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» Semantic Query Optimisation and Rule Graphs
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SEMWEB
2010
Springer
13 years 4 months ago
Representing and Querying Validity Time in RDF and OWL: A Logic-Based Approach
RDF(S) and OWL 2 currently support only static ontologies. In practice, however, the truth of statements often changes with time, and Semantic Web applications often need to repres...
Boris Motik
CSMR
2008
IEEE
14 years 21 days ago
Hecataeus: A What-If Analysis Tool for Database Schema Evolution
Databases are continuously evolving environments, where design constructs are added, removed or updated rather often. Small changes in the database configurations might impact a l...
George Papastefanatos, Fotini Anagnostou, Yannis V...
VLDB
2004
ACM
151views Database» more  VLDB 2004»
13 years 11 months ago
Query Rewrite for XML in Oracle XML DB
Oracle XML DB integrates XML storage and querying using the Oracle relational and object relational framework. It has the capability to physically store XML documents by shredding...
Muralidhar Krishnaprasad, Zhen Hua Liu, Anand Mani...
P2PKM
2004
13 years 7 months ago
RDFGrowth, a P2P annotation exchange algorithm for scalable Semantic Web applications
We present RDFGrowth, an algorithm that addresses a specific yet important scenario: large scale, end user targeted, metadata exchange P2P applications. In this scenario, peers per...
Giovanni Tummarello, Christian Morbidoni, Joackin ...
EKAW
2006
Springer
13 years 10 months ago
Capturing Quantified Constraints in FOL, Through Interaction with a Relationship Graph
As new semantic web standards evolve to allow quantified rules in FOL, we need new ways to capture them from end users. We show how to do this against a graphic view of entities an...
Peter M. D. Gray, Graham J. L. Kemp