Network Visualization: Two new strategies and their case study evaluations
Network visualization has been a lively topic for a half century, but the intense challenges from many facets of this problem demand diverse solutions. While the popular force-directed approaches produce appealing presentations for websites and print, their benefits are limited to showing macro features such as clusters. Interactive approaches that give users control of node and link visibility enable them to make more fine-grained analyses that lead to important insights about relationships among nodes or the presence of exceptional nodes and links. Another important task is to spot the absence of expected nodes and links. One strategy is coordinating network visualizations with statistical measures from graph theory and social network analysis to give users interactive control of ranking, filtering and clustering (http://www.cs.umd.edu/hcil/socialaction). A second strategy involves a novel layout technique to arrange node positions according to their attributes in stable yet comprehensible semantic substrates (http://www.cs.umd.edu/hcil/nvss).
Both strategies were implemented, then evaluated and refined by case study qualitative methods with domain experts (political analysts, healthcare consultants, counter-terrorism experts and bibliometricians) who worked on their own problems during 1 to 6 weeks of observation.
Speaker Details
BEN SHNEIDERMAN (http://www.cs.umd.edu/~ben) is a Professor in the Department of Computer Science and Founding Director (1983-2000) of the Human-Computer Interaction Laboratory (http://www.cs.umd.edu/hcil/) at the University of Maryland. He was elected as a Fellow of the Association for Computing (ACM ) in 1997 and a Fellow of the American Association for the Advancement of Science (AAAS) in 2001. He received the ACM SIGCHI Lifetime Achievement Award in 2001.Ben is the author of Software Psychology: Human Factors in Computer and Information Systems (1980) and Designing the User Interface: Strategies for Effective Human-Computer Interaction (4th ed. 2004) http://www.awl.com/DTUI/. He pioneered the highlighted textual link in 1983, and it became part of Hyperties, a precursor to the web. His move into information visualization helped spawn the successful company Spotfire http://www.spotfire.com/. He is a technical advisor for the HiveGroup and ILOG. With S Card and J. Mackinlay, he co-authored Readings in Information Visualization: Using Vision to Think (1999). His books include Leonardo’s Laptop: Human Needs and the New Computing Technologies (MIT Press), which won the IEEE Distinguished Literary Contribution award in 2004.
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- Speakers:
- Ben Shneiderman
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Jeff Running
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