Practical RDF
An efficient SQL-based RDF querying scheme
VLDB '05 Proceedings of the 31st international conference on Very large data bases
RDF/RDFS-based Relational Database Integration
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
Bringing Relational Data into the SemanticWeb using SPARQL and Relational.OWL
ICDEW '06 Proceedings of the 22nd International Conference on Data Engineering Workshops
Provenance management in curated databases
Proceedings of the 2006 ACM SIGMOD international conference on Management of data
SPARQ2L: towards support for subgraph extraction queries in rdf databases
Proceedings of the 16th international conference on World Wide Web
RDF123: From Spreadsheets to RDF
ISWC '08 Proceedings of the 7th International Conference on The Semantic Web
Triplify: light-weight linked data publication from relational databases
Proceedings of the 18th international conference on World wide web
R2D: A Bridge between the Semantic Web and Relational Visualization Tools
ICSC '09 Proceedings of the 2009 IEEE International Conference on Semantic Computing
Discovering the semantics of relational tables through mappings
Journal on Data Semantics VII
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The plethora of information available to today's users due to the Internet phenomenon has brought forth an associated concern, namely, determination of the trustworthiness of information. Provenance information, such as who is responsible for the data or how the data came to be, plays a pivotal role in addressing this concern by providing additional facts that could serve as a basis for establishing the authenticity of information. Awareness of the importance of data provenance has ensured that current technologies include support for the ability to record provenance information. These include Semantic Web technologies such as Resource Description Framework (RDF) that records data provenance through the process of reification. Reification enables the association of a level of trust with RDF triples, thereby enabling the validation of the authenticity of the triples. RDF's rapid acceptance has created an associated demand for RDF data modeling and visualization tools and our research, called R2D, is aimed at addressing and providing a solution for this demand by leveraging and reusing existing mature technologies. The work presented in this paper extends our earlier work on relationalization of the RDF concept of reification by providing support for complex reifications that include a variety of blank nodes. Algorithmic enhancements that were incorporated into the various R2D components in order to support relationalization of complex reifications are presented along with performance graphs and screenshots of the relational equivalent of a reified RDF store as seen through an open source relational visualization tool.