369 search results - page 65 / 74 » Querying Distributed RDF Data Sources with SPARQL |
DOLAP
2003
ACM
14 years 22 days ago
2003
ACM
Motivated by the need for more flexible OLAP systems, this paper presents work on logical integration of external data in OLAP databases, carried out in cooperation between the D...
KRDB
1998
13 years 8 months ago
1998
We present a semantic caching approach for optimizing the performance of information mediators. A critical problem with information mediators, particularly those gathering and int...
ADMA
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. Crawling the deep web often requires the selection of an appropriate set of queries so that they can cover most of the documents in the data source with low cost. This ca...
BMCBI
2007
13 years 7 months ago
2007
Background: A fundamental goal of the U.S. National Institute of Health (NIH) "Roadmap" is to strengthen Translational Research, defined as the movement of discoveries i...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
In recent years, the data management community has begun to consider situations in which data access is closely tied to network routing and distributed acquisition: examples includ...