Search (9 results, page 1 of 1)

  • × theme_ss:"Automatisches Indexieren"
  • × year_i:[2000 TO 2010}
  1. Hlava, M.M.K.: Automatic indexing : comparing rule-based and statistics-based indexing systems (2005) 0.02
    0.02403218 = product of:
      0.04806436 = sum of:
        0.04806436 = product of:
          0.09612872 = sum of:
            0.09612872 = weight(_text_:22 in 6265) [ClassicSimilarity], result of:
              0.09612872 = score(doc=6265,freq=2.0), product of:
                0.17747006 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050679237 = queryNorm
                0.5416616 = fieldWeight in 6265, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=6265)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information outlook. 9(2005) no.8, S.22-23
  2. Witschel, H.F.: Terminology extraction and automatic indexing : comparison and qualitative evaluation of methods (2005) 0.02
    0.022100445 = product of:
      0.04420089 = sum of:
        0.04420089 = product of:
          0.08840178 = sum of:
            0.08840178 = weight(_text_:maps in 1842) [ClassicSimilarity], result of:
              0.08840178 = score(doc=1842,freq=2.0), product of:
                0.28477904 = queryWeight, product of:
                  5.619245 = idf(docFreq=435, maxDocs=44218)
                  0.050679237 = queryNorm
                0.31042236 = fieldWeight in 1842, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.619245 = idf(docFreq=435, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1842)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Many terminology engineering processes involve the task of automatic terminology extraction: before the terminology of a given domain can be modelled, organised or standardised, important concepts (or terms) of this domain have to be identified and fed into terminological databases. These serve in further steps as a starting point for compiling dictionaries, thesauri or maybe even terminological ontologies for the domain. For the extraction of the initial concepts, extraction methods are needed that operate on specialised language texts. On the other hand, many machine learning or information retrieval applications require automatic indexing techniques. In Machine Learning applications concerned with the automatic clustering or classification of texts, often feature vectors are needed that describe the contents of a given text briefly but meaningfully. These feature vectors typically consist of a fairly small set of index terms together with weights indicating their importance. Short but meaningful descriptions of document contents as provided by good index terms are also useful to humans: some knowledge management applications (e.g. topic maps) use them as a set of basic concepts (topics). The author believes that the tasks of terminology extraction and automatic indexing have much in common and can thus benefit from the same set of basic algorithms. It is the goal of this paper to outline some methods that may be used in both contexts, but also to find the discriminating factors between the two tasks that call for the variation of parameters or application of different techniques. The discussion of these methods will be based on statistical, syntactical and especially morphological properties of (index) terms. The paper is concluded by the presentation of some qualitative and quantitative results comparing statistical and morphological methods.
  3. Hauer, M.: Automatische Indexierung (2000) 0.02
    0.020599011 = product of:
      0.041198023 = sum of:
        0.041198023 = product of:
          0.082396045 = sum of:
            0.082396045 = weight(_text_:22 in 5887) [ClassicSimilarity], result of:
              0.082396045 = score(doc=5887,freq=2.0), product of:
                0.17747006 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050679237 = queryNorm
                0.46428138 = fieldWeight in 5887, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=5887)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Wissen in Aktion: Wege des Knowledge Managements. 22. Online-Tagung der DGI, Frankfurt am Main, 2.-4.5.2000. Proceedings. Hrsg.: R. Schmidt
  4. Lepsky, K.; Vorhauer, J.: Lingo - ein open source System für die Automatische Indexierung deutschsprachiger Dokumente (2006) 0.01
    0.0137326745 = product of:
      0.027465349 = sum of:
        0.027465349 = product of:
          0.054930698 = sum of:
            0.054930698 = weight(_text_:22 in 3581) [ClassicSimilarity], result of:
              0.054930698 = score(doc=3581,freq=2.0), product of:
                0.17747006 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050679237 = queryNorm
                0.30952093 = fieldWeight in 3581, 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=3581)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    24. 3.2006 12:22:02
  5. Probst, M.; Mittelbach, J.: Maschinelle Indexierung in der Sacherschließung wissenschaftlicher Bibliotheken (2006) 0.01
    0.0137326745 = product of:
      0.027465349 = sum of:
        0.027465349 = product of:
          0.054930698 = sum of:
            0.054930698 = weight(_text_:22 in 1755) [ClassicSimilarity], result of:
              0.054930698 = score(doc=1755,freq=2.0), product of:
                0.17747006 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050679237 = queryNorm
                0.30952093 = fieldWeight in 1755, 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=1755)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2008 12:35:19
  6. Renz, M.: Automatische Inhaltserschließung im Zeichen von Wissensmanagement (2001) 0.01
    0.01201609 = product of:
      0.02403218 = sum of:
        0.02403218 = product of:
          0.04806436 = sum of:
            0.04806436 = weight(_text_:22 in 5671) [ClassicSimilarity], result of:
              0.04806436 = score(doc=5671,freq=2.0), product of:
                0.17747006 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050679237 = queryNorm
                0.2708308 = fieldWeight in 5671, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=5671)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2001 13:14:48
  7. Newman, D.J.; Block, S.: Probabilistic topic decomposition of an eighteenth-century American newspaper (2006) 0.01
    0.01201609 = product of:
      0.02403218 = sum of:
        0.02403218 = product of:
          0.04806436 = sum of:
            0.04806436 = weight(_text_:22 in 5291) [ClassicSimilarity], result of:
              0.04806436 = score(doc=5291,freq=2.0), product of:
                0.17747006 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050679237 = queryNorm
                0.2708308 = fieldWeight in 5291, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=5291)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 17:32:00
  8. Lorenz, S.: Konzeption und prototypische Realisierung einer begriffsbasierten Texterschließung (2006) 0.01
    0.010299506 = product of:
      0.020599011 = sum of:
        0.020599011 = product of:
          0.041198023 = sum of:
            0.041198023 = weight(_text_:22 in 1746) [ClassicSimilarity], result of:
              0.041198023 = score(doc=1746,freq=2.0), product of:
                0.17747006 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050679237 = queryNorm
                0.23214069 = fieldWeight in 1746, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1746)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2015 9:17:30
  9. Nohr, H.: Grundlagen der automatischen Indexierung : ein Lehrbuch (2003) 0.01
    0.0068663373 = product of:
      0.0137326745 = sum of:
        0.0137326745 = product of:
          0.027465349 = sum of:
            0.027465349 = weight(_text_:22 in 1767) [ClassicSimilarity], result of:
              0.027465349 = score(doc=1767,freq=2.0), product of:
                0.17747006 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050679237 = queryNorm
                0.15476047 = fieldWeight in 1767, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=1767)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 6.2009 12:46:51