302 search results - page 15 / 61 » Spatial Aggregation: Language and Applications |
VL
2003
IEEE
14 years 24 days ago
2003
IEEE
Thispaper presents an approach to spatial specifications for Web information transformation'. Extended from the Reserved Graph Grammar (RGG), a Spatial Graph Grammar (SGG) is...
COSIT
1999
Springer
13 years 11 months ago
1999
Springer
We extend the theory about terminological default reasoning by using a logical base language that can represent spatioterminological phenomena. Based on this description logic lang...
EUROPAR
2008
Springer
13 years 9 months ago
2008
Springer
Abstract. Grids are very complex and volatile infrastructures that exhibit parallel and distributed characteristics. To harness their complexity as well as the increasing intricacy...
SDB
1995
13 years 11 months ago
1995
In this paper we discuss two data models for spatial database systems: the linear data model and the topological data model. Both can be used to model a wide range of applications....
VLDB
1987
ACM
13 years 11 months ago
1987
ACM
is at least ae powerful as SQL. Two well known relational query languages that have a sound theoretical foundation are relational algebra and relational calculus. As SQL is more cl...