Search (3 results, page 1 of 1)

  • × author_ss:"Callan, J."
  • × theme_ss:"Retrievalstudien"
  1. Allan, J.; Croft, W.B.; Callan, J.: ¬The University of Massachusetts and a dozen TRECs (2005) 0.02
    0.021597486 = product of:
      0.043194972 = sum of:
        0.043194972 = product of:
          0.086389944 = sum of:
            0.086389944 = weight(_text_:j in 5086) [ClassicSimilarity], result of:
              0.086389944 = score(doc=5086,freq=4.0), product of:
                0.14500295 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.045634337 = queryNorm
                0.5957806 = fieldWeight in 5086, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.09375 = fieldNorm(doc=5086)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  2. Callan, J.; Croft, W.B.; Broglio, J.: TREC and TIPSTER experiments with INQUERY (1995) 0.02
    0.017997904 = product of:
      0.035995807 = sum of:
        0.035995807 = product of:
          0.071991615 = sum of:
            0.071991615 = weight(_text_:j in 1944) [ClassicSimilarity], result of:
              0.071991615 = score(doc=1944,freq=4.0), product of:
                0.14500295 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.045634337 = queryNorm
                0.4964838 = fieldWeight in 1944, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1944)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  3. Robertson, S.; Callan, J.: Routing and filtering (2005) 0.02
    0.017817017 = product of:
      0.035634033 = sum of:
        0.035634033 = product of:
          0.07126807 = sum of:
            0.07126807 = weight(_text_:j in 4688) [ClassicSimilarity], result of:
              0.07126807 = score(doc=4688,freq=2.0), product of:
                0.14500295 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.045634337 = queryNorm
                0.4914939 = fieldWeight in 4688, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4688)
          0.5 = coord(1/2)
      0.5 = coord(1/2)