Search (2 results, page 1 of 1)

  • × author_ss:"Smeaton, A.F."
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  • × type_ss:"a"
  1. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.04
    0.037325956 = product of:
      0.05598893 = sum of:
        0.013139851 = weight(_text_:a in 2134) [ClassicSimilarity], result of:
          0.013139851 = score(doc=2134,freq=4.0), product of:
            0.05209492 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.045180224 = queryNorm
            0.25222903 = fieldWeight in 2134, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.109375 = fieldNorm(doc=2134)
        0.04284908 = product of:
          0.08569816 = sum of:
            0.08569816 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.08569816 = score(doc=2134,freq=2.0), product of:
                0.15821345 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045180224 = 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)
      0.6666667 = coord(2/3)
    
    Date
    30. 3.2001 13:32:22
    Type
    a
  2. Smeaton, A.F.; Kelledy, L.; O'Donnell, R.: TREC-4 experiments at Dublin City University : thresholding posting lists, query expansion with WordNet and POS tagging of Spanish (1996) 0.00
    0.002212209 = product of:
      0.0066366266 = sum of:
        0.0066366266 = weight(_text_:a in 7000) [ClassicSimilarity], result of:
          0.0066366266 = score(doc=7000,freq=2.0), product of:
            0.05209492 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.045180224 = queryNorm
            0.12739488 = fieldWeight in 7000, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.078125 = fieldNorm(doc=7000)
      0.33333334 = coord(1/3)
    
    Type
    a