Search (2 results, page 1 of 1)

  • × classification_ss:"025.4/9 / dc19"
  1. Unesco thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social science, culture and communication (1977) 0.04 
    0.04368582 = product of:
  0.13105746 = sum of:
    0.13105746 = weight(_text_:v in 6424) [ClassicSimilarity], result of:
      0.13105746 = score(doc=6424,freq=4.0), product of:
        0.2152264 = queryWeight, product of:
          4.871427 = idf(docFreq=920, maxDocs=44218)
          0.044181384 = 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)
  0.33333334 = coord(1/3)
    Content
    v. 1. Introduction, classified thesaurus, permuted index, hierarchical display.--v. 2. Alphabetical thesaurus.
  2. Lancaster, F.W.: Vocabulary control for information retrieval (1986) 0.01 
    0.007981291 = product of:
  0.023943871 = sum of:
    0.023943871 = product of:
      0.047887743 = sum of:
        0.047887743 = weight(_text_:22 in 217) [ClassicSimilarity], result of:
          0.047887743 = score(doc=217,freq=2.0), product of:
            0.15471569 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044181384 = 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

Years

Themes

Subjects

Classifications