418 search results - page 21 / 84 » The Web as a Data Source for Spatial Databases |
SIGMOD
2000
ACM
15 years 1 months ago
2000
ACM
In this paper we study how to refresh a local copy of an autonomous data source to maintain the copy up-to-date. As the size of the data grows, it becomes more difficult to mainta...
SIGMOD
1997
ACM
15 years 1 months ago
1997
ACM
Infomaster is an information integration system that provides integrated access tomultiple distributed heterogeneous information sources on the Internet, thus giving the illusion ...
KDD
2010
ACM
14 years 8 months ago
2010
ACM
Crisis Management and Disaster Recovery have gained immense importance in the wake of recent man and nature inflicted calamities. A critical problem in a crisis situation is how t...
101
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ER
2009
Springer
15 years 22 days ago
2009
Springer
Ontologies have been extensively used to model domain-specific knowledge. Recent research has applied ontologies to enhance the discovery and retrieval of geographic data in Spatia...
164
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ICDE
2006
IEEE
15 years 10 months ago
2006
IEEE
Extracting and integrating object information from the Web is of great significance for Web data management. The existing Web information extraction techniques cannot provide sati...