Previously, we presented a system called Alignment Viewer that uses informa
tion visualization techniques to visualize similarities between a single DN
A sequence and a large database of other sequences [Chi et al., IEEE Visual
ization '95 pp. 44-51, IEEE CS (1995); Chi et al.. IEEE Visualization '96,
pp. 133-140 and 477, IEEE CS (1996)]. In this paper, we extend, summarize,
and describe the system using several interesting case studies, We present
our comb glyph technique for visualizing alignments between sequences. In t
his paper, we also extend the original system by incorporating computationa
l steering, and the visualization of differences between data sets. The cas
e studies and the new extended system present our approach of extracting si
gnificant relationships in the biological data set. (C) 2000 SPIE and IS&T.
[S1017-9909(00)01204-6].