Keyphrases
- d objects
- human computer interaction
- user interaction
- user interface
- data sets
- interface design
- multiple objects
- user friendly
- viewpoint
- moving objects
- computer vision
- data model
- digital libraries
- website
- conceptual model
- spatial relations
- spatial relationships
- object model
- databases
- complex scenes
- formal specification
- focus of attention
- real time
- computer interface