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» Querying XML Sources Using an Ontology-Based Mediator
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DASFAA
2007
IEEE
138views Database» more  DASFAA 2007»
14 years 2 months ago
An Original Semantics to Keyword Queries for XML Using Structural Patterns
XML is by now the de facto standard for exporting and exchanging data on the web. The need for querying XML data sources whose structure is not fully known to the user and the need...
Dimitri Theodoratos, Xiaoying Wu
COOPIS
1998
IEEE
14 years 5 days ago
Jedi: Extracting and Synthesizing Information from the Web
Jedi (Java based Extraction and Dissemination of Information) is a lightweight tool for the creation of wrappers and mediators to extract, combine, and reconcile information from ...
Gerald Huck, Peter Fankhauser, Karl Aberer, Erich ...
SIGMOD
2002
ACM
119views Database» more  SIGMOD 2002»
14 years 8 months ago
Rate-based query optimization for streaming information sources
Relational query optimizers have traditionally relied upon table cardinalities when estimating the cost of the query plans they consider. While this approach has been and continue...
Stratis Viglas, Jeffrey F. Naughton
OWLED
2007
13 years 9 months ago
On Querying Ontologies with Contextual Logic Programming
Abstract. We describe a system in which Contextual Logic Programming is used as a mediator for knowledge modeled by ontologies. Our system provides the components required to behav...
Cláudio Fernandes, Nuno Lopes 0002, Salvado...
ICWE
2009
Springer
14 years 2 months ago
On Using Distributed Extended XQuery for Web Data Sources as Services
DeXIN (Distributed extended XQuery for data INtegration) integrates multiple, heterogeneous, highly distributed and rapidly changing web data sources in different formats, e.g. XML...
Muhammad Intizar Ali, Reinhard Pichler, Hong Linh ...