Search (33 results, page 1 of 2)

  • × theme_ss:"Automatisches Klassifizieren"
  1. Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004) 0.06 
    0.05565373 = sum of:
  0.03901356 = product of:
    0.19506781 = sum of:
      0.19506781 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
        0.19506781 = score(doc=562,freq=2.0), product of:
          0.3470846 = queryWeight, product of:
            8.478011 = idf(docFreq=24, maxDocs=44218)
            0.04093939 = queryNorm
          0.56201804 = fieldWeight in 562, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.478011 = idf(docFreq=24, maxDocs=44218)
            0.046875 = fieldNorm(doc=562)
    0.2 = coord(1/5)
  0.016640168 = product of:
    0.033280335 = sum of:
      0.033280335 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
        0.033280335 = score(doc=562,freq=2.0), product of:
          0.14336278 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.04093939 = queryNorm
          0.23214069 = fieldWeight in 562, 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=562)
    0.5 = coord(1/2)
    Content
    Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
    Date
    8. 1.2013 10:22:32
  2. Liu, R.-L.: ¬A passage extractor for classification of disease aspect information (2013) 0.04 
    0.036616866 = product of:
  0.07323373 = sum of:
    0.07323373 = sum of:
      0.04550012 = weight(_text_:i in 1107) [ClassicSimilarity], result of:
        0.04550012 = score(doc=1107,freq=4.0), product of:
          0.15441231 = queryWeight, product of:
            3.7717297 = idf(docFreq=2765, maxDocs=44218)
            0.04093939 = queryNorm
          0.29466638 = fieldWeight in 1107, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.7717297 = idf(docFreq=2765, maxDocs=44218)
            0.0390625 = fieldNorm(doc=1107)
      0.027733613 = weight(_text_:22 in 1107) [ClassicSimilarity], result of:
        0.027733613 = score(doc=1107,freq=2.0), product of:
          0.14336278 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.04093939 = queryNorm
          0.19345059 = fieldWeight in 1107, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0390625 = fieldNorm(doc=1107)
  0.5 = coord(1/2)
    Abstract
    Retrieval of disease information is often based on several key aspects such as etiology, diagnosis, treatment, prevention, and symptoms of diseases. Automatic identification of disease aspect information is thus essential. In this article, I model the aspect identification problem as a text classification (TC) problem in which a disease aspect corresponds to a category. The disease aspect classification problem poses two challenges to classifiers: (a) a medical text often contains information about multiple aspects of a disease and hence produces noise for the classifiers and (b) text classifiers often cannot extract the textual parts (i.e., passages) about the categories of interest. I thus develop a technique, PETC (Passage Extractor for Text Classification), that extracts passages (from medical texts) for the underlying text classifiers to classify. Case studies on thousands of Chinese and English medical texts show that PETC enhances a support vector machine (SVM) classifier in classifying disease aspect information. PETC also performs better than three state-of-the-art classifier enhancement techniques, including two passage extraction techniques for text classifiers and a technique that employs term proximity information to enhance text classifiers. The contribution is of significance to evidence-based medicine, health education, and healthcare decision support. PETC can be used in those application domains in which a text to be classified may have several parts about different categories.
    Date
    28.10.2013 19:22:57
  3. Shafer, K.E.: Automatic Subject Assignment via the Scorpion System (2001) 0.02 
    0.019304065 = product of:
  0.03860813 = sum of:
    0.03860813 = product of:
      0.07721626 = sum of:
        0.07721626 = weight(_text_:i in 1043) [ClassicSimilarity], result of:
          0.07721626 = score(doc=1043,freq=2.0), product of:
            0.15441231 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.04093939 = queryNorm
            0.50006545 = fieldWeight in 1043, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.09375 = fieldNorm(doc=1043)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Footnote
    Teil eines Themenheftes: OCLC and the Internet: An Historical Overview of Research Activities, 1990-1999 - Part I
  4. Subramanian, S.; Shafer, K.E.: Clustering (2001) 0.02 
    0.016640168 = product of:
  0.033280335 = sum of:
    0.033280335 = product of:
      0.06656067 = sum of:
        0.06656067 = weight(_text_:22 in 1046) [ClassicSimilarity], result of:
          0.06656067 = score(doc=1046,freq=2.0), product of:
            0.14336278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04093939 = queryNorm
            0.46428138 = fieldWeight in 1046, 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=1046)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    5. 5.2003 14:17:22
  5. Reiner, U.: Automatische DDC-Klassifizierung von bibliografischen Titeldatensätzen (2009) 0.01 
    0.013866806 = product of:
  0.027733613 = sum of:
    0.027733613 = product of:
      0.055467226 = sum of:
        0.055467226 = weight(_text_:22 in 611) [ClassicSimilarity], result of:
          0.055467226 = score(doc=611,freq=2.0), product of:
            0.14336278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04093939 = queryNorm
            0.38690117 = fieldWeight in 611, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=611)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 8.2009 12:54:24
  6. HaCohen-Kerner, Y. et al.: Classification using various machine learning methods and combinations of key-phrases and visual features (2016) 0.01 
    0.013866806 = product of:
  0.027733613 = sum of:
    0.027733613 = product of:
      0.055467226 = sum of:
        0.055467226 = weight(_text_:22 in 2748) [ClassicSimilarity], result of:
          0.055467226 = score(doc=2748,freq=2.0), product of:
            0.14336278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04093939 = queryNorm
            0.38690117 = fieldWeight in 2748, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=2748)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 2.2016 18:25:22
  7. Fangmeyer, H.; Gloden, R.: Bewertung und Vergleich von Klassifikationsergebnissen bei automatischen Verfahren (1978) 0.01 
    0.012869377 = product of:
  0.025738753 = sum of:
    0.025738753 = product of:
      0.051477507 = sum of:
        0.051477507 = weight(_text_:i in 81) [ClassicSimilarity], result of:
          0.051477507 = score(doc=81,freq=2.0), product of:
            0.15441231 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.04093939 = queryNorm
            0.33337694 = fieldWeight in 81, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0625 = fieldNorm(doc=81)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Kooperation in der Klassifikation I. Proc. der Sekt.1-3 der 2. Fachtagung der Gesellschaft für Klassifikation, Frankfurt-Hoechst, 6.-7.4.1978. Bearb.: W. Dahlberg
  8. Bollmann, P.; Konrad, E.; Schneider, H.-J.; Zuse, H.: Anwendung automatischer Klassifikationsverfahren mit dem System FAKYR (1978) 0.01 
    0.012869377 = product of:
  0.025738753 = sum of:
    0.025738753 = product of:
      0.051477507 = sum of:
        0.051477507 = weight(_text_:i in 82) [ClassicSimilarity], result of:
          0.051477507 = score(doc=82,freq=2.0), product of:
            0.15441231 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.04093939 = queryNorm
            0.33337694 = fieldWeight in 82, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0625 = fieldNorm(doc=82)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Kooperation in der Klassifikation I. Proc. der Sekt.1-3 der 2. Fachtagung der Gesellschaft für Klassifikation, Frankfurt-Hoechst, 6.-7.4.1978. Bearb.: W. Dahlberg
  9. Schulze, U.: Erfahrungen bei der Anwendung automatischer Klassifizierungsverfahren zur Inhaltsanalyse einer Dokumentenmenge (1978) 0.01 
    0.012869377 = product of:
  0.025738753 = sum of:
    0.025738753 = product of:
      0.051477507 = sum of:
        0.051477507 = weight(_text_:i in 83) [ClassicSimilarity], result of:
          0.051477507 = score(doc=83,freq=2.0), product of:
            0.15441231 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.04093939 = queryNorm
            0.33337694 = fieldWeight in 83, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0625 = fieldNorm(doc=83)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Kooperation in der Klassifikation I. Proc. der Sekt.1-3 der 2. Fachtagung der Gesellschaft für Klassifikation, Frankfurt-Hoechst, 6.-7.4.1978. Bearb.: W. Dahlberg
  10. Cheng, P.T.K.; Wu, A.K.W.: ACS: an automatic classification system (1995) 0.01 
    0.012869377 = product of:
  0.025738753 = sum of:
    0.025738753 = product of:
      0.051477507 = sum of:
        0.051477507 = weight(_text_:i in 2188) [ClassicSimilarity], result of:
          0.051477507 = score(doc=2188,freq=2.0), product of:
            0.15441231 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.04093939 = queryNorm
            0.33337694 = fieldWeight in 2188, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0625 = fieldNorm(doc=2188)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    In this paper, we introduce ACS, an automatic classification system for school libraries. First, various approaches towards automatic classification, namely (i) rule-based, (ii) browse and search, and (iii) partial match, are critically reviewed. The central issues of scheme selection, text analysis and similarity measures are discussed. A novel approach towards detecting book-class similarity with Modified Overlap Coefficient (MOC) is also proposed. Finally, the design and implementation of ACS is presented. The test result of over 80% correctness in automatic classification and a cost reduction of 75% compared to manual classification suggest that ACS is highly adoptable
  11. Panyr, J.: Automatische Indexierung und Klassifikation (1983) 0.01 
    0.012869377 = product of:
  0.025738753 = sum of:
    0.025738753 = product of:
      0.051477507 = sum of:
        0.051477507 = weight(_text_:i in 7692) [ClassicSimilarity], result of:
          0.051477507 = score(doc=7692,freq=2.0), product of:
            0.15441231 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.04093939 = queryNorm
            0.33337694 = fieldWeight in 7692, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0625 = fieldNorm(doc=7692)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Automatisierung in der Klassifikation. Proc. 7. Jahrestagung der Gesellschaft für Klassifikation (Teil 1), Königswinter, 5.-8.4.1983. Hrsg.: I. Dahlberg u.a
  12. Ingwersen, P.; Wormell, I.: Ranganathan in the perspective of advanced information retrieval (1992) 0.01 
    0.012869377 = product of:
  0.025738753 = sum of:
    0.025738753 = product of:
      0.051477507 = sum of:
        0.051477507 = weight(_text_:i in 7695) [ClassicSimilarity], result of:
          0.051477507 = score(doc=7695,freq=2.0), product of:
            0.15441231 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.04093939 = queryNorm
            0.33337694 = fieldWeight in 7695, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0625 = fieldNorm(doc=7695)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  13. Fuhr, N.: Klassifikationsverfahren bei der automatischen Indexierung (1983) 0.01 
    0.012869377 = product of:
  0.025738753 = sum of:
    0.025738753 = product of:
      0.051477507 = sum of:
        0.051477507 = weight(_text_:i in 7697) [ClassicSimilarity], result of:
          0.051477507 = score(doc=7697,freq=2.0), product of:
            0.15441231 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.04093939 = queryNorm
            0.33337694 = fieldWeight in 7697, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0625 = fieldNorm(doc=7697)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Automatisierung in der Klassifikation. Proc. 7. Jahrestagung der Gesellschaft für Klassifikation (Teil 1), Königswinter, 5.-8.4.1983. Hrsg.: I. Dahlberg u.a
  14. Krauth, J.: Evaluation von Verfahren der automatischen Klassifikation (1983) 0.01 
    0.012869377 = product of:
  0.025738753 = sum of:
    0.025738753 = product of:
      0.051477507 = sum of:
        0.051477507 = weight(_text_:i in 111) [ClassicSimilarity], result of:
          0.051477507 = score(doc=111,freq=2.0), product of:
            0.15441231 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.04093939 = queryNorm
            0.33337694 = fieldWeight in 111, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0625 = fieldNorm(doc=111)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Automatisierung in der Klassifikation. Proc. 7. Jahrestagung der Gesellschaft für Klassifikation (Teil 1), Königswinter, 5.-8.4.1983. Hrsg.: I. Dahlberg u.a
  15. Bock, H.-H.: Datenanalyse zur Strukturierung und Ordnung von Information (1989) 0.01 
    0.0097067645 = product of:
  0.019413529 = sum of:
    0.019413529 = product of:
      0.038827058 = sum of:
        0.038827058 = weight(_text_:22 in 141) [ClassicSimilarity], result of:
          0.038827058 = score(doc=141,freq=2.0), product of:
            0.14336278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04093939 = queryNorm
            0.2708308 = fieldWeight in 141, 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=141)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Pages
    S.1-22
  16. Dubin, D.: Dimensions and discriminability (1998) 0.01 
    0.0097067645 = product of:
  0.019413529 = sum of:
    0.019413529 = product of:
      0.038827058 = sum of:
        0.038827058 = weight(_text_:22 in 2338) [ClassicSimilarity], result of:
          0.038827058 = score(doc=2338,freq=2.0), product of:
            0.14336278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04093939 = queryNorm
            0.2708308 = fieldWeight in 2338, 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=2338)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 9.1997 19:16:05
  17. Automatic classification research at OCLC (2002) 0.01 
    0.0097067645 = product of:
  0.019413529 = sum of:
    0.019413529 = product of:
      0.038827058 = sum of:
        0.038827058 = weight(_text_:22 in 1563) [ClassicSimilarity], result of:
          0.038827058 = score(doc=1563,freq=2.0), product of:
            0.14336278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04093939 = queryNorm
            0.2708308 = fieldWeight in 1563, 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=1563)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    5. 5.2003 9:22:09
  18. Jenkins, C.: Automatic classification of Web resources using Java and Dewey Decimal Classification (1998) 0.01 
    0.0097067645 = product of:
  0.019413529 = sum of:
    0.019413529 = product of:
      0.038827058 = sum of:
        0.038827058 = weight(_text_:22 in 1673) [ClassicSimilarity], result of:
          0.038827058 = score(doc=1673,freq=2.0), product of:
            0.14336278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04093939 = queryNorm
            0.2708308 = fieldWeight in 1673, 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=1673)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 8.1996 22:08:06
  19. Yoon, Y.; Lee, C.; Lee, G.G.: ¬An effective procedure for constructing a hierarchical text classification system (2006) 0.01 
    0.0097067645 = product of:
  0.019413529 = sum of:
    0.019413529 = product of:
      0.038827058 = sum of:
        0.038827058 = weight(_text_:22 in 5273) [ClassicSimilarity], result of:
          0.038827058 = score(doc=5273,freq=2.0), product of:
            0.14336278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04093939 = queryNorm
            0.2708308 = fieldWeight in 5273, 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=5273)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 7.2006 16:24:52
  20. Yi, K.: Automatic text classification using library classification schemes : trends, issues and challenges (2007) 0.01 
    0.0097067645 = product of:
  0.019413529 = sum of:
    0.019413529 = product of:
      0.038827058 = sum of:
        0.038827058 = weight(_text_:22 in 2560) [ClassicSimilarity], result of:
          0.038827058 = score(doc=2560,freq=2.0), product of:
            0.14336278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04093939 = queryNorm
            0.2708308 = fieldWeight in 2560, 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=2560)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 9.2008 18:31:54

Authors

Years

Languages

  • e 20
  • d 13

Types

  • a 30
  • el 3
  • x 1
  • More… Less…

Themes