Search (17 results, page 1 of 1)

  • × theme_ss:"Data Mining"
  • × year_i:[2010 TO 2020}
  1. Huvila, I.: Mining qualitative data on human information behaviour from the Web (2010) 0.03
    0.026081134 = product of:
      0.06520283 = sum of:
        0.03162189 = weight(_text_:j in 4676) [ClassicSimilarity], result of:
          0.03162189 = score(doc=4676,freq=2.0), product of:
            0.12867662 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.04049623 = queryNorm
            0.24574696 = fieldWeight in 4676, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4676)
        0.03358094 = weight(_text_:u in 4676) [ClassicSimilarity], result of:
          0.03358094 = score(doc=4676,freq=2.0), product of:
            0.13260265 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.04049623 = queryNorm
            0.25324488 = fieldWeight in 4676, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4676)
      0.4 = coord(2/5)
    
    Source
    Information und Wissen: global, sozial und frei? Proceedings des 12. Internationalen Symposiums für Informationswissenschaft (ISI 2011) ; Hildesheim, 9. - 11. März 2011. Hrsg.: J. Griesbaum, T. Mandl u. C. Womser-Hacker
  2. Wongthontham, P.; Abu-Salih, B.: Ontology-based approach for semantic data extraction from social big data : state-of-the-art and research directions (2018) 0.02
    0.024992658 = product of:
      0.06248164 = sum of:
        0.028783662 = weight(_text_:u in 4097) [ClassicSimilarity], result of:
          0.028783662 = score(doc=4097,freq=2.0), product of:
            0.13260265 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.04049623 = queryNorm
            0.21706703 = fieldWeight in 4097, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.046875 = fieldNorm(doc=4097)
        0.033697978 = weight(_text_:b in 4097) [ClassicSimilarity], result of:
          0.033697978 = score(doc=4097,freq=2.0), product of:
            0.1434766 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.04049623 = queryNorm
            0.23486741 = fieldWeight in 4097, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=4097)
      0.4 = coord(2/5)
    
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  3. Mandl, T.: Text mining und data minig (2013) 0.01
    0.009594555 = product of:
      0.047972776 = sum of:
        0.047972776 = weight(_text_:u in 713) [ClassicSimilarity], result of:
          0.047972776 = score(doc=713,freq=2.0), product of:
            0.13260265 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.04049623 = queryNorm
            0.3617784 = fieldWeight in 713, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.078125 = fieldNorm(doc=713)
      0.2 = coord(1/5)
    
    Source
    Grundlagen der praktischen Information und Dokumentation. Handbuch zur Einführung in die Informationswissenschaft und -praxis. 6., völlig neu gefaßte Ausgabe. Hrsg. von R. Kuhlen, W. Semar u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried
  4. Berendt, B.; Krause, B.; Kolbe-Nusser, S.: Intelligent scientific authoring tools : interactive data mining for constructive uses of citation networks (2010) 0.01
    0.009531229 = product of:
      0.04765614 = sum of:
        0.04765614 = weight(_text_:b in 4226) [ClassicSimilarity], result of:
          0.04765614 = score(doc=4226,freq=4.0), product of:
            0.1434766 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.04049623 = queryNorm
            0.3321527 = fieldWeight in 4226, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=4226)
      0.2 = coord(1/5)
    
  5. Chardonnens, A.; Hengchen, S.: Text mining for cultural heritage institutions : a 5-step method for cultural heritage institutions (2017) 0.01
    0.007675644 = product of:
      0.03837822 = sum of:
        0.03837822 = weight(_text_:u in 646) [ClassicSimilarity], result of:
          0.03837822 = score(doc=646,freq=2.0), product of:
            0.13260265 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.04049623 = queryNorm
            0.28942272 = fieldWeight in 646, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.0625 = fieldNorm(doc=646)
      0.2 = coord(1/5)
    
