Search (3851 results, page 1 of 193)

  1. Rocha Souza, R. = > Souza, R.R.: 0.17
    0.16651697 = product of:
      0.33303395 = sum of:
        0.33303395 = product of:
          0.6660679 = sum of:
            0.6660679 = weight(_text_:r.r in 2439) [ClassicSimilarity], result of:
              0.6660679 = score(doc=2439,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.9143724 = fieldWeight in 2439, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.1875 = fieldNorm(doc=2439)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  2. Baños, R.R. -> Ruiz-Baños, R.: 0.17
    0.16651697 = product of:
      0.33303395 = sum of:
        0.33303395 = product of:
          0.6660679 = sum of:
            0.6660679 = weight(_text_:r.r in 6355) [ClassicSimilarity], result of:
              0.6660679 = score(doc=6355,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.9143724 = fieldWeight in 6355, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.1875 = fieldNorm(doc=6355)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  3. Baños, R.R. -> Ruíz-Baños, R.: 0.17
    0.16651697 = product of:
      0.33303395 = sum of:
        0.33303395 = product of:
          0.6660679 = sum of:
            0.6660679 = weight(_text_:r.r in 54) [ClassicSimilarity], result of:
              0.6660679 = score(doc=54,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.9143724 = fieldWeight in 54, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.1875 = fieldNorm(doc=54)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  4. Moreno, R.R. -> Bailón-Moreno, R.: 0.17
    0.16651697 = product of:
      0.33303395 = sum of:
        0.33303395 = product of:
          0.6660679 = sum of:
            0.6660679 = weight(_text_:r.r in 55) [ClassicSimilarity], result of:
              0.6660679 = score(doc=55,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.9143724 = fieldWeight in 55, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.1875 = fieldNorm(doc=55)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  5. Rocha Souza, R. -> Souza, R.R.: 0.17
    0.16651697 = product of:
      0.33303395 = sum of:
        0.33303395 = product of:
          0.6660679 = sum of:
            0.6660679 = weight(_text_:r.r in 879) [ClassicSimilarity], result of:
              0.6660679 = score(doc=879,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.9143724 = fieldWeight in 879, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.1875 = fieldNorm(doc=879)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  6. Rocha Souza, R. => Souza, R.R.: 0.17
    0.16651697 = product of:
      0.33303395 = sum of:
        0.33303395 = product of:
          0.6660679 = sum of:
            0.6660679 = weight(_text_:r.r in 3619) [ClassicSimilarity], result of:
              0.6660679 = score(doc=3619,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.9143724 = fieldWeight in 3619, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.1875 = fieldNorm(doc=3619)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  7. Camden, B.P.B.; Intner, S.S.; Hill, J.S.; Reynolds, R.R.; Garrison, W.A.: Reflections on cataloging leadership (2008) 0.14
    0.13712914 = product of:
      0.2742583 = sum of:
        0.2742583 = sum of:
          0.22202265 = weight(_text_:r.r in 2547) [ClassicSimilarity], result of:
            0.22202265 = score(doc=2547,freq=2.0), product of:
              0.34793016 = queryWeight, product of:
                7.2195506 = idf(docFreq=87, maxDocs=44218)
                0.048192773 = queryNorm
              0.63812417 = fieldWeight in 2547, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.2195506 = idf(docFreq=87, maxDocs=44218)
                0.0625 = fieldNorm(doc=2547)
          0.052235644 = weight(_text_:22 in 2547) [ClassicSimilarity], result of:
            0.052235644 = score(doc=2547,freq=2.0), product of:
              0.16876288 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.048192773 = queryNorm
              0.30952093 = fieldWeight in 2547, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0625 = fieldNorm(doc=2547)
      0.5 = coord(1/2)
    
    Date
    10. 9.2000 17:38:22
  8. Ackermann, E.: Piaget's constructivism, Papert's constructionism : what's the difference? (2001) 0.12
    0.12259897 = product of:
      0.24519794 = sum of:
        0.24519794 = product of:
          0.49039587 = sum of:
            0.19135725 = weight(_text_:3a in 692) [ClassicSimilarity], result of:
              0.19135725 = score(doc=692,freq=2.0), product of:
                0.40857887 = queryWeight, product of:
                  8.478011 = idf(docFreq=24, maxDocs=44218)
                  0.048192773 = queryNorm
                0.46834838 = fieldWeight in 692, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  8.478011 = idf(docFreq=24, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=692)
            0.29903862 = weight(_text_:2c in 692) [ClassicSimilarity], result of:
              0.29903862 = score(doc=692,freq=2.0), product of:
                0.51076025 = queryWeight, product of:
                  10.598275 = idf(docFreq=2, maxDocs=44218)
                  0.048192773 = queryNorm
                0.5854775 = fieldWeight in 692, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  10.598275 = idf(docFreq=2, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=692)
          0.5 = coord(2/4)
      0.5 = coord(1/2)
    
