405 search results - page 6 / 81 » Distributing Semantic Constraints Between Heterogeneous Data... |
SIGMOD
1999
ACM
13 years 12 months ago
1999
ACM
In this paper we present a mechanism for translating constraint queries, i.e., Boolean expressions of constraints, across heterogeneous information sources. Integrating such syste...
EUSFLAT
2009
13 years 5 months ago
2009
This paper proposes an approach aimed at obviating empty answers for a family of conjunctive queries involving Boolean or fuzzy value constraints. Contrary to the approaches based ...
DEXAW
2005
IEEE
14 years 1 months ago
2005
IEEE
We present the first prototype of INDUS (Intelligent Data Understanding System), a federated, query-centric system for information integration and knowledge acquisition from dist...
CLUSTER
2006
IEEE
14 years 1 months ago
2006
IEEE
High availability plays an important role in heterogeneous clusters, where processors operate at different speeds and are not continuously available for processing. Existing sched...
ER
2004
Springer
14 years 1 months ago
2004
Springer
This paper uses a knowledge-based approach to querying heterogeneous spatial databases based on an ontology and conceptual and attribute similarities. The ontology, which may be in...