Sciweavers

709 search results - page 74 / 142
» Efficient Evaluation of All-Nearest-Neighbor Queries
Sort
View
ICDT
2010
ACM
180views Database» more  ICDT 2010»
16 years 3 months ago
Foundations of SPARQL Query Optimization
We study fundamental aspects related to the efficient processing of the SPARQL query language for RDF, proposed by the W3C to encode machine-readable information in the Semantic W...
Michael Schmidt, Michael Meier, Georg Lausen
CIDR
2003
109views Algorithms» more  CIDR 2003»
15 years 7 months ago
SkyQuery: A Web Service Approach to Federate Databases
Traditional science searched for new objects and phenomena that led to discoveries. Tomorrow's science will combine together the large pool of information in scientific archi...
Tanu Malik, Alexander S. Szalay, Tamas Budavari, A...
DKE
2006
123views more  DKE 2006»
15 years 6 months ago
Cost models for distance joins queries using R-trees
The K-Closest-Pairs Query (K-CPQ), a type of distance join in spatial databases, discovers the K pairs of objects formed from two different datasets with the K smallest distances....
Antonio Corral, Yannis Manolopoulos, Yannis Theodo...
VLDB
2002
ACM
161views Database» more  VLDB 2002»
15 years 5 months ago
Distributed Search over the Hidden Web: Hierarchical Database Sampling and Selection
Many valuable text databases on the web have non-crawlable contents that are "hidden" behind search interfaces. Metasearchers are helpful tools for searching over many s...
Panagiotis G. Ipeirotis, Luis Gravano
PVLDB
2008
160views more  PVLDB 2008»
15 years 5 months ago
BayesStore: managing large, uncertain data repositories with probabilistic graphical models
Several real-world applications need to effectively manage and reason about large amounts of data that are inherently uncertain. For instance, pervasive computing applications mus...
Daisy Zhe Wang, Eirinaios Michelakis, Minos N. Gar...