Search (2 results, page 1 of 1)

Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02

0.017965218 = product of:
  0.053895652 = sum of:
    0.012493922 = weight(_text_:in in 2134) [ClassicSimilarity], result of:
      0.012493922 = score(doc=2134,freq=2.0), product of:
        0.059380736 = queryWeight, product of:
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.043654136 = queryNorm
        0.21040362 = fieldWeight in 2134, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.109375 = fieldNorm(doc=2134)
    0.04140173 = product of:
      0.08280346 = sum of:
        0.08280346 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
          0.08280346 = score(doc=2134,freq=2.0), product of:
            0.15286934 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.043654136 = 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)
  0.33333334 = coord(2/6)

Date: 30. 3.2001 13:32:22
Theme: Semantisches Umfeld in Indexierung u. Retrieval

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

0.0014873719 = product of:
  0.008924231 = sum of:
    0.008924231 = weight(_text_:in in 7000) [ClassicSimilarity], result of:
      0.008924231 = score(doc=7000,freq=2.0), product of:
        0.059380736 = queryWeight, product of:
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.043654136 = queryNorm
        0.15028831 = fieldWeight in 7000, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.078125 = fieldNorm(doc=7000)
  0.16666667 = coord(1/6)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Search (2 results, page 1 of 1)

Authors

Years

Themes