Search (2 results, page 1 of 1)

  • × author_ss:"Sparck Jones, K."
  • × theme_ss:"Automatisches Indexieren"
  • × type_ss:"a"
  • × year_i:[1970 TO 1980}
  1. Sparck Jones, K.; Jackson, D.M.: ¬The use of automatically obtained keyword classification for information retrieval (1970) 0.01
    0.012945342 = product of:
      0.09061739 = sum of:
        0.022830293 = weight(_text_:information in 5177) [ClassicSimilarity], result of:
          0.022830293 = score(doc=5177,freq=4.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.43886948 = fieldWeight in 5177, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=5177)
        0.067787096 = weight(_text_:retrieval in 5177) [ClassicSimilarity], result of:
          0.067787096 = score(doc=5177,freq=4.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.75622874 = fieldWeight in 5177, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=5177)
      0.14285715 = coord(2/14)
    
    Source
    Information storage and retrieval. 5(1970), S.175-201
  2. Sparck Jones, K.: Index term weighting (1973) 0.01
    0.009153739 = product of:
      0.06407617 = sum of:
        0.016143454 = weight(_text_:information in 5491) [ClassicSimilarity], result of:
          0.016143454 = score(doc=5491,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.3103276 = fieldWeight in 5491, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=5491)
        0.047932718 = weight(_text_:retrieval in 5491) [ClassicSimilarity], result of:
          0.047932718 = score(doc=5491,freq=2.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.5347345 = fieldWeight in 5491, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=5491)
      0.14285715 = coord(2/14)
    
    Source
    Information storage and retrieval. 9(1973), S.619-633