Search (2 results, page 1 of 1)

  • × language_ss:"e"
  • × theme_ss:"Retrievalstudien"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Ekmekcioglu, F.C.; Robertson, A.M.; Willett, P.: Effectiveness of query expansion in ranked-output document retrieval systems (1992) 0.01 
    0.0108033735 = product of:
  0.021606747 = sum of:
    0.021606747 = product of:
      0.043213494 = sum of:
        0.043213494 = weight(_text_:p in 5689) [ClassicSimilarity], result of:
          0.043213494 = score(doc=5689,freq=2.0), product of:
            0.1359764 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.037818365 = queryNorm
            0.31780142 = fieldWeight in 5689, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.0625 = fieldNorm(doc=5689)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  2. Colace, F.; Santo, M. de; Greco, L.; Napoletano, P.: Improving relevance feedback-based query expansion by the use of a weighted word pairs approach (2015) 0.01 
    0.00810253 = product of:
  0.01620506 = sum of:
    0.01620506 = product of:
      0.03241012 = sum of:
        0.03241012 = weight(_text_:p in 2263) [ClassicSimilarity], result of:
          0.03241012 = score(doc=2263,freq=2.0), product of:
            0.1359764 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.037818365 = queryNorm
            0.23835106 = fieldWeight in 2263, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.046875 = fieldNorm(doc=2263)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Authors

Years