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  • × theme_ss:"Visualisierung"
  1. Munzner, T.: Interactive visualization of large graphs and networks (2000) 0.00 
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    Abstract
    Many real-world domains can be represented as large node-link graphs: backbone Internet routers connect with 70,000 other hosts, mid-sized Web servers handle between 20,000 and 200,000 hyperlinked documents, and dictionaries contain millions of words defined in terms of each other. Computational manipulation of such large graphs is common, but previous tools for graph visualization have been limited to datasets of a few thousand nodes. Visual depictions of graphs and networks are external representations that exploit human visual processing to reduce the cognitive load of many tasks that require understanding of global or local structure. We assert that the two key advantages of computer-based systems for information visualization over traditional paper-based visual exposition are interactivity and scalability. We also argue that designing visualization software by taking the characteristics of a target user's task domain into account leads to systems that are more effective and scale to larger datasets than previous work. This thesis contains a detailed analysis of three specialized systems for the interactive exploration of large graphs, relating the intended tasks to the spatial layout and visual encoding choices. We present two novel algorithms for specialized layout and drawing that use quite different visual metaphors. The H3 system for visualizing the hyperlink structures of web sites scales to datasets of over 100,000 nodes by using a carefully chosen spanning tree as the layout backbone, 3D hyperbolic geometry for a Focus+Context view, and provides a fluid interactive experience through guaranteed frame rate drawing. The Constellation system features a highly specialized 2D layout intended to spatially encode domain-specific information for computational linguists checking the plausibility of a large semantic network created from dictionaries. The Planet Multicast system for displaying the tunnel topology of the Internet's multicast backbone provides a literal 3D geographic layout of arcs on a globe to help MBone maintainers find misconfigured long-distance tunnels. Each of these three systems provides a very different view of the graph structure, and we evaluate their efficacy for the intended task. We generalize these findings in our analysis of the importance of interactivity and specialization for graph visualization systems that are effective and scalable.
  2. Hook, P.A.; Gantchev, A.: Using combined metadata sources to visualize a small library (OBL's English Language Books) (2017) 0.00 
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    Abstract
    Data from multiple knowledge organization systems are combined to provide a global overview of the content holdings of a small personal library. Subject headings and classification data are used to effectively map the combined book and topic space of the library. While harvested and manipulated by hand, the work reveals issues and potential solutions when using automated techniques to produce topic maps of much larger libraries. The small library visualized consists of the thirty-nine, digital, English language books found in the Osama Bin Laden (OBL) compound in Abbottabad, Pakistan upon his death. As this list of books has garnered considerable media attention, it is worth providing a visual overview of the subject content of these books - some of which is not readily apparent from the titles. Metadata from subject headings and classification numbers was combined to create book-subject maps. Tree maps of the classification data were also produced. The books contain 328 subject headings. In order to enhance the base map with meaningful thematic overlay, library holding count data was also harvested (and aggregated from duplicates). This additional data revealed the relative scarcity or popularity of individual books.
    Type
    a
  3. Wattenberg, M.; Viégas, F.; Johnson, I.: How to use t-SNE effectively (2016) 0.00 
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    Abstract
    Although extremely useful for visualizing high-dimensional data, t-SNE plots can sometimes be mysterious or misleading. By exploring how it behaves in simple cases, we can learn to use it more effectively. We'll walk through a series of simple examples to illustrate what t-SNE diagrams can and cannot show. The t-SNE technique really is useful-but only if you know how to interpret it.
