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.
GRIDL with ACM Computing Classification System (data file).
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