223 search results - page 1 / 45 » Expressive and Efficient Peer-to-Peer Queries |
SEBD
2008
13 years 6 months ago
2008
Abstract. Peer Data Management Systems (PDMSs) have been recently proposed as an evolution of Peer-To-Peer (P2P) systems toward a more semantics-based description of peers' co...
SEMWEB
2010
Springer
13 years 2 months ago
2010
Springer
Given the large number of Semantic Web Services that can be created from online sources by using existing annotation tools, expressive formalisms and efficient and scalable approac...
HICSS
2005
IEEE
13 years 10 months ago
2005
IEEE
It is demonstrated how to provide a peer-to-peer system that supports an expressive query language while maintaining efficient distribution over a wide-area network. The key is to...
ADBIS
2009
Springer
13 years 2 months ago
2009
Springer
We consider the problem of selecting views and indexes that minimize the evaluation costs of the important queries under an upper bound on the disk space available for storing the ...
ICDE
2003
IEEE
14 years 6 months ago
2003
IEEE
Query optimizers use base-table statistics to derive statistics on the sub-plans that are enumerated during optimization. In practice, traditional optimizers rely on a number of s...