Search (19 results, page 1 of 1)

  • × theme_ss:"Automatisches Klassifizieren"
  1. Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004) 0.10
    0.101876244 = sum of:
      0.08111724 = product of:
        0.24335173 = sum of:
          0.24335173 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
            0.24335173 = score(doc=562,freq=2.0), product of:
              0.4329963 = queryWeight, product of:
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.051072862 = 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)
        0.33333334 = coord(1/3)
      0.020759003 = product of:
        0.041518006 = sum of:
          0.041518006 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
            0.041518006 = score(doc=562,freq=2.0), product of:
              0.17884846 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.051072862 = 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. Subramanian, S.; Shafer, K.E.: Clustering (2001) 0.02
    0.020759003 = product of:
      0.041518006 = sum of:
        0.041518006 = product of:
          0.08303601 = sum of:
            0.08303601 = weight(_text_:22 in 1046) [ClassicSimilarity], result of:
              0.08303601 = score(doc=1046,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = 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
  3. Rooney, N.; Patterson, D.; Galushka, M.; Dobrynin, V.; Smirnova, E.: ¬An investigation into the stability of contextual document clustering (2008) 0.02
    0.019435903 = product of:
      0.038871806 = sum of:
        0.038871806 = product of:
          0.116615415 = sum of:
            0.116615415 = weight(_text_:themes in 1356) [ClassicSimilarity], result of:
              0.116615415 = score(doc=1356,freq=2.0), product of:
                0.3283489 = queryWeight, product of:
                  6.429029 = idf(docFreq=193, maxDocs=44218)
                  0.051072862 = queryNorm
                0.35515702 = fieldWeight in 1356, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.429029 = idf(docFreq=193, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1356)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Abstract
    In this article, we assess the effectiveness of Contextual Document Clustering (CDC) as a means of indexing within a dynamic and rapidly changing environment. We simulate a dynamic environment, by splitting two chronologically ordered datasets into time-ordered segments and assessing how the technique performs under two different scenarios. The first is when new documents are added incrementally without reclustering [incremental CDC (iCDC)], and the second is when reclustering is performed [nonincremental CDC (nCDC)]. The datasets are very large, are independent of each other, and belong to two very different domains. We show that CDC itself is effective at clustering very large document corpora, and that, significantly, it lends itself to a very simple, efficient incremental document addition process that is seen to be very stable over time despite the size of the corpus growing considerably. It was seen to be effective at incrementally clustering new documents even when the corpus grew to six times its original size. This is in contrast to what other researchers have found when applying similar simple incremental approaches to document clustering. The stability of iCDC is accounted for by the unique manner in which CDC discovers cluster themes.
  4. Reiner, U.: Automatische DDC-Klassifizierung von bibliografischen Titeldatensätzen (2009) 0.02
    0.01729917 = product of:
      0.03459834 = sum of:
        0.03459834 = product of:
          0.06919668 = sum of:
            0.06919668 = weight(_text_:22 in 611) [ClassicSimilarity], result of:
              0.06919668 = score(doc=611,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = 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
  5. HaCohen-Kerner, Y. et al.: Classification using various machine learning methods and combinations of key-phrases and visual features (2016) 0.02
    0.01729917 = product of:
      0.03459834 = sum of:
        0.03459834 = product of:
          0.06919668 = sum of:
            0.06919668 = weight(_text_:22 in 2748) [ClassicSimilarity], result of:
              0.06919668 = score(doc=2748,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = 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
  6. Bock, H.-H.: Datenanalyse zur Strukturierung und Ordnung von Information (1989) 0.01
    0.012109418 = product of:
      0.024218837 = sum of:
        0.024218837 = product of:
          0.048437674 = sum of:
            0.048437674 = weight(_text_:22 in 141) [ClassicSimilarity], result of:
              0.048437674 = score(doc=141,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = 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
  7. Dubin, D.: Dimensions and discriminability (1998) 0.01
    0.012109418 = product of:
      0.024218837 = sum of:
        0.024218837 = product of:
          0.048437674 = sum of:
            0.048437674 = weight(_text_:22 in 2338) [ClassicSimilarity], result of:
              0.048437674 = score(doc=2338,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = 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
  8. Automatic classification research at OCLC (2002) 0.01
    0.012109418 = product of:
      0.024218837 = sum of:
        0.024218837 = product of:
          0.048437674 = sum of:
            0.048437674 = weight(_text_:22 in 1563) [ClassicSimilarity], result of:
              0.048437674 = score(doc=1563,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = 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
  9. Jenkins, C.: Automatic classification of Web resources using Java and Dewey Decimal Classification (1998) 0.01
    0.012109418 = product of:
      0.024218837 = sum of:
        0.024218837 = product of:
          0.048437674 = sum of:
            0.048437674 = weight(_text_:22 in 1673) [ClassicSimilarity], result of:
              0.048437674 = score(doc=1673,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = 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
  10. Yoon, Y.; Lee, C.; Lee, G.G.: ¬An effective procedure for constructing a hierarchical text classification system (2006) 0.01
    0.012109418 = product of:
      0.024218837 = sum of:
        0.024218837 = product of:
          0.048437674 = sum of:
            0.048437674 = weight(_text_:22 in 5273) [ClassicSimilarity], result of:
              0.048437674 = score(doc=5273,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = 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
  11. Yi, K.: Automatic text classification using library classification schemes : trends, issues and challenges (2007) 0.01
    0.012109418 = product of:
      0.024218837 = sum of:
        0.024218837 = product of:
          0.048437674 = sum of:
            0.048437674 = weight(_text_:22 in 2560) [ClassicSimilarity], result of:
              0.048437674 = score(doc=2560,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = 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
  12. Liu, R.-L.: Context recognition for hierarchical text classification (2009) 0.01
    0.010379502 = product of:
      0.020759003 = sum of:
        0.020759003 = product of:
          0.041518006 = sum of:
            0.041518006 = weight(_text_:22 in 2760) [ClassicSimilarity], result of:
              0.041518006 = score(doc=2760,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = queryNorm
                0.23214069 = fieldWeight in 2760, 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=2760)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 19:11:54
  13. Pfeffer, M.: Automatische Vergabe von RVK-Notationen mittels fallbasiertem Schließen (2009) 0.01
    0.010379502 = product of:
      0.020759003 = sum of:
        0.020759003 = product of:
          0.041518006 = sum of:
            0.041518006 = weight(_text_:22 in 3051) [ClassicSimilarity], result of:
              0.041518006 = score(doc=3051,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = queryNorm
                0.23214069 = fieldWeight in 3051, 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=3051)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 8.2009 19:51:28
  14. Zhu, W.Z.; Allen, R.B.: Document clustering using the LSI subspace signature model (2013) 0.01
    0.010379502 = product of:
      0.020759003 = sum of:
        0.020759003 = product of:
          0.041518006 = sum of:
            0.041518006 = weight(_text_:22 in 690) [ClassicSimilarity], result of:
              0.041518006 = score(doc=690,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = queryNorm
                0.23214069 = fieldWeight in 690, 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=690)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    23. 3.2013 13:22:36
  15. Egbert, J.; Biber, D.; Davies, M.: Developing a bottom-up, user-based method of web register classification (2015) 0.01
    0.010379502 = product of:
      0.020759003 = sum of:
        0.020759003 = product of:
          0.041518006 = sum of:
            0.041518006 = weight(_text_:22 in 2158) [ClassicSimilarity], result of:
              0.041518006 = score(doc=2158,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = queryNorm
                0.23214069 = fieldWeight in 2158, 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=2158)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    4. 8.2015 19:22:04
  16. Mengle, S.; Goharian, N.: Passage detection using text classification (2009) 0.01
    0.008649585 = product of:
      0.01729917 = sum of:
        0.01729917 = product of:
          0.03459834 = sum of:
            0.03459834 = weight(_text_:22 in 2765) [ClassicSimilarity], result of:
              0.03459834 = score(doc=2765,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = queryNorm
                0.19345059 = fieldWeight in 2765, 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=2765)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 19:14:43
  17. Liu, R.-L.: ¬A passage extractor for classification of disease aspect information (2013) 0.01
    0.008649585 = product of:
      0.01729917 = sum of:
        0.01729917 = product of:
          0.03459834 = sum of:
            0.03459834 = weight(_text_:22 in 1107) [ClassicSimilarity], result of:
              0.03459834 = score(doc=1107,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = 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)
      0.5 = coord(1/2)
    
    Date
    28.10.2013 19:22:57
  18. Khoo, C.S.G.; Ng, K.; Ou, S.: ¬An exploratory study of human clustering of Web pages (2003) 0.01
    0.0069196676 = product of:
      0.013839335 = sum of:
        0.013839335 = product of:
          0.02767867 = sum of:
            0.02767867 = weight(_text_:22 in 2741) [ClassicSimilarity], result of:
              0.02767867 = score(doc=2741,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = queryNorm
                0.15476047 = fieldWeight in 2741, 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=2741)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    12. 9.2004 9:56:22
  19. Reiner, U.: Automatische DDC-Klassifizierung bibliografischer Titeldatensätze der Deutschen Nationalbibliografie (2009) 0.01
    0.0069196676 = product of:
      0.013839335 = sum of:
        0.013839335 = product of:
          0.02767867 = sum of:
            0.02767867 = weight(_text_:22 in 3284) [ClassicSimilarity], result of:
              0.02767867 = score(doc=3284,freq=2.0), product of:
                0.17884846 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051072862 = queryNorm
                0.15476047 = fieldWeight in 3284, 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=3284)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 1.2010 14:41:24