Search (2 results, page 1 of 1)

  • × author_ss:"Smeaton, A.F."
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02 
    0.022167925 = product of:
  0.05541981 = sum of:
    0.015800884 = weight(_text_:of in 2134) [ClassicSimilarity], result of:
      0.015800884 = score(doc=2134,freq=2.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.24188137 = fieldWeight in 2134, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.109375 = fieldNorm(doc=2134)
    0.039618924 = product of:
      0.07923785 = sum of:
        0.07923785 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
          0.07923785 = score(doc=2134,freq=2.0), product of:
            0.14628662 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04177434 = 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)
  0.4 = coord(2/5)
    Date
    30. 3.2001 13:32:22
  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 
    0.0031922606 = product of:
  0.015961302 = sum of:
    0.015961302 = weight(_text_:of in 7000) [ClassicSimilarity], result of:
      0.015961302 = score(doc=7000,freq=4.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.24433708 = fieldWeight in 7000, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.078125 = fieldNorm(doc=7000)
  0.2 = coord(1/5)
    Imprint
    Gaithersburgh, MD : National Institute of Standards and Technology

Authors

Years

Themes