Search (1 results, page 1 of 1)

  • × author_ss:"Efthimiadis, E.N."
  • × type_ss:"r"
  • × year_i:[1990 TO 2000}
  1. Efthimiadis, E.N.: Approaches to search formulation and query expansion in information systems : DRS, DBMS, ES (1992) 0.01
    0.0074937996 = product of:
      0.052456595 = sum of:
        0.010089659 = weight(_text_:information in 3871) [ClassicSimilarity], result of:
          0.010089659 = score(doc=3871,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.19395474 = fieldWeight in 3871, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=3871)
        0.042366937 = weight(_text_:retrieval in 3871) [ClassicSimilarity], result of:
          0.042366937 = score(doc=3871,freq=4.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.47264296 = fieldWeight in 3871, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=3871)
      0.14285715 = coord(2/14)
    
    Abstract
    Discusses the ways in which systems and/or users formulate and reformulate searches in documents retrieval systems (DRS), database management systems (DBMS) and expert systems (ES). Concludes that query formulation and reformulation has been neglected in these fields
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval