Search (2 results, page 1 of 1)

  • × year_i:[1970 TO 1980}
  • × type_ss:"d"
  1. Engelien, G.: ¬Der Begriff der Klassifikation (1971) 0.00
    0.003948777 = product of:
      0.02369266 = sum of:
        0.02369266 = weight(_text_:und in 3386) [ClassicSimilarity], result of:
          0.02369266 = score(doc=3386,freq=2.0), product of:
            0.09675359 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.043654136 = queryNorm
            0.24487628 = fieldWeight in 3386, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.078125 = fieldNorm(doc=3386)
      0.16666667 = coord(1/6)
    
    Series
    Forschungsberichte des Instituts für Kommunikationsforschung und Phonetik der Universität Bonn; Bd.36
  2. Tahani, V.: ¬A general conceptual framework for information retrieval systems (1972) 0.00
    0.0021034614 = product of:
      0.012620768 = sum of:
        0.012620768 = weight(_text_:in in 70) [ClassicSimilarity], result of:
          0.012620768 = score(doc=70,freq=4.0), product of:
            0.059380736 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.043654136 = queryNorm
            0.21253976 = fieldWeight in 70, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.078125 = fieldNorm(doc=70)
      0.16666667 = coord(1/6)
    
    Abstract
    Develops a conceptual framework for information retrieval systems which admit of imprecision in the form of fuzziness in document characterization, retrieval rules, and file structures. A mathematical model for such systems, based on the theory of fuzzy sets, is introduced