Search (1 results, page 1 of 1)

  • × year_i:[1970 TO 1980}
  • × classification_ss:"ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme"
  1. Rijsbergen, C.J. van: Information retrieval (1979) 0.05
    0.046073087 = product of:
      0.18429235 = sum of:
        0.102513626 = weight(_text_:allgemeines in 856) [ClassicSimilarity], result of:
          0.102513626 = score(doc=856,freq=4.0), product of:
            0.16427658 = queryWeight, product of:
              5.705423 = idf(docFreq=399, maxDocs=44218)
              0.02879306 = 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)
        0.026794761 = weight(_text_:und in 856) [ClassicSimilarity], result of:
          0.026794761 = score(doc=856,freq=12.0), product of:
            0.06381599 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.02879306 = 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)
        0.011111342 = weight(_text_:der in 856) [ClassicSimilarity], result of:
          0.011111342 = score(doc=856,freq=2.0), product of:
            0.06431698 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.02879306 = queryNorm
            0.17275909 = fieldWeight in 856, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.0546875 = fieldNorm(doc=856)
        0.026794761 = weight(_text_:und in 856) [ClassicSimilarity], result of:
          0.026794761 = score(doc=856,freq=12.0), product of:
            0.06381599 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.02879306 = 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)
        0.017077852 = weight(_text_:des in 856) [ClassicSimilarity], result of:
          0.017077852 = score(doc=856,freq=2.0), product of:
            0.079736836 = queryWeight, product of:
              2.7693076 = idf(docFreq=7536, maxDocs=44218)
              0.02879306 = queryNorm
            0.2141777 = fieldWeight in 856, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.7693076 = idf(docFreq=7536, maxDocs=44218)
              0.0546875 = fieldNorm(doc=856)
      0.25 = coord(5/20)
    
    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
    Footnote
    Text des Buches auch auf der Beilage CD von: Belew, R.K.: Finding out about: a cognitive perspective on search engine technology and the WWW. Cambridge: Cambridge University Press 2001. XXVII, 356 S. + 1 CD-ROM. ISBN 0-521-63028-2. [Sign.: 63 TWD 113]
    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