Sciweavers

396 search results - page 59 / 80
» Semantic Optimization of Preference Queries
Sort
View
WWW
2008
ACM
14 years 8 months ago
Efficiently querying rdf data in triple stores
Efficiently querying RDF [1] data is being an important factor in applying Semantic Web technologies to real-world applications. In this context, many efforts have been made to st...
Ying Yan, Chen Wang, Aoying Zhou, Weining Qian, Li...
AAAI
2006
13 years 9 months ago
Characterizing Data Complexity for Conjunctive Query Answering in Expressive Description Logics
Description Logics (DLs) are the formal foundations of the standard web ontology languages OWL-DL and OWL-Lite. In the Semantic Web and other domains, ontologies are increasingly ...
Magdalena Ortiz, Diego Calvanese, Thomas Eiter
VLDB
2007
ACM
182views Database» more  VLDB 2007»
14 years 1 months ago
Continuous Queries in Oracle
This paper describes Continuous Queries (CQ) in Oracle RDBMS, a feature that incorporates stream and complex event processing into an RDBMS, the first such attempt in commercial d...
Sankar Subramanian, Srikanth Bellamkonda, Hua-Gang...
SIGMOD
2005
ACM
162views Database» more  SIGMOD 2005»
14 years 7 months ago
Clio grows up: from research prototype to industrial tool
Clio, the IBM Research system for expressing declarative schema mappings, has progressed in the past few years from a research prototype into a technology that is behind some of I...
Laura M. Haas, Mauricio A. Hernández, Howar...
IDEAS
2006
IEEE
100views Database» more  IDEAS 2006»
14 years 1 months ago
Data-Driven Publication of Relational Databases
The paper presents a framework for publishing relational databases in textual documents such as mails, HTML pages, LATEX or BibTex files, plain texts, etc. The publication proces...
Sonia Guehis, Philippe Rigaux, Emmanuel Waller