs=43254)
                0.027515264 = queryNorm
              0.3311129 = fieldWeight in 4463, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.738502 = idf(docFreq=1028, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.047363877 = weight(abstract_txt:subject in 4463) [ClassicSimilarity], result of:
            0.047363877 = score(doc=4463,freq=3.0), product of:
              0.22379275 = queryWeight, product of:
                2.0800881 = boost
                3.9101245 = idf(docFreq=2355, maxDocs=43254)
                0.027515264 = queryNorm
              0.2116417 = fieldWeight in 4463, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9101245 = idf(docFreq=2355, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.024296207 = weight(abstract_txt:users in 4463) [ClassicSimilarity], result of:
            0.024296207 = score(doc=4463,freq=1.0), product of:
              0.21773563 = queryWeight, product of:
                2.2161384 = boost
                3.570746 = idf(docFreq=3307, maxDocs=43254)
                0.027515264 = queryNorm
              0.11158581 = fieldWeight in 4463, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.570746 = idf(docFreq=3307, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.034614842 = weight(abstract_txt:knowledge in 4463) [ClassicSimilarity], result of:
            0.034614842 = score(doc=4463,freq=2.0), product of:
              0.21881081 = queryWeight, product of:
                2.2216034 = boost
                3.5795512 = idf(docFreq=3278, maxDocs=43254)
                0.027515264 = queryNorm
              0.1581953 = fieldWeight in 4463, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5795512 = idf(docFreq=3278, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
          0.050556198 = weight(abstract_txt:searching in 4463) [ClassicSimilarity], result of:
            0.050556198 = score(doc=4463,freq=2.0), product of:
              0.26756412 = queryWeight, product of:
                2.2744305 = boost
                4.275447 = idf(docFreq=1634, maxDocs=43254)
                0.027515264 = queryNorm
              0.18894984 = fieldWeight in 4463, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.275447 = idf(docFreq=1634, maxDocs=43254)
                0.03125 = fieldNorm(doc=4463)
        0.64 = coord(16/25)
    
  4. Klugman, S.: Failures in subject retrieval (1989) 0.34
    0.34415182 = sum of:
      0.34415182 = product of:
        0.8603796 = sum of:
          0.016346365 = weight(abstract_txt:information in 1579) [ClassicSimilarity], result of:
            0.016346365 = score(doc=1579,freq=1.0), product of:
              0.07184466 = queryWeight, product of:
                1.0758837 = boost
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.027515264 = queryNorm
              0.22752374 = fieldWeight in 1579, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.09375 = fieldNorm(doc=1579)
          0.045852657 = weight(abstract_txt:terms in 1579) [ClassicSimilarity], result of:
            0.045852657 = score(doc=1579,freq=1.0), product of:
              0.12052406 = queryWeight, product of:
                1.0793955 = boost
                4.058069 = idf(docFreq=2031, maxDocs=43254)
                0.027515264 = queryNorm
              0.380444 = fieldWeight in 1579, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.058069 = idf(docFreq=2031, maxDocs=43254)
                0.09375 = fieldNorm(doc=1579)
          0.036488697 = weight(abstract_txt:more in 1579) [ClassicSimilarity], result of:
            0.036488697 = score(doc=1579,freq=1.0), product of:
              0.113915436 = queryWeight, product of:
                1.2117258 = boost
                3.4166815 = idf(docFreq=3858, maxDocs=43254)
                0.027515264 = queryNorm
              0.3203139 = fieldWeight in 1579, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4166815 = idf(docFreq=3858, maxDocs=43254)
                0.09375 = fieldNorm(doc=1579)
          0.05425946 = weight(abstract_txt:have in 1579) [ClassicSimilarity], result of:
            0.05425946 = score(doc=1579,freq=2.0), product of:
              0.12688804 = queryWeight, product of:
                1.4298104 = boost
                3.2252884 = idf(docFreq=4672, maxDocs=43254)
                0.027515264 = queryNorm
              0.42761683 = fieldWeight in 1579, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2252884 = idf(docFreq=4672, maxDocs=43254)
                0.09375 = fieldNorm(doc=1579)
          0.12181735 = weight(abstract_txt:skills in 1579) [ClassicSimilarity], result of:
            0.12181735 = score(doc=1579,freq=1.0), product of:
              0.2311906 = queryWeight, product of:
                1.4949574 = boost
                5.6204057 = idf(docFreq=425, maxDocs=43254)
                0.027515264 = queryNorm
              0.52691305 = fieldWeight in 1579, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6204057 = idf(docFreq=425, maxDocs=43254)
                0.09375 = fieldNorm(doc=1579)
          0.055561893 = weight(abstract_txt:access in 1579) [ClassicSimilarity], result of:
            0.055561893 = score(doc=1579,freq=1.0), product of:
              0.16241708 = queryWeight, product of:
                1.6176478 = boost
                3.6490016 = idf(docFreq=3058, maxDocs=43254)
                0.027515264 = queryNorm
              0.34209388 = fieldWeight in 1579, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6490016 = idf(docFreq=3058, maxDocs=43254)
                0.09375 = fieldNorm(doc=1579)
          0.15565383 = weight(abstract_txt:catalogs in 1579) [ClassicSimilarity], result of:
            0.15565383 = score(doc=1579,freq=1.0), product of:
              0.27223083 = queryWeight, product of:
                1.6222298 = boost
                6.098896 = idf(docFreq=263, maxDocs=43254)
                0.027515264 = queryNorm
              0.5717715 = fieldWeight in 1579, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.098896 = idf(docFreq=263, maxDocs=43254)
                0.09375 = fieldNorm(doc=1579)
          0.16407327 = weight(abstract_txt:subject in 1579) [ClassicSimilarity], result of:
            0.16407327 = score(doc=1579,freq=4.0), product of:
              0.22379275 = queryWeight, product of:
                2.0800881 = boost
                3.9101245 = idf(docFreq=2355, maxDocs=43254)
                0.027515264 = queryNorm
              0.73314834 = fieldWeight in 1579, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.9101245 = idf(docFreq=2355, maxDocs=43254)
                0.09375 = fieldNorm(doc=1579)
          0.10308007 = weight(abstract_txt:users in 1579) [ClassicSimilarity], result of:
            0.10308007 = score(doc=1579,freq=2.0), product of:
              0.21773563 = queryWeight, product of:
                2.2161384 = boost
                3.570746 = idf(docFreq=3307, maxDocs=43254)
                0.027515264 = queryNorm
              0.47341847 = fieldWeight in 1579, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.570746 = idf(docFreq=3307, maxDocs=43254)
                0.09375 = fieldNorm(doc=1579)
          0.10724589 = weight(abstract_txt:searching in 1579) [ClassicSimilarity], result of:
            0.10724589 = score(doc=1579,freq=1.0), product of:
              0.26756412 = queryWeight, product of:
                2.2744305 = boost
                4.275447 = idf(docFreq=1634, maxDocs=43254)
                0.027515264 = queryNorm
              0.40082315 = fieldWeight in 1579, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.275447 = idf(docFreq=1634, maxDocs=43254)
                0.09375 = fieldNorm(doc=1579)
        0.4 = coord(10/25)
    
  5. Taylor, A.G.: Enhancing subject access in online systems : the year's work in subject analysis, 1991 (1992) 0.31
    0.30793056 = sum of:
      0.30793056 = product of:
        0.7698264 = sum of:
          0.016346365 = weight(abstract_txt:information in 1504) [ClassicSimilarity], result of:
            0.016346365 = score(doc=1504,freq=1.0), product of:
              0.07184466 = queryWeight, product of:
                1.0758837 = boost
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.027515264 = queryNorm
              0.22752374 = fieldWeight in 1504, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.09375 = fieldNorm(doc=1504)
          0.036488697 = weight(abstract_txt:more in 1504) [ClassicSimilarity], result of:
            0.036488697 = score(doc=1504,freq=1.0), product of:
              0.113915436 = queryWeight, product of:
                1.2117258 = boost
                3.4166815 = idf(docFreq=3858, maxDocs=43254)
                0.027515264 = queryNorm
              0.3203139 = fieldWeight in 1504, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4166815 = idf(docFreq=3858, maxDocs=43254)
                0.09375 = fieldNorm(doc=1504)
          0.026341692 = weight(abstract_txt:that in 1504) [ClassicSimilarity], result of:
            0.026341692 = score(doc=1504,freq=2.0), product of:
              0.08329006 = queryWeight, product of:
                1.2689816 = boost
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.027515264 = queryNorm
              0.3162645 = fieldWeight in 1504, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.09375 = fieldNorm(doc=1504)
          0.054478183 = weight(abstract_txt:than in 1504) [ClassicSimilarity], result of:
            0.054478183 = score(doc=1504,freq=1.0), product of:
              0.1488077 = queryWeight, product of:
                1.3849236 = boost
                3.905044 = idf(docFreq=2367, maxDocs=43254)
                0.027515264 = queryNorm
              0.36609787 = fieldWeight in 1504, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.905044 = idf(docFreq=2367, maxDocs=43254)
                0.09375 = fieldNorm(doc=1504)
          0.038367234 = weight(abstract_txt:have in 1504) [ClassicSimilarity], result of:
            0.038367234 = score(doc=1504,freq=1.0), product of:
              0.12688804 = queryWeight, product of:
                1.4298104 = boost
                3.2252884 = idf(docFreq=4672, maxDocs=43254)
                0.027515264 = queryNorm
              0.3023708 = fieldWeight in 1504, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.2252884 = idf(docFreq=4672, maxDocs=43254)
                0.09375 = fieldNorm(doc=1504)
          0.078576386 = weight(abstract_txt:access in 1504) [ClassicSimilarity], result of:
            0.078576386 = score(doc=1504,freq=2.0), product of:
              0.16241708 = queryWeight, product of:
                1.6176478 = boost
                3.6490016 = idf(docFreq=3058, maxDocs=43254)
                0.027515264 = queryNorm
              0.48379385 = fieldWeight in 1504, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6490016 = idf(docFreq=3058, maxDocs=43254)
                0.09375 = fieldNorm(doc=1504)
          0.15565383 = weight(abstract_txt:catalogs in 1504) [ClassicSimilarity], result of:
            0.15565383 = score(doc=1504,freq=1.0), product of:
              0.27223083 = queryWeight, product of:
                1.6222298 = boost
                6.098896 = idf(docFreq=263, maxDocs=43254)
                0.027515264 = queryNorm
              0.5717715 = fieldWeight in 1504, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.098896 = idf(docFreq=263, maxDocs=43254)
                0.09375 = fieldNorm(doc=1504)
          0.1834395 = weight(abstract_txt:subject in 1504) [ClassicSimilarity], result of:
            0.1834395 = score(doc=1504,freq=5.0), product of:
              0.22379275 = queryWeight, product of:
                2.0800881 = boost
                3.9101245 = idf(docFreq=2355, maxDocs=43254)
                0.027515264 = queryNorm
              0.81968474 = fieldWeight in 1504, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.9101245 = idf(docFreq=2355, maxDocs=43254)
                0.09375 = fieldNorm(doc=1504)
          0.07288863 = weight(abstract_txt:users in 1504) [ClassicSimilarity], result of:
            0.07288863 = score(doc=1504,freq=1.0), product of:
              0.21773563 = queryWeight, product of:
                2.2161384 = boost
                3.570746 = idf(docFreq=3307, maxDocs=43254)
                0.027515264 = queryNorm
              0.33475745 = fieldWeight in 1504, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.570746 = idf(docFreq=3307, maxDocs=43254)
                0.09375 = fieldNorm(doc=1504)
          0.10724589 = weight(abstract_txt:searching in 1504) [ClassicSimilarity], result of:
            0.10724589 = score(doc=1504,freq=1.0), product of:
              0.26756412 = queryWeight, product of:
                2.2744305 = boost
                4.275447 = idf(docFreq=1634, maxDocs=43254)
                0.027515264 = queryNorm
              0.40082315 = fieldWeight in 1504, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.275447 = idf(docFreq=1634, maxDocs=43254)
                0.09375 = fieldNorm(doc=1504)
        0.4 = coord(10/25)