Sciweavers

106 search results - page 4 / 22
» Extending a DBMS with Spatial Operations
Sort
View
MOBIDE
2006
ACM
14 years 19 days ago
Boosting location-based services with a moving object database engine
Composition of temporal and spatial properties of real world objects in a unified data framework results into Moving Object Databases (MOD). MODs are able to process, manage and a...
Nikos Pelekis, Yannis Theodoridis
SSD
1993
Springer
152views Database» more  SSD 1993»
13 years 10 months ago
Realms: A Foundation for Spatial Data Types in Database Systems
: Spatial data types or algebras for database systems should (i) be fully general (which means, closed under set operations, hence e.g. a region value can be a set of polygons with...
Ralf Hartmut Güting, Markus Schneider
SIGMOD
2000
ACM
164views Database» more  SIGMOD 2000»
13 years 11 months ago
A Data Model and Data Structures for Moving Objects Databases
We consider spatio-temporal databases supporting spatial objects with continuously changing position and extent, termed moving objects databases. We formally define a data model f...
Luca Forlizzi, Ralf Hartmut Güting, Enrico Na...
VLDB
1989
ACM
87views Database» more  VLDB 1989»
13 years 10 months ago
Situation Monitoring for Active Databases
paper is concerned with ways of specifying situations and evaluating them efficiently. The techniques described in this paper were developed as part of the HiPAC (High Performance...
Arnon Rosenthal, Sharma Chakravarthy, Barbara T. B...
ADBIS
2004
Springer
124views Database» more  ADBIS 2004»
14 years 2 days ago
Vague Spatial Data Types, Set Operations, and Predicates
Many geographical applications deal with spatial objects that cannot be adequately described by determinate, crisp concepts because of their intrinsically indeterminate and vague n...
Alejandro Pauly, Markus Schneider