GRIDL: GRaphical Interface for Digital Libraries

Digital library search results are usually shown as a textual list, with 10-20 items per page.  Viewing several thousand search results at once on a two-dimensional display with continuous variables is a promising alternative.  Since these displays can overwhelm some users, we created GRIDL, a simplified two-dimensional display that uses categorical and hierarchical axes.  Users appreciate the meaningful and limited number of terms on each hieraxis.  At each grid point of the display we show a cluster of color-coded dots or a bar chart.  Users see the entire result set and can then click on labels to move down a level in the hierarchy. 

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Shneiderman, B., Feldman, D., Rose, A., and Ferre Grau, X. (February 1999)
Visualizing Digital Library Search Results with Categorical and Hierarchial Axes
Proc. 5th ACM International Conference on Digital Libraries (San Antonio, TX, June 2-7, 2000), ACM, New York, 57-66.
CS-TR-3992 , UMIACS-TR-99-12, ISR-TR-99-75

Rose, A., Ding, W., Marchionini, G., Beale Jr., J., Nolet, V. (1997)
Building an Electronic Learning Community: From Design to Implementation
Proceedings of CHI 98, Los Angeles, CA, 18-23 April 1998, ACM, New York, 203-210
CS-TR-3831 , UMIACS-TR-97-67,CLIS-TR-97-12

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