Search (24 results, page 2 of 2)

  • × language_ss:"e"
  • × theme_ss:"Beziehungen verbale / systematische Erschließung"
  • × type_ss:"a"
  1. Fugmann, R.: ¬An interactive classaurus on the PC (1990) 0.00
    0.0025028288 = product of:
      0.0075084865 = sum of:
        0.0075084865 = weight(_text_:a in 2222) [ClassicSimilarity], result of:
          0.0075084865 = score(doc=2222,freq=4.0), product of:
            0.05209492 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.045180224 = queryNorm
            0.14413087 = fieldWeight in 2222, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0625 = fieldNorm(doc=2222)
      0.33333334 = coord(1/3)
    
    Abstract
    Both classification systems and thesauri have their specific strengths and weaknesses. Through properly combining both approaches one can eliminate the latter and largely preserve the strenghts. 'Classauri' which originate in this well-known way are most effective if they are constructed and applied during computer-aided indexing. A special variety of classaurus is described which is characterized by the employment of simple bur highly effective conceptual and technical devices and by the renunciation of attempts to generate the wording of index entries algorithmically
    Type
    a
  2. Tudhope, D.; Binding, C.; Blocks, D.; Cunliffe, D.: Compound descriptors in context : a matching function for classifications and thesauri (2002) 0.00
    0.002473325 = product of:
      0.0074199745 = sum of:
        0.0074199745 = weight(_text_:a in 3179) [ClassicSimilarity], result of:
          0.0074199745 = score(doc=3179,freq=10.0), product of:
            0.05209492 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.045180224 = queryNorm
            0.14243183 = fieldWeight in 3179, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3179)
      0.33333334 = coord(1/3)
    
    Abstract
    There are many advantages for Digital Libraries in indexing with classifications or thesauri, but some current disincentive in the lack of flexible retrieval tools that deal with compound descriptors. This paper discusses a matching function for compound descriptors, or multi-concept subject headings, that does not rely an exact matching but incorporates term expansion via thesaurus semantic relationships to produce ranked results that take account of missing and partially matching terms. The matching function is based an a measure of semantic closeness between terms, which has the potential to help with recall problems. The work reported is part of the ongoing FACET project in collaboration with the National Museum of Science and Industry and its collections database. The architecture of the prototype system and its Interface are outlined. The matching problem for compound descriptors is reviewed and the FACET implementation described. Results are discussed from scenarios using the faceted Getty Art and Architecture Thesaurus. We argue that automatic traversal of thesaurus relationships can augment the user's browsing possibilities. The techniques can be applied both to unstructured multi-concept subject headings and potentially to more syntactically structured strings. The notion of a focus term is used by the matching function to model AAT modified descriptors (noun phrases). The relevance of the approach to precoordinated indexing and matching faceted strings is discussed.
    Type
    a
  3. Green, R.: Making visible hidden relationships in the Dewey Decimal Classification : how relative index terms relate to DDC classes (2008) 0.00
    0.0015485462 = product of:
      0.0046456386 = sum of:
        0.0046456386 = weight(_text_:a in 2236) [ClassicSimilarity], result of:
          0.0046456386 = score(doc=2236,freq=2.0), product of:
            0.05209492 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.045180224 = queryNorm
            0.089176424 = fieldWeight in 2236, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2236)
      0.33333334 = coord(1/3)
    
    Type
    a
  4. Bee, G.: CrissCross (2006) 0.00
    7.742731E-4 = product of:
      0.0023228193 = sum of:
        0.0023228193 = weight(_text_:a in 1275) [ClassicSimilarity], result of:
          0.0023228193 = score(doc=1275,freq=2.0), product of:
            0.05209492 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.045180224 = queryNorm
            0.044588212 = fieldWeight in 1275, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.02734375 = fieldNorm(doc=1275)
      0.33333334 = coord(1/3)
    
    Type
    a