2674 search results - page 108 / 535 » Data Models and Query Languages for Spatial Databases |
108
Voted
GIS
1995
ACM
15 years 6 months ago
1995
ACM
Polygonal objects are characterized by the following well-known parameters: number of vertices, area, perimeter and so on. These parameters describe the data sets that are used in...
101
Voted
IS
2008
15 years 2 months ago
2008
In spatial networks, clustering adjacent data to disk pages is highly likely to reduce the number of disk page accesses made by the aggregate network operations during query proce...
149
Voted
CORR
2011
Springer
14 years 9 months ago
2011
Springer
We study in this paper provenance information for queries with aggregation. Provenance information was studied in the context of various query languages that do not allow for aggr...
115
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SOFSEM
1998
Springer
15 years 6 months ago
1998
Springer
Abstract. Formal methods based on the mathematical theory of partially ordered sets (i.e., posets) have been used in the database field for the modelling of spatial data since many...
280
Voted
SIGMOD
2002
ACM
16 years 2 months ago
2002
ACM
XML is quickly becoming the de facto standard for data exchange over the Internet. This is creating a new set of data management requirements involving XML, such as the need to st...