Search (16 results, page 1 of 1)

  • × language_ss:"e"
  • × theme_ss:"Data Mining"
  1. Survey of text mining : clustering, classification, and retrieval (2004) 0.02
    0.016752658 = product of:
      0.06701063 = sum of:
        0.06701063 = product of:
          0.13402127 = sum of:
            0.13402127 = weight(_text_:intelligenz in 804) [ClassicSimilarity], result of:
              0.13402127 = score(doc=804,freq=8.0), product of:
                0.21362439 = queryWeight, product of:
                  5.678294 = idf(docFreq=410, maxDocs=44218)
                  0.037621226 = queryNorm
                0.62736875 = fieldWeight in 804, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  5.678294 = idf(docFreq=410, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=804)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    BK
    54.72 / Künstliche Intelligenz
    Classification
    ST 302 Informatik / Monographien / Künstliche Intelligenz / Expertensysteme; Wissensbasierte Systeme
    54.72 / Künstliche Intelligenz
    RVK
    ST 302 Informatik / Monographien / Künstliche Intelligenz / Expertensysteme; Wissensbasierte Systeme
  2. Information visualization in data mining and knowledge discovery (2002) 0.01
    0.012025313 = product of:
      0.048101254 = sum of:
        0.048101254 = sum of:
          0.03790694 = weight(_text_:intelligenz in 1789) [ClassicSimilarity], result of:
            0.03790694 = score(doc=1789,freq=4.0), product of:
              0.21362439 = queryWeight, product of:
                5.678294 = idf(docFreq=410, maxDocs=44218)
                0.037621226 = queryNorm
              0.1774467 = fieldWeight in 1789, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.678294 = idf(docFreq=410, maxDocs=44218)
                0.015625 = fieldNorm(doc=1789)
          0.010194313 = weight(_text_:22 in 1789) [ClassicSimilarity], result of:
            0.010194313 = score(doc=1789,freq=2.0), product of:
              0.13174312 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.037621226 = queryNorm
              0.07738023 = fieldWeight in 1789, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.015625 = fieldNorm(doc=1789)
      0.25 = coord(1/4)
    
    BK
    54.72 / Künstliche Intelligenz
    Classification
    54.72 / Künstliche Intelligenz
    Date
    23. 3.2008 19:10:22
  3. Chowdhury, G.G.: Template mining for information extraction from digital documents (1999) 0.01
    0.008920024 = product of:
      0.035680097 = sum of:
        0.035680097 = product of:
          0.07136019 = sum of:
            0.07136019 = weight(_text_:22 in 4577) [ClassicSimilarity], result of:
              0.07136019 = score(doc=4577,freq=2.0), product of:
                0.13174312 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037621226 = queryNorm
                0.5416616 = fieldWeight in 4577, 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=4577)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    2. 4.2000 18:01:22
  4. KDD : techniques and applications (1998) 0.01
    0.0076457346 = product of:
      0.030582938 = sum of:
        0.030582938 = product of:
          0.061165877 = sum of:
            0.061165877 = weight(_text_:22 in 6783) [ClassicSimilarity], result of:
              0.061165877 = score(doc=6783,freq=2.0), product of:
                0.13174312 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037621226 = queryNorm
                0.46428138 = fieldWeight in 6783, 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=6783)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Footnote
    A special issue of selected papers from the Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD'97), held Singapore, 22-23 Feb 1997
  5. Matson, L.D.; Bonski, D.J.: Do digital libraries need librarians? (1997) 0.01
    0.0050971564 = product of:
      0.020388626 = sum of:
        0.020388626 = product of:
          0.04077725 = sum of:
            0.04077725 = weight(_text_:22 in 1737) [ClassicSimilarity], result of:
              0.04077725 = score(doc=1737,freq=2.0), product of:
                0.13174312 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037621226 = queryNorm
                0.30952093 = fieldWeight in 1737, 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=1737)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    22.11.1998 18:57:22
  6. Amir, A.; Feldman, R.; Kashi, R.: ¬A new and versatile method for association generation (1997) 0.01
    0.0050971564 = product of:
      0.020388626 = sum of:
        0.020388626 = product of:
