511 search results - page 89 / 103 » Inverting schema mappings |
ER
2004
Springer
14 years 1 months ago
2004
Springer
Updates over virtual XML views that wrap the relational data have not been well supported by current XML data management systems. This paper studies the problem of the existence of...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
We consider the problem of data sharing between autonomous data sources in an environment where constraints cannot be placed on the shared contents of sources. Our solutions rely ...
RULES
1993
Springer
13 years 11 months ago
1993
Springer
Semantic models have shown the utility of arbitrary user-de ned relationships for de ning the semantics of database information, while objectoriented models have developed a stron...
DILS
2004
Springer
13 years 11 months ago
2004
Springer
Abstract. Ecologists spend considerable effort integrating heterogeneous data for statistical analyses and simulations, for example, to run and test predictive models. Our research...
ER
2004
Springer
13 years 11 months ago
2004
Springer
The semantic web envisions a World Wide Web in which data is described with rich semantics and applications can pose complex queries. Ontologies, a cornerstone of the semantic web,...