Search (2 results, page 1 of 1)

  • × author_ss:"Rijsbergen, C.J. van"
  • × language_ss:"e"
  • × year_i:[1970 TO 1980}
  1. Rijsbergen, C.J. van: Information retrieval (1979) 0.16 
    0.16176198 = product of:
  0.40440497 = sum of:
    0.10125652 = weight(_text_:allgemeines in 856) [ClassicSimilarity], result of:
      0.10125652 = score(doc=856,freq=4.0), product of:
        0.1622621 = queryWeight, product of:
          5.705423 = idf(docFreq=399, maxDocs=44218)
          0.028439978 = queryNorm
        0.62403065 = fieldWeight in 856, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          5.705423 = idf(docFreq=399, maxDocs=44218)
          0.0546875 = fieldNorm(doc=856)
    0.06724122 = weight(_text_:buch in 856) [ClassicSimilarity], result of:
      0.06724122 = score(doc=856,freq=4.0), product of:
        0.13222799 = queryWeight, product of:
          4.64937 = idf(docFreq=1149, maxDocs=44218)
          0.028439978 = queryNorm
        0.5085249 = fieldWeight in 856, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.64937 = idf(docFreq=1149, maxDocs=44218)
          0.0546875 = fieldNorm(doc=856)
    0.026466185 = weight(_text_:und in 856) [ClassicSimilarity], result of:
      0.026466185 = score(doc=856,freq=12.0), product of:
        0.06303343 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.028439978 = queryNorm
        0.41987535 = fieldWeight in 856, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.0546875 = fieldNorm(doc=856)
    0.030905344 = product of:
      0.061810687 = sum of:
        0.061810687 = weight(_text_:bibliothekswesen in 856) [ClassicSimilarity], result of:
          0.061810687 = score(doc=856,freq=4.0), product of:
            0.1267761 = queryWeight, product of:
              4.457672 = idf(docFreq=1392, maxDocs=44218)
              0.028439978 = queryNorm
            0.4875579 = fieldWeight in 856, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.457672 = idf(docFreq=1392, maxDocs=44218)
              0.0546875 = fieldNorm(doc=856)
      0.5 = coord(1/2)
    0.08926784 = weight(_text_:informationswissenschaft in 856) [ClassicSimilarity], result of:
      0.08926784 = score(doc=856,freq=8.0), product of:
        0.12811372 = queryWeight, product of:
          4.504705 = idf(docFreq=1328, maxDocs=44218)
          0.028439978 = queryNorm
        0.696786 = fieldWeight in 856, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          4.504705 = idf(docFreq=1328, maxDocs=44218)
          0.0546875 = fieldNorm(doc=856)
    0.08926784 = weight(_text_:informationswissenschaft in 856) [ClassicSimilarity], result of:
      0.08926784 = score(doc=856,freq=8.0), product of:
        0.12811372 = queryWeight, product of:
          4.504705 = idf(docFreq=1328, maxDocs=44218)
          0.028439978 = queryNorm
        0.696786 = fieldWeight in 856, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          4.504705 = idf(docFreq=1328, maxDocs=44218)
          0.0546875 = fieldNorm(doc=856)
  0.4 = coord(6/15)
    Classification
    ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
    AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis
    RVK
    ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
    AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis
  2. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.00 
    0.0010275266 = product of:
  0.015412898 = sum of:
    0.015412898 = product of:
      0.030825796 = sum of:
        0.030825796 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
          0.030825796 = score(doc=5002,freq=2.0), product of:
            0.099591956 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.028439978 = queryNorm
            0.30952093 = fieldWeight in 5002, 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=5002)
      0.5 = coord(1/2)
  0.06666667 = coord(1/15)
    Date
    19. 3.1996 11:22:12

Types

Themes

Subjects

Classifications