Search (3 results, page 1 of 1)

  • × language_ss:"d"
  • × theme_ss:"Volltextretrieval"
  • × year_i:[1980 TO 1990}
  1. Maag, D.: Leistungsmerkmale von Volltextretrievalsystemen : Anforderungen an die künftige Weiterentwicklung (1989) 0.01
    0.006866273 = product of:
      0.027465092 = sum of:
        0.027465092 = weight(_text_:information in 2747) [ClassicSimilarity], result of:
          0.027465092 = score(doc=2747,freq=2.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.3103276 = fieldWeight in 2747, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=2747)
      0.25 = coord(1/4)
    
    Imprint
    Darmstadt : Fachhochschule, Fachbereich Information und Dokumentation
  2. Freitext in Informationssystemen (1985) 0.01
    0.005149705 = product of:
      0.02059882 = sum of:
        0.02059882 = weight(_text_:information in 2036) [ClassicSimilarity], result of:
          0.02059882 = score(doc=2036,freq=2.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.23274569 = fieldWeight in 2036, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=2036)
      0.25 = coord(1/4)
    
    Footnote
    Deutsche Fassung von 'Free text in information systems' in: International classification 12(1985) H.2, S.95-98. Wegen einiger Ungereimtheiten sollte die englische Fassung benutzt werden
  3. Wenzel, F.: Semantische Eingrenzung im Freitext-Retrieval auf der Basis morphologischer Segmentierungen (1980) 0.00
    0.0042914203 = product of:
      0.017165681 = sum of:
        0.017165681 = weight(_text_:information in 2037) [ClassicSimilarity], result of:
          0.017165681 = score(doc=2037,freq=2.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.19395474 = fieldWeight in 2037, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=2037)
      0.25 = coord(1/4)
    
    Abstract
    The basic problem in freetext retrieval is that the retrieval language is not properly adapted to that of the author. Morphological segmentation, where words with the same root are grouped together in the inverted file, is a good eliminator of noise and information loss, providing high recall but low precision

Authors

Types