90 search results - page 16 / 18 » Realms: A Foundation for Spatial Data Types in Database Syst... |
SAC
2010
ACM
14 years 18 days ago
2010
ACM
In this paper, we explore the problem of processing a novel type of location based queries, named the location based top-k query, which involves both of spatial and non-spatial sp...
PSSS
2003
13 years 7 months ago
2003
: RDF-based tools promise to provide a base for reasoning about metadata and about situated data—data describing entities situated in time and space—that is superior to alterna...
PERVASIVE
2010
Springer
13 years 4 months ago
2010
Springer
ing model abstracts over various types of positioning systems and incorporates the capture of uncertainty, serving as a foundation on which developers can apply sensor-fusion techn...
GIS
2007
ACM
14 years 6 months ago
2007
ACM
This paper presents an approach to visualize and analyze 3D building information models within virtual 3D city models. Building information models (BIMs) formalize and represent d...
EDBT
2009
ACM
14 years 17 days ago
2009
ACM
Data stream management systems usually have to process many long-running queries that are active at the same time. Multiple queries can be evaluated more efficiently together tha...