856 search results - page 49 / 172 » Location-based Spatial Queries |
PODS
2004
ACM
14 years 11 months ago
2004
ACM
We present a novel coding-based technique for answering spatial and spatiotemporal queries on objects moving along a system of curves on the plane such as many road networks. We h...
DEXA
2004
Springer
14 years 4 months ago
2004
Springer
Topological predicates between spatial objects have always been a main area of research on spatial data handling, reasoning, and query languages. The focus of research has definit...
ICCSA
2009
Springer
14 years 5 months ago
2009
Springer
Data aggregation in Geographic Information Systems (GIS) is a desirable feature, spatial data are integrated in OLAP engines for this purpose. However, the development and operatio...
AMW
2010
14 years 14 days ago
2010
In this work we present in-network techniques to improve the efficiency of spatial aggregate queries. Such queries are very common in a sensornet setting, demanding more targeted t...
VLDB
1997
ACM
14 years 3 months ago
1997
ACM
Spatial data mining, i.e., discovery of interesting characteristics and patterns that may implicitly exist in spatial databases, is a challenging task due to the huge amounts of s...