63 search results - page 13 / 13 » Vivid Knowledge and Tractable Reasoning |
GIS
2006
ACM
14 years 6 months ago
2006
ACM
If you were told that some object A was perfectly (or somewhat, or not at all) in some direction (e.g., west, above-right) of some reference object B, where in space would you loo...
VLDB
2005
ACM
13 years 10 months ago
2005
ACM
Developing cost models for query optimization is significantly harder for XML queries than for traditional relational queries. The reason is that XML query operators are much mor...
AI
1998
Springer
13 years 5 months ago
1998
Springer
Renewed motives for space exploration have inspired NASA to work toward the goal of establishing a virtual presence in space, through heterogeneous eets of robotic explorers. Info...