87 search results - page 8 / 18 » Optimization and evaluation of shortest path queries |
EDBT
2012
ACM
11 years 9 months ago
2012
ACM
With the popularization of GPS-enabled devices there is an increasing interest for location-based queries. In this context, one interesting problem is processing top-k spatial key...
ICDE
2011
IEEE
12 years 11 months ago
2011
IEEE
—In this paper, we address the problem of answering continuous route planning queries over a road network, in the presence of updates to the delay (cost) estimates of links. A si...
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
Scientific data in the life sciences is distributed over various independent multi-format databases and is constantly expanding. We discuss a scenario where a life science research...
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
Navigational queries on Web-accessible life science sources pose unique query optimization challenges. The objects in these sources are interconnected to objects in other sources, ...
CSB
2005
IEEE
2005
IEEE
BioNavigation: Using Ontologies to Express Meaningful Navigational Queries Over Biological Resources
14 years 29 days ago
Exploiting the complex maze of publicly available Biological resources to implement scientific data collection pipelines poses a multitude of challenges to biologists in accurate...