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Foley, James D.

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    Visualizing Complex Hypermedia Networks through Multiple Hierarchical Views
    (Georgia Institute of Technology, 1995) Mukherjea, Sougata ; Foley, James D. ; Hudson, Scott E.
    Our work concerns visualizing the information space of hypermedia systems using multiple hierarchical views. Although overview diagrams are useful for helping the user to navigate in a hypermedia system, for any real-world system they become too complicated and large to be really useful. This is because these diagrams represent complex network structures which are very difficult to visualize and comprehend. On the other hand, effective visualizations of hierarchies have been developed. Our strategy is to provide the user with different hierarchies, each giving a different perspective to the underlying information space, to help the user better comprehend the information. We propose an algorithm based on content and structural analysis to form hierarchies from hypermedia networks. The algorithm is automatic but can be guided by the user. The multiple hierarchies can be visualized in various ways. We give examples of the implementation of the algorithm on two hypermedia systems.
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    Knowledgeable Development Environments Using Shared Design Models
    (Georgia Institute of Technology, 1992) Neches, Robert ; Foley, James D. ; Szekely, Pedro ; Sukaviriya, Piyawadee (Noi) ; Luo, Ping ; Kovacevic, Srdjan ; Hudson, Scott E.
    We describe MASTERMIND, a step toward our vision of a knowledge-based design-time and run-time environment where human-computer interface development is centered around an all-encompassing design model. The MASTERMIND approach is intended to provide integration and continuity across the entire life cycle of the user interface. In addition, it facilitates higher quality work within each phase of the life cycle. MASTERMIND is an open framework in which the design knowledge base allows multiple tools to come into play and makes knowledge created by each tool accessible to the others.
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    The Graphics, Visualization, and Usability Center Brochure
    (Georgia Institute of Technology, 1991) Badre, Albert N. ; Berger, Marc ; Corso, Gregory M. ; Davis, Elizabeth T. ; Ezquerra, Norberto F. ; Foley, James D. ; Govindaraj, T. ; Guenter, Brian K. ; Hodges, Larry F. ; Hodges, Laurie Beth ; Hudson, Scott E. ; Lawton, Daryl T. ; Mitchell, C. M. (Christine M.) ; Morton, Joan C. ; Mynatt, Elizabeth D. ; Putnam, Bill ; Ribarsky, William ; Rodriguez, Walter ; Shonkwiler, Ronald W. ; Sinclair, Michael J. ; Stasko, John T. ; Sukaviriya, Piyawadee (Noi) ; Trauner, Mary ; Walker, Neff
    Graphics, Visualization, and Usability (GVU) is an interdisciplinary area which draws its intellectual foundations from Computer Science, Psychology, Industrial and Systems Engineering, and Computer Engineering, and which has application to any use of computers to graphically convey information to users. Typical applications are computer aided design, scientific and business data visualization, multimedia, computer-supported cooperative work, computer-based teaching, image understanding, medical imaging, and user interface design. The GVU Center has three missions: education, service, and research. In our educational role, we teach the principles and methods of computer graphics, visualization, and usability to members of the academic community ranging from undergraduate students to graduate students and faculty. Center members teach dozens of courses and seminars among the wide offering of relevant courses listed in Section F. A set of continuing education short courses (Section G) are provided to assist practitioners to stay abreast of current developments. Our service mission is carried out through the Scientific Visualization Lab, a joint undertaking with Information Technology (the campus-wide computer service), to provide state of the art computer graphics hardware and software capabilities to the entire Georgia Tech Community. Over 150 faculty, graduate students and staff use the visualization lab's facilities. Our research, described in Section B, spans the areas of realistic imagery, computer-supported collaborative work, algorithm animation, medical imaging, image understanding, scientific data visualization, animation, user interface software, usability, adaptive user interfaces, multimedia, stereo graphics, virtual environments, image quality, and expert systems in graphics and user interfaces. The twenty faculty and staff who are actively developing the lab's programs are drawn from Psychology, Mechanical Engineering, Office of Interdisciplinary Programs, Physics, Mathematics, Information Technology, and the College of Computing. An active seminar series and brown-bag lunches brings us together every week to discuss current research topics. By integrating these three missions together in a single unit, the Center is developing a highly interactive and collaborative environment where researchers unfamiliar with computer graphics can come for help in integrating scientific visualization into their research work, graphics experts and graduate students can share thier knowledge with one another and find new and interesting problems on which to work, and students can learn in a melting pot of closely-related ideas and collaborations between researchers from multiple disciplines. This intellectually-stimulating environment, complemented by over 40 workstations and other pieces of equipment and over 3000 square feet of newly-renovated lab space, provides a paradigm for the use of interactive computer graphics systems which will be necessary for engineering and scientific research in the 21st century.