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DBKDA
2010
IEEE
169views Database» more  DBKDA 2010»
15 years 11 months ago
XLeaf: Twig Evaluation with Skipping Loop Joins and Virtual Nodes
Abstract—XML indexing and search has become an important topic, and twig joins are key building blocks in XML search systems. This paper describes a novel approach using a nested...
Nils Grimsmo, Truls Amundsen Bjørklund, &Os...
DAWAK
1999
Springer
15 years 10 months ago
Dynamic Data Warehouse Design
A data warehouse DW can be seen as a set of materialized views de ned over remote base relations. When a query is posed, it is evaluated locally, using the materialized views, wi...
Dimitri Theodoratos, Timos K. Sellis
AAAI
2007
15 years 8 months ago
DL-Lite in the Light of First-Order Logic
The use of ontologies in various application domains, such as Data Integration, the Semantic Web, or ontology-based data management, where ontologies provide the access to large a...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
PVLDB
2008
107views more  PVLDB 2008»
15 years 6 months ago
XTreeNet: democratic community search
We describe XTreeNet, a distributed query dissemination engine which facilitates democratization of publishing and efficient data search among members of online communities with p...
Emiran Curtmola, Alin Deutsch, Dionysios Logotheti...
PVLDB
2010
146views more  PVLDB 2010»
15 years 1 months ago
Generating Efficient Execution Plans for Vertically Partitioned XML Databases
Experience with relational systems has shown that distribution is an effective way of improving the scalability of query evaluation. In this paper, we show how distributed query e...
Patrick Kling, M. Tamer Özsu, Khuzaima Daudje...