Search (3 results, page 1 of 1)

  • × author_ss:"Walker, S."
  • × type_ss:"r"
  1. Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990) 0.02 
    0.01551668 = product of:
  0.04655004 = sum of:
    0.007520625 = weight(_text_:e in 1816) [ClassicSimilarity], result of:
      0.007520625 = score(doc=1816,freq=2.0), product of:
        0.047356583 = queryWeight, product of:
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.03294669 = queryNorm
        0.15880844 = fieldWeight in 1816, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.078125 = fieldNorm(doc=1816)
    0.039029416 = weight(_text_:u in 1816) [ClassicSimilarity], result of:
      0.039029416 = score(doc=1816,freq=2.0), product of:
        0.107882105 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03294669 = queryNorm
        0.3617784 = fieldWeight in 1816, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=1816)
  0.33333334 = coord(2/6)
    Language
    e
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  2. Walker, S.; Hancock-Beaulieu, M.: OKAPI at city : an evaluation facility for interactive IR (1991) 0.00 
    0.0020055 = product of:
  0.012033 = sum of:
    0.012033 = weight(_text_:e in 2702) [ClassicSimilarity], result of:
      0.012033 = score(doc=2702,freq=2.0), product of:
        0.047356583 = queryWeight, product of:
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.03294669 = queryNorm
        0.2540935 = fieldWeight in 2702, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.125 = fieldNorm(doc=2702)
  0.16666667 = coord(1/6)
    Language
    e
  3. Walker, S.; Jones, R.M.: Improving subject retrieval in online catalogues : T.1: Stemming, automatic spelling correction and cross-reference tables (1987) 0.00 
    0.0017548124 = product of:
  0.010528875 = sum of:
    0.010528875 = weight(_text_:e in 2141) [ClassicSimilarity], result of:
      0.010528875 = score(doc=2141,freq=2.0), product of:
        0.047356583 = queryWeight, product of:
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.03294669 = queryNorm
        0.2223318 = fieldWeight in 2141, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.109375 = fieldNorm(doc=2141)
  0.16666667 = coord(1/6)
    Language
    e

Authors

Years

Themes