Search (2 results, page 1 of 1)

  • × author_ss:"Robertson, A.M."
  • × 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
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 5689) [ClassicSimilarity], result of:
              0.04321946 = score(doc=5689,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 5689, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5689)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  2. Robertson, A.M.; Willett, P.: Applications of n-grams in textual information systems (1998) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 4715) [ClassicSimilarity], result of:
              0.04321946 = score(doc=4715,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 4715, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4715)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval