Bio2RDF Network Of Linked Data Marc-Alexandre Nolin 1-4 , Peter Ansell 2 , François Belleau 1 , Kingsley Idehen 3 , Philippe Rigault 1 , Nicole Tourigny 4 , Paul Roe 2, James M Hogan 2, Michel Dumontier 5 1 Centre de recherche du CHUL, francoisbelleau@yahoo.ca , marc- alexandre.nolin@genome.ulaval.ca , philippe.rigault@genome.ulaval.ca , 2 Queensland University of Technology, p.ansell@qut.edu.au , p.roe@qut.edu.au , j.hogan@qut.edu.au , 3 OpenLink Software, kidehen@openlinksw.com , 4 Université Laval, nicole.tourigny@ift.ulaval.ca , 5 Carleton University, michel_dumontier@carleton.ca Abstract. Background: The Bio2RDF project (http://bio2rdf.org) work to create a network of coherent linked data across the life sciences databases. The project is open source and the following result is from the input of this community. Results: Databases have been converted and linked together with semantic web technologies. The process is to normalize any external URIs in each databases while we do the conversion from the original format to RDF. Conclusion: Each converted databases have his own SPARQL point provided by a Virtuoso Triplestore. Every documents can be retrieve using a REST interface similar for any databases. The REST URL also happen to be the URI. Other tools are also available using the REST interface. Keywords: Linked data, semantic web, URI normalization 1 Introduction In the State of the nation in data integration for bioinformatics, Goble and Stevens (2008) advised the bioinformatics community to address the issue of identity and naming, a necessary condition to facilitate data integration. As part of the Bio2RDF project to build an integrated bioinformatics warehouse on the semantic web, resources have been assigned Universal Resource Identifiers (URIs) that are normalized around the bio2rdf.org namespace (Belleau, F., et.al., 2008). Bio2RDF has created an RDF warehouse that serves over 70 million triples describing the human and mouse genomes (Belleau, F., et.al, DILS2008 in press). The Linked Data 1 initiative aims to make possible the browsing of information on the semantic web, and follows four basic rules. First, resources should be named with Universal Resource Identifiers, or URIs. Second, HTTP URIs are ideal as they provide ownership and resolution. Third, information should be resolvable on the web, and fourth, it is necessary to connect data on the web. Building a critical mass of linked data on the web is a crucial goal for the semantic web. DBpedia (Auer, S., 1 http://www.w3.org/DesignIssues/LinkedData.html