1171 search results - page 226 / 235 » A Logical Language for Expressing Authorizations |
ICDT
2010
ACM
14 years 10 months ago
2010
ACM
Schema mapping composition is a fundamental operation in schema management and data exchange. The mapping composition problem has been extensively studied for a number of mapping ...
ICDT
2010
ACM
15 years 9 months ago
2010
ACM
Sources of data uncertainty and imprecision are numerous. A way to handle this uncertainty is to associate probabilistic annotations to data. Many such probabilistic database mode...
124
click to vote
NORDICHI
2004
ACM
15 years 5 months ago
2004
ACM
One vision of a context-aware pervasive networking environment promises the user a seamless access to surrounding services using her personal mobile device. This requires that the...
VRCAI
2004
ACM
15 years 5 months ago
2004
ACM
Despite steady research advances in many aspects of virtual reality, building and testing virtual worlds remains to be a very difficult process. Most virtual environments are stil...
ICDT
2010
ACM
15 years 3 months ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...