710 search results - page 21 / 142 » Relational Expressive Power of Constraint Query Languages |
DEXA
2009
Springer
14 years 2 months ago
2009
Springer
Describing relational data sources (i.e. databases) by means of ontologies constitutes the foundation of most of the semantic based approaches to data access and integration. In sp...
CSL
2007
Springer
13 years 11 months ago
2007
Springer
We compare the expressive power of a class of well-structured transition systems that includes relational automata, Petri nets, lossy channel systems, and constrained multiset rewr...
CIVR
2004
Springer
14 years 1 months ago
2004
Springer
Most image retrieval systems only allow a fragment of text or an example image as a query. Most users have more complex information needs that are not easily expressed in either of...
SIGCOMM
2005
ACM
14 years 1 months ago
2005
ACM
The Internet’s core routing infrastructure, while arguably robust and efficient, has proven to be difficult to evolve to accommodate the needs of new applications. Prior researc...
ATVA
2009
Springer
14 years 2 months ago
2009
Springer
Weakly relational numeric domains express restricted classes of linear inequalities that strike a balance between what can be described and what can be efficiently computed. Popula...