Search (6 results, page 1 of 1)

  • × theme_ss:"Retrievalalgorithmen"
  • × year_i:[1980 TO 1990}
  1. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.04
    0.036842998 = product of:
      0.073685996 = sum of:
        0.073685996 = product of:
          0.11052899 = sum of:
            0.0370072 = weight(_text_:h in 58) [ClassicSimilarity], result of:
              0.0370072 = score(doc=58,freq=2.0), product of:
                0.11234917 = queryWeight, product of:
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.045220956 = queryNorm
                0.32939452 = fieldWeight in 58, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.09375 = fieldNorm(doc=58)
            0.073521785 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
              0.073521785 = score(doc=58,freq=2.0), product of:
                0.15835609 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045220956 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    14. 6.2015 22:12:44
    Source
    Deutscher Dokumentartag 1985, Nürnberg, 1.-4.10.1985: Fachinformation: Methodik - Management - Markt; neue Entwicklungen, Berufe, Produkte. Bearb.: H. Strohl-Goebel
  2. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.02
    0.016338175 = product of:
      0.03267635 = sum of:
        0.03267635 = product of:
          0.09802905 = sum of:
            0.09802905 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
              0.09802905 = score(doc=402,freq=2.0), product of:
                0.15835609 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045220956 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    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) 0.01
    0.014295902 = product of:
      0.028591804 = sum of:
        0.028591804 = product of:
          0.08577541 = sum of:
            0.08577541 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.08577541 = score(doc=2134,freq=2.0), product of:
                0.15835609 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045220956 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    30. 3.2001 13:32:22
  4. Salton, G.; Buckley, C.: Term-weighting approaches in automatic text retrieval (1988) 0.01
    0.012733776 = product of:
      0.025467552 = sum of:
        0.025467552 = product of:
          0.07640266 = sum of:
            0.07640266 = weight(_text_:k in 1938) [ClassicSimilarity], result of:
              0.07640266 = score(doc=1938,freq=2.0), product of:
                0.16142878 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.045220956 = queryNorm
                0.47329018 = fieldWeight in 1938, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1938)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.323-328.
  5. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.01
    0.012253631 = product of:
      0.024507262 = sum of:
        0.024507262 = product of:
          0.073521785 = sum of:
            0.073521785 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
              0.073521785 = score(doc=2051,freq=2.0), product of:
                0.15835609 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045220956 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    14. 6.2015 22:12:56
  6. Wu, H.; Salton, G.: ¬The estimation of term relevance weights using relevance feedback (1981) 0.01
    0.008223822 = product of:
      0.016447645 = sum of:
        0.016447645 = product of:
          0.049342934 = sum of:
            0.049342934 = weight(_text_:h in 4728) [ClassicSimilarity], result of:
              0.049342934 = score(doc=4728,freq=2.0), product of:
                0.11234917 = queryWeight, product of:
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.045220956 = queryNorm
                0.4391927 = fieldWeight in 4728, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.125 = fieldNorm(doc=4728)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)