Search (2 results, page 1 of 1)

  • × author_ss:"Rijsbergen, C.J. van"
  • × year_i:[1970 TO 1980}
  1. Rijsbergen, C.J. van: Information retrieval (1979) 0.01 
    0.0053590285 = product of:
  0.026795141 = sum of:
    0.026795141 = product of:
      0.053590283 = sum of:
        0.053590283 = weight(_text_:management in 856) [ClassicSimilarity], result of:
          0.053590283 = score(doc=856,freq=4.0), product of:
            0.14536478 = queryWeight, product of:
              3.3706124 = idf(docFreq=4130, maxDocs=44218)
              0.043127112 = queryNorm
            0.36866072 = fieldWeight in 856, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.3706124 = idf(docFreq=4130, maxDocs=44218)
              0.0546875 = fieldNorm(doc=856)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    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
  2. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.00 
    0.004674503 = product of:
  0.023372514 = sum of:
    0.023372514 = product of:
      0.04674503 = sum of:
        0.04674503 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
          0.04674503 = score(doc=5002,freq=2.0), product of:
            0.1510238 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.043127112 = 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)
  0.2 = coord(1/5)
    Date
    19. 3.1996 11:22:12

Types

Themes

Subjects

Classifications