Search (11 results, page 1 of 1)

  • × year_i:[1990 TO 2000}
  • × author_ss:"Walker, S."
  1. Walker, S.; Hancock-Beaulieu, M.: OKAPI at city : an evaluation facility for interactive IR (1991) 0.00
    0.0042019994 = product of:
      0.008403999 = sum of:
        0.008403999 = product of:
          0.016807998 = sum of:
            0.016807998 = weight(_text_:e in 2702) [ClassicSimilarity], result of:
              0.016807998 = score(doc=2702,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  2. Walker, S.: OCLC WorldCat collection sets (1998) 0.00
    0.0042019994 = product of:
      0.008403999 = sum of:
        0.008403999 = product of:
          0.016807998 = sum of:
            0.016807998 = weight(_text_:e in 5891) [ClassicSimilarity], result of:
              0.016807998 = score(doc=5891,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.2540935 = fieldWeight in 5891, 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=5891)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  3. Robertson, S.E.; Walker, S.; Beaulieu, M.M.; Gatford, M.; Payne, A.: Okapi at TREC-4 (1996) 0.00
    0.0031514994 = product of:
      0.006302999 = sum of:
        0.006302999 = product of:
          0.012605998 = sum of:
            0.012605998 = weight(_text_:e in 7546) [ClassicSimilarity], result of:
              0.012605998 = score(doc=7546,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.19057012 = fieldWeight in 7546, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.09375 = fieldNorm(doc=7546)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  4. Beaulieu, M.M.; Gatford, M.; Huang, X.; Robertson, S.E.; Walker, S.; Williams, P.: Okapi an TREC-5 (1997) 0.00
    0.0031514994 = product of:
      0.006302999 = sum of:
        0.006302999 = product of:
          0.012605998 = sum of:
            0.012605998 = weight(_text_:e in 3097) [ClassicSimilarity], result of:
              0.012605998 = score(doc=3097,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.19057012 = fieldWeight in 3097, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.09375 = fieldNorm(doc=3097)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  5. Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990) 0.00
    0.0026262498 = product of:
      0.0052524996 = sum of:
        0.0052524996 = product of:
          0.010504999 = sum of:
            0.010504999 = weight(_text_:e in 1816) [ClassicSimilarity], result of:
              0.010504999 = score(doc=1816,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  6. Walker, S.: Subject access in online catalogues (1991) 0.00
    0.0021009997 = product of:
      0.0042019994 = sum of:
        0.0042019994 = product of:
          0.008403999 = sum of:
            0.008403999 = weight(_text_:e in 5690) [ClassicSimilarity], result of:
              0.008403999 = score(doc=5690,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.12704675 = fieldWeight in 5690, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5690)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  7. Walker, S.: Views on classification as a search tool on a computer (1991) 0.00
    0.0018383748 = product of:
      0.0036767495 = sum of:
        0.0036767495 = product of:
          0.007353499 = sum of:
            0.007353499 = weight(_text_:e in 4837) [ClassicSimilarity], result of:
              0.007353499 = score(doc=4837,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.1111659 = fieldWeight in 4837, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4837)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  8. Jones, S.; Gatford, M.; Robertson, S.; Hancock-Beaulieu, M.; Secker, J.; Walker, S.: Interactive thesaurus navigation : intelligence rules OK? (1995) 0.00
    0.0018383748 = product of:
      0.0036767495 = sum of:
        0.0036767495 = product of:
          0.007353499 = sum of:
            0.007353499 = weight(_text_:e in 180) [ClassicSimilarity], result of:
              0.007353499 = score(doc=180,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.1111659 = fieldWeight in 180, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=180)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  9. Robertson, S.E.; Walker, S.; Beaulieu, M.: Laboratory experiments with Okapi : participation in the TREC programme (1997) 0.00
    0.0018383748 = product of:
      0.0036767495 = sum of:
        0.0036767495 = product of:
          0.007353499 = sum of:
            0.007353499 = weight(_text_:e in 2216) [ClassicSimilarity], result of:
              0.007353499 = score(doc=2216,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.1111659 = fieldWeight in 2216, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2216)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  10. Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995) 0.00
    0.0018383748 = product of:
      0.0036767495 = sum of:
        0.0036767495 = product of:
          0.007353499 = sum of:
            0.007353499 = weight(_text_:e in 6964) [ClassicSimilarity], result of:
              0.007353499 = score(doc=6964,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.1111659 = fieldWeight in 6964, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=6964)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  11. Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992) 0.00
    0.0018383748 = product of:
      0.0036767495 = sum of:
        0.0036767495 = product of:
          0.007353499 = sum of:
            0.007353499 = weight(_text_:e in 2731) [ClassicSimilarity], result of:
              0.007353499 = score(doc=2731,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.1111659 = fieldWeight in 2731, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2731)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e