Search (6 results, page 1 of 1)

  • × year_i:[1980 TO 1990}
  • × theme_ss:"Retrievalalgorithmen"
  1. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.02
    0.02334084 = product of:
      0.04668168 = sum of:
        0.04668168 = product of:
          0.09336336 = sum of:
            0.09336336 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
              0.09336336 = score(doc=402,freq=2.0), product of:
                0.15081914 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04306867 = queryNorm
                0.61904186 = fieldWeight in 402, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.125 = fieldNorm(doc=402)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 22(1986) no.6, S.465-476
  2. Rada, R.; Bicknell, E.: Ranking documents with a thesaurus (1989) 0.02
    0.020856924 = product of:
      0.04171385 = sum of:
        0.04171385 = product of:
          0.0834277 = sum of:
            0.0834277 = weight(_text_:r in 6908) [ClassicSimilarity], result of:
              0.0834277 = score(doc=6908,freq=2.0), product of:
                0.14256842 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04306867 = queryNorm
                0.5851765 = fieldWeight in 6908, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.125 = fieldNorm(doc=6908)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  3. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02
    0.020423235 = product of:
      0.04084647 = sum of:
        0.04084647 = product of:
          0.08169294 = sum of:
            0.08169294 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.08169294 = score(doc=2134,freq=2.0), product of:
                0.15081914 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04306867 = queryNorm
                0.5416616 = fieldWeight in 2134, 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=2134)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    30. 3.2001 13:32:22
  4. Perry, R.; Willett, P.: ¬A revies of the use of inverted files for best match searching in information retrieval systems (1983) 0.02
    0.018249808 = product of:
      0.036499616 = sum of:
        0.036499616 = product of:
          0.07299923 = sum of:
            0.07299923 = weight(_text_:r in 2701) [ClassicSimilarity], result of:
              0.07299923 = score(doc=2701,freq=2.0), product of:
                0.14256842 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04306867 = queryNorm
                0.51202947 = fieldWeight in 2701, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.109375 = fieldNorm(doc=2701)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  5. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.02
    0.017505629 = product of:
      0.035011258 = sum of:
        0.035011258 = product of:
          0.070022516 = sum of:
            0.070022516 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
              0.070022516 = score(doc=58,freq=2.0), product of:
                0.15081914 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04306867 = queryNorm
                0.46428138 = fieldWeight in 58, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=58)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    14. 6.2015 22:12:44
  6. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.02
    0.017505629 = product of:
      0.035011258 = sum of:
        0.035011258 = product of:
          0.070022516 = sum of:
            0.070022516 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
              0.070022516 = score(doc=2051,freq=2.0), product of:
                0.15081914 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04306867 = queryNorm
                0.46428138 = fieldWeight in 2051, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=2051)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    14. 6.2015 22:12:56