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CIKM
2010
Springer
15 years 3 months ago
Query optimization for ontology-based information integration
In recent years, there has been an explosion of publicly available RDF and OWL data sources. In order to effectively and quickly answer queries in such an environment, we present...
Yingjie Li, Jeff Heflin
SIGMOD
2002
ACM
114views Database» more  SIGMOD 2002»
16 years 4 months ago
Time-parameterized queries in spatio-temporal databases
Time-parameterized queries (TP queries for short) retrieve (i) the actual result at the time that the query is issued, (ii) the validity period of the result given the current mot...
Yufei Tao, Dimitris Papadias
214
Voted
PODC
2011
ACM
14 years 7 months ago
The complexity of robust atomic storage
We study the time-complexity of robust atomic read/write storage from fault-prone storage components in asynchronous message-passing systems. Robustness here means wait-free tolera...
Dan Dobre, Rachid Guerraoui, Matthias Majuntke, Ne...
CNL
2009
15 years 5 months ago
Controlled English Ontology-Based Data Access
Abstract. As it is well-known, querying and managing structured data in natural language is a challenging task due to its ambiguity (syntactic and semantic) and its expressiveness....
Camilo Thorne, Diego Calvanese
133
Voted
CIKM
2005
Springer
15 years 10 months ago
Structured queries in XML retrieval
Document-centric XML is a mixture of text and structure. With the increased availability of document-centric XML content comes a need for query facilities in which both structural...
Jaap Kamps, Maarten Marx, Maarten de Rijke, Bö...