    Type
    a
  4. Tufte, E.R.: ¬The visual display of quantitative information (1983) 0.00 
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    Footnote
    Rez. in: College & research libraries 52(1991) S.382-383 (P. Wilson)
    Pages
    197 S
  5. Xiaoyue M.; Cahier, J.-P.: Iconic categorization with knowledge-based "icon systems" can improve collaborative KM (2011) 0.00 
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    Abstract
    Icon system could represent an efficient solution for collective iconic categorization of knowledge by providing graphical interpretation. Their pictorial characters assist visualizing the structure of text to become more understandable beyond vocabulary obstacle. In this paper we are proposing a Knowledge Engineering (KM) based iconic representation approach. We assume that these systematic icons improve collective knowledge management. Meanwhile, text (constructed under our knowledge management model - Hypertopic) helps to reduce the diversity of graphical understanding belonging to different users. This "position paper" also prepares to demonstrate our hypothesis by an "iconic social tagging" experiment which is to be accomplished in 2011 with UTT students. We describe the "socio semantic web" information portal involved in this project, and a part of the icons already designed for this experiment in Sustainability field. We have reviewed existing theoretical works on icons from various origins, which can be used to lay the foundation of robust "icons systems".
    Type
    a
  6. Barton, P.: ¬A missed opportunity : why the benefits of information visualisation seem still out of sight (2005) 0.00 
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    Abstract
    This paper aims to identify what information visualisation is and how in conjunction with the computer it can be used as a tool to expand understanding. It also seeks to explain how information visualisation has been fundamental to the development of the computer from its very early days to Apple's launch of the now ubiquitous W.I.M.P (Windows, Icon, Menu, Program) graphical user interface in 1984. An attempt is also made to question why after many years of progress and development though the late 1960s and 1970s, very little has changed in the way we interact with the data on our computers since the watershed of the Macintosh and in conclusion where the future of information visualisation may lie.
  7. Collins, C.: WordNet explorer : applying visualization principles to lexical semantics (2006) 0.00 
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    Abstract
    Interface designs for lexical databases in NLP have suffered from not following design principles developed in the information visualization research community. We present a design paradigm and show it can be used to generate visualizations which maximize the usability and utility ofWordNet. The techniques can be generally applied to other lexical databases used in NLP research.
  8. Eibl, M.: Visualisierung im Dokument Retrieval : Theoretische und praktische Zusammenführung von Softwareergonomie und Graphik Design (2000) 0.00 
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    Pages
    xxx S
  9. Wachsmann, L.: Entwurf und Implementierung eines Modells zur Visualisierung von OWL-Properties als Protégé-PlugIn mit Layoutalgorithmen aus Graphviz (2008) 0.00 
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    Pages
    125 S
  10. Lin, X.; Bui, Y.: Information visualization (2009) 0.00 
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    Type
    a
  11. Trunk, D.: Inhaltliche Semantische Netze in Informationssystemen : Verbesserung der Suche durch Interaktion und Visualisierung (2005) 0.00 
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    Pages
    96 S. + CD
  12. Sieber, W.: Visualisierung von Thesaurus-Strukturen unter besonderer Berücksichtigung eines Hyperbolic Tree Views (2004) 0.00 
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    Pages
    97 S
  13. Sieber, W.: Thesaurus-Arbeit versus Informationsvisualisierung : Analyse und Evaluation am Maßstab der Usability (2007) 0.00 
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    Pages
    108 S
  14. Aufreiter, M.: Informationsvisualisierung und Navigation im Semantic Web (2008) 0.00 
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    Pages
    V, 50 S
  15. Rohner, M.: Betrachtung der Data Visualization Literacy in der angestrebten Schweizer Informationsgesellschaft (2018) 0.00 
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    Pages
    VIII, 108 S
  16. Maas, J.F.: SWD-Explorer : Design und Implementation eines Software-Tools zur erweiterten Suche und grafischen Navigation in der Schlagwortnormdatei (2010) 0.00 
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    Pages
    4, III, 122 S
  17. Hemmje, M.: Unterstützung von Information-Retrieval-Dialogen mit Informationssystemen durch interaktive Informationsvisualisierung (1999) 0.00 
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    X,171 S
  18. Meier, P.: Visualisierung von Kommunikationsstrukturen für kollaboratives Wissensmanagement in der Lehre (2006) 0.00 
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    Pages
    XI, 296 S

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