Relation Browser
FedStats site map legacy
Dozens of applications over time from RB to
RAVE
Current work:  RB KIS
Support pair-wise and n-wise comparisons of entity
sets (categories)  For example, topic by time; topic by
time by geography
Brushing a category attribute shows number of items
pertinent to that attribute for each related attribute in
other categories.
Selection yields hit list (previews) that are selectable
Uses: exploration of corpora, search (interactive
Boolean), data mining