Search (3 results, page 1 of 1)

  • × theme_ss:"Data Mining"
  • × type_ss:"el"
  1. Maaten, L. van den: Accelerating t-SNE using Tree-Based Algorithms (2014) 0.02
    0.01803928 = product of:
      0.03607856 = sum of:
        0.03607856 = product of:
          0.07215712 = sum of:
            0.07215712 = weight(_text_:n in 3886) [ClassicSimilarity], result of:
              0.07215712 = score(doc=3886,freq=2.0), product of:
                0.2163874 = queryWeight, product of:
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.050186608 = queryNorm
                0.33346266 = fieldWeight in 3886, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3886)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The paper investigates the acceleration of t-SNE-an embedding technique that is commonly used for the visualization of high-dimensional data in scatter plots-using two tree-based algorithms. In particular, the paper develops variants of the Barnes-Hut algorithm and of the dual-tree algorithm that approximate the gradient used for learning t-SNE embeddings in O(N*logN). Our experiments show that the resulting algorithms substantially accelerate t-SNE, and that they make it possible to learn embeddings of data sets with millions of objects. Somewhat counterintuitively, the Barnes-Hut variant of t-SNE appears to outperform the dual-tree variant.
  2. Lusti, M.: Data Warehousing and Data Mining : Eine Einführung in entscheidungsunterstützende Systeme (1999) 0.01
    0.013599185 = product of:
      0.02719837 = sum of:
        0.02719837 = product of:
          0.05439674 = sum of:
            0.05439674 = weight(_text_:22 in 4261) [ClassicSimilarity], result of:
              0.05439674 = score(doc=4261,freq=2.0), product of:
                0.17574495 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050186608 = queryNorm
                0.30952093 = fieldWeight in 4261, 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=4261)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    17. 7.2002 19:22:06
  3. Jäger, L.: Von Big Data zu Big Brother (2018) 0.01
    0.0067995926 = product of:
      0.013599185 = sum of:
        0.013599185 = product of:
          0.02719837 = sum of:
            0.02719837 = weight(_text_:22 in 5234) [ClassicSimilarity], result of:
              0.02719837 = score(doc=5234,freq=2.0), product of:
                0.17574495 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050186608 = 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)
      0.5 = coord(1/2)
    
    Date
    22. 1.2018 11:33:49