137 search results - page 23 / 28 » Query optimization for ontology-based information integratio... |
PVLDB
2008
13 years 6 months ago
2008
Supporting graceful schema evolution represents an unsolved problem for traditional information systems that is further exacerbated in web information systems, such as Wikipedia a...
IDEAS
2003
IEEE
14 years 11 days ago
2003
IEEE
The objective of this paper is to investigate the problems related to the extensional integration of information sources. In particular, we propose an approach for managing incons...
ICDE
2003
IEEE
14 years 8 months ago
2003
IEEE
The XML Wrapper is a new feature of the federated database capabilities of DB2/UDB v8. It enables users and applications to issue SQL queries against XML data from a variety of so...
DASFAA
2006
IEEE
14 years 1 months ago
2006
IEEE
When hosting XML information on relational backends, a mapping has to be established between the schemas of the information source and the target storage repositories. A rich body ...
IJCSA
2008
13 years 7 months ago
2008
: Skyline Queries have recently received a lot of attention due to their intuitive query capabilities. Following the concept of Pareto optimality all `best' database objects a...