550 search results - page 7 / 110 » An Expressive Language for Linear Spatial Database Queries |
DGO
2003
13 years 8 months ago
2003
The paper introduces a query tool which allows users (either database experts or non-specialist users) to visually formulate and execute spatial queries directed to large federal ...
ADBIS
2004
Springer
14 years 27 days ago
2004
Springer
Many geographical applications deal with spatial objects that cannot be adequately described by determinate, crisp concepts because of their intrinsically indeterminate and vague n...
PODS
1991
ACM
13 years 11 months ago
1991
ACM
In this paper we characterise exactly the complexity of a set based database language called SRL, which presents a unified framework for queries and updates. By imposing simple s...
PODS
2010
ACM
14 years 17 days ago
2010
ACM
For many problems arising in the setting of graph querying (such as finding semantic associations in RDF graphs, exact and approximate pattern matching, sequence alignment, etc.)...
DEXA
1995
Springer
13 years 11 months ago
1995
Springer
Abstract. The object-oriented database management systems store references to objects (implicit joins, precomputed joins), and use path expressions in query languages. One way of e...