Sciweavers

239 search results - page 5 / 48
» Complete Geometrical Query Languages
Sort
View
PODS
2005
ACM
104views Database» more  PODS 2005»
14 years 7 months ago
Views and queries: determinacy and rewriting
We investigate the question of whether a query can be answered using a set V of views. We first define the problem in information-theoretic terms: we say that V determines if V pr...
Luc Segoufin, Victor Vianu
SMA
2009
ACM
208views Solid Modeling» more  SMA 2009»
14 years 1 months ago
Accelerating geometric queries using the GPU
We present practical algorithms for accelerating geometric queries on models made of NURBS surfaces using programmable Graphics Processing Units (GPUs). We provide a generalized f...
Adarsh Krishnamurthy, Sara McMains, Kirk Haller
ICDE
2006
IEEE
152views Database» more  ICDE 2006»
14 years 8 months ago
A Complete and Efficient Algebraic Compiler for XQuery
As XQuery nears standardization, more sophisticated XQuery applications are emerging, which often exploit the entire language and are applied to non-trivial XML sources. We propos...
Christopher Re, Jérôme Siméon,...
ICMB
2005
IEEE
118views Business» more  ICMB 2005»
14 years 29 days ago
A Context-Sensitive Service Discovery Protocol for Mobile Computing Environments
Service discovery is important in mobile and pervasive computing environments, where the set of resources available to an entity changes dynamically over time. This paper describe...
Ricky Robinson, Jadwiga Indulska
GIS
1998
ACM
13 years 7 months ago
Natural-Language Spatial Relations Between Linear and Areal Objects: The Topology and Metric of English-Language Terms
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...
A. Rashid B. M. Shariff, Max J. Egenhofer, David M...