Search (2 results, page 1 of 1)

  • × author_ss:"Koch, T."
  • × theme_ss:"Informationsmittel"
  1. Koch, T.: Quality-controlled subject gateways : definitions, typologies, empirical overview (2000) 0.03 
    0.02822417 = product of:
  0.042336255 = sum of:
    0.01867095 = weight(_text_:on in 631) [ClassicSimilarity], result of:
      0.01867095 = score(doc=631,freq=2.0), product of:
        0.109763056 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.04990557 = queryNorm
        0.17010231 = fieldWeight in 631, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.0546875 = fieldNorm(doc=631)
    0.023665305 = product of:
      0.04733061 = sum of:
        0.04733061 = weight(_text_:22 in 631) [ClassicSimilarity], result of:
          0.04733061 = score(doc=631,freq=2.0), product of:
            0.1747608 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04990557 = queryNorm
            0.2708308 = fieldWeight in 631, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=631)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)
    Abstract
    'Quality-controlled subject gateways' are Internet services which apply a rich set of quality measures to support systematic resource discovery. Considerable manual effort is used to secure a selection of resources which meet quality criteria and to display a rich description of these resources with standards-based metadata. Regular checking and updating ensure good collection management. A main goal is to provide a high quality of subject access through indexing resources using controlled vocabularies and by offering a deep classification structure for advanced searching and browsing. This article provides an initial empirical overview of existing services of this kind, their approaches and technologies, based on proposed working definitions and typologies of subject gateways
    Date
    22. 6.2002 19:37:55
  2. Ardö, A.; Godby, J.; Houghton, A.; Koch, T.; Reighart, R.; Thompson, R.; Vizine-Goetz, D.: Browsing engineering resources on the Web : a general knowledge organization scheme (Dewey) vs. a special scheme (EI) (2000) 0.01 
    0.0075442037 = product of:
  0.02263261 = sum of:
    0.02263261 = weight(_text_:on in 86) [ClassicSimilarity], result of:
      0.02263261 = score(doc=86,freq=4.0), product of:
        0.109763056 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.04990557 = queryNorm
        0.20619515 = fieldWeight in 86, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.046875 = fieldNorm(doc=86)
  0.33333334 = coord(1/3)
    Abstract
    Under the auspices of the Desire II project, researchers at NetLab and OCLC are providing searching and browsing of a test collection of engineering documents on the Web. The goal of the project is to explore simple methods of automatic classification to provide subject browsing of a robot-generated engineering index. At NetLab the documents are automatically classified and organized using an engineering-specific scheme, the Engineering Index (Ei) Thesaurus and Classification; at OCLC the Dewey Decimal Classification (DDC), a general knowledge organization scheme, is being used

Authors

Themes