Search (2 results, page 1 of 1)

Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990) 0.00

0.0021034614 = product of:
  0.012620768 = sum of:
    0.012620768 = weight(_text_:in in 1816) [ClassicSimilarity], result of:
      0.012620768 = score(doc=1816,freq=4.0), product of:
        0.059380736 = queryWeight, product of:
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.043654136 = queryNorm
        0.21253976 = fieldWeight in 1816, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.078125 = fieldNorm(doc=1816)
  0.16666667 = coord(1/6)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Walker, S.; Jones, R.M.: Improving subject retrieval in online catalogues : T.1: Stemming, automatic spelling correction and cross-reference tables (1987) 0.00

0.0020823204 = product of:
  0.012493922 = sum of:
    0.012493922 = weight(_text_:in in 2141) [ClassicSimilarity], result of:
      0.012493922 = score(doc=2141,freq=2.0), product of:
        0.059380736 = queryWeight, product of:
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.043654136 = queryNorm
        0.21040362 = fieldWeight in 2141, 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=2141)
  0.16666667 = coord(1/6)

Search (2 results, page 1 of 1)

Authors

Years

Themes