Search (3 results, page 1 of 1)

  • × author_ss:"Callan, J."
  • × theme_ss:"Retrievalstudien"
  1. Callan, J.; Croft, W.B.; Broglio, J.: TREC and TIPSTER experiments with INQUERY (1995) 0.00
    4.7642342E-4 = product of:
      0.007146351 = sum of:
        0.007146351 = product of:
          0.014292702 = sum of:
            0.014292702 = weight(_text_:information in 1944) [ClassicSimilarity], result of:
              0.014292702 = score(doc=1944,freq=4.0), product of:
                0.052107345 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.029682713 = queryNorm
                0.27429342 = fieldWeight in 1944, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1944)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.436-439.
    Source
    Information processing and management. 31(1995) no.3, S.327-343
  2. Robertson, S.; Callan, J.: Routing and filtering (2005) 0.00
    4.7163517E-4 = product of:
      0.007074527 = sum of:
        0.007074527 = product of:
          0.014149054 = sum of:
            0.014149054 = weight(_text_:information in 4688) [ClassicSimilarity], result of:
              0.014149054 = score(doc=4688,freq=2.0), product of:
                0.052107345 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.029682713 = queryNorm
                0.27153665 = fieldWeight in 4688, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4688)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    TREC: experiment and evaluation in information retrieval. Ed.: E.M. Voorhees, u. D.K. Harman
  3. Allan, J.; Croft, W.B.; Callan, J.: ¬The University of Massachusetts and a dozen TRECs (2005) 0.00
    4.042587E-4 = product of:
      0.00606388 = sum of:
        0.00606388 = product of:
          0.01212776 = sum of:
            0.01212776 = weight(_text_:information in 5086) [ClassicSimilarity], result of:
              0.01212776 = score(doc=5086,freq=2.0), product of:
                0.052107345 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.029682713 = queryNorm
                0.23274569 = fieldWeight in 5086, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.09375 = fieldNorm(doc=5086)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    TREC: experiment and evaluation in information retrieval. Ed.: E.M. Voorhees, u. D.K. Harman