Search (4 results, page 1 of 1)

  • × author_ss:"Lancaster, F.W."
  1. Lancaster, F.W.: Vocabulary control in information retrieval systems (1977) 0.01 
    0.011427229 = product of:
  0.045708917 = sum of:
    0.045708917 = weight(_text_:und in 1774) [ClassicSimilarity], result of:
      0.045708917 = score(doc=1774,freq=2.0), product of:
        0.11666329 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.05263717 = queryNorm
        0.39180204 = fieldWeight in 1774, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.125 = fieldNorm(doc=1774)
  0.25 = coord(1/4)
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  2. Lancaster, F.W.: Vocabulary control for information retrieval (1986) 0.01 
    0.011427229 = product of:
  0.045708917 = sum of:
    0.045708917 = weight(_text_:und in 217) [ClassicSimilarity], result of:
      0.045708917 = score(doc=217,freq=8.0), product of:
        0.11666329 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.05263717 = queryNorm
        0.39180204 = fieldWeight in 217, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.0625 = fieldNorm(doc=217)
  0.25 = coord(1/4)
    Classification
    ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
    RVK
    ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
  3. Krooks, D.A.; Lancaster, F.W.: ¬The evolution of guidelines for thesaurus construction (1993) 0.01 
    0.0057136146 = product of:
  0.022854459 = sum of:
    0.022854459 = weight(_text_:und in 7128) [ClassicSimilarity], result of:
      0.022854459 = score(doc=7128,freq=2.0), product of:
        0.11666329 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.05263717 = 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)
  0.25 = coord(1/4)
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  4. 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 
    0.0042852107 = product of:
  0.017140843 = sum of:
    0.017140843 = weight(_text_:und in 8372) [ClassicSimilarity], result of:
      0.017140843 = score(doc=8372,freq=2.0), product of:
        0.11666329 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.05263717 = 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)
  0.25 = coord(1/4)
    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%)

Years

Types

Themes

Subjects

Classifications