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DRM
2003
Springer
13 years 10 months ago
Experiences with the enforcement of access rights extracted from ODRL-based digital contracts
In this paper, we present our experiences concerning the enforcement of access rights extracted from ODRL-based digital contracts. We introduce the generalized Contract Schema (Co...
Susanne Guth, Gustaf Neumann, Mark Strembeck
AINA
2009
IEEE
13 years 10 months ago
Services to the Field: An Approach for Resource Constrained Sensor/Actor Networks
Nowadays more and more devices of daily life are connected to each other and are integrated into massively distributed networks of embedded devices. These devices range from consu...
Christian Buckl, Stephan Sommer, Andreas Scholz, A...
PODS
2010
ACM
242views Database» more  PODS 2010»
13 years 10 months ago
Certain answers for XML queries
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
Claire David, Leonid Libkin, Filip Murlak
ECAI
1998
Springer
13 years 8 months ago
Description Logics with Concrete Domains and Aggregation
Abstract. We extend different Description Logics by concrete domains (such as integers and reals) and by aggregation functions over these domains (such as min;max;count;sum), which...
Franz Baader, Ulrike Sattler
ISMB
1998
13 years 6 months ago
Advanced Query Mechanisms for Biological Databases
Existing query interfaces for biological databases are either based on fixed forms or textual query languages. Users of a fixed form-based query interface are limited to performin...
I-Min A. Chen, Anthony Kosky, Victor M. Markowitz,...