Search (6 results, page 1 of 1)

  • × year_i:[1980 TO 1990}
  • × theme_ss:"Retrievalalgorithmen"
  1. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.00
    0.0030007032 = product of:
      0.034508087 = sum of:
        0.015349354 = weight(_text_:und in 2051) [ClassicSimilarity], result of:
          0.015349354 = score(doc=2051,freq=2.0), product of:
            0.052235067 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.023567878 = 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)
        0.019158732 = product of:
          0.038317464 = sum of:
            0.038317464 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
              0.038317464 = score(doc=2051,freq=2.0), product of:
                0.08253069 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.023567878 = 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)
      0.08695652 = coord(2/23)
    
    Date
    14. 6.2015 22:12:56
    Source
    Automatische Indexierung zwischen Forschung und Anwendung, Hrsg.: G. Lustig
  2. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.00
    0.002485787 = product of:
      0.028586552 = sum of:
        0.0094278185 = product of:
          0.018855637 = sum of:
            0.018855637 = weight(_text_:1 in 58) [ClassicSimilarity], result of:
              0.018855637 = score(doc=58,freq=2.0), product of:
                0.057894554 = queryWeight, product of:
                  2.4565027 = idf(docFreq=10304, maxDocs=44218)
                  0.023567878 = queryNorm
                0.32568932 = fieldWeight in 58, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4565027 = idf(docFreq=10304, maxDocs=44218)
                  0.09375 = fieldNorm(doc=58)
          0.5 = coord(1/2)
        0.019158732 = product of:
          0.038317464 = sum of:
            0.038317464 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
              0.038317464 = score(doc=58,freq=2.0), product of:
                0.08253069 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.023567878 = 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)
      0.08695652 = coord(2/23)
    
    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
  3. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.00
    0.0011106512 = product of:
      0.025544977 = sum of:
        0.025544977 = product of:
          0.051089954 = sum of:
            0.051089954 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
              0.051089954 = score(doc=402,freq=2.0), product of:
                0.08253069 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.023567878 = 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)
      0.04347826 = coord(1/23)
    
    Source
    Information processing and management. 22(1986) no.6, S.465-476
  4. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.00
    9.7181974E-4 = product of:
      0.022351854 = sum of:
        0.022351854 = product of:
          0.044703707 = sum of:
            0.044703707 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.044703707 = score(doc=2134,freq=2.0), product of:
                0.08253069 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.023567878 = 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)
      0.04347826 = coord(1/23)
    
    Date
    30. 3.2001 13:32:22
  5. Bovey, J.D.; Robertson, S.E.: ¬An algorithm for weighted searching on a Boolean system (1984) 0.00
    4.782227E-4 = product of:
      0.010999122 = sum of:
        0.010999122 = product of:
          0.021998243 = sum of:
            0.021998243 = weight(_text_:1 in 788) [ClassicSimilarity], result of:
              0.021998243 = score(doc=788,freq=2.0), product of:
                0.057894554 = queryWeight, product of:
                  2.4565027 = idf(docFreq=10304, maxDocs=44218)
                  0.023567878 = queryNorm
                0.37997085 = fieldWeight in 788, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4565027 = idf(docFreq=10304, maxDocs=44218)
                  0.109375 = fieldNorm(doc=788)
          0.5 = coord(1/2)
      0.04347826 = coord(1/23)
    
    Source
    Information technology: research and development. 3(1984) no.1, S.84-87
  6. Ro, J.S.: ¬An evaluation of the applicability of ranking algorithms to improve the effectiveness of full-text retrieval : 1. On the effectiveness of full-text retrieval (1988) 0.00
    4.0990516E-4 = product of:
      0.0094278185 = sum of:
        0.0094278185 = product of:
          0.018855637 = sum of:
            0.018855637 = weight(_text_:1 in 4030) [ClassicSimilarity], result of:
              0.018855637 = score(doc=4030,freq=2.0), product of:
                0.057894554 = queryWeight, product of:
                  2.4565027 = idf(docFreq=10304, maxDocs=44218)
                  0.023567878 = queryNorm
                0.32568932 = fieldWeight in 4030, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4565027 = idf(docFreq=10304, maxDocs=44218)
                  0.09375 = fieldNorm(doc=4030)
          0.5 = coord(1/2)
      0.04347826 = coord(1/23)