TYPE="text/css">

Graph Visualization Summary of HCIL projects

NetLens is an interactive network visualization system that enables users to explorer data incrementally and refine their queries iteratively using the bipartite graph-style interface. NetLens offers rich support for real tasks that are typically composed of a sequence of low level tasks, which are hard to be handled in traditional graph visualization system. NetLens is general and scalable in analyzing various kinds of network data such as email archives, photo collections, digital libraries, and even case law.

EcoLens is a customization of PaperLens, which allows biologists to browse through a collection of food webs, find webs of interest, and then visualize links using TreePlus. It is essentially a front end to relational data tables that offers coupled interaction, searching, and simple bar chart visualization to replace complex queries.

Fekete, J.D, Wang, D., Dang, N., Aris, A. and Plaisant, C.

Overlaying Graph Links on Treemaps

In Information Visualization 2003 Symposium Poster Compendium, IEEE (2003) 82-83

HCIL-2003-32 , CS-TR-4686

Every graph can be decomposed into a tree structure plus a set of remaining edges. We describe a visualization technique that displays the tree structure as a Treemap and the remaining edges as curved links overlaid on the Treemap. Link curves are designed to show where the link starts and where it ends without requiring an explicit arrow that would clutter the already dense visualization. This technique is effective for visualizing structures where the underlying tree has some meaning, such as Web sites or XML documents with cross-references. Graphic attributes of the links such as color or thickness can be used to represent attributes of the edges. Users can choose to see all links at once or only the links to and from the node or branch under the cursor.