Search (4 results, page 1 of 1)

  • × author_ss:"Järvelin, K."
  • × year_i:[1990 TO 2000}
  1. Järvelin, K.; Vakkari, P.: ¬The evolution of library and information science 1965-1985 : a content analysis of journal titles (1993) 0.03
    0.02703251 = product of:
      0.06758127 = sum of:
        0.012229082 = weight(_text_:e in 4649) [ClassicSimilarity], result of:
          0.012229082 = score(doc=4649,freq=2.0), product of:
            0.055003747 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03826694 = queryNorm
            0.2223318 = fieldWeight in 4649, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.109375 = fieldNorm(doc=4649)
        0.05535219 = product of:
          0.16605656 = sum of:
            0.16605656 = weight(_text_:evolution in 4649) [ClassicSimilarity], result of:
              0.16605656 = score(doc=4649,freq=2.0), product of:
                0.2026858 = queryWeight, product of:
                  5.29663 = idf(docFreq=601, maxDocs=44218)
                  0.03826694 = queryNorm
                0.8192806 = fieldWeight in 4649, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.29663 = idf(docFreq=601, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4649)
          0.33333334 = coord(1/3)
      0.4 = coord(2/5)
    
    Language
    e
  2. Järvelin, K.; Kristensen, J.; Niemi, T.; Sormunen, E.; Keskustalo, H.: ¬A deductive data model for query expansion (1996) 0.01
    0.009186348 = product of:
      0.022965869 = sum of:
        0.0074119437 = weight(_text_:e in 2230) [ClassicSimilarity], result of:
          0.0074119437 = score(doc=2230,freq=4.0), product of:
            0.055003747 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03826694 = queryNorm
            0.13475344 = fieldWeight in 2230, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.046875 = fieldNorm(doc=2230)
        0.015553925 = product of:
          0.03110785 = sum of:
            0.03110785 = weight(_text_:22 in 2230) [ClassicSimilarity], result of:
              0.03110785 = score(doc=2230,freq=2.0), product of:
                0.1340043 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03826694 = 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)
      0.4 = coord(2/5)
    
    Language
    e
    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
  3. Kristensen, J.; Järvelin, K.: ¬The effectiveness of a searching thesaurus in free-text searching in a full-text database (1990) 0.00
    0.002795219 = product of:
      0.013976094 = sum of:
        0.013976094 = weight(_text_:e in 2043) [ClassicSimilarity], result of:
          0.013976094 = score(doc=2043,freq=2.0), product of:
            0.055003747 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03826694 = queryNorm
            0.2540935 = fieldWeight in 2043, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.125 = fieldNorm(doc=2043)
      0.2 = coord(1/5)
    
    Language
    e
  4. Järvelin, K.; Niemi, T.: Deductive information retrieval based on classifications (1993) 0.00
    0.0010482072 = product of:
      0.0052410355 = sum of:
        0.0052410355 = weight(_text_:e in 2229) [ClassicSimilarity], result of:
          0.0052410355 = score(doc=2229,freq=2.0), product of:
            0.055003747 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03826694 = queryNorm
            0.09528506 = fieldWeight in 2229, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.046875 = fieldNorm(doc=2229)
      0.2 = coord(1/5)
    
    Language
    e