Search (7 results, page 1 of 1)

  • × theme_ss:"Retrievalstudien"
  • × year_i:[1980 TO 1990}
  1. Bernstein, L.M.; Williamson, R.E.: Testing of a natural language retrieval system for a full text knowledge base (1984) 0.07
    0.06881474 = product of:
      0.13762948 = sum of:
        0.13762948 = product of:
          0.27525896 = sum of:
            0.27525896 = weight(_text_:l.m in 1803) [ClassicSimilarity], result of:
              0.27525896 = score(doc=1803,freq=2.0), product of:
                0.28067163 = queryWeight, product of:
                  6.340301 = idf(docFreq=211, maxDocs=44218)
                  0.04426787 = queryNorm
                0.9807153 = fieldWeight in 1803, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.340301 = idf(docFreq=211, maxDocs=44218)
                  0.109375 = fieldNorm(doc=1803)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  2. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.02
    0.0209919 = product of:
      0.0419838 = sum of:
        0.0419838 = product of:
          0.0839676 = sum of:
            0.0839676 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
              0.0839676 = score(doc=262,freq=2.0), product of:
                0.15501854 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04426787 = queryNorm
                0.5416616 = fieldWeight in 262, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=262)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    20.10.2000 12:22:23
  3. Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1985) 0.02
    0.019661354 = product of:
      0.039322708 = sum of:
        0.039322708 = product of:
          0.078645416 = sum of:
            0.078645416 = weight(_text_:l.m in 3643) [ClassicSimilarity], result of:
              0.078645416 = score(doc=3643,freq=2.0), product of:
                0.28067163 = queryWeight, product of:
                  6.340301 = idf(docFreq=211, maxDocs=44218)
                  0.04426787 = queryNorm
                0.28020436 = fieldWeight in 3643, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.340301 = idf(docFreq=211, maxDocs=44218)
                  0.03125 = fieldNorm(doc=3643)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Theory of subject analysis: a sourcebook. Ed.: L.M. Chan, et al
  4. Lancaster, F.W.: Evaluating the performance of a large computerized information system (1985) 0.02
    0.019661354 = product of:
      0.039322708 = sum of:
        0.039322708 = product of:
          0.078645416 = sum of:
            0.078645416 = weight(_text_:l.m in 3649) [ClassicSimilarity], result of:
              0.078645416 = score(doc=3649,freq=2.0), product of:
                0.28067163 = queryWeight, product of:
                  6.340301 = idf(docFreq=211, maxDocs=44218)
                  0.04426787 = queryNorm
                0.28020436 = fieldWeight in 3649, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.340301 = idf(docFreq=211, maxDocs=44218)
                  0.03125 = fieldNorm(doc=3649)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Theory of subject analysis: a sourcebook. Ed.: L.M. Chan, et al
  5. Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.01
    0.014994213 = product of:
      0.029988427 = sum of:
        0.029988427 = product of:
          0.059976853 = sum of:
            0.059976853 = weight(_text_:22 in 2417) [ClassicSimilarity], result of:
              0.059976853 = score(doc=2417,freq=2.0), product of:
                0.15501854 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04426787 = queryNorm
                0.38690117 = fieldWeight in 2417, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2417)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Pages
    S.22-25
  6. Hodges, P.R.: Keyword in title indexes : effectiveness of retrieval in computer searches (1983) 0.01
    0.01049595 = product of:
      0.0209919 = sum of:
        0.0209919 = product of:
          0.0419838 = sum of:
            0.0419838 = weight(_text_:22 in 5001) [ClassicSimilarity], result of:
              0.0419838 = score(doc=5001,freq=2.0), product of:
                0.15501854 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04426787 = queryNorm
                0.2708308 = fieldWeight in 5001, 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=5001)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    14. 3.1996 13:22:21
  7. Sievert, M.E.; McKinin, E.J.: Why full-text misses some relevant documents : an analysis of documents not retrieved by CCML or MEDIS (1989) 0.01
    0.008996528 = product of:
      0.017993055 = sum of:
        0.017993055 = product of:
          0.03598611 = sum of:
            0.03598611 = weight(_text_:22 in 3564) [ClassicSimilarity], result of:
              0.03598611 = score(doc=3564,freq=2.0), product of:
                0.15501854 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04426787 = queryNorm
                0.23214069 = fieldWeight in 3564, 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=3564)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    9. 1.1996 10:22:31