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ICDE
2002
IEEE
147views Database» more  ICDE 2002»
15 years 16 days ago
Decoupled Query Optimization for Federated Database Systems
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...
Amol Deshpande, Joseph M. Hellerstein
ESWS
2009
Springer
14 years 5 months ago
Representing, Querying and Transforming Social Networks with RDF/SPARQL
As social networks are becoming ubiquitous on the Web, the Semantic Web goals indicate that it is critical to have a standard model allowing exchange, interoperability, transformat...
Mauro San Martín, Claudio Gutierrez
DLOG
2004
14 years 18 days ago
Semantics Driven Support for Query Formulation
In this paper we describe the principles of the design and development of an intelligent query interface, done in the context of the SEWASIE (SEmantic Webs and AgentS in Integrate...
Paolo Dongilli, Enrico Franconi, Sergio Tessaris
WECWIS
2008
IEEE
100views ECommerce» more  WECWIS 2008»
14 years 5 months ago
ISENS: A Multi-ontology Query System for the Semantic Deep Web
We present ISENS, a distributed, end-to-end, ontologybased information integration system. In response to a user’s query, our system is capable of retrieving facts from data sou...
Abir Qasem, Dimitre A. Dimitrov, Jeff Heflin
XSYM
2007
Springer
150views Database» more  XSYM 2007»
14 years 5 months ago
Fast Answering of XPath Query Workloads on Web Collections
Several web applications (such as processing RSS feeds or web service messages) rely on XPath-based data manipulation tools. Web developers need to use XPath queries effectively o...
Mariano P. Consens, Flavio Rizzolo