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Enhanced Dynamic Queries via Movable Filters - Ken Fishkin, Maureen C. Stone
Magic Lens Starfield Display (interactive filtering, zooming) + Movable Filter (multiple simultaneous queries)
Advantages • Boolean Querying • Magnification while maintaining global context • Multiple simultaneous views • Real Valued data • Missing Data
Boolean querying F1 AND F2; F1 OR F2; NOT F1 Lens = ( Filter function, Composition Mode) L1 = F2 L2 = (F1,AND)
Compound lens f( ) = (F1 AND F2) OR (F3 AND F4) Click through button C1 = F1 AND F2 C2 = F3 AND F4 f( ) = C1 OR C2
HCI Metrics • High Learnability • High Throughput • Initial User Satisfaction • User Retention over time • Easy Error- recovery
Other methods • No new concepts involved (as in Parallel co-ordinates) • No fiddling with the axes (as in Star co-ordinates) • Limited amount of data (as in Table Lens) • Missing Data