I’m pleased to announce the release of Marbles on SourceForge.
Marbles is a server-side application that formats Semantic Web content for XHTML clients using Fresnel lenses and formats. Colored dots are used to correlate the origin of displayed data with a list of data sources, hence the name.
By performing all formatting, data retrieval and storage activities on the server side rather than on a potentially thinly equipped client, the view generation can touch on large amounts of data and requests can be answered relatively quickly. Marbles provides display and database capabilities for DBpedia Mobile.
Data is retrieved from multiple sources and integrated into a single graph that is persisted across user sessions. When provided with the URI of a resource to display, Marbles tries to dereference it. In parallel, it queries Sindice and Falcons for datasources that contain information about the given resource, and Revyu for reviews. In a similar manner as the Semantic Web Client Library, Marbles follows specific predicates found in retrieved data such as owl:sameAs and rdfs:seeAlso in order to gain more information about a resource and to obtain human-friendly resource labels.
Thanks to Eli Lilly and Company for supporting the open-sourcing of Marbles in part by a research grant.
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