25937 search results - page 5025 / 5188 » Geographic Information Systems |
183
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SAC
2010
ACM
16 years 1 months ago
2010
ACM
Target tracking is an important issue in wireless sensor network applications. In this paper, we design a Coverage-Hole Trap Model (CTM) based on a system that contains one moving...
171
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SAC
2010
ACM
16 years 1 months ago
2010
ACM
In GIS and spatial databases, cardinal directions are frequently used as selection and join criteria in query languages. However, most cardinal direction models are only able to h...
180
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EDBT
2010
ACM
16 years 1 months ago
2010
ACM
Schemas, and more generally metadata specifying structural and semantic constraints, are invaluable in data management. They facilitate conceptual design and enable checking of da...
173
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TMA
2010
Springer
16 years 1 months ago
2010
Springer
The Domain Name System (DNS) is a crucial component of today’s Internet. The top layer of the DNS hierarchy (the root nameservers) is facing dramatic changes: cryptographically s...
168
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ACSAC
2009
IEEE
16 years 1 months ago
2009
IEEE
For many years, online criminals have been able to conduct their illicit activities by masquerading behind disreputable Internet Service Providers (ISPs). For example, organizatio...