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

Magic Lens

Boolean querying F1 AND F2; F1 OR F2; NOT F1 Lens = ( Filter function, Composition Mode) L1 = F2 L2 = (F1,AND)

Boolean Querying

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

Magnify and Call-out

Multiple Views

Real Valued Queries

Missing Data

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

Thank You