833 search results - page 22 / 167 » Nested Queries in Object Bases |
ICDE
2006
IEEE
14 years 1 months ago
2006
IEEE
Recently, the analysis of moving objects has become one of the most important technologies to be used in various applications such as GIS, navigation systems, and locationbased in...
W2GIS
2005
Springer
14 years 1 months ago
2005
Springer
Location-based services (LBS) constitute an emerging application domain involving spatio-temporal databases. In this paper, i) we propose a classification of LBS, depending on whet...
ICDE
2004
IEEE
14 years 9 months ago
2004
IEEE
Peer-to-peer systems are mainly used for object sharing although they can provide the infrastructure for many other applications. In this paper, we extend the idea of object shari...
EDBT
2004
ACM
14 years 1 months ago
2004
ACM
Abstract. We present a cost-based adaptive clustering method to improve average performance of spatial queries (intersection, containment, enclosure queries) over large collections...
SIGMOD
2002
ACM
14 years 7 months ago
2002
ACM
Time-parameterized queries (TP queries for short) retrieve (i) the actual result at the time that the query is issued, (ii) the validity period of the result given the current mot...