Search (1 results, page 1 of 1)

  • × author_ss:"Shaw, R.J."
  • × author_ss:"Willett, P."
  1. Shaw, R.J.; Willett, P.: On the non-random nature of nearest-neighbour document clusters (1993) 0.00
    0.0045768693 = product of:
      0.032038085 = sum of:
        0.008071727 = weight(_text_:information in 5817) [ClassicSimilarity], result of:
          0.008071727 = score(doc=5817,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.1551638 = fieldWeight in 5817, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=5817)
        0.023966359 = weight(_text_:retrieval in 5817) [ClassicSimilarity], result of:
          0.023966359 = score(doc=5817,freq=2.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.26736724 = fieldWeight in 5817, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=5817)
      0.14285715 = coord(2/14)
    
    Abstract
    It has been suggested that the observed values of retrieval effectiveness that are obtained in searches of files of nearest-neighbour clusters can be explained by assuming that the pairwise inter-document similarities used to construct the clusters have been generated randomly. Such similarities are significantly different from those obtained by a random generation procedure
    Source
    Information processing and management. 29(1993) no.4, S.449-452