100 search results - page 5 / 20 » Query processing in a geographic mediation system |
FOIS
2008
13 years 8 months ago
2008
Many geographic terms, such as "river" and "lake", are vague, with no clear boundaries of application. In particular, the spatial extent of such features is oft...
CLEF
2007
Springer
14 years 26 days ago
2007
Springer
This paper describes the participation of MIRACLE research consortium at the Query Parsing task of GeoCLEF 2007. Our system is composed of three main modules. First, the Named Geo...
EDBTW
2010
Springer
14 years 1 months ago
2010
Springer
There has been lately an increased activity of publishing structured data in RDF due to the activity of the Linked Data community1 . The presence on the Web of such a huge informa...
RIVF
2003
13 years 8 months ago
2003
Abstract— This paper presents our work on supporting flexible query evaluation over large distributed, heterogeneous, and autonomous sources. Flexibility means that the query ev...
KESAMSTA
2007
Springer
14 years 25 days ago
2007
Springer
Queueing Theory deals with problems where some restricted resource should be shared between competitive flow of requests. In this paper we use Queueing Theory methods to perform a...