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» Aggregate queries over ontologies
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DLOG
2011
13 years 1 months ago
The Complexity of Conjunctive Query Abduction in DL-Lite
In order to meet usability requirements, most logic-based applications provide explanation facilities for reasoning services. This holds also for DLs, where research focused on the...
Diego Calvanese, Magdalena Ortiz, Mantas Simkus, G...
PSSS
2003
13 years 11 months ago
DLDB: Extending Relational Databases to Support Semantic Web Queries
Abstract: We present DLDB, a knowledge base system that extends a relational database management system with additional capabilities for DAML+OIL inference. We discuss a number of ...
Zhengxiang Pan, Jeff Heflin
AUSAI
2008
Springer
14 years 4 days ago
Exploiting Ontological Structure for Complex Preference Assembly
When a user is looking for a product recommendation they usually lack expert knowledge regarding the items they are looking for. Ontologies on the other hand are crafted by experts...
Gil Chamiel, Maurice Pagnucco
COMMA
2008
13 years 11 months ago
Arguments in OWL: A Progress Report
Abstract. In previous work, we presented an RDFS ontology, based on the Argument Interchange Format (AIF), for describing arguments and argument schemes. We also implemented a pilo...
Iyad Rahwan, Bita Banihashemi
ICDE
2010
IEEE
288views Database» more  ICDE 2010»
14 years 10 months ago
Global Iceberg Detection over Distributed Data Streams
In today's Internet applications or sensor networks we often encounter large amounts of data spread over many physically distributed nodes. The sheer volume of the data and ba...
Ashwin Lall, Haiquan (Chuck) Zhao, Jun Xu, Mitsuno...