Search (4 results, page 1 of 1)

  • × theme_ss:"Retrievalalgorithmen"
  • × year_i:[1980 TO 1990}
  1. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.09
    0.093050346 = product of:
      0.24813426 = sum of:
        0.025447309 = weight(_text_:und in 2051) [ClassicSimilarity], result of:
          0.025447309 = score(doc=2051,freq=2.0), product of:
            0.08659921 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.039072596 = queryNorm
            0.29385152 = fieldWeight in 2051, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.09375 = fieldNorm(doc=2051)
        0.036555205 = weight(_text_:der in 2051) [ClassicSimilarity], result of:
          0.036555205 = score(doc=2051,freq=4.0), product of:
            0.08727907 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.039072596 = queryNorm
            0.4188313 = fieldWeight in 2051, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.09375 = fieldNorm(doc=2051)
        0.18613175 = sum of:
          0.12260618 = weight(_text_:forschung in 2051) [ClassicSimilarity], result of:
            0.12260618 = score(doc=2051,freq=2.0), product of:
              0.19008557 = queryWeight, product of:
                4.8649335 = idf(docFreq=926, maxDocs=44218)
                0.039072596 = queryNorm
              0.64500517 = fieldWeight in 2051, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.8649335 = idf(docFreq=926, maxDocs=44218)
                0.09375 = fieldNorm(doc=2051)
          0.063525565 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
            0.063525565 = score(doc=2051,freq=2.0), product of:
              0.13682558 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.039072596 = 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)
      0.375 = coord(3/8)
    
    Abstract
    Der Beitrag enthält eine Darstellung zur Frage der Konzeption von Rankingalgorithmen auf Grundlage gewichteter Indexierung mittels statistischer Verfahren.
    Date
    14. 6.2015 22:12:56
    Source
    Automatische Indexierung zwischen Forschung und Anwendung, Hrsg.: G. Lustig
  2. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.01
    0.0052937972 = product of:
      0.042350378 = sum of:
        0.042350378 = product of:
          0.084700756 = sum of:
            0.084700756 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
              0.084700756 = score(doc=402,freq=2.0), product of:
                0.13682558 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.039072596 = 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)
      0.125 = coord(1/8)
    
    Source
    Information processing and management. 22(1986) no.6, S.465-476
  3. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.00
    0.0046320725 = product of:
      0.03705658 = sum of:
        0.03705658 = product of:
          0.07411316 = sum of:
            0.07411316 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.07411316 = score(doc=2134,freq=2.0), product of:
                0.13682558 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.039072596 = 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)
      0.125 = coord(1/8)
    
    Date
    30. 3.2001 13:32:22
  4. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.00
    0.003970348 = product of:
      0.031762782 = sum of:
        0.031762782 = product of:
          0.063525565 = sum of:
            0.063525565 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
              0.063525565 = score(doc=58,freq=2.0), product of:
                0.13682558 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.039072596 = 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)
      0.125 = coord(1/8)
    
    Date
    14. 6.2015 22:12:44