Search (5 results, page 1 of 1)

  • × author_ss:"Lancaster, F.W."
  1. Lancaster, F.W.: Evaluation within the environment of an operating information service (1981) 0.01
    0.014856073 = product of:
      0.029712146 = sum of:
        0.029712146 = product of:
          0.08913644 = sum of:
            0.08913644 = weight(_text_:k in 3150) [ClassicSimilarity], result of:
              0.08913644 = score(doc=3150,freq=2.0), product of:
                0.16142878 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.045220956 = queryNorm
                0.5521719 = fieldWeight in 3150, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.109375 = fieldNorm(doc=3150)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
  2. Lancaster, F.W.: MEDLARS : report on the evaluation of its operating effiency (1961) 0.01
    0.012733776 = product of:
      0.025467552 = sum of:
        0.025467552 = product of:
          0.07640266 = sum of:
            0.07640266 = weight(_text_:k in 1931) [ClassicSimilarity], result of:
              0.07640266 = score(doc=1931,freq=2.0), product of:
                0.16142878 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.045220956 = queryNorm
                0.47329018 = fieldWeight in 1931, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1931)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.223-246.
  3. Lancaster, F.W.: Vocabulary control for information retrieval (1986) 0.01
    0.008169088 = product of:
      0.016338175 = sum of:
        0.016338175 = product of:
          0.049014524 = sum of:
            0.049014524 = weight(_text_:22 in 217) [ClassicSimilarity], result of:
              0.049014524 = score(doc=217,freq=2.0), product of:
                0.15835609 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045220956 = queryNorm
                0.30952093 = fieldWeight in 217, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=217)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    22. 4.2007 10:07:51
  4. Xu, H.; Lancaster, F.W.: Redundancy and uniqueness of subject access points in online catalogs (1998) 0.00
    0.0030839336 = product of:
      0.006167867 = sum of:
        0.006167867 = product of:
          0.0185036 = sum of:
            0.0185036 = weight(_text_:h in 1788) [ClassicSimilarity], result of:
              0.0185036 = score(doc=1788,freq=2.0), product of:
                0.11234917 = queryWeight, product of:
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.045220956 = queryNorm
                0.16469726 = fieldWeight in 1788, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1788)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  5. Lancaster, F.W.: Indexing and abstracting in theory and practice (2003) 0.00
    0.0030839336 = product of:
      0.006167867 = sum of:
        0.006167867 = product of:
          0.0185036 = sum of:
            0.0185036 = weight(_text_:h in 4913) [ClassicSimilarity], result of:
              0.0185036 = score(doc=4913,freq=2.0), product of:
                0.11234917 = queryWeight, product of:
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.045220956 = queryNorm
                0.16469726 = fieldWeight in 4913, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4913)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Footnote
    Rez. in: JASIST 57(2006) no.1, S.144-145 (H. Saggion): "... This volume is a very valuable source of information for not only students and professionals in library and information science but also for individuals and institutions involved in knowledge management and organization activities. Because of its broad coverage of the information science topic, teachers will find the contents of this book useful for courses in the areas of information technology, digital as well as traditional libraries, and information science in general."