    Source
    Everything changes, everything stays the same? - Understanding information spaces : Proceedings of the 15th International Symposium of Information Science (ISI 2017), Berlin/Germany, 13th - 15th March 2017. Eds.: M. Gäde, V. Trkulja u. V. Petras
  6. Berry, M.W.; Esau, R.; Kiefer, B.: ¬The use of text mining techniques in electronic discovery for legal matters (2012) 0.01
    0.0067395954 = product of:
      0.033697978 = sum of:
        0.033697978 = weight(_text_:b in 91) [ClassicSimilarity], result of:
          0.033697978 = score(doc=91,freq=2.0), product of:
            0.1434766 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.04049623 = queryNorm
            0.23486741 = fieldWeight in 91, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=91)
      0.2 = coord(1/5)
    
  7. Qiu, X.Y.; Srinivasan, P.; Hu, Y.: Supervised learning models to predict firm performance with annual reports : an empirical study (2014) 0.01
    0.0067395954 = product of:
      0.033697978 = sum of:
        0.033697978 = weight(_text_:b in 1205) [ClassicSimilarity], result of:
          0.033697978 = score(doc=1205,freq=2.0), product of:
            0.1434766 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.04049623 = queryNorm
            0.23486741 = fieldWeight in 1205, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=1205)
      0.2 = coord(1/5)
    
    Abstract
    Text mining and machine learning methodologies have been applied toward knowledge discovery in several domains, such as biomedicine and business. Interestingly, in the business domain, the text mining and machine learning community has minimally explored company annual reports with their mandatory disclosures. In this study, we explore the question "How can annual reports be used to predict change in company performance from one year to the next?" from a text mining perspective. Our article contributes a systematic study of the potential of company mandatory disclosures using a computational viewpoint in the following aspects: (a) We characterize our research problem along distinct dimensions to gain a reasonably comprehensive understanding of the capacity of supervised learning methods in predicting change in company performance using annual reports, and (b) our findings from unbiased systematic experiments provide further evidence about the economic incentives faced by analysts in their stock recommendations and speculations on analysts having access to more information in producing earnings forecast.
  8. Drees, B.: Text und data mining : Herausforderungen und Möglichkeiten für Bibliotheken (2016) 0.01
    0.0067395954 = product of:
      0.033697978 = sum of:
        0.033697978 = weight(_text_:b in 3952) [ClassicSimilarity], result of:
          0.033697978 = score(doc=3952,freq=2.0), product of:
            0.1434766 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.04049623 = queryNorm
            0.23486741 = fieldWeight in 3952, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=3952)
      0.2 = coord(1/5)
    
  9. Li, D.; Tang, J.; Ding, Y.; Shuai, X.; Chambers, T.; Sun, G.; Luo, Z.; Zhang, J.: Topic-level opinion influence model (TOIM) : an investigation using tencent microblogging (2015) 0.01
    0.006388586 = product of:
      0.03194293 = sum of:
        0.03194293 = weight(_text_:j in 2345) [ClassicSimilarity], result of:
          0.03194293 = score(doc=2345,freq=4.0), product of:
            0.12867662 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.04049623 = queryNorm
            0.2482419 = fieldWeight in 2345, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2345)
      0.2 = coord(1/5)
    
  10. Song, J.; Huang, Y.; Qi, X.; Li, Y.; Li, F.; Fu, K.; Huang, T.: Discovering hierarchical topic evolution in time-stamped documents (2016) 0.01
    0.0054208953 = product of:
      0.027104476 = sum of:
        0.027104476 = weight(_text_:j in 2853) [ClassicSimilarity], result of:
          0.027104476 = score(doc=2853,freq=2.0), product of:
            0.12867662 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.04049623 = queryNorm
            0.21064025 = fieldWeight in 2853, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.046875 = fieldNorm(doc=2853)
      0.2 = coord(1/5)
    