    Content
    Vgl.: https://www.semanticscholar.org/paper/Piaget-%E2%80%99-s-Constructivism-%2C-Papert-%E2%80%99-s-%3A-What-%E2%80%99-s-Ackermann/89cbcc1e740a4591443ff4765a6ae8df0fdf5554. Darunter weitere Hinweise auf verwandte Beiträge. Auch unter: Learning Group Publication 5(2001) no.3, S.438.
  9. Braam, R.R.; Bruil, J.: Quality of indexing information : authors' views on indexing of their articles in chemical abstracts online CA-file (1992) 0.12
    0.119327694 = sum of:
      0.036069203 = product of:
        0.14427681 = sum of:
          0.14427681 = weight(_text_:author's in 2638) [ClassicSimilarity], result of:
            0.14427681 = score(doc=2638,freq=2.0), product of:
              0.32386282 = queryWeight, product of:
                6.7201533 = idf(docFreq=144, maxDocs=44218)
                0.048192773 = queryNorm
              0.44548744 = fieldWeight in 2638, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.7201533 = idf(docFreq=144, maxDocs=44218)
                0.046875 = fieldNorm(doc=2638)
        0.25 = coord(1/4)
      0.08325849 = product of:
        0.16651697 = sum of:
          0.16651697 = weight(_text_:r.r in 2638) [ClassicSimilarity], result of:
            0.16651697 = score(doc=2638,freq=2.0), product of:
              0.34793016 = queryWeight, product of:
                7.2195506 = idf(docFreq=87, maxDocs=44218)
                0.048192773 = queryNorm
              0.4785931 = fieldWeight in 2638, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.2195506 = idf(docFreq=87, maxDocs=44218)
                0.046875 = fieldNorm(doc=2638)
        0.5 = coord(1/2)
    
    Abstract
    Studies the quality of subject indexing by Chemical Abstracts Indexing Service by confronting authors with the particular indexing terms attributed to their computer, for 270 articles published in 54 journals, 5 articles out of each journal. Responses (80%) indicate the superior quality of keywords, both as content descriptors and as retrieval tools. Author judgements on these 2 different aspects do not always converge, however. CAS's indexing policy to cover only 'new' aspects is reflected in author's judgements that index lists are somewhat incomplete, in particular in the case of thesaurus terms (index headings). The large effort expanded by CAS in maintaining and using a subject thesuaurs, in order to select valid index headings, as compared to quick and cheap keyword postings, does not lead to clear superior quality of thesaurus terms for document description nor in retrieval. Some 20% of papers were not placed in 'proper' CA main section, according to authors. As concerns the use of indexing data by third parties, in bibliometrics, users should be aware of the indexing policies behind the data, in order to prevent invalid interpretations
  10. Dewey, M.: Decimal classification beginnings (1990) 0.11
    0.11131514 = sum of:
      0.07213841 = product of:
        0.28855363 = sum of:
          0.28855363 = weight(_text_:author's in 3554) [ClassicSimilarity], result of:
            0.28855363 = score(doc=3554,freq=2.0), product of:
              0.32386282 = queryWeight, product of:
                6.7201533 = idf(docFreq=144, maxDocs=44218)
                0.048192773 = queryNorm
              0.8909749 = fieldWeight in 3554, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.7201533 = idf(docFreq=144, maxDocs=44218)
                0.09375 = fieldNorm(doc=3554)
        0.25 = coord(1/4)
      0.039176732 = product of:
        0.078353465 = sum of:
          0.078353465 = weight(_text_:22 in 3554) [ClassicSimilarity], result of:
            0.078353465 = score(doc=3554,freq=2.0), product of:
              0.16876288 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.048192773 = queryNorm
              0.46428138 = fieldWeight in 3554, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.09375 = fieldNorm(doc=3554)
        0.5 = coord(1/2)
    
    Abstract
    Describes the author's development of the Dewey Decimal Classification
    Date
    25.12.1995 22:28:43
  11. Larson, R.R.: Between Scylla and Charybdis : searching in the online catalog (1991) 0.11
    0.11101133 = product of:
      0.22202265 = sum of:
        0.22202265 = product of:
          0.4440453 = sum of:
            0.4440453 = weight(_text_:r.r in 462) [ClassicSimilarity], result of:
              0.4440453 = score(doc=462,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.2762483 = fieldWeight in 462, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.125 = fieldNorm(doc=462)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  12. Shaw, R.R.: Classification systems (1962/63) 0.11
    0.11101133 = product of:
      0.22202265 = sum of:
        0.22202265 = product of:
          0.4440453 = sum of:
            0.4440453 = weight(_text_:r.r in 603) [ClassicSimilarity], result of:
              0.4440453 = score(doc=603,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.2762483 = fieldWeight in 603, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.125 = fieldNorm(doc=603)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  13. Sokal, R.R.: Classification: purposes, principles, progress, prospects (1974) 0.11
    0.11101133 = product of:
      0.22202265 = sum of:
        0.22202265 = product of:
          0.4440453 = sum of:
            0.4440453 = weight(_text_:r.r in 2602) [ClassicSimilarity], result of:
              0.4440453 = score(doc=2602,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.2762483 = fieldWeight in 2602, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.125 = fieldNorm(doc=2602)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  14. Larson, R.R.: Transaction logs : gathering information about MELVYL (1984) 0.11
    0.11101133 = product of:
      0.22202265 = sum of:
        0.22202265 = product of:
          0.4440453 = sum of:
            0.4440453 = weight(_text_:r.r in 6042) [ClassicSimilarity], result of:
              0.4440453 = score(doc=6042,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.2762483 = fieldWeight in 6042, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.125 = fieldNorm(doc=6042)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  15. Larson, R.R.; Graham, V.: Monitoring and evaluating MELVYL (1983) 0.11
    0.11101133 = product of:
      0.22202265 = sum of:
        0.22202265 = product of:
          0.4440453 = sum of:
            0.4440453 = weight(_text_:r.r in 6043) [ClassicSimilarity], result of:
              0.4440453 = score(doc=6043,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.2762483 = fieldWeight in 6043, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.125 = fieldNorm(doc=6043)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  16. Yager, R.R.: ¬A hierarchical document retrieval language (2000) 0.11
    0.11101133 = product of:
      0.22202265 = sum of:
        0.22202265 = product of:
          0.4440453 = sum of:
            0.4440453 = weight(_text_:r.r in 6159) [ClassicSimilarity], result of:
              0.4440453 = score(doc=6159,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.2762483 = fieldWeight in 6159, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.125 = fieldNorm(doc=6159)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  17. Freeman, R.R.: Classification in computer-based information systems of the 1970s (1976) 0.10
    0.09713491 = product of:
      0.19426982 = sum of:
        0.19426982 = product of:
          0.38853964 = sum of:
            0.38853964 = weight(_text_:r.r in 1278) [ClassicSimilarity], result of:
              0.38853964 = score(doc=1278,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.1167173 = fieldWeight in 1278, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.109375 = fieldNorm(doc=1278)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  18. Proceedings of first seminar on UDC in a mechanized retrieval system, conducted by R.R. Freeman u. P. Atherton, Copenhagen, 2.-6.9.1968 (1969) 0.10
    0.09713491 = product of:
      0.19426982 = sum of:
        0.19426982 = product of:
          0.38853964 = sum of:
            0.38853964 = weight(_text_:r.r in 1984) [ClassicSimilarity], result of:
              0.38853964 = score(doc=1984,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.1167173 = fieldWeight in 1984, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.109375 = fieldNorm(doc=1984)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  19. Proceedings of second seminar on UDC in a mechanized retrieval system, conducted by R.R. Freeman, Frankfurt, 1.-5.6.1970. (1971) 0.10
    0.09713491 = product of:
      0.19426982 = sum of:
        0.19426982 = product of:
          0.38853964 = sum of:
            0.38853964 = weight(_text_:r.r in 1985) [ClassicSimilarity], result of:
              0.38853964 = score(doc=1985,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.1167173 = fieldWeight in 1985, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.109375 = fieldNorm(doc=1985)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  20. Larson, R.R.: Users look at online catalogs : Pt.2: interacting with online catalogs. Final report for the Council on Library Resources (1983) 0.10
    0.09713491 = product of:
      0.19426982 = sum of:
        0.19426982 = product of:
          0.38853964 = sum of:
            0.38853964 = weight(_text_:r.r in 2424) [ClassicSimilarity], result of:
              0.38853964 = score(doc=2424,freq=2.0), product of:
                0.34793016 = queryWeight, product of:
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.048192773 = queryNorm
                1.1167173 = fieldWeight in 2424, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.2195506 = idf(docFreq=87, maxDocs=44218)
                  0.109375 = fieldNorm(doc=2424)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    

Languages

Types

  • a 3202
  • m 375
  • el 164
  • s 148
  • b 40
  • x 35
  • i 23
  • r 20
  • ? 9
  • n 4
  • p 4
  • d 3
  • u 2
  • z 2
  • au 1
  • h 1
  • More… Less…

Themes

Subjects

Classifications