47 search results - page 2 / 10 » Heuristic algorithms for route-search queries over geographi... |
ICDE
2011
IEEE
12 years 9 months ago
2011
IEEE
— In this paper, we study the problem of efficiently computing multiple aggregation queries over a data stream. In order to share computation, prior proposals have suggested ins...
EDBTW
2010
Springer
14 years 15 days 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...
GIS
2004
ACM
14 years 7 months ago
2004
ACM
Despite various interoperability recommendations, heterogeneity of Geographic Information Systems (GIS) is still an issue. This led to an increasing need for a data integration sy...
DAWAK
1999
Springer
13 years 10 months ago
1999
Springer
A Data Warehouse DW can be abstractly seen as a set of materialized views de ned over relations that are stored in distributed heterogeneous databases. The selection of views for...
WWW
2008
ACM
13 years 5 months ago
2008
ACM
A geographic search request contains a query consisting of one or more keywords, and a search-location that the user searches for. In this paper, we study the problem of discoveri...