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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

A Task-Centered Visualization Design Environment and a Method for Measuring the Complexity of Visualization Designs

Suo, Xiaoyuan 17 July 2009 (has links)
Recent years have seen a growing interest in the emerging area of computer security visualization which is about developing visualization methods to help solve computer security problems. In this thesis, we will first present a method for measuring the complexity of information visualization designs. The complexity is measured in terms of visual integration, number of separable dimensions for each visual unit, the complexity of interpreting the visual attributes, number of visual units, and the efficiency of visual search. This method is designed to better assist fellow developers to quickly evaluate multiple design choices, potentially enables computer to automatically measure the complexity of visualization data. We will also analyze the design space of network security visualization. Our main contribution is a new taxonomy that consists of three dimensions – data, visualizations, and tasks. Each dimension is further divided into hierarchical layers, and for each layer we have identified key parameters for making major design choices. This new taxonomy provides a comprehensive framework that can guide network security visualization developers to systematically explore the design space and make informed design decisions. It can also help developers or users systematically evaluate existing network security visualization techniques and systems. Finally it helps developers identify gaps in the design space and create new techniques. Taxonomy showed that most of the existing computer security visualization programs are data centered. However, some studies have shown that task centered visualization is perhaps more effective. To test this hypothesis, we propose a task centered visualization design framework, in which tasks are explicitly identified and organized and visualizations are constructed for specific tasks and their related data parameters. The center piece of this framework is a task tree which dynamically links the raw data with automatically generated visualization. The task tree serves as a high level interaction technique that allows users to conduct problem solving naturally at the task level, while still giving end users flexible control over the visualization construction. This work is currently being extended by building a prototype visualization system based on a Task-centered Visualization Design Architecture.
32

Visualization of Weather Data : Temperature trend visualization

Liu, Jiayi January 2012 (has links)
Weather data are huge. Traditional visualization techniques are limited to show temperature trends. Pixel-based approaches could be used to visualize the huge amount of weather data and in process show the temperature trends. A prototype using this approach is built to make temperature data more understandable in changing trends. It is implemented using a 2D representation and many popular interaction techniques. It is a lightweight and reusable tool to visualize temperatures.
33

How information visualization systems change users' understandings of complex data /

Allendoerfer, Kenneth Robert. Chen, Chaomei, January 2009 (has links)
Thesis (Ph.D.)--Drexel University, 2009. / Includes abstract and vita. Includes bibliographical references (leaves 207-216).
34

A cognition-based framework for the development of visualization literacy

Velez-Rojas, Maria C., January 2009 (has links)
Thesis (Ph. D.)--Rutgers University, 2009. / "Graduate Program in Electrical and Computer Engineering." Includes bibliographical references (p. 140-146).
35

Individual differences in information seeking the effects and interaction of spatial, visualization and domain expertise /

Downing, Ricard E. January 2003 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2003. / Typescript. Vita. Includes bibliographical references (leaves 86-95). Also available on the Internet.
36

Visualizing threat and impact assessment to improve situation awareness /

Nusinov, Michael Cooper. January 2009 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 2009. / Typescript. Includes bibliographical references (leaves 59-61).
37

Individual differences in information seeking : the effects and interaction of spatial, visualization and domain expertise /

Downing, Ricard E. January 2003 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2003. / Typescript. Vita. Includes bibliographical references (leaves 86-95). Also available on the Internet.
38

Visual search interfaces for online digital repositories

Clarkson, Edward Cantey. January 2009 (has links)
Thesis (Ph.D)--Computing, Georgia Institute of Technology, 2009. / Committee Chair: Foley, James D.; Committee Member: Abowd, Gregory D.; Committee Member: Marchionini, Gary; Committee Member: Potts, Colin; Committee Member: Stasko, John. Part of the SMARTech Electronic Thesis and Dissertation Collection.
39

Visualizing wiki author contributions in higher education

Arias Torres, Cristina G. January 2009 (has links)
Thesis (M.A.)--University of Alberta, 2009. / Title from PDF file main screen (viewed on Feb. 19, 2010). A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Arts, [Department of] Humanities Computing, University of Alberta. Includes bibliographical references.
40

Enhancing user experience when displaying 3D models and animation information on mobile platforms: an augmented reality approach

Sosa, Gabriella January 2015 (has links)
Context. Augmented Reality (AR) is a technique that provides additional and varied information to a real environment. The compatibility to smartphones makes AR applications suitable for location based, social, advertisement as well as education oriented applications. Objectives. This study explores if AR is a suitable method of information visualization that can enhance User Experience(UX) comparedto more traditional methods. The information this project focuses on is 3D model and animation information. Methods. This work utilizes a comparative experiment where subjects get to test and evaluate two prototypes, one consisting of static, rendered images and a video and the other being an interactive mobileAR application. Results. Results were gathered with the Attrakdiff™ User Experience questionnaire and an interview. Conclusions. The experiment showed that there is a possibility to enhance user experience when visualizing 3D model and animation information with the help of mobile AR applications.

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