221 search results - page 16 / 45 » Chase of Recursive Queries |
ASIACRYPT
2010
Springer
13 years 5 months ago
2010
Springer
We consider the problem of encrypting structured data (e.g., a web graph or a social network) in such a way that it can be efficiently and privately queried. For this purpose, we ...
ECHT
1992
13 years 11 months ago
1992
We present a model for data organized as graphs. Regular expressions over the types of the node and edge labels are used to qualify connected subgraphs. An algebraic language base...
OWLED
2007
13 years 9 months ago
2007
Abstract. We describe a system in which Contextual Logic Programming is used as a mediator for knowledge modeled by ontologies. Our system provides the components required to behav...
ADBIS
2001
Springer
13 years 11 months ago
2001
Springer
In this paper, the most appropriate buffer structure, page replacement policy and buffering scheme for closest pairs queries, where both spatial datasets are stored in R-trees, are...
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
Data exchange is the problem of transforming data structured under a schema (called source) into data structured under a different schema (called target). The emphasis of data exc...