Database Reference
In-Depth Information
Magkanaraki, A., Tannen, V., Christophides, V.,
& Plexousakis, D. (2004). Viewing the Seman-
tic Web through RVL lenses.
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Tolle, K., & Wleklinski, F. (2004).
Easy RDF
query language (eRQL).
Retrieved from http://
www.dbis.informatik.uni-frankfurt.de/~tolle/
RDF/eRQL
Wu, Z., Eadon, G., Das, S., Chong, E. I.,
Kolovski, V., Annamalai, M., & Srinivasan, J.
(2008). Implementing an inference engine for
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KEY TERMS AND DEFINITIONS
Prud'hommeaux, E., & Seaborne, A. (2008).
SPARQL query language for RDF. W3C
Candi-
date Recommendation 15 January 2008.
Retrieved
from http://www.w3.org/TR/rdf-sparql-query
Ontology:
a formal and consensual dictionary
of categories and properties of entities of a domain
and the relationships that hold among them.
Ontology-Based Database (OBDB):
a data
source which contains i) a (local) ontology, ii)
possibly some references from this ontology to
external (shared) ontologies, iii) a set of data, iv)
and finally a relationship between each data and
the ontological notion which explicit its meaning.
An OBDB has two main characteristics: i) both
ontologies and data are represented in a unique
database and the same processing can be applied
on them (Insert, Update, Querying, Versioning,
Seaborne, A. (2004). RDQL- A query language
for RDF.
W3C Member Submission 9 January
2004
. Retrieved from http://www.w3.org/Submis-
sion/2004/SUBM-RDQL-20040109
Seaborne, A., & Manjunath, G. (2008).
SPARQL/Update: A language for updating
RDF graphs. Retrieved from http://jena.hpl.
hp.com/~afs/SPARQL-Update.html
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