5086 search results - page 588 / 1018 » The Power of Comparative Reasoning |
169
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GIS
2010
ACM
15 years 5 months ago
2010
ACM
Many researchers throughout the world have been struggling to better understand and describe Spatial Data Infrastructures (SDIs). Our knowledge of the real forces and mechanisms b...
228
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RR
2010
Springer
15 years 5 months ago
2010
Springer
Role-based access control is a standard mechanism in information systems. Based on the role a user has, certain information is kept from the user even if requested. For ontologies ...
226
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TMC
2012
13 years 9 months ago
2012
—A number of protocols and mechanisms have been proposed to address the problem of initial secure key deployment in wireless networks. Most existing approaches work either with a...
213
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EDBT
2012
ACM
13 years 9 months ago
2012
ACM
Query optimization in RDF Stores is a challenging problem as SPARQL queries typically contain many more joins than equivalent relational plans, and hence lead to a large join orde...
214
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CVPR
2009
IEEE
17 years 1 months ago
2009
IEEE
In this paper, we study the problem of nonnegative graph
embedding, originally investigated in [14] for reaping the
benefits from both nonnegative data factorization and the
spe...