3773 search results - page 184 / 755 » Using Ontologies for Integrated Geographic Information Syste... |
120
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ICDT
2007
ACM
15 years 10 months ago
2007
ACM
Abstract. We define and study formal privacy guarantees for information integration systems, where sources are related to a public schema by mappings given by source-to-target dep...
148
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IJCAI
2003
15 years 6 months ago
2003
The problem of identifying approximately duplicate objects in databases is an essential step for the information integration process. Most existing approaches have relied on gener...
134
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SSD
2001
Springer
15 years 9 months ago
2001
Springer
The need to access spatial data at multiple levels of detail is a fundamental requirement of many applications of geographical information, yet conventional spatial database access...
148
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ADHOC
2007
15 years 4 months ago
2007
In large and dense mobile ad hoc networks, position-based routing protocols can offer significant performance improvement over topology-based routing protocols by using location...
144
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GI
2005
Springer
15 years 10 months ago
2005
Springer
: A distributed service to model and control contextual information in mobile and ubiquitous computing environments is presented in this paper. We introduce the general user model ...