Implementation and Evaluation of a Distributed RDF Storage and Retrieval System
WI '05 Proceedings of the 2005 IEEE/WIC/ACM International Conference on Web Intelligence
Sharing Data on the Grid using Ontologies and distributed SPARQL Queries
DEXA '07 Proceedings of the 18th International Conference on Database and Expert Systems Applications
Bio2RDF: Towards a mashup to build bioinformatics knowledge systems
Journal of Biomedical Informatics
DBpedia: a nucleus for a web of open data
ISWC'07/ASWC'07 Proceedings of the 6th international The semantic web and 2nd Asian conference on Asian semantic web conference
Querying distributed RDF data sources with SPARQL
ESWC'08 Proceedings of the 5th European semantic web conference on The semantic web: research and applications
Editorial: Special section: Data management for eScience
Future Generation Computer Systems
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Scientists need to transfer semantically similar queries across multiple heterogeneous linked datasets. These queries may require data from different locations and the results are not simple to combine due to differences between datasets. A query model was developed to make it simple to distribute queries across different datasets using RDF as the result format. The query model, based on the concept of publicly recognised namespaces for parts of each scientific dataset, was implemented with a configuration that includes a large number of current biological and chemical datasets. The configuration is flexible, providing the ability to transparently use both private and public datasets in any query. A prototype implementation of the model was used to resolve queries for the Bio2RDF website, including both Bio2RDF datasets and other datasets that do not follow the Bio2RDF URI conventions.