  11. Gill, A.J.; Hinrichs-Krapels, S.; Blanke, T.; Grant, J.; Hedges, M.; Tanner, S.: Insight workflow : systematically combining human and computational methods to explore textual data (2017) 0.00
    0.0045174127 = product of:
      0.022587063 = sum of:
        0.022587063 = weight(_text_:j in 3682) [ClassicSimilarity], result of:
          0.022587063 = score(doc=3682,freq=2.0), product of:
            0.12867662 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.04049623 = queryNorm
            0.17553353 = fieldWeight in 3682, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3682)
      0.2 = coord(1/5)
    
  12. Liu, B.: Web data mining : exploring hyperlinks, contents, and usage data (2011) 0.00
    0.004493064 = product of:
      0.022465318 = sum of:
        0.022465318 = weight(_text_:b in 354) [ClassicSimilarity], result of:
          0.022465318 = score(doc=354,freq=2.0), product of:
            0.1434766 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.04049623 = queryNorm
            0.15657827 = fieldWeight in 354, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.03125 = fieldNorm(doc=354)
      0.2 = coord(1/5)
    
  13. Mining text data (2012) 0.00
    0.003837822 = product of:
      0.01918911 = sum of:
        0.01918911 = weight(_text_:u in 362) [ClassicSimilarity], result of:
          0.01918911 = score(doc=362,freq=2.0), product of:
            0.13260265 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.04049623 = queryNorm
            0.14471136 = fieldWeight in 362, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03125 = fieldNorm(doc=362)
      0.2 = coord(1/5)
    
    Editor
    Aggarwal, C.C. u. C.X. Zhai
  14. Hallonsten, O.; Holmberg, D.: Analyzing structural stratification in the Swedish higher education system : data contextualization with policy-history analysis (2013) 0.00
    0.00274334 = product of:
      0.0137167005 = sum of:
        0.0137167005 = product of:
          0.027433401 = sum of:
            0.027433401 = weight(_text_:22 in 668) [ClassicSimilarity], result of:
              0.027433401 = score(doc=668,freq=2.0), product of:
                0.1418109 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04049623 = 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)
      0.2 = coord(1/5)
    
    Date
    22. 3.2013 19:43:01
  15. Vaughan, L.; Chen, Y.: Data mining from web search queries : a comparison of Google trends and Baidu index (2015) 0.00
    0.00274334 = product of:
      0.0137167005 = sum of:
        0.0137167005 = product of:
          0.027433401 = sum of:
            0.027433401 = weight(_text_:22 in 1605) [ClassicSimilarity], result of:
              0.027433401 = score(doc=1605,freq=2.0), product of:
                0.1418109 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04049623 = 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)
      0.2 = coord(1/5)
    
    Source
    Journal of the Association for Information Science and Technology. 66(2015) no.1, S.13-22
  16. Fonseca, F.; Marcinkowski, M.; Davis, C.: Cyber-human systems of thought and understanding (2019) 0.00
    0.00274334 = product of:
      0.0137167005 = sum of:
        0.0137167005 = product of:
          0.027433401 = sum of:
            0.027433401 = weight(_text_:22 in 5011) [ClassicSimilarity], result of:
              0.027433401 = score(doc=5011,freq=2.0), product of:
                0.1418109 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04049623 = 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)
      0.2 = coord(1/5)
    
    Date
    7. 3.2019 16:32:22
  17. Jäger, L.: Von Big Data zu Big Brother (2018) 0.00
    0.0021946721 = product of:
      0.01097336 = sum of:
        0.01097336 = product of:
          0.02194672 = sum of:
            0.02194672 = weight(_text_:22 in 5234) [ClassicSimilarity], result of:
              0.02194672 = score(doc=5234,freq=2.0), product of:
                0.1418109 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04049623 = queryNorm
                0.15476047 = fieldWeight in 5234, 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=5234)
          0.5 = coord(1/2)
      0.2 = coord(1/5)
    
    Date
    22. 1.2018 11:33:49