          0.04077725 = sum of:
            0.04077725 = weight(_text_:22 in 1270) [ClassicSimilarity], result of:
              0.04077725 = score(doc=1270,freq=2.0), product of:
                0.13174312 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037621226 = queryNorm
                0.30952093 = fieldWeight in 1270, 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=1270)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Information systems. 22(1997) nos.5/6, S.333-347
  7. Hofstede, A.H.M. ter; Proper, H.A.; Van der Weide, T.P.: Exploiting fact verbalisation in conceptual information modelling (1997) 0.00
    0.004460012 = product of:
      0.017840048 = sum of:
        0.017840048 = product of:
          0.035680097 = sum of:
            0.035680097 = weight(_text_:22 in 2908) [ClassicSimilarity], result of:
              0.035680097 = score(doc=2908,freq=2.0), product of:
                0.13174312 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037621226 = queryNorm
                0.2708308 = fieldWeight in 2908, 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=2908)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Information systems. 22(1997) nos.5/6, S.349-385
  8. Hallonsten, O.; Holmberg, D.: Analyzing structural stratification in the Swedish higher education system : data contextualization with policy-history analysis (2013) 0.00
    0.003185723 = product of:
      0.012742892 = sum of:
        0.012742892 = product of:
          0.025485784 = sum of:
            0.025485784 = weight(_text_:22 in 668) [ClassicSimilarity], result of:
              0.025485784 = score(doc=668,freq=2.0), product of:
                0.13174312 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037621226 = queryNorm
                0.19345059 = fieldWeight in 668, 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=668)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    22. 3.2013 19:43:01
  9. Vaughan, L.; Chen, Y.: Data mining from web search queries : a comparison of Google trends and Baidu index (2015) 0.00
    0.003185723 = product of:
      0.012742892 = sum of:
        0.012742892 = product of:
          0.025485784 = sum of:
            0.025485784 = weight(_text_:22 in 1605) [ClassicSimilarity], result of:
              0.025485784 = score(doc=1605,freq=2.0), product of:
                0.13174312 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037621226 = queryNorm
                0.19345059 = fieldWeight in 1605, 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=1605)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Journal of the Association for Information Science and Technology. 66(2015) no.1, S.13-22
  10. Fonseca, F.; Marcinkowski, M.; Davis, C.: Cyber-human systems of thought and understanding (2019) 0.00
    0.003185723 = product of:
      0.012742892 = sum of:
        0.012742892 = product of:
          0.025485784 = sum of:
            0.025485784 = weight(_text_:22 in 5011) [ClassicSimilarity], result of:
              0.025485784 = score(doc=5011,freq=2.0), product of:
                0.13174312 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037621226 = queryNorm
                0.19345059 = fieldWeight in 5011, 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=5011)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    7. 3.2019 16:32:22
  11. Ohly, H.P.: Bibliometric mining : added value from document analysis and retrieval (2008) 0.00
    0.0026484418 = product of:
      0.010593767 = sum of:
        0.010593767 = product of:
          0.0317813 = sum of:
            0.0317813 = weight(_text_:k in 2386) [ClassicSimilarity], result of:
              0.0317813 = score(doc=2386,freq=2.0), product of:
                0.13429943 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.037621226 = queryNorm
                0.23664509 = fieldWeight in 2386, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2386)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
    Source
    Kompatibilität, Medien und Ethik in der Wissensorganisation - Compatibility, Media and Ethics in Knowledge Organization: Proceedings der 10. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation Wien, 3.-5. Juli 2006 - Proceedings of the 10th Conference of the German Section of the International Society of Knowledge Organization Vienna, 3-5 July 2006. Ed.: H.P. Ohly, S. Netscher u. K. Mitgutsch
  12. Dang, X.H.; Ong. K.-L.: Knowledge discovery in data streams (2009) 0.00
    0.0026484418 = product of:
      0.010593767 = sum of:
        0.010593767 = product of:
          0.0317813 = sum of:
            0.0317813 = weight(_text_:k in 3829) [ClassicSimilarity], result of:
              0.0317813 = score(doc=3829,freq=2.0), product of:
                0.13429943 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.037621226 = queryNorm
                0.23664509 = fieldWeight in 3829, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3829)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
  13. Song, J.; Huang, Y.; Qi, X.; Li, Y.; Li, F.; Fu, K.; Huang, T.: Discovering hierarchical topic evolution in time-stamped documents (2016) 0.00
    0.0026484418 = product of:
      0.010593767 = sum of:
        0.010593767 = product of:
          0.0317813 = sum of:
            0.0317813 = weight(_text_:k in 2853) [ClassicSimilarity], result of:
              0.0317813 = score(doc=2853,freq=2.0), product of:
                0.13429943 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.037621226 = queryNorm
                0.23664509 = fieldWeight in 2853, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2853)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
  14. Kantardzic, M.: Data mining : concepts, models, methods, and algorithms (2003) 0.00
    0.0024969748 = product of:
      0.009987899 = sum of:
        0.009987899 = product of:
          0.029963696 = sum of:
            0.029963696 = weight(_text_:k in 2291) [ClassicSimilarity], result of:
              0.029963696 = score(doc=2291,freq=4.0), product of:
                0.13429943 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.037621226 = queryNorm
                0.22311112 = fieldWeight in 2291, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.03125 = fieldNorm(doc=2291)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
    Classification
    PZY (FH K)
    GHBS
    PZY (FH K)
  15. Liu, B.: Web data mining : exploring hyperlinks, contents, and usage data (2011) 0.00
    0.0024969748 = product of:
      0.009987899 = sum of:
        0.009987899 = product of:
          0.029963696 = sum of:
            0.029963696 = weight(_text_:k in 354) [ClassicSimilarity], result of:
              0.029963696 = score(doc=354,freq=4.0), product of:
                0.13429943 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.037621226 = queryNorm
                0.22311112 = fieldWeight in 354, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.03125 = fieldNorm(doc=354)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
    Classification
    TZG (FH K)
    GHBS
    TZG (FH K)
  16. Ma, Z.; Sun, A.; Cong, G.: On predicting the popularity of newly emerging hashtags in Twitter (2013) 0.00
    0.0022070347 = product of:
      0.008828139 = sum of:
        0.008828139 = product of:
          0.026484415 = sum of:
            0.026484415 = weight(_text_:k in 967) [ClassicSimilarity], result of:
              0.026484415 = score(doc=967,freq=2.0), product of:
                0.13429943 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.037621226 = queryNorm
                0.19720423 = fieldWeight in 967, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=967)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
    Abstract
    Because of Twitter's popularity and the viral nature of information dissemination on Twitter, predicting which Twitter topics will become popular in the near future becomes a task of considerable economic importance. Many Twitter topics are annotated by hashtags. In this article, we propose methods to predict the popularity of new hashtags on Twitter by formulating the problem as a classification task. We use five standard classification models (i.e., Naïve bayes, k-nearest neighbors, decision trees, support vector machines, and logistic regression) for prediction. The main challenge is the identification of effective features for describing new hashtags. We extract 7 content features from a hashtag string and the collection of tweets containing the hashtag and 11 contextual features from the social graph formed by users who have adopted the hashtag. We conducted experiments on a Twitter data set consisting of 31 million tweets from 2 million Singapore-based users. The experimental results show that the standard classifiers using the extracted features significantly outperform the baseline methods that do not use these features. Among the five classifiers, the logistic regression model performs the best in terms of the Micro-F1 measure. We also observe that contextual features are more effective than content features.

Types