Search (3 results, page 1 of 1)

  • × theme_ss:"Data Mining"
  • × theme_ss:"Visualisierung"
  1. Information visualization in data mining and knowledge discovery (2002) 0.02
    0.019544907 = sum of:
      0.0034817536 = product of:
        0.024372274 = sum of:
          0.024372274 = weight(_text_:visual in 1789) [ClassicSimilarity], result of:
            0.024372274 = score(doc=1789,freq=2.0), product of:
              0.2084343 = queryWeight, product of:
                5.291659 = idf(docFreq=604, maxDocs=44218)
                0.039389215 = queryNorm
              0.11693025 = fieldWeight in 1789, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.291659 = idf(docFreq=604, maxDocs=44218)
                0.015625 = fieldNorm(doc=1789)
        0.14285715 = coord(1/7)
      0.016063154 = sum of:
        0.005389763 = weight(_text_:m in 1789) [ClassicSimilarity], result of:
          0.005389763 = score(doc=1789,freq=2.0), product of:
            0.098018035 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.039389215 = queryNorm
            0.054987464 = fieldWeight in 1789, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.015625 = fieldNorm(doc=1789)
        0.010673391 = weight(_text_:22 in 1789) [ClassicSimilarity], result of:
          0.010673391 = score(doc=1789,freq=2.0), product of:
            0.13793433 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.039389215 = 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)
    
    Date
    23. 3.2008 19:10:22
    Footnote
    Rez. in: JASIST 54(2003) no.9, S.905-906 (C.A. Badurek): "Visual approaches for knowledge discovery in very large databases are a prime research need for information scientists focused an extracting meaningful information from the ever growing stores of data from a variety of domains, including business, the geosciences, and satellite and medical imagery. This work presents a summary of research efforts in the fields of data mining, knowledge discovery, and data visualization with the goal of aiding the integration of research approaches and techniques from these major fields. The editors, leading computer scientists from academia and industry, present a collection of 32 papers from contributors who are incorporating visualization and data mining techniques through academic research as well application development in industry and government agencies. Information Visualization focuses upon techniques to enhance the natural abilities of humans to visually understand data, in particular, large-scale data sets. It is primarily concerned with developing interactive graphical representations to enable users to more intuitively make sense of multidimensional data as part of the data exploration process. It includes research from computer science, psychology, human-computer interaction, statistics, and information science. Knowledge Discovery in Databases (KDD) most often refers to the process of mining databases for previously unknown patterns and trends in data. Data mining refers to the particular computational methods or algorithms used in this process. The data mining research field is most related to computational advances in database theory, artificial intelligence and machine learning. This work compiles research summaries from these main research areas in order to provide "a reference work containing the collection of thoughts and ideas of noted researchers from the fields of data mining and data visualization" (p. 8). It addresses these areas in three main sections: the first an data visualization, the second an KDD and model visualization, and the last an using visualization in the knowledge discovery process. The seven chapters of Part One focus upon methodologies and successful techniques from the field of Data Visualization. Hoffman and Grinstein (Chapter 2) give a particularly good overview of the field of data visualization and its potential application to data mining. An introduction to the terminology of data visualization, relation to perceptual and cognitive science, and discussion of the major visualization display techniques are presented. Discussion and illustration explain the usefulness and proper context of such data visualization techniques as scatter plots, 2D and 3D isosurfaces, glyphs, parallel coordinates, and radial coordinate visualizations. Remaining chapters present the need for standardization of visualization methods, discussion of user requirements in the development of tools, and examples of using information visualization in addressing research problems.
    Type
    m
  2. Kraker, P.; Kittel, C,; Enkhbayar, A.: Open Knowledge Maps : creating a visual interface to the world's scientific knowledge based on natural language processing (2016) 0.01
    0.009045861 = product of:
      0.018091721 = sum of:
        0.018091721 = product of:
          0.12664205 = sum of:
            0.12664205 = weight(_text_:visual in 3205) [ClassicSimilarity], result of:
              0.12664205 = score(doc=3205,freq=6.0), product of:
                0.2084343 = queryWeight, product of:
                  5.291659 = idf(docFreq=604, maxDocs=44218)
                  0.039389215 = queryNorm
                0.6075874 = fieldWeight in 3205, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  5.291659 = idf(docFreq=604, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3205)
          0.14285715 = coord(1/7)
      0.5 = coord(1/2)
    
    Abstract
    The goal of Open Knowledge Maps is to create a visual interface to the world's scientific knowledge. The base for this visual interface consists of so-called knowledge maps, which enable the exploration of existing knowledge and the discovery of new knowledge. Our open source knowledge mapping software applies a mixture of summarization techniques and similarity measures on article metadata, which are iteratively chained together. After processing, the representation is saved in a database for use in a web visualization. In the future, we want to create a space for collective knowledge mapping that brings together individuals and communities involved in exploration and discovery. We want to enable people to guide each other in their discovery by collaboratively annotating and modifying the automatically created maps.
  3. Wattenberg, M.; Viégas, F.; Johnson, I.: How to use t-SNE effectively (2016) 0.01
    0.005389763 = product of:
      0.010779526 = sum of:
        0.010779526 = product of:
          0.021559052 = sum of:
            0.021559052 = weight(_text_:m in 3887) [ClassicSimilarity], result of:
              0.021559052 = score(doc=3887,freq=2.0), product of:
                0.098018035 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.039389215 = queryNorm
                0.21994986 = fieldWeight in 3887, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3887)
          0.5 = coord(1/2)
      0.5 = coord(1/2)