Search (3 results, page 1 of 1)

  • × author_ss:"Belkin, N.J."
  • × author_ss:"Croft, W.B."
  1. Belkin, N.J.; Croft, W.B.: Retrieval techniques (1987) 0.05
    0.054741066 = product of:
      0.10948213 = sum of:
        0.10948213 = sum of:
          0.009625752 = weight(_text_:s in 334) [ClassicSimilarity], result of:
            0.009625752 = score(doc=334,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.19219826 = fieldWeight in 334, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.125 = fieldNorm(doc=334)
          0.09985638 = weight(_text_:22 in 334) [ClassicSimilarity], result of:
            0.09985638 = score(doc=334,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.61904186 = fieldWeight in 334, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.125 = fieldNorm(doc=334)
      0.5 = coord(1/2)
    
    Source
    Annual review of information science and technology. 22(1987), S.109-145
  2. Belkin, N.J.; Croft, W.B.: Information filtering and information retrieval : two sides of the same coin? (1992) 0.00
    0.0018048285 = product of:
      0.003609657 = sum of:
        0.003609657 = product of:
          0.007219314 = sum of:
            0.007219314 = weight(_text_:s in 6093) [ClassicSimilarity], result of:
              0.007219314 = score(doc=6093,freq=2.0), product of:
                0.05008241 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046063907 = queryNorm
                0.14414869 = fieldWeight in 6093, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.09375 = fieldNorm(doc=6093)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Communications of the Association for Computing Machinery. 35(1992) no.12, S.29-38
  3. Murdock, V.; Kelly, D.; Croft, W.B.; Belkin, N.J.; Yuan, X.: Identifying and improving retrieval for procedural questions (2007) 0.00
    9.0241426E-4 = product of:
      0.0018048285 = sum of:
        0.0018048285 = product of:
          0.003609657 = sum of:
            0.003609657 = weight(_text_:s in 902) [ClassicSimilarity], result of:
              0.003609657 = score(doc=902,freq=2.0), product of:
                0.05008241 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046063907 = queryNorm
                0.072074346 = fieldWeight in 902, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=902)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 43(2007) no.1, S.181-203