Search (3 results, page 1 of 1)

  • × classification_ss:"025.4/9 / dc19"
  1. Cochrane, P.A.: Improving LCSH for use in online catalogs : exercises for self-help with a selection of background readings (1986) 0.05
    0.04985518 = product of:
      0.14956553 = sum of:
        0.14956553 = weight(_text_:p.a in 4218) [ClassicSimilarity], result of:
          0.14956553 = score(doc=4218,freq=2.0), product of:
            0.2886521 = queryWeight, product of:
              6.699675 = idf(docFreq=147, maxDocs=44218)
              0.04308449 = queryNorm
            0.5181516 = fieldWeight in 4218, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.699675 = idf(docFreq=147, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4218)
      0.33333334 = coord(1/3)
    
  2. Unesco thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social science, culture and communication (1977) 0.02
    0.021300618 = product of:
      0.06390185 = sum of:
        0.06390185 = product of:
          0.1278037 = sum of:
            0.1278037 = weight(_text_:v in 6424) [ClassicSimilarity], result of:
              0.1278037 = score(doc=6424,freq=4.0), product of:
                0.20988296 = queryWeight, product of:
                  4.871427 = idf(docFreq=920, maxDocs=44218)
                  0.04308449 = queryNorm
                0.6089284 = fieldWeight in 6424, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  4.871427 = idf(docFreq=920, maxDocs=44218)
                  0.0625 = fieldNorm(doc=6424)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Content
    v. 1. Introduction, classified thesaurus, permuted index, hierarchical display.--v. 2. Alphabetical thesaurus.
  3. Lancaster, F.W.: Vocabulary control for information retrieval (1986) 0.01
    0.007783138 = product of:
      0.023349414 = sum of:
        0.023349414 = product of:
          0.046698827 = sum of:
            0.046698827 = weight(_text_:22 in 217) [ClassicSimilarity], result of:
              0.046698827 = score(doc=217,freq=2.0), product of:
                0.15087454 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04308449 = queryNorm
                0.30952093 = fieldWeight in 217, 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=217)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    22. 4.2007 10:07:51