The enhanced parallel sets view with various user interactions for in-depth comparison. (a) The parallel sets view provides rearranging algorithms that minimize line crossings. (b) When users hover a mouse pointer over the node of a cluster, the stable groups contained in it are highlighted while other stable groups fade out to reveal flows more clearly. By using a filtering feature on the stable group histogram at the bottom of the parallel sets view, users can hide less interesting bands. (c) Moreover, by using common angle plot, users can compare the sizes of different bands more accurately.