Search (3 results, page 1 of 1)

  • × theme_ss:"Retrievalstudien"
  • × year_i:[1960 TO 1970}
  1. Salton, G.; Lesk, M.E.: Computer evaluation of indexing and text processing (1968) 0.02
    0.021249607 = product of:
      0.042499214 = sum of:
        0.042499214 = product of:
          0.08499843 = sum of:
            0.08499843 = weight(_text_:g in 77) [ClassicSimilarity], result of:
              0.08499843 = score(doc=77,freq=2.0), product of:
                0.17068884 = queryWeight, product of:
                  3.7559474 = idf(docFreq=2809, maxDocs=44218)
                  0.04544495 = queryNorm
                0.49797297 = fieldWeight in 77, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7559474 = idf(docFreq=2809, maxDocs=44218)
                  0.09375 = fieldNorm(doc=77)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  2. Lesk, M.E.; Salton, G.: Relevance assements and retrieval system evaluation (1969) 0.01
    0.0123956045 = product of:
      0.024791209 = sum of:
        0.024791209 = product of:
          0.049582418 = sum of:
            0.049582418 = weight(_text_:g in 4151) [ClassicSimilarity], result of:
              0.049582418 = score(doc=4151,freq=2.0), product of:
                0.17068884 = queryWeight, product of:
                  3.7559474 = idf(docFreq=2809, maxDocs=44218)
                  0.04544495 = queryNorm
                0.29048425 = fieldWeight in 4151, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7559474 = idf(docFreq=2809, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4151)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  3. Blagden, J.F.: How much noise in a role-free and link-free co-ordinate indexing system? (1966) 0.01
    0.010775035 = product of:
      0.02155007 = sum of:
        0.02155007 = product of:
          0.04310014 = sum of:
            0.04310014 = weight(_text_:22 in 2718) [ClassicSimilarity], result of:
              0.04310014 = score(doc=2718,freq=2.0), product of:
                0.15914047 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04544495 = queryNorm
                0.2708308 = fieldWeight in 2718, 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=2718)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of documentation. 22(1966), S.203-209