2674 search results - page 241 / 535 » Data Models and Query Languages for Spatial Databases |
164
click to vote
GIS
2008
ACM
15 years 7 months ago
2008
ACM
Location-based services are increasingly popular and it is a key challenge to efficiently support query processing. We present a novel design to process large numbers of location...
183
click to vote
EDBT
2011
ACM
14 years 10 months ago
2011
ACM
We demonstrate Habitat, a declarative observational debugger for SQL. Habitat facilitates true language-level (not: plan-level) debugging of, probably flawed, SQL queries that yi...
153
click to vote
ADBIS
2006
Springer
16 years 14 days ago
2006
Springer
Web communities involve networks of loosely coupled data sources. Members in those communities should be able to pose queries and gather results from all data sources in the networ...
185
click to vote
DEXAW
2009
IEEE
16 years 1 months ago
2009
IEEE
—This paper compares and illustrates the use of manually and automatically assigned descriptors on German documents extracted from the GIRT Corpus. A second objective is to analy...
334
click to vote
Publication
This paper presents a framework for building and continuously maintaining spatio-temporal histograms (ST-Histograms, for short). ST-Histograms are used for selectivity estimation o...