Search (28 results, page 1 of 2)

  • × type_ss:"a"
  • × theme_ss:"Automatisches Klassifizieren"
  1. Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004) 0.07
    0.07161492 = sum of:
      0.053395435 = product of:
        0.21358174 = sum of:
          0.21358174 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
            0.21358174 = score(doc=562,freq=2.0), product of:
              0.3800265 = queryWeight, product of:
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.044824958 = 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)
        0.25 = coord(1/4)
      0.01821949 = product of:
        0.03643898 = sum of:
          0.03643898 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
            0.03643898 = score(doc=562,freq=2.0), product of:
              0.15696937 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.044824958 = 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. Khoo, C.S.G.; Ng, K.; Ou, S.: ¬An exploratory study of human clustering of Web pages (2003) 0.03
    0.034995675 = product of:
      0.06999135 = sum of:
        0.06999135 = sum of:
          0.0456987 = weight(_text_:2003 in 2741) [ClassicSimilarity], result of:
            0.0456987 = score(doc=2741,freq=3.0), product of:
              0.19453894 = queryWeight, product of:
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.044824958 = queryNorm
              0.23490772 = fieldWeight in 2741, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.03125 = fieldNorm(doc=2741)
          0.024292652 = weight(_text_:22 in 2741) [ClassicSimilarity], result of:
            0.024292652 = score(doc=2741,freq=2.0), product of:
              0.15696937 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.044824958 = 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)
    
    Date
    12. 9.2004 9:56:22
    Year
    2003
  3. Brückner, T.; Dambeck, H.: Sortierautomaten : Grundlagen der Textklassifizierung (2003) 0.03
    0.029498382 = product of:
      0.058996763 = sum of:
        0.058996763 = product of:
          0.117993526 = sum of:
            0.117993526 = weight(_text_:2003 in 2398) [ClassicSimilarity], result of:
              0.117993526 = score(doc=2398,freq=5.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.6065291 = fieldWeight in 2398, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2398)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    c't. 2003, H.19, S.192-197
    Year
    2003
  4. Lindholm, J.; Schönthal, T.; Jansson , K.: Experiences of harvesting Web resources in engineering using automatic classification (2003) 0.03
    0.029498382 = product of:
      0.058996763 = sum of:
        0.058996763 = product of:
          0.117993526 = sum of:
            0.117993526 = weight(_text_:2003 in 4088) [ClassicSimilarity], result of:
              0.117993526 = score(doc=4088,freq=5.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.6065291 = fieldWeight in 4088, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4088)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Ariadne magazine. 2003, no.37
    Year
    2003
  5. Miyamoto, S.: Information clustering based an fuzzy multisets (2003) 0.03
    0.025811084 = product of:
      0.051622167 = sum of:
        0.051622167 = product of:
          0.103244334 = sum of:
            0.103244334 = weight(_text_:2003 in 1071) [ClassicSimilarity], result of:
              0.103244334 = score(doc=1071,freq=5.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.53071296 = fieldWeight in 1071, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1071)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 39(2003) no.2, S.195-213
    Year
    2003
  6. Drori, O.; Alon, N.: Using document classification for displaying search results (2003) 0.02
    0.022123788 = product of:
      0.044247575 = sum of:
        0.044247575 = product of:
          0.08849515 = sum of:
            0.08849515 = weight(_text_:2003 in 1565) [ClassicSimilarity], result of:
              0.08849515 = score(doc=1565,freq=5.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.45489684 = fieldWeight in 1565, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1565)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of information science. 29(2003) no.2, S.97-106
    Year
    2003
  7. Chung, Y.-M.; Noh, Y.-H.: Developing a specialized directory system by automatically classifying Web documents (2003) 0.02
    0.022123788 = product of:
      0.044247575 = sum of:
        0.044247575 = product of:
          0.08849515 = sum of:
            0.08849515 = weight(_text_:2003 in 1566) [ClassicSimilarity], result of:
              0.08849515 = score(doc=1566,freq=5.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.45489684 = fieldWeight in 1566, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1566)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of information science. 29(2003) no.2, S.117-126
    Year
    2003
  8. Mukhopadhyay, S.; Peng, S.; Raje, R.; Palakal, M.; Mostafa, J.: Multi-agent information classification using dynamic acquaintance lists (2003) 0.02
    0.022123788 = product of:
      0.044247575 = sum of:
        0.044247575 = product of:
          0.08849515 = sum of:
            0.08849515 = weight(_text_:2003 in 1755) [ClassicSimilarity], result of:
              0.08849515 = score(doc=1755,freq=5.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.45489684 = fieldWeight in 1755, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1755)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.10, S.966-975
    Year
    2003
  9. Sun, A.; Lim, E.-P.; Ng, W.-K.: Performance measurement framework for hierarchical text classification (2003) 0.02
    0.022123788 = product of:
      0.044247575 = sum of:
        0.044247575 = product of:
          0.08849515 = sum of:
            0.08849515 = weight(_text_:2003 in 1808) [ClassicSimilarity], result of:
              0.08849515 = score(doc=1808,freq=5.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.45489684 = fieldWeight in 1808, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1808)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.11, S.1014-1028
    Year
    2003
  10. Godby, C.J.; Stuler, J.: ¬The Library of Congress Classification as a knowledge base for automatic subject categorization : subject access issues (2003) 0.02
    0.01999318 = product of:
      0.03998636 = sum of:
        0.03998636 = product of:
          0.07997272 = sum of:
            0.07997272 = weight(_text_:2003 in 3962) [ClassicSimilarity], result of:
              0.07997272 = score(doc=3962,freq=3.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.4110885 = fieldWeight in 3962, product of:
