Search (2 results, page 1 of 1)

  • × author_ss:"Sparck Jones, K."
  • × theme_ss:"Retrievalalgorithmen"
  • × year_i:[1970 TO 1980}
  1. Sparck Jones, K.: Search term relevance weighting given little relevance information (1979) 0.00
    8.1759685E-4 = product of:
      0.012263952 = sum of:
        0.007483202 = weight(_text_:in in 1939) [ClassicSimilarity], result of:
          0.007483202 = score(doc=1939,freq=4.0), product of:
            0.029340398 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.021569785 = queryNorm
            0.25504774 = fieldWeight in 1939, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.09375 = fieldNorm(doc=1939)
        0.00478075 = weight(_text_:s in 1939) [ClassicSimilarity], result of:
          0.00478075 = score(doc=1939,freq=4.0), product of:
            0.023451481 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.021569785 = queryNorm
            0.20385705 = fieldWeight in 1939, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=1939)
      0.06666667 = coord(2/30)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.329-338.
    Source
    Journal of documentation. 35(1979), S.30-48
  2. Sparck Jones, K.: ¬A statistical interpretation of term specifity and its application in retrieval (1972) 0.00
    7.708376E-4 = product of:
      0.0115625635 = sum of:
        0.00705523 = weight(_text_:in in 5187) [ClassicSimilarity], result of:
          0.00705523 = score(doc=5187,freq=2.0), product of:
            0.029340398 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.021569785 = queryNorm
            0.24046129 = fieldWeight in 5187, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.125 = fieldNorm(doc=5187)
        0.004507334 = weight(_text_:s in 5187) [ClassicSimilarity], result of:
          0.004507334 = score(doc=5187,freq=2.0), product of:
            0.023451481 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.021569785 = queryNorm
            0.19219826 = fieldWeight in 5187, 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=5187)
      0.06666667 = coord(2/30)
    
    Source
    Journal of documentation. 28(1972), S.11-21