Search (4 results, page 1 of 1)

  • × author_ss:"Rada, R."
  • × year_i:[1980 TO 1990}
  1. McMath, C.; Tamararu, B.; Rada, R.: Graphical interface to thesaurus-based information retrieval system (1988) 0.01 
    0.009170066 = product of:
  0.027510196 = sum of:
    0.027510196 = product of:
      0.08253059 = sum of:
        0.08253059 = weight(_text_:retrieval in 3920) [ClassicSimilarity], result of:
          0.08253059 = score(doc=3920,freq=2.0), product of:
            0.15433937 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051022716 = queryNorm
            0.5347345 = fieldWeight in 3920, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=3920)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
  2. Rada, R.: Knowledge-sparse and knowledge-rich learning in information retrieval (1987) 0.01 
    0.009170066 = product of:
  0.027510196 = sum of:
    0.027510196 = product of:
      0.08253059 = sum of:
        0.08253059 = weight(_text_:retrieval in 5146) [ClassicSimilarity], result of:
          0.08253059 = score(doc=5146,freq=2.0), product of:
            0.15433937 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051022716 = queryNorm
            0.5347345 = fieldWeight in 5146, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=5146)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
  3. McMath, C.F.; Tamaru, R.S.; Rada, R.: ¬A graphical thesaurus-based information retrieval system (1989) 0.01 
    0.008023808 = product of:
  0.024071421 = sum of:
    0.024071421 = product of:
      0.07221426 = sum of:
        0.07221426 = weight(_text_:retrieval in 4819) [ClassicSimilarity], result of:
          0.07221426 = score(doc=4819,freq=2.0), product of:
            0.15433937 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051022716 = queryNorm
            0.46789268 = fieldWeight in 4819, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.109375 = fieldNorm(doc=4819)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
  4. Rada, R.: Connecting and evaluating thesauri : issues and cases (1987) 0.00 
    0.004011904 = product of:
  0.012035711 = sum of:
    0.012035711 = product of:
      0.03610713 = sum of:
        0.03610713 = weight(_text_:retrieval in 823) [ClassicSimilarity], result of:
          0.03610713 = score(doc=823,freq=2.0), product of:
            0.15433937 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051022716 = queryNorm
            0.23394634 = fieldWeight in 823, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0546875 = fieldNorm(doc=823)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Abstract
    Connecting and evaluating thesauri is an important task for the systematic development of better information retrieval systems. Connecting thesauri includes not only determining when terms in different thesauri are the same but also determining what kinds of relationships can be transferred from one thesaurus to another. This paper first presents issues in connecting and evaluating thesauri. Various experiments in connecting a particular thesaurus, the Medical Subject Headings, with other medical thesauri are described. In these experiments, similar terms in two thesauri are recognized and then differences in two thesauri are exploited to create more powerful thesauri. Part of the evaluation requires the thesaurus to support automatic indexing and retrieving of documents

Authors

Themes