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2003
15 years 3 months ago
Semantic Caching in Ontology-based Mediator Systems
: The integration of heterogenous web sources is still a big challenge. One approach to deal with integration problems is the usage of domain knowledge in form of vocabularies or o...
Marcel Karnstedt, Kai-Uwe Sattler, Ingolf Geist, H...
SAC
2008
ACM
15 years 1 months ago
Trajectory retrieval with latent semantic analysis
The problem of trajectory similarity has been recently attracted research interest considerably, due to its importance in diverse fields. In this work, we study trajectory similar...
Apostolos N. Papadopoulos
AP2PC
2004
Springer
15 years 7 months ago
Peer-to-Peer Semantic Integration of XML and RDF Data Sources
Abstract. Peer-to-Peer (P2P) data management systems combine traditional schema-based integration techniques with the P2P infrastructure. In this paper, we propose a P2P data manag...
Isabel F. Cruz, Huiyong Xiao, Feihong Hsu
ENTCS
2008
120views more  ENTCS 2008»
15 years 2 months ago
Stochastic Bigraphs
In this paper we present a stochastic semantics for Bigraphical Reactive Systems. A reduction and a labelled stochastic semantics for bigraphs are defined. As a sanity check, we p...
Jean Krivine, Robin Milner, Angelo Troina
SIGMOD
1992
ACM
160views Database» more  SIGMOD 1992»
15 years 6 months ago
Extensible/Rule Based Query Rewrite Optimization in Starburst
This paper describes the Query Rewrite facility of the Starburst extensible database system, a novel phase of query optimization. We present a suite of rewrite rules used in Starb...
Hamid Pirahesh, Joseph M. Hellerstein, Waqar Hasan