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Visualization Of Urban Concepts In Two Directions Of Thinking

Ban, Hyowon
http://rave.ohiolink.edu/etdc/view?acc_num=osu1249306949

Abstract Details

2009, Doctor of Philosophy, Ohio State University, Geography.
This study pursues questions about the top-down and the bottom-up directions of geographical thinking. A question about the top-down direction: 1) how geographical concepts could influence spatial data, is asked in the first half of the study, and another question for the bottom-up direction: 2) how existing data could inform geographical concepts, is asked in another half of the study. To answer the first question, Part 1 deals with the uncertainty of an exurban concept as a primary example, since there are many different definitions of exurbanization and the spatial boundaries based on them are not identical. Several definitions of exurbanization are investigated to determine how they represent exurban areas, and formal representations of the fuzzy-set approach are developed to analyze and visualize the uncertainty of the exurban definitions. The study develops a software interface that would allow interactive exploration, analysis, negotiation, and visualization of uncertain geographical concepts. Selected exurban definitions and empirical spatial data demonstrate concept comparison and concept creation activities using the interface. A case study of five different definitions of exurbanization in Ohio, U.S. shows different degrees of agreement on the exurban boundary, and also illustrates an impact of different approaches to negotiate the multiple definitions. In addition, Part 1 provides results from user evaluations of the developed software interface to better support the exchange of knowledge and communication between exurban stakeholders in Ohio. Findings from the evaluation indicate that the software interface could be useful for urban ontology research and land use, with support of the different ontologies of various actors for a common concept. To answer the second question, Part 2 attempts to derive some time-geography concepts from a set of spatio-temporal choreographic information developed by a multi-disciplinary project, “The Synchronous Objects project” (http://synchronousobjects.osu.edu/) based on an existing dance movie, “One Flat Thing, reproduced”. Part 2 starts with asking several guiding questions to understand the data and derive geographical concepts from it, and then introduces corresponding methods, data, and results. The methodology illustrates how the data can be explored, analyzed, and represented in both geographical and statistical approaches such as spatial analysis, 2D/3D geovisualization, multivariate visual analysis, static and animated brushing techniques, and the linking between multiple plots. For the spatio-temporal analysis of the dance, Part 2 develops a rich database on choreographic information and uses it as a test-bed for the analysis and the visualization. The results are presented in the form of a series of static and animated visualizations based on several experiments, and demonstrate distinct differences and similarities in activity patterns and temporal clustering from the dance data. Part 2 also identifies some limitations of existing exploratory software in dealing with large volumes of spatio-temporal data. Based on the findings from Part 1 and Part 2 of this study, future extensions integrating the approaches in the two parts are suggested.
Ola Ahlqvist (Advisor)
Noel Cressie (Committee Member)
Darla Munroe (Committee Member)
Alan Price (Committee Member)
233 p.
Dance; Design; Geography; Statistics
geography; visualization; urban; ontology; exurban; virtual reality; GIS; GIScience; dance; choreography; brushing; visual analytics; 3D; animation

Recommended Citations

Citations

  • Ban, H. (2009). Visualization Of Urban Concepts In Two Directions Of Thinking [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1249306949

    APA Style (7th edition)

  • Ban, Hyowon. Visualization Of Urban Concepts In Two Directions Of Thinking. 2009. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1249306949.

    MLA Style (8th edition)

  • Ban, Hyowon. "Visualization Of Urban Concepts In Two Directions Of Thinking." Doctoral dissertation, Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1249306949

    Chicago Manual of Style (17th edition)

osu1249306949
652
© 2009, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.