                  1.7320508 = tf(freq=3.0), with freq of:
                    3.0 = termFreq=3.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3962)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Year
    2003
  11. Giorgetti, D.; Sebastiani, F.: Automating survey coding by multiclass text categorization techniques (2003) 0.02
    0.01843649 = product of:
      0.03687298 = sum of:
        0.03687298 = product of:
          0.07374596 = sum of:
            0.07374596 = weight(_text_:2003 in 5172) [ClassicSimilarity], result of:
              0.07374596 = score(doc=5172,freq=5.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.3790807 = fieldWeight in 5172, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5172)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.14, S.1269-1277
    Year
    2003
  12. Kwon, O.W.; Lee, J.H.: Text categorization based on k-nearest neighbor approach for web site classification (2003) 0.02
    0.01843649 = product of:
      0.03687298 = sum of:
        0.03687298 = product of:
          0.07374596 = sum of:
            0.07374596 = weight(_text_:2003 in 1070) [ClassicSimilarity], result of:
              0.07374596 = score(doc=1070,freq=5.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.3790807 = fieldWeight in 1070, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1070)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 39(2003) no.1, S.25-44
    Year
    2003
  13. Subramanian, S.; Shafer, K.E.: Clustering (2001) 0.02
    0.01821949 = product of:
      0.03643898 = sum of:
        0.03643898 = product of:
          0.07287796 = sum of:
            0.07287796 = weight(_text_:22 in 1046) [ClassicSimilarity], result of:
              0.07287796 = score(doc=1046,freq=2.0), product of:
                0.15696937 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044824958 = 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
  14. HaCohen-Kerner, Y. et al.: Classification using various machine learning methods and combinations of key-phrases and visual features (2016) 0.02
    0.015182908 = product of:
      0.030365815 = sum of:
        0.030365815 = product of:
          0.06073163 = sum of:
            0.06073163 = weight(_text_:22 in 2748) [ClassicSimilarity], result of:
              0.06073163 = score(doc=2748,freq=2.0), product of:
                0.15696937 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044824958 = 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
  15. Zhou, G.D.; Zhang, M.; Ji, D.H.; Zhu, Q.M.: Hierarchical learning strategy in semantic relation extraction (2008) 0.01
    0.013992311 = product of:
      0.027984623 = sum of:
        0.027984623 = product of:
          0.055969246 = sum of:
            0.055969246 = weight(_text_:2003 in 2077) [ClassicSimilarity], result of:
              0.055969246 = score(doc=2077,freq=2.0), product of:
                0.19453894 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.044824958 = queryNorm
                0.28770202 = fieldWeight in 2077, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2077)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    This paper proposes a novel hierarchical learning strategy to deal with the data sparseness problem in semantic relation extraction by modeling the commonality among related classes. For each class in the hierarchy either manually predefined or automatically clustered, a discriminative function is determined in a top-down way. As the upper-level class normally has much more positive training examples than the lower-level class, the corresponding discriminative function can be determined more reliably and guide the discriminative function learning in the lower-level one more effectively, which otherwise might suffer from limited training data. In this paper, two classifier learning approaches, i.e. the simple perceptron algorithm and the state-of-the-art Support Vector Machines, are applied using the hierarchical learning strategy. Moreover, several kinds of class hierarchies either manually predefined or automatically clustered are explored and compared. Evaluation on the ACE RDC 2003 and 2004 corpora shows that the hierarchical learning strategy much improves the performance on least- and medium-frequent relations.
  16. Bock, H.-H.: Datenanalyse zur Strukturierung und Ordnung von Information (1989) 0.01
    0.010628035 = product of:
      0.02125607 = sum of:
        0.02125607 = product of:
          0.04251214 = sum of:
            0.04251214 = weight(_text_:22 in 141) [ClassicSimilarity], result of:
              0.04251214 = score(doc=141,freq=2.0), product of:
                0.15696937 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044824958 = 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
  17. Dubin, D.: Dimensions and discriminability (1998) 0.01
    0.010628035 = product of:
      0.02125607 = sum of:
        0.02125607 = product of:
          0.04251214 = sum of:
            0.04251214 = weight(_text_:22 in 2338) [ClassicSimilarity], result of:
              0.04251214 = score(doc=2338,freq=2.0), product of:
                0.15696937 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044824958 = 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
  18. Jenkins, C.: Automatic classification of Web resources using Java and Dewey Decimal Classification (1998) 0.01
    0.010628035 = product of:
      0.02125607 = sum of:
        0.02125607 = product of:
          0.04251214 = sum of:
            0.04251214 = weight(_text_:22 in 1673) [ClassicSimilarity], result of:
              0.04251214 = score(doc=1673,freq=2.0), product of:
                0.15696937 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044824958 = 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
    0.010628035 = product of:
      0.02125607 = sum of:
        0.02125607 = product of:
          0.04251214 = sum of:
            0.04251214 = weight(_text_:22 in 5273) [ClassicSimilarity], result of:
              0.04251214 = score(doc=5273,freq=2.0), product of:
                0.15696937 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044824958 = 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
    0.010628035 = product of:
      0.02125607 = sum of:
        0.02125607 = product of:
          0.04251214 = sum of:
            0.04251214 = weight(_text_:22 in 2560) [ClassicSimilarity], result of:
              0.04251214 = score(doc=2560,freq=2.0), product of:
                0.15696937 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044824958 = 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