Visualizing Relationships in Hypertext Documents Using Quasi-Hierarchical Graphs in 3D Hyperbolic Space
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CONTRIBUTORS:
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JOURNAL:
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YEAR:
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2008
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PUB TYPE:
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Journal Article
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SUBJECT(S):
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information visualization; website visualization; quasi-hierarchical graphs; 3d hyperbolic space; human-computer interaction
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DISCIPLINE:
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Information Systems/Technology
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HTTP:
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http://www.ics.uplb.edu.ph/node/228
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LANGUAGE:
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English
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PUB ID:
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103-444-124
(Last edited on
2008/07/19 02:05:22 GMT-6)
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SPONSOR(S):
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ABSTRACT:
The formation of abstract interactive visual metaphors has been used in recent years to detect and discover relationships among dynamic data in large information spaces. Representing a web site’s logical structure via these abstract metaphors can help web designers, engineers, administrators, content authors, and users in managing and maintaining the vast information the web site represents. This paper describes a space-efficient visualization model that automatically crawls through a website and renders a visualization of its entire sitemap. This model can be used especially for displaying and navigating a very large website in three-dimensional (3D) hyperbolic space. It employs a focus+context navigation method to enable the exploration of large sites in a limited display, allowing the users to focus on certain parts of the web site without hiding the non-focused parts and losing the general overview of the structure. The visualization employs quasi-hierarchical graphs as its layout structure to effectively visualize at once a very large number of pages and their relations to each other efficiently utilizing the 3D space to display more information. Pages are represented as nodes, with the currently focused node rendered bigger than the other nodes that are not focused. The color of a node represents the type and file format of the page, while forward links, back links and breadcrumbs are represented as colored edges. Animation is provided to preserve the user’s mental map while exploring the web site hierarchy. The 3D visualization provides the user a more realistic look and feel of a website’s information structure via a user-friendly human-computer interaction with flexible positioning and enlargement of web targeted pages in details.
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