736 search results - page 106 / 148 » Confidence-Aware Join Algorithms |
COMPGEOM
2004
ACM
14 years 3 months ago
2004
ACM
We study the problem of computing the visibility graph defined by a set P of n points inside a polygon Q: two points p, q ∈ P are joined by an edge if the segment pq ⊂ Q. Ef...
ICDE
2005
IEEE
14 years 11 months ago
2005
IEEE
Moving objects databases managing spatial objects with continuously changing position and extent over time have recently found large interest in the database community. Queries ab...
IROS
2006
IEEE
14 years 3 months ago
2006
IEEE
Abstract— We describe a model for planar distributed assembly, in which agents move randomly and independently on a twodimensional grid, joining square blocks together to form a ...
ISPAN
2002
IEEE
14 years 2 months ago
2002
IEEE
Index is an important element in databases, and the existence of index is unavoidable. When an index has been built on a particular attribute, database operations (e.g. selection,...
DEXA
1998
Springer
14 years 1 months ago
1998
Springer
Abstract. To achieve acceptable query response times in data warehouse environments, the data have to be pre-aggregated according to the need of the applications and stored redunda...