Search (4 results, page 1 of 1)

  • × author_ss:"Järvelin, K."
  • × year_i:[1990 TO 2000}
  1. Järvelin, K.; Kristensen, J.; Niemi, T.; Sormunen, E.; Keskustalo, H.: ¬A deductive data model for query expansion (1996) 0.02
    0.023643933 = product of:
      0.047287866 = sum of:
        0.047287866 = sum of:
          0.0041575856 = weight(_text_:s in 2230) [ClassicSimilarity], result of:
            0.0041575856 = score(doc=2230,freq=2.0), product of:
              0.057684682 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.053056188 = queryNorm
              0.072074346 = fieldWeight in 2230, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=2230)
          0.043130282 = weight(_text_:22 in 2230) [ClassicSimilarity], result of:
            0.043130282 = score(doc=2230,freq=2.0), product of:
              0.18579373 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.053056188 = queryNorm
              0.23214069 = fieldWeight in 2230, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046875 = fieldNorm(doc=2230)
      0.5 = coord(1/2)
    
    Pages
    S.235-243
    Source
    Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (ACM SIGIR '96), Zürich, Switzerland, August 18-22, 1996. Eds.: H.P. Frei et al
  2. Kristensen, J.; Järvelin, K.: ¬The effectiveness of a searching thesaurus in free-text searching in a full-text database (1990) 0.00
    0.002771724 = product of:
      0.005543448 = sum of:
        0.005543448 = product of:
          0.011086896 = sum of:
            0.011086896 = weight(_text_:s in 2043) [ClassicSimilarity], result of:
              0.011086896 = score(doc=2043,freq=2.0), product of:
                0.057684682 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.053056188 = queryNorm
                0.19219826 = fieldWeight in 2043, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.125 = fieldNorm(doc=2043)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    International classification. 17(1990), S.77-84
  3. Järvelin, K.; Vakkari, P.: ¬The evolution of library and information science 1965-1985 : a content analysis of journal titles (1993) 0.00
    0.0024252585 = product of:
      0.004850517 = sum of:
        0.004850517 = product of:
          0.009701034 = sum of:
            0.009701034 = weight(_text_:s in 4649) [ClassicSimilarity], result of:
              0.009701034 = score(doc=4649,freq=2.0), product of:
                0.057684682 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.053056188 = queryNorm
                0.16817348 = fieldWeight in 4649, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4649)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 29(1993) no.1, S.129-144
  4. Järvelin, K.; Niemi, T.: Deductive information retrieval based on classifications (1993) 0.00
    0.0010393964 = product of:
      0.0020787928 = sum of:
        0.0020787928 = product of:
          0.0041575856 = sum of:
            0.0041575856 = weight(_text_:s in 2229) [ClassicSimilarity], result of:
              0.0041575856 = score(doc=2229,freq=2.0), product of:
                0.057684682 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.053056188 = queryNorm
                0.072074346 = fieldWeight in 2229, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2229)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science. 44(1993) no.10, S.557-578