160 search results - page 21 / 32 » Service-oriented execution model supporting data sharing and... |
ICDE
2005
IEEE
14 years 11 days ago
2005
IEEE
Current federated systems deploy cost-based query optimization mechanisms; i.e., the optimizer selects a global query plan with the lowest cost to execute. Thus, cost functions in...
APIN
2000
13 years 6 months ago
2000
Abstract. This paper addresses several issues related to the use of conceptual modeling to support serviceoriented, advanced information systems. It shows how conceptual modeling o...
ISCC
2006
IEEE
14 years 23 days ago
2006
IEEE
Abstract— Today data sources are pervasive and their number is growing tremendously. Current tools are not prepared to exploit this unprecedented amount of information and to cop...
DAWAK
2006
Springer
13 years 10 months ago
2006
Springer
More and more integration systems use ontologies to solve the problem of semantic heterogeneities between autonomous databases. To automate the integration process, a number of the...
EDBTW
2006
Springer
13 years 10 months ago
2006
Springer
Abstract. We describe design and implementation of the linguistic query language DDDquery. This language aims at querying a large linguistic database storing a corpus of richly ann...