Search (6 results, page 1 of 1)

Krooks, D.A.; Lancaster, F.W.: ¬The evolution of guidelines for thesaurus construction (1993) 0.01

0.007275395 = product of:
  0.04365237 = sum of:
    0.009537406 = weight(_text_:und in 7128) [ClassicSimilarity], result of:
      0.009537406 = score(doc=7128,freq=2.0), product of:
        0.04868482 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.021966046 = queryNorm
        0.19590102 = fieldWeight in 7128, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.0625 = fieldNorm(doc=7128)
    0.014889815 = weight(_text_:des in 7128) [ClassicSimilarity], result of:
      0.014889815 = score(doc=7128,freq=2.0), product of:
        0.06083074 = queryWeight, product of:
          2.7693076 = idf(docFreq=7536, maxDocs=44218)
          0.021966046 = queryNorm
        0.24477452 = fieldWeight in 7128, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.7693076 = idf(docFreq=7536, maxDocs=44218)
          0.0625 = fieldNorm(doc=7128)
    0.009687742 = weight(_text_:der in 7128) [ClassicSimilarity], result of:
      0.009687742 = score(doc=7128,freq=2.0), product of:
        0.049067024 = queryWeight, product of:
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.021966046 = queryNorm
        0.19743896 = fieldWeight in 7128, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.0625 = fieldNorm(doc=7128)
    0.009537406 = weight(_text_:und in 7128) [ClassicSimilarity], result of:
      0.009537406 = score(doc=7128,freq=2.0), product of:
        0.04868482 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.021966046 = queryNorm
        0.19590102 = fieldWeight in 7128, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.0625 = fieldNorm(doc=7128)
  0.16666667 = coord(4/24)

Theme: Geschichte der Sacherschließung
Konzeption und Anwendung des Prinzips Thesaurus

Lancaster, F.W.: Searching databases on CD-ROM : comparison of the results of end-user searching with results from two modes of searching by skilled intermediaries (1994) 0.00

0.0033569948 = product of:
  0.026855959 = sum of:
    0.01254985 = product of:
      0.03764955 = sum of:
        0.03764955 = weight(_text_:p in 8372) [ClassicSimilarity], result of:
          0.03764955 = score(doc=8372,freq=8.0), product of:
            0.078979194 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.021966046 = queryNorm
            0.47670212 = fieldWeight in 8372, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.046875 = fieldNorm(doc=8372)
      0.33333334 = coord(1/3)
    0.0071530542 = weight(_text_:und in 8372) [ClassicSimilarity], result of:
      0.0071530542 = score(doc=8372,freq=2.0), product of:
        0.04868482 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.021966046 = queryNorm
        0.14692576 = fieldWeight in 8372, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.046875 = fieldNorm(doc=8372)
    0.0071530542 = weight(_text_:und in 8372) [ClassicSimilarity], result of:
      0.0071530542 = score(doc=8372,freq=2.0), product of:
        0.04868482 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.021966046 = queryNorm
        0.14692576 = fieldWeight in 8372, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.046875 = fieldNorm(doc=8372)
  0.125 = coord(3/24)

Content: Im einzelnen wurden für den Patron (P), den Education Librarian (E) und das Team (T) folgende Zahlen ermittelt: Recall (P:32,3%; E:45,9%; T:53,8%); Precision (P:75,5%; E:71,4%; T:66,8%); Novelty (P:51,8%; E:61,6%; T:59,4%)

Lancaster, F.W.; Warner, A.J.: Information retrieval today (1993) 0.00

7.7551126E-4 = product of:
  0.01861227 = sum of:
    0.01861227 = weight(_text_:des in 4607) [ClassicSimilarity], result of:
      0.01861227 = score(doc=4607,freq=2.0), product of:
        0.06083074 = queryWeight, product of:
          2.7693076 = idf(docFreq=7536, maxDocs=44218)
          0.021966046 = queryNorm
        0.30596817 = fieldWeight in 4607, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.7693076 = idf(docFreq=7536, maxDocs=44218)
          0.078125 = fieldNorm(doc=4607)
  0.041666668 = coord(1/24)

Content: Es handelt sich um die 3. Aufl. von: 'Information retrieval systems: characteristics, testing and evaluation' des ersten Autors

Lancaster, F.W.: Has technology improved subject access? (199?) 0.00

7.0639787E-4 = product of:
  0.016953548 = sum of:
    0.016953548 = weight(_text_:der in 184) [ClassicSimilarity], result of:
      0.016953548 = score(doc=184,freq=2.0), product of:
        0.049067024 = queryWeight, product of:
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.021966046 = queryNorm
        0.34551817 = fieldWeight in 184, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.109375 = fieldNorm(doc=184)
  0.041666668 = coord(1/24)

Footnote: Vortrag an der FHBD 1994; Originalvortrag: International Conference on new Frontiers in Library and Information Services in Taipei, Taiwan, May 9-11, 1991

Lancaster, F.W.: Librarians, technology and mediocrity (1993) 0.00

4.0365593E-4 = product of:
  0.009687742 = sum of:
    0.009687742 = weight(_text_:der in 7006) [ClassicSimilarity], result of:
      0.009687742 = score(doc=7006,freq=2.0), product of:
        0.049067024 = queryWeight, product of:
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.021966046 = queryNorm
        0.19743896 = fieldWeight in 7006, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.0625 = fieldNorm(doc=7006)
  0.041666668 = coord(1/24)

Series: Veröffentlichungen der Universitätsbibliothek Essen; 15

Lancaster, F.W.: Evaluation in the context of the digital library (1996) 0.00

4.0365593E-4 = product of:
  0.009687742 = sum of:
    0.009687742 = weight(_text_:der in 7886) [ClassicSimilarity], result of:
      0.009687742 = score(doc=7886,freq=2.0), product of:
        0.049067024 = queryWeight, product of:
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.021966046 = queryNorm
        0.19743896 = fieldWeight in 7886, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.0625 = fieldNorm(doc=7886)
  0.041666668 = coord(1/24)

Series: Veröffentlichungen der Universitätsbibliothek Essen; 21

Search (6 results, page 1 of 1)

Authors

Types

Themes