Search (11 results, page 1 of 1)

Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004) 0.10

0.10025631 = sum of:
  0.0798274 = product of:
    0.23948218 = sum of:
      0.23948218 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
        0.23948218 = score(doc=562,freq=2.0), product of:
          0.4261112 = queryWeight, product of:
            8.478011 = idf(docFreq=24, maxDocs=44218)
            0.05026075 = 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)
  0.02042891 = product of:
    0.04085782 = sum of:
      0.04085782 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
        0.04085782 = score(doc=562,freq=2.0), product of:
          0.17600457 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05026075 = 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

Reiner, U.: Automatische DDC-Klassifizierung bibliografischer Titeldatensätze der Deutschen Nationalbibliografie (2009) 0.06
```
0.055918865 = product of:
  0.11183773 = sum of:
    0.11183773 = sum of:
      0.08459918 = weight(_text_:plus in 3284) [ClassicSimilarity], result of:
        0.08459918 = score(doc=3284,freq=2.0), product of:
          0.3101809 = queryWeight, product of:
            6.1714344 = idf(docFreq=250, maxDocs=44218)
            0.05026075 = queryNorm
          0.27274144 = fieldWeight in 3284, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.1714344 = idf(docFreq=250, maxDocs=44218)
            0.03125 = fieldNorm(doc=3284)
      0.02723855 = weight(_text_:22 in 3284) [ClassicSimilarity], result of:
        0.02723855 = score(doc=3284,freq=2.0), product of:
          0.17600457 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05026075 = 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)
```
Abstract

Die Menge der zu klassifizierenden Veröffentlichungen steigt spätestens seit der Existenz des World Wide Web schneller an, als sie intellektuell sachlich erschlossen werden kann. Daher werden Verfahren gesucht, um die Klassifizierung von Textobjekten zu automatisieren oder die intellektuelle Klassifizierung zumindest zu unterstützen. Seit 1968 gibt es Verfahren zur automatischen Dokumentenklassifizierung (Information Retrieval, kurz: IR) und seit 1992 zur automatischen Textklassifizierung (ATC: Automated Text Categorization). Seit immer mehr digitale Objekte im World Wide Web zur Verfügung stehen, haben Arbeiten zur automatischen Textklassifizierung seit ca. 1998 verstärkt zugenommen. Dazu gehören seit 1996 auch Arbeiten zur automatischen DDC-Klassifizierung bzw. RVK-Klassifizierung von bibliografischen Titeldatensätzen und Volltextdokumenten. Bei den Entwicklungen handelt es sich unseres Wissens bislang um experimentelle und keine im ständigen Betrieb befindlichen Systeme. Auch das VZG-Projekt Colibri/DDC ist seit 2006 u. a. mit der automatischen DDC-Klassifizierung befasst. Die diesbezüglichen Untersuchungen und Entwicklungen dienen zur Beantwortung der Forschungsfrage: "Ist es möglich, eine inhaltlich stimmige DDC-Titelklassifikation aller GVK-PLUS-Titeldatensätze automatisch zu erzielen?"

Date

22. 1.2010 14:41:24

Subramanian, S.; Shafer, K.E.: Clustering (2001) 0.02

0.02042891 = product of:
  0.04085782 = sum of:
    0.04085782 = product of:
      0.08171564 = sum of:
        0.08171564 = weight(_text_:22 in 1046) [ClassicSimilarity], result of:
          0.08171564 = score(doc=1046,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = 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

Reiner, U.: Automatische DDC-Klassifizierung von bibliografischen Titeldatensätzen (2009) 0.02

0.017024094 = product of:
  0.03404819 = sum of:
    0.03404819 = product of:
      0.06809638 = sum of:
        0.06809638 = weight(_text_:22 in 611) [ClassicSimilarity], result of:
          0.06809638 = score(doc=611,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = 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

Automatic classification research at OCLC (2002) 0.01

0.011916866 = product of:
  0.023833731 = sum of:
    0.023833731 = product of:
      0.047667462 = sum of:
        0.047667462 = weight(_text_:22 in 1563) [ClassicSimilarity], result of:
          0.047667462 = score(doc=1563,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = 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

Yoon, Y.; Lee, C.; Lee, G.G.: ¬An effective procedure for constructing a hierarchical text classification system (2006) 0.01

0.011916866 = product of:
  0.023833731 = sum of:
    0.023833731 = product of:
      0.047667462 = sum of:
        0.047667462 = weight(_text_:22 in 5273) [ClassicSimilarity], result of:
          0.047667462 = score(doc=5273,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = 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

Yi, K.: Automatic text classification using library classification schemes : trends, issues and challenges (2007) 0.01

0.011916866 = product of:
  0.023833731 = sum of:
    0.023833731 = product of:
      0.047667462 = sum of:
        0.047667462 = weight(_text_:22 in 2560) [ClassicSimilarity], result of:
          0.047667462 = score(doc=2560,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = 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

Liu, R.-L.: Context recognition for hierarchical text classification (2009) 0.01

0.010214455 = product of:
  0.02042891 = sum of:
    0.02042891 = product of:
      0.04085782 = sum of:
        0.04085782 = weight(_text_:22 in 2760) [ClassicSimilarity], result of:
          0.04085782 = score(doc=2760,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = 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

Pfeffer, M.: Automatische Vergabe von RVK-Notationen mittels fallbasiertem Schließen (2009) 0.01

0.010214455 = product of:
  0.02042891 = sum of:
    0.02042891 = product of:
      0.04085782 = sum of:
        0.04085782 = weight(_text_:22 in 3051) [ClassicSimilarity], result of:
          0.04085782 = score(doc=3051,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = 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

Mengle, S.; Goharian, N.: Passage detection using text classification (2009) 0.01

0.008512047 = product of:
  0.017024094 = sum of:
    0.017024094 = product of:
      0.03404819 = sum of:
        0.03404819 = weight(_text_:22 in 2765) [ClassicSimilarity], result of:
          0.03404819 = score(doc=2765,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = 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

Khoo, C.S.G.; Ng, K.; Ou, S.: ¬An exploratory study of human clustering of Web pages (2003) 0.01

0.0068096374 = product of:
  0.013619275 = sum of:
    0.013619275 = product of:
      0.02723855 = sum of:
        0.02723855 = weight(_text_:22 in 2741) [ClassicSimilarity], result of:
          0.02723855 = score(doc=2741,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = 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

Search (11 results, page 1 of 1)

Authors

Languages

Types

Themes