TY - GEN
T1 - Completeness statements about RDF data sources and their use for query answering
AU - Darari, Fariz
AU - Nutt, Werner
AU - Pirrò, Giuseppe
AU - Razniewski, Simon
PY - 2013
Y1 - 2013
N2 - With thousands of RDF data sources available on the Web covering disparate and possibly overlapping knowledge domains, the problem of providing high-level descriptions (in the form of metadata) of their content becomes crucial. In this paper we introduce a theoretical framework for describing data sources in terms of their completeness. We show how existing data sources can be described with completeness statements expressed in RDF. We then focus on the problem of the completeness of query answering over plain and RDFS data sources augmented with completeness statements. Finally, we present an extension of the completeness framework for federated data sources.
AB - With thousands of RDF data sources available on the Web covering disparate and possibly overlapping knowledge domains, the problem of providing high-level descriptions (in the form of metadata) of their content becomes crucial. In this paper we introduce a theoretical framework for describing data sources in terms of their completeness. We show how existing data sources can be described with completeness statements expressed in RDF. We then focus on the problem of the completeness of query answering over plain and RDFS data sources augmented with completeness statements. Finally, we present an extension of the completeness framework for federated data sources.
UR - http://www.scopus.com/inward/record.url?scp=84891934653&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-41335-3_5
DO - 10.1007/978-3-642-41335-3_5
M3 - Conference contribution
AN - SCOPUS:84891934653
SN - 9783642413346
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 66
EP - 83
BT - The Semantic Web, ISWC 2013 - 12th International Semantic Web Conference, Proceedings
T2 - 12th International Semantic Web Conference, ISWC 2013
Y2 - 21 October 2013 through 25 October 2013
ER -