184 search results - page 22 / 37 » Querying XML Sources Using an Ontology-Based Mediator |
CIDR
2007
13 years 9 months ago
2007
We present a “black-box” approach to estimating query cardinality that has no knowledge of query execution plans and data distribution, yet provides accurate estimates. It doe...
DAGSTUHL
2007
13 years 9 months ago
2007
Abstract Current, data-driven applications have become more dynamic in nature, with the need to respond to events generated from distributed sources or to react to information extr...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
In mobile and ambient environments, devices need to become autonomous, managing and resolving problems without interference from a user. The database of a (mobile) device can be s...
COOPIS
2003
IEEE
14 years 1 months ago
2003
IEEE
Abstract. Decision-makers in critical fields such as medicine and finance make use of a wide range of information available over the Internet. Mediation, a data integration techn...
DBISP2P
2005
Springer
14 years 1 months ago
2005
Springer
We propose a novel approach for de ning and querying a super-peer within a schema-based super-peer network organized into a two-level architecture: the low level, called the peer l...