907 search results - page 37 / 182 » Efficient Optimization of Iterative Queries |
EDBT
2000
ACM
14 years 1 months ago
2000
ACM
The paper presents Spatial Distributions Server – an analytical tool aimed at efficient creation, storing and analyzing of spatial distributions. Methods of approximation of spat...
GIS
2005
ACM
14 years 10 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
SODA
2004
ACM
13 years 10 months ago
2004
ACM
We introduce the Bloomier filter, a data structure for compactly encoding a function with static support in order to support approximate evaluation queries. Our construction gener...
SIGMOD
2004
ACM
14 years 9 months ago
2004
ACM
Trees and graphs are widely used to model biological databases. Providing efficient algorithms to support tree-based or graph-based querying is therefore an important issue. In th...
SIGMOD
2001
ACM
14 years 9 months ago
2001
ACM
The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. In contrast to previous sampling...