Sciweavers

2043 search results - page 268 / 409
» The Limits of Querying Ontologies
Sort
View
SIGMOD
2010
ACM
214views Database» more  SIGMOD 2010»
14 years 3 months ago
ParaTimer: a progress indicator for MapReduce DAGs
Time-oriented progress estimation for parallel queries is a challenging problem that has received only limited attention. In this paper, we present ParaTimer, a new type of timere...
Kristi Morton, Magdalena Balazinska, Dan Grossman
DASFAA
2007
IEEE
165views Database» more  DASFAA 2007»
14 years 2 months ago
Making the Most of Cache Groups
Cache groups are a powerful concept for database caching, which is used to relieve the backend database load and to keep referenced data close to the application programs at the &q...
Andreas Bühmann, Theo Härder
CVDB
2005
ACM
14 years 9 days ago
Optimizing progressive query-by-example over pre-clustered large image databases
The typical mode for querying in an image content-based information system is query-by-example, which allows the user to provide an image as a query and to search for similar imag...
Anicet Kouomou Choupo, Laure Berti-Equille, Annie ...
SIGMOD
2008
ACM
169views Database» more  SIGMOD 2008»
14 years 10 months ago
MCDB: a monte carlo approach to managing uncertain data
To deal with data uncertainty, existing probabilistic database systems augment tuples with attribute-level or tuple-level probability values, which are loaded into the database al...
Ravi Jampani, Fei Xu, Mingxi Wu, Luis Leopoldo Per...
ESCIENCE
2007
IEEE
14 years 4 months ago
Decentralised Resource Discovery Service for Large Scale Federated Grids
Efficient Resource discovery mechanism is one of the fundamental requirement for Grid computing systems, as it aids in resource management and scheduling of applications. Resourc...
Rajiv Ranjan, Lipo Chan, Aaron Harwood, Shanika Ka...