Document (#4838)

Author
Walker, S.
Title
Views on classification as a search tool on a computer
Source
Computers in libraries international 91. Proc. of the 5th Annual Conference on Computers in Libraries, London, February 1991
Imprint
Westport, Conn. : Meckler
Year
1991
Pages
S.130-139
Abstract
Classification numbers and shelf marks may be useful in online searching. Ways of using classification in online searching include: direct classification searching; use of classification as linking devices or pivots; and direct or indirect searching of classification schedules and indexes. Discusses each of these techniques, mainly in the context of library OPAC searching although they may be applied to other types of online retrieval systems. The use of classification numbers as pivots enabling online searchers to retrieve related references by means of automation searching of identical or related classification numbers is reviewed with reference to the OKAPI project; BLCMP project and the DDC online project
Theme
Klassifikationssysteme im Online-Retrieval
Object
DDC
OKAPI

Similar documents (author)

  1. Walker, S.: Okapi : Evaluating and enhancing an experimental online catalog (1987) 4.80
    4.796191 = sum of:
      4.796191 = weight(author_txt:walker in 373) [ClassicSimilarity], result of:
        4.796191 = fieldWeight in 373, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.6739063 = idf(docFreq=53, maxDocs=42740)
          0.625 = fieldNorm(doc=373)
    
  2. Walker, S.: Ease of use in online catalogues : a plea for the user (1986) 4.80
    4.796191 = sum of:
      4.796191 = weight(author_txt:walker in 375) [ClassicSimilarity], result of:
        4.796191 = fieldWeight in 375, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.6739063 = idf(docFreq=53, maxDocs=42740)
          0.625 = fieldNorm(doc=375)
    
  3. Walker, S.: ¬The free language approach to online catalogues (1985) 4.80
    4.796191 = sum of:
      4.796191 = weight(author_txt:walker in 383) [ClassicSimilarity], result of:
        4.796191 = fieldWeight in 383, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.6739063 = idf(docFreq=53, maxDocs=42740)
          0.625 = fieldNorm(doc=383)
    
  4. Walker, S.: ¬Der Mensch-Maschine-Dialog bei Online-Benutzer-Katalogen (1987) 4.80
    4.796191 = sum of:
      4.796191 = weight(author_txt:walker in 827) [ClassicSimilarity], result of:
        4.796191 = fieldWeight in 827, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.6739063 = idf(docFreq=53, maxDocs=42740)
          0.625 = fieldNorm(doc=827)
    
  5. Walker, R.: Categorization 4.80
    4.796191 = sum of:
      4.796191 = weight(author_txt:walker in 1019) [ClassicSimilarity], result of:
        4.796191 = fieldWeight in 1019, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.6739063 = idf(docFreq=53, maxDocs=42740)
          0.625 = fieldNorm(doc=1019)
    

Similar documents (content)

  1. Micco, M.: ¬The next generation of online public access catalogs : a new look at subject access using hypermedia (1991) 0.19
    0.19455087 = sum of:
      0.19455087 = product of:
        0.81062865 = sum of:
          0.070116386 = weight(abstract_txt:references in 1643) [ClassicSimilarity], result of:
            0.070116386 = score(doc=1643,freq=1.0), product of:
              0.10030683 = queryWeight, product of:
                5.5921526 = idf(docFreq=432, maxDocs=42740)
                0.01793707 = queryNorm
              0.6990191 = fieldWeight in 1643, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5921526 = idf(docFreq=432, maxDocs=42740)
                0.125 = fieldNorm(doc=1643)
          0.0918015 = weight(abstract_txt:linking in 1643) [ClassicSimilarity], result of:
            0.0918015 = score(doc=1643,freq=1.0), product of:
              0.120046824 = queryWeight, product of:
                1.0939817 = boost
                6.117713 = idf(docFreq=255, maxDocs=42740)
                0.01793707 = queryNorm
              0.7647141 = fieldWeight in 1643, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.117713 = idf(docFreq=255, maxDocs=42740)
                0.125 = fieldNorm(doc=1643)
          0.10098476 = weight(abstract_txt:project in 1643) [ClassicSimilarity], result of:
            0.10098476 = score(doc=1643,freq=1.0), product of:
              0.18449947 = queryWeight, product of:
                2.3490536 = boost
                4.3787556 = idf(docFreq=1456, maxDocs=42740)
                0.01793707 = queryNorm
              0.54734445 = fieldWeight in 1643, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3787556 = idf(docFreq=1456, maxDocs=42740)
                0.125 = fieldNorm(doc=1643)
          0.2428929 = weight(abstract_txt:numbers in 1643) [ClassicSimilarity], result of:
            0.2428929 = score(doc=1643,freq=1.0), product of:
              0.33120823 = queryWeight, product of:
                3.1473565 = boost
                5.8668327 = idf(docFreq=328, maxDocs=42740)
                0.01793707 = queryNorm
              0.7333541 = fieldWeight in 1643, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8668327 = idf(docFreq=328, maxDocs=42740)
                0.125 = fieldNorm(doc=1643)
          0.09955766 = weight(abstract_txt:online in 1643) [ClassicSimilarity], result of:
            0.09955766 = score(doc=1643,freq=1.0), product of:
              0.21668255 = queryWeight, product of:
                3.2864854 = boost
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.01793707 = queryNorm
              0.4594632 = fieldWeight in 1643, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.125 = fieldNorm(doc=1643)
          0.20527548 = weight(abstract_txt:classification in 1643) [ClassicSimilarity], result of:
            0.20527548 = score(doc=1643,freq=1.0), product of:
              0.4105558 = queryWeight, product of:
                5.722237 = boost
                3.9999528 = idf(docFreq=2127, maxDocs=42740)
                0.01793707 = queryNorm
              0.4999941 = fieldWeight in 1643, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9999528 = idf(docFreq=2127, maxDocs=42740)
                0.125 = fieldNorm(doc=1643)
        0.24 = coord(6/25)
    
  2. Frâncu, V.: ¬A universal classification system going through changes (2001) 0.19
    0.19184305 = sum of:
      0.19184305 = product of:
        0.6851537 = sum of:
          0.042855438 = weight(abstract_txt:searchers in 2594) [ClassicSimilarity], result of:
            0.042855438 = score(doc=2594,freq=1.0), product of:
              0.11467659 = queryWeight, product of:
                1.0692325 = boost
                5.979311 = idf(docFreq=293, maxDocs=42740)
                0.01793707 = queryNorm
              0.37370694 = fieldWeight in 2594, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.979311 = idf(docFreq=293, maxDocs=42740)
                0.0625 = fieldNorm(doc=2594)
          0.05919276 = weight(abstract_txt:devices in 2594) [ClassicSimilarity], result of:
            0.05919276 = score(doc=2594,freq=1.0), product of:
              0.14222738 = queryWeight, product of:
                1.1907659 = boost
                6.658944 = idf(docFreq=148, maxDocs=42740)
                0.01793707 = queryNorm
              0.416184 = fieldWeight in 2594, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.658944 = idf(docFreq=148, maxDocs=42740)
                0.0625 = fieldNorm(doc=2594)
          0.07437606 = weight(abstract_txt:schedules in 2594) [ClassicSimilarity], result of:
            0.07437606 = score(doc=2594,freq=1.0), product of:
              0.16561243 = queryWeight, product of:
                1.2849351 = boost
                7.1855536 = idf(docFreq=87, maxDocs=42740)
                0.01793707 = queryNorm
              0.4490971 = fieldWeight in 2594, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.1855536 = idf(docFreq=87, maxDocs=42740)
                0.0625 = fieldNorm(doc=2594)
          0.12144645 = weight(abstract_txt:numbers in 2594) [ClassicSimilarity], result of:
            0.12144645 = score(doc=2594,freq=1.0), product of:
              0.33120823 = queryWeight, product of:
                3.1473565 = boost
                5.8668327 = idf(docFreq=328, maxDocs=42740)
                0.01793707 = queryNorm
              0.36667705 = fieldWeight in 2594, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8668327 = idf(docFreq=328, maxDocs=42740)
                0.0625 = fieldNorm(doc=2594)
          0.04977883 = weight(abstract_txt:online in 2594) [ClassicSimilarity], result of:
            0.04977883 = score(doc=2594,freq=1.0), product of:
              0.21668255 = queryWeight, product of:
                3.2864854 = boost
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.01793707 = queryNorm
              0.2297316 = fieldWeight in 2594, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.0625 = fieldNorm(doc=2594)
          0.13222872 = weight(abstract_txt:searching in 2594) [ClassicSimilarity], result of:
            0.13222872 = score(doc=2594,freq=2.0), product of:
              0.35053262 = queryWeight, product of:
                4.5790415 = boost
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.01793707 = queryNorm
              0.3772223 = fieldWeight in 2594, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.0625 = fieldNorm(doc=2594)
          0.20527548 = weight(abstract_txt:classification in 2594) [ClassicSimilarity], result of:
            0.20527548 = score(doc=2594,freq=4.0), product of:
              0.4105558 = queryWeight, product of:
                5.722237 = boost
                3.9999528 = idf(docFreq=2127, maxDocs=42740)
                0.01793707 = queryNorm
              0.4999941 = fieldWeight in 2594, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.9999528 = idf(docFreq=2127, maxDocs=42740)
                0.0625 = fieldNorm(doc=2594)
        0.28 = coord(7/25)
    
  3. Markey, K.: Searching and browsing the Dewey Decimal Classification in an online catalog (1987) 0.16
    0.16166791 = sum of:
      0.16166791 = product of:
        0.67361635 = sum of:
          0.07422779 = weight(abstract_txt:searchers in 1510) [ClassicSimilarity], result of:
            0.07422779 = score(doc=1510,freq=3.0), product of:
              0.11467659 = queryWeight, product of:
                1.0692325 = boost
                5.979311 = idf(docFreq=293, maxDocs=42740)
                0.01793707 = queryNorm
              0.6472794 = fieldWeight in 1510, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.979311 = idf(docFreq=293, maxDocs=42740)
                0.0625 = fieldNorm(doc=1510)
          0.10518363 = weight(abstract_txt:schedules in 1510) [ClassicSimilarity], result of:
            0.10518363 = score(doc=1510,freq=2.0), product of:
              0.16561243 = queryWeight, product of:
                1.2849351 = boost
                7.1855536 = idf(docFreq=87, maxDocs=42740)
                0.01793707 = queryNorm
              0.6351192 = fieldWeight in 1510, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.1855536 = idf(docFreq=87, maxDocs=42740)
                0.0625 = fieldNorm(doc=1510)
          0.05049238 = weight(abstract_txt:project in 1510) [ClassicSimilarity], result of:
            0.05049238 = score(doc=1510,freq=1.0), product of:
              0.18449947 = queryWeight, product of:
                2.3490536 = boost
                4.3787556 = idf(docFreq=1456, maxDocs=42740)
                0.01793707 = queryNorm
              0.27367222 = fieldWeight in 1510, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3787556 = idf(docFreq=1456, maxDocs=42740)
                0.0625 = fieldNorm(doc=1510)
          0.17243893 = weight(abstract_txt:online in 1510) [ClassicSimilarity], result of:
            0.17243893 = score(doc=1510,freq=12.0), product of:
              0.21668255 = queryWeight, product of:
                3.2864854 = boost
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.01793707 = queryNorm
              0.7958136 = fieldWeight in 1510, product of:
                3.4641016 = tf(freq=12.0), with freq of:
                  12.0 = termFreq=12.0
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.0625 = fieldNorm(doc=1510)
          0.093499824 = weight(abstract_txt:searching in 1510) [ClassicSimilarity], result of:
            0.093499824 = score(doc=1510,freq=1.0), product of:
              0.35053262 = queryWeight, product of:
                4.5790415 = boost
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.01793707 = queryNorm
              0.26673645 = fieldWeight in 1510, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.0625 = fieldNorm(doc=1510)
          0.17777379 = weight(abstract_txt:classification in 1510) [ClassicSimilarity], result of:
            0.17777379 = score(doc=1510,freq=3.0), product of:
              0.4105558 = queryWeight, product of:
                5.722237 = boost
                3.9999528 = idf(docFreq=2127, maxDocs=42740)
                0.01793707 = queryNorm
              0.4330076 = fieldWeight in 1510, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9999528 = idf(docFreq=2127, maxDocs=42740)
                0.0625 = fieldNorm(doc=1510)
        0.24 = coord(6/25)
    
  4. El-Hoshy, L.M.: Relationships in Library of Congress Subject Headings (2001) 0.15
    0.14923821 = sum of:
      0.14923821 = product of:
        0.62182593 = sum of:
          0.052587293 = weight(abstract_txt:references in 2152) [ClassicSimilarity], result of:
            0.052587293 = score(doc=2152,freq=1.0), product of:
              0.10030683 = queryWeight, product of:
                5.5921526 = idf(docFreq=432, maxDocs=42740)
                0.01793707 = queryNorm
              0.52426434 = fieldWeight in 2152, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5921526 = idf(docFreq=432, maxDocs=42740)
                0.09375 = fieldNorm(doc=2152)
          0.06965497 = weight(abstract_txt:reviewed in 2152) [ClassicSimilarity], result of:
            0.06965497 = score(doc=2152,freq=1.0), product of:
              0.12097939 = queryWeight, product of:
                1.0982227 = boost
                6.1414294 = idf(docFreq=249, maxDocs=42740)
                0.01793707 = queryNorm
              0.575759 = fieldWeight in 2152, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1414294 = idf(docFreq=249, maxDocs=42740)
                0.09375 = fieldNorm(doc=2152)
          0.08878915 = weight(abstract_txt:devices in 2152) [ClassicSimilarity], result of:
            0.08878915 = score(doc=2152,freq=1.0), product of:
              0.14222738 = queryWeight, product of:
                1.1907659 = boost
                6.658944 = idf(docFreq=148, maxDocs=42740)
                0.01793707 = queryNorm
              0.62427604 = fieldWeight in 2152, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.658944 = idf(docFreq=148, maxDocs=42740)
                0.09375 = fieldNorm(doc=2152)
          0.18216968 = weight(abstract_txt:numbers in 2152) [ClassicSimilarity], result of:
            0.18216968 = score(doc=2152,freq=1.0), product of:
              0.33120823 = queryWeight, product of:
                3.1473565 = boost
                5.8668327 = idf(docFreq=328, maxDocs=42740)
                0.01793707 = queryNorm
              0.55001557 = fieldWeight in 2152, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8668327 = idf(docFreq=328, maxDocs=42740)
                0.09375 = fieldNorm(doc=2152)
          0.07466824 = weight(abstract_txt:online in 2152) [ClassicSimilarity], result of:
            0.07466824 = score(doc=2152,freq=1.0), product of:
              0.21668255 = queryWeight, product of:
                3.2864854 = boost
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.01793707 = queryNorm
              0.3445974 = fieldWeight in 2152, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.09375 = fieldNorm(doc=2152)
          0.15395662 = weight(abstract_txt:classification in 2152) [ClassicSimilarity], result of:
            0.15395662 = score(doc=2152,freq=1.0), product of:
              0.4105558 = queryWeight, product of:
                5.722237 = boost
                3.9999528 = idf(docFreq=2127, maxDocs=42740)
                0.01793707 = queryNorm
              0.3749956 = fieldWeight in 2152, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9999528 = idf(docFreq=2127, maxDocs=42740)
                0.09375 = fieldNorm(doc=2152)
        0.24 = coord(6/25)
    
  5. Rolland-Thomas, P.; Mercure, G.: Subject access in a bilingual online catalogue (1989) 0.13
    0.13049524 = sum of:
      0.13049524 = product of:
        0.54373014 = sum of:
          0.043822743 = weight(abstract_txt:references in 1576) [ClassicSimilarity], result of:
            0.043822743 = score(doc=1576,freq=1.0), product of:
              0.10030683 = queryWeight, product of:
                5.5921526 = idf(docFreq=432, maxDocs=42740)
                0.01793707 = queryNorm
              0.4368869 = fieldWeight in 1576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5921526 = idf(docFreq=432, maxDocs=42740)
                0.078125 = fieldNorm(doc=1576)
          0.062988855 = weight(abstract_txt:automation in 1576) [ClassicSimilarity], result of:
            0.062988855 = score(doc=1576,freq=1.0), product of:
              0.12775365 = queryWeight, product of:
                1.1285515 = boost
                6.3110323 = idf(docFreq=210, maxDocs=42740)
                0.01793707 = queryNorm
              0.49304938 = fieldWeight in 1576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.3110323 = idf(docFreq=210, maxDocs=42740)
                0.078125 = fieldNorm(doc=1576)
          0.12952307 = weight(abstract_txt:marks in 1576) [ClassicSimilarity], result of:
            0.12952307 = score(doc=1576,freq=1.0), product of:
              0.20658346 = queryWeight, product of:
                1.4351012 = boost
                8.025305 = idf(docFreq=37, maxDocs=42740)
                0.01793707 = queryNorm
              0.62697697 = fieldWeight in 1576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.025305 = idf(docFreq=37, maxDocs=42740)
                0.078125 = fieldNorm(doc=1576)
          0.06222354 = weight(abstract_txt:online in 1576) [ClassicSimilarity], result of:
            0.06222354 = score(doc=1576,freq=1.0), product of:
              0.21668255 = queryWeight, product of:
                3.2864854 = boost
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.01793707 = queryNorm
              0.2871645 = fieldWeight in 1576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.078125 = fieldNorm(doc=1576)
          0.11687479 = weight(abstract_txt:searching in 1576) [ClassicSimilarity], result of:
            0.11687479 = score(doc=1576,freq=1.0), product of:
              0.35053262 = queryWeight, product of:
                4.5790415 = boost
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.01793707 = queryNorm
              0.33342057 = fieldWeight in 1576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.078125 = fieldNorm(doc=1576)
          0.12829718 = weight(abstract_txt:classification in 1576) [ClassicSimilarity], result of:
            0.12829718 = score(doc=1576,freq=1.0), product of:
              0.4105558 = queryWeight, product of:
                5.722237 = boost
                3.9999528 = idf(docFreq=2127, maxDocs=42740)
                0.01793707 = queryNorm
              0.3124963 = fieldWeight in 1576, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9999528 = idf(docFreq=2127, maxDocs=42740)
                0.078125 = fieldNorm(doc=1576)
        0.24 = coord(6/25)