52 search results - page 10 / 11 » Towards a Theory of Spatial Database Queries |
ICDE
2007
IEEE
14 years 7 months ago
2007
IEEE
To access data sources on the Web, a crucial step is wrapping, which translates query responses, rendered in textual HTML, back into their relational form. Traditionally, this pro...
SAC
2010
ACM
14 years 29 days ago
2010
ACM
Extensive research activities are recently directed towards the Semantic Web as a future form of the Web. Consequently, Web search as the key technology of the Web is evolving tow...
EDBT
2008
ACM
14 years 6 months ago
2008
ACM
The spatial and temporal databases have been studied widely and intensively over years. In this paper, we study how to answer queries of finding the best departure time that minim...
ICDE
2007
IEEE
14 years 7 months ago
2007
IEEE
We propose a class of constraints, referred to as conditional functional dependencies (CFDs), and study their applications in data cleaning. In contrast to traditional functional ...
GIS
2007
ACM
14 years 7 months ago
2007
ACM
The collection of moving object data is becoming more and more common, and therefore there is an increasing need for the efficient analysis and knowledge extraction